0001104659-23-083857.txt : 20230725
0001104659-23-083857.hdr.sgml : 20230725
20230725163041
ACCESSION NUMBER: 0001104659-23-083857
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20230721
FILED AS OF DATE: 20230725
DATE AS OF CHANGE: 20230725
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: RA Capital Healthcare Fund LP
CENTRAL INDEX KEY: 0001315082
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40551
FILM NUMBER: 231108952
BUSINESS ADDRESS:
STREET 1: 200 BERKELEY STREET
STREET 2: 18TH FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
BUSINESS PHONE: 6177782500
MAIL ADDRESS:
STREET 1: 200 BERKELEY STREET
STREET 2: 18TH FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
FORMER NAME:
FORMER CONFORMED NAME: RA Capital Biotech Fund LP
DATE OF NAME CHANGE: 20050121
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: RA CAPITAL MANAGEMENT, L.P.
CENTRAL INDEX KEY: 0001346824
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40551
FILM NUMBER: 231108953
BUSINESS ADDRESS:
STREET 1: 200 BERKELEY STREET, 18TH FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
BUSINESS PHONE: 617-778-2500
MAIL ADDRESS:
STREET 1: 200 BERKELEY STREET, 18TH FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
FORMER NAME:
FORMER CONFORMED NAME: RA CAPITAL MANAGEMENT, LLC
DATE OF NAME CHANGE: 20051213
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: RA Capital Nexus Fund II, L.P.
CENTRAL INDEX KEY: 0001825376
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40551
FILM NUMBER: 231108951
BUSINESS ADDRESS:
STREET 1: 200 BERKELEY STREET, 18TH FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
BUSINESS PHONE: 617-778-2500
MAIL ADDRESS:
STREET 1: 200 BERKELEY STREET, 18TH FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Kolchinsky Peter
CENTRAL INDEX KEY: 0001384859
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40551
FILM NUMBER: 231108950
MAIL ADDRESS:
STREET 1: 200 BERKELEY STREET
STREET 2: 18TH FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Shah Rajeev M.
CENTRAL INDEX KEY: 0001619841
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40551
FILM NUMBER: 231108949
MAIL ADDRESS:
STREET 1: 200 BERKELEY STREET
STREET 2: 18TH FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
ISSUER:
COMPANY DATA:
COMPANY CONFORMED NAME: Acumen Pharmaceuticals, Inc.
CENTRAL INDEX KEY: 0001576885
STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
IRS NUMBER: 364108129
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
BUSINESS ADDRESS:
STREET 1: 427 PARK ST.
CITY: CHARLOTTESVILLE
STATE: VA
ZIP: 22902
BUSINESS PHONE: 925-368-8508
MAIL ADDRESS:
STREET 1: 427 PARK ST.
CITY: CHARLOTTESVILLE
STATE: VA
ZIP: 22902
4
1
tm2322012-1_4seq1.xml
OWNERSHIP DOCUMENT
X0508
4
2023-07-21
0
0001576885
Acumen Pharmaceuticals, Inc.
ABOS
0001346824
RA CAPITAL MANAGEMENT, L.P.
200 BERKELEY STREET 18TH FLOOR
BOSTON
MA
02116
1
0
1
0
0001315082
RA Capital Healthcare Fund LP
C/O RA CAPITAL MANAGEMENT, L.P.
200 BERKELEY STREET, 18TH FLOOR
BOSTON
MA
02116
1
0
1
0
0001825376
RA Capital Nexus Fund II, L.P.
C/O RA CAPITAL MANAGEMENT, L.P.
200 BERKELEY STREET, 18TH FLOOR
BOSTON
MA
02116
1
0
0
0
0001384859
Kolchinsky Peter
C/O RA CAPITAL MANAGEMENT, L.P.
200 BERKELEY STREET, 18TH FLOOR
BOSTON
MA
02116
1
0
1
0
0001619841
Shah Rajeev M.
C/O RA CAPITAL MANAGEMENT, L.P.
200 BERKELEY STREET, 18TH FLOOR
BOSTON
MA
02116
1
0
1
0
0
Common Stock
2023-07-21
4
P
0
5161290
7.75
A
13043179
I
See Footnotes
Common Stock
1300034
I
See Footnotes
Common Stock
588850
I
See Footnotes
Acquired from the Issuer pursuant to the public offering described in the Issuer's Prospectus filed with the Securities and Exchange Commission on July 20, 2023.
Held directly by RA Capital Healthcare Fund, L.P. (the "Fund").
RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund II, L.P. (the "Nexus Fund II") and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, Dr. Kolchinsky, and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.
Held directly by the Nexus Fund II.
Held directly by the Account.
Ms. Stoppel, a Principal of the Adviser, serves on the Issuer's board of directors.
/s/ Peter Kolchinsky, Manager of RA Capital Management, L.P.
2023-07-25
/s/ Peter Kolchinsky, Manager of RA Capital Healthcare Fund GP, LLC, the General Partner of RA Capital Healthcare Fund, L.P.
2023-07-25
/s/ Peter Kolchinsky, Manager of RA Capital Nexus Fund II GP, LLC, the General Partner of RA Capital Nexus Fund II, L.P.
2023-07-25
/s/ Peter Kolchinsky, individually
2023-07-25
/s/ Rajeev Shah, individually
2023-07-25