0001636282-26-000069.txt : 20260529 0001636282-26-000069.hdr.sgml : 20260529 20260529175806 ACCESSION NUMBER: 0001636282-26-000069 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20260527 FILED AS OF DATE: 20260529 DATE AS OF CHANGE: 20260529 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Fairmount Healthcare Fund II L.P. CENTRAL INDEX KEY: 0001769651 ORGANIZATION NAME: STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37722 FILM NUMBER: 261046474 BUSINESS ADDRESS: STREET 1: 200 BARR HARBOR DRIVE STREET 2: SUITE 400 CITY: WEST CONSHOHOCKEN STATE: PA ZIP: 19428 BUSINESS PHONE: (267) 760-4066 MAIL ADDRESS: STREET 1: 200 BARR HARBOR DRIVE STREET 2: SUITE 400 CITY: WEST CONSHOHOCKEN STATE: PA ZIP: 19428 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Kiselak Tomas CENTRAL INDEX KEY: 0001830177 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37722 FILM NUMBER: 261046475 MAIL ADDRESS: STREET 1: 200 BARR HARBOR DRIVE STREET 2: SUITE 400 CITY: WEST CONSHOHOCKEN STATE: PA ZIP: 19428 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Fairmount Funds Management LLC CENTRAL INDEX KEY: 0001802528 ORGANIZATION NAME: STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37722 FILM NUMBER: 261046476 BUSINESS ADDRESS: STREET 1: 200 BARR HARBOR DRIVE STREET 2: SUITE 400 CITY: WEST CONSHOHOCKEN STATE: PA ZIP: 19428 BUSINESS PHONE: 267-262-5300 MAIL ADDRESS: STREET 1: 200 BARR HARBOR DRIVE STREET 2: SUITE 400 CITY: WEST CONSHOHOCKEN STATE: PA ZIP: 19428 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Spyre Therapeutics, Inc. CENTRAL INDEX KEY: 0001636282 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences EIN: 464312787 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 221 CRESCENT STREET STREET 2: BUILDING 23, SUITE 105 CITY: WALTHAM STATE: MA ZIP: 02453 BUSINESS PHONE: 6176515940 MAIL ADDRESS: STREET 1: 221 CRESCENT STREET STREET 2: BUILDING 23, SUITE 105 CITY: WALTHAM STATE: MA ZIP: 02453 FORMER COMPANY: FORMER CONFORMED NAME: Aeglea BioTherapeutics, Inc. DATE OF NAME CHANGE: 20150311 4 1 wk-form4_1780091883.xml FORM 4 X0609 4 2026-05-27 0 0001636282 Spyre Therapeutics, Inc. SYRE 0001802528 Fairmount Funds Management LLC false 200 BARR HARBOR DRIVE SUITE 400 WEST CONSHOHOCKEN PA 19428 1 0 0 0 0001830177 Kiselak Tomas false 200 BARR HARBOR DRIVE SUITE 400 WEST CONSHOHOCKEN PA 19428 1 0 0 0 0001769651 Fairmount Healthcare Fund II L.P. false 200 BARR HARBOR DRIVE SUITE 400 WEST CONSHOHOCKEN PA 19428 1 0 0 0 0 Stock Option (Right to Buy) 72.51 2026-05-27 4 A 0 8026 0 A 2036-05-27 Common Stock 8026 8026 I By Tomas Kiselak This option represents a right to purchase 8,026 shares of the Issuer's common stock, which will vest and become fully exercisable upon the earlier of May 27, 2027 or the date of the Issuer's 2027 annual meeting of stockholders, subject to Tomas Kiselak's continuous service to the Issuer through the applicable vesting date. Under Mr. Kiselak's arrangement with Fairmount Funds Management LLC (the "Adviser"), Mr. Kiselak holds the option for one or more investment vehicles managed by the Adviser (each, a "Fairmount Fund"). Mr. Kiselak is obligated to turn over to the Adviser any net cash or stock received from the option for the benefit of such Fairmount Fund. Mr. Kiselak therefore disclaims beneficial ownership of the option and underlying common stock, except to the extent of his pecuniary interest therein. The Adviser and Fairmount Healthcare Fund II L.P. may each be deemed a director by deputization of Issuer by virtue of the fact that Tomas Kiselak serves on the board of directors of the Issuer and is also a Managing Member of the Adviser. /s/ Tomas Kiselak, Managing Member of Fairmount Healthcare Fund II L.P. 2026-05-29 /s/ Tomas Kiselak 2026-05-29 /s/ Tomas Kiselak, Managing Member of Fairmount Funds Management LLC 2026-05-29