-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, ATL/0QQEfEreNuFKFGLiOME99TCji4k1vqI+eBioAyWZlqE/wstr9bpx7v9o/4mg 5J1hS1OSPE5yguV/B1gAPg== 0000902664-10-002158.txt : 20100316 0000902664-10-002158.hdr.sgml : 20100316 20100316163040 ACCESSION NUMBER: 0000902664-10-002158 CONFORMED SUBMISSION TYPE: SC 13D/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20100316 DATE AS OF CHANGE: 20100316 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: TRIMERIS INC CENTRAL INDEX KEY: 0000911326 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 561808663 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-52299 FILM NUMBER: 10685846 BUSINESS ADDRESS: STREET 1: 3500 PARAMOUNT PARKWAY CITY: MORRISVILLE STATE: NC ZIP: 27560 BUSINESS PHONE: (919) 419-6050 MAIL ADDRESS: STREET 1: 3500 PARAMOUNT PARKWAY CITY: MORRISVILLE STATE: NC ZIP: 27560 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: HealthCor Management, L.P. CENTRAL INDEX KEY: 0001343781 IRS NUMBER: 202893581 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A BUSINESS ADDRESS: STREET 1: 152 WEST 57TH STREET, 47TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10019 BUSINESS PHONE: 212-622-7888 MAIL ADDRESS: STREET 1: 152 WEST 57TH STREET, 47TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10019 SC 13D/A 1 p10-1053sc13da.txt HEALTHCOR MANAGEMENT, L.P. UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 9) Trimeris, Inc. - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock, $0.001 Par Value Per Share - -------------------------------------------------------------------------------- (Title Class of Securities) 896263100 - -------------------------------------------------------------------------------- (CUSIP Number) HealthCor Management, L.P. Carnegie Hall Tower 152 West 57th Street, 47th Floor New York, New York 10019 Attention: Mr. Steven J. Musumeci (212) 622-7888 With a Copy to: Marc Weingarten Schulte Roth & Zabel LLP 919 Third Avenue New York, New York 10022 (212) 756-2280 - ------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) March 12, 2010 - ------------------------------------------------------------------------------- (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box. [ ] NOTE: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties to whom copies are to be sent. (Continued on following pages) (Page 1 of 16 Pages) - -------------------------- (1) The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page. The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes) - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 2 of 16 - -------------------------- ---------------------- - ------------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor Management, L.P. 20-2893581 - ------------------------------------------------------------------------------ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ------------------------------------------------------------------------------- (3) SEC USE ONLY - ------------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** WC - ------------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ------------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - ------------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 ---------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 4,446,977 OWNED BY ---------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING ---------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 4,446,977 - ------------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,446,977 - ------------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ------------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9% - ------------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** PN - ------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ------------------------ CUSIP NO. 896263100 13D/A PAGE 3 of 16 - -------------------------- ------------------------ - ------------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor Associates, LLC 20-2891849 - ------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ------------------------------------------------------------------------------- (3) SEC USE ONLY - ------------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ------------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ------------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - ------------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 ---------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 4,446,977 OWNED BY ---------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING ---------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 4,446,977 - ------------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,446,977 - ------------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ------------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9% - ------------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** OO- limited liability company - ------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 4 of 16 - -------------------------- ---------------------- - ----------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor Offshore, Ltd. N/A - ----------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ----------------------------------------------------------------------------- (3) SEC USE ONLY - ----------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ----------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ----------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands - ----------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 -------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 2,885,325 OWNED BY -------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 2,885,325 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,885,325 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 12.9% - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** OO-limited company - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 5 of 16 - -------------------------- ---------------------- - ------------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor Offshore Master Fund, L.P. N/A - ------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ------------------------------------------------------------------------------- (3) SEC USE ONLY - ------------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ------------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ------------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands - ------------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 ---------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 2,885,325 OWNED BY ---------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 2,885,325 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,885,325 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 12.9% - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** OO-limited company - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 6 of 16 - -------------------------- ---------------------- - ----------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor Offshore GP, LLC N/A - ----------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ----------------------------------------------------------------------------- (3) SEC USE ONLY - ----------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ----------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ----------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands - ----------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 -------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 2,885,325 OWNED BY -------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 2,885,325 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,885,325 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 12.9% - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** OO-limited company - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 7 of 16 - -------------------------- ---------------------- - ----------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor Hybrid Offshore, Ltd. N/A - ----------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ----------------------------------------------------------------------------- (3) SEC USE ONLY - ----------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ----------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ----------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands - ----------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 -------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 690,110 OWNED BY -------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 690,110 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 690,110 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.1% - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** OO-limited company - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 8 of 16 - -------------------------- ---------------------- - ----------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor Hybrid Offshore Master Fund, L.P. N/A - ----------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ----------------------------------------------------------------------------- (3) SEC USE ONLY - ----------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ----------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ----------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands - ----------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 -------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 690,110 OWNED BY -------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 690,110 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 690,110 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.1% - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** OO-limited company - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 9 of 16 - -------------------------- ---------------------- - ----------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor Hybrid Offshore GP, LLC N/A - ----------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ----------------------------------------------------------------------------- (3) SEC USE ONLY - ----------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ----------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ----------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands - ----------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 -------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 690,110 OWNED BY -------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 690,110 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 690,110 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.1% - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** OO-limited company - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 10 of 16 - -------------------------- ---------------------- - ----------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor Group, LLC 51-0551771 - ----------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ----------------------------------------------------------------------------- (3) SEC USE ONLY - ----------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ----------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ----------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - ----------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 -------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 4,413,657 OWNED BY -------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 4,413,657 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,413,657 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.8% - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** OO-limited liability company - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 11 of 16 - -------------------------- ---------------------- - ----------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor Capital, L.P. 51-0551770 - ----------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ----------------------------------------------------------------------------- (3) SEC USE ONLY - ----------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ----------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ----------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - ----------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 -------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 838,222 OWNED BY -------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 838,222 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 838,222 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.8% - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** PN - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 12 of 16 - -------------------------- ---------------------- - ----------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HealthCor L.P. 20-3240266 - ----------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ----------------------------------------------------------------------------- (3) SEC USE ONLY - ----------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ----------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ----------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - ----------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 -------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 838,222 OWNED BY -------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 838,222 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 838,222 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.8 % - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** PN - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 13 of 16 - -------------------------- ---------------------- - ----------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Arthur Cohen - ----------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ----------------------------------------------------------------------------- (3) SEC USE ONLY - ----------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ----------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ----------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION United States - ----------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 -------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 4,446,977 OWNED BY -------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 4,446,977 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,446,977 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9% - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** IN - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 14 of 16 - -------------------------- ---------------------- - ----------------------------------------------------------------------------- (1) NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Joseph Healey - ----------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [_] - ----------------------------------------------------------------------------- (3) SEC USE ONLY - ----------------------------------------------------------------------------- (4) SOURCE OF FUNDS ** AF - ----------------------------------------------------------------------------- (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] - ----------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION United States - ----------------------------------------------------------------------------- (7) SOLE VOTING POWER NUMBER OF 0 -------------------------------------------------------------- SHARES (8) SHARED VOTING POWER BENEFICIALLY 4,446,977 OWNED BY -------------------------------------------------------------- EACH (9) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------------- PERSON WITH (10) SHARED DISPOSITIVE POWER 4,446,977 - ----------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,446,977 - ----------------------------------------------------------------------------- (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ** [ ] - ----------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9% - ----------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON ** IN - ----------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 15 of 16 - -------------------------- ---------------------- Item 1. SECURITY AND ISSUER This Amendment No. 9 ("Amendment No. 9") hereby amends the Schedule 13D filed by HealthCor Management, L.P, HealthCor Associates, LLC, HealthCor Offshore, Ltd., HealthCor Hybrid Offshore, Ltd., HealthCor Group, LLC, HealthCor Capital, L.P., HealthCor, L.P., Joseph Healey and Arthur Cohen on August 8, 2007 (as corrected by the amendment filed on August 9, 2007), as previously amended (the "Original Schedule 13D" and collectively with Amendment No. 9, the "Schedule 13D") with regards to the shares of Common Stock of Trimeris, Inc., par value $0.001 (the "Shares"). ITEM 4. PURPOSE OF TRANSACTION Item 4 of the Schedule 13D is hereby amended by the addition of the following: On March 12, 2010, Joseph Healey and Arthur Cohen (the "Principals"), principals of HealthCor who are directors on the Issuer's board of directors (the "Board"), notified the Issuer that they do not intend to stand for reelection to the Board at the Issuer's 2010 annual meeting of shareholders. The Principals agree with and are fully supportive of the views of the other Board members with respect to the current management and strategic direction of the Issuer and accordingly believe that their continued presence on the Board is no longer necessary. ITEM 5. INTEREST IN SECURITIES OF THE ISSUER Item 5(c) of the Schedule 13D is hereby amended and restated in the entirety as follows: (c) The Reporting Persons have not effected any transactions in the Shares during the past 60 days. - -------------------------- ---------------------- CUSIP NO. 896263100 13D/A PAGE 16 of 16 - -------------------------- ---------------------- SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date: March 16, 2010 HEALTHCOR MANAGEMENT, L.P., for itself and as manager on behalf of (i) HEALTHCOR OFFSHORE, LTD. and (ii) HEALTHCOR HYBRID OFFSHORE, LTD. By: HealthCor Associates, LLC, its general partner By: /s/ John H. Coghlin ------------------------------------- Name: John H. Coghlin Title: General Counsel HEALTHCOR CAPITAL, L.P., for itself and as general partner on behalf of HEALTHCOR L.P. By: HealthCor Group, LLC, its general partner By: /s/ John H. Coghlin ------------------------------------- Name: John H. Coghlin Title: General Counsel HEALTHCOR OFFSHORE GP, LLC, for itself and as general partner of behalf of HEALTHCOR OFFSHORE MASTER FUND, L.P. By: HealthCor Group, LLC, its general partner By: /s/ John H. Coghlin ------------------------------------- Name: John H. Coghlin Title: General Counsel HEALTHCOR HYBRID OFFSHORE GP, LLC, for itself and as general partner of behalf of HEALTHCOR HYBRID OFFSHORE MASTER FUND, L.P. By: HealthCor Group, LLC, its general partner By: /s/ John H. Coghlin ------------------------------------- Name: John H. Coghlin Title: General Counsel HEALTHCOR ASSOCIATES, LLC By: /s/ John H. Coghlin ------------------------------------- Name: John H. Coghlin Title: General Counsel HEALTHCOR GROUP, LLC By: /s/ John H. Coghlin ------------------------------------- Name: John H. Coghlin Title: General Counsel JOSEPH HEALEY, Individually /s/ Joseph Healey ----------------------------------- ARTHUR COHEN, Individually /s/ Arthur Cohen ----------------------------------- -----END PRIVACY-ENHANCED MESSAGE-----