0001415889-24-016256.txt : 20240610 0001415889-24-016256.hdr.sgml : 20240610 20240610172639 ACCESSION NUMBER: 0001415889-24-016256 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240610 FILED AS OF DATE: 20240610 DATE AS OF CHANGE: 20240610 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: RA Capital Healthcare Fund LP CENTRAL INDEX KEY: 0001315082 ORGANIZATION NAME: STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40551 FILM NUMBER: 241033868 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 ORGANIZATION NAME: STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40551 FILM NUMBER: 241033869 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 ORGANIZATION NAME: STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40551 FILM NUMBER: 241033867 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 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40551 FILM NUMBER: 241033866 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 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40551 FILM NUMBER: 241033865 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] ORGANIZATION NAME: 03 Life Sciences 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 form4-06102024_090635.xml X0508 4 2024-06-10 0001576885 Acumen Pharmaceuticals, Inc. ABOS 0001346824 RA CAPITAL MANAGEMENT, L.P. 200 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 true false true false 0001315082 RA Capital Healthcare Fund LP 200 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 1 0 1 0 0001825376 RA Capital Nexus Fund II, L.P. 200 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 1 0 1 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 Stock Option (Right to Buy) 2.62 2024-06-10 4 A 0 25000 0 A 2034-06-09 Common Stock 25000 25000 I See Footnotes The shares subject to the option will vest on the earlier of June 10, 2025 or the 2025 annual stockholder meeting, subject to Ms. Stoppel's continuous service through each such vesting date. 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, the Fund, the Nexus Fund II, Dr. Kolchinsky, and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Laura Stoppel is a Principal of the Adviser who serves on the Issuer's board of directors. Under Ms. Stoppel's arrangement with the Adviser, Ms. Stoppel holds the option for the benefit of the Fund and the Nexus Fund II. Ms. Stoppel is obligated to turn over to the Adviser any net cash or stock received upon exercise of the option, which will offset advisory fees owed by the Fund and the Nexus Fund II to the Adviser. The Reporting Persons therefore disclaim beneficial ownership of the option and underlying common stock. Laura Stoppel, a Principal of the Adviser, serves on the Issuer's board of directors. /s/ Peter Kolchinsky, Manager of RA Capital Management, L.P. 2024-06-10 /s/ Peter Kolchinsky, Manager of RA Capital Healthcare Fund GP, LLC, the General Partner of RA Capital Healthcare Fund, L.P. 2024-06-10 /s/ Peter Kolchinsky, Manager of RA Capital Nexus Fund II GP, LLC, the General Partner of RA Capital Nexus Fund II, L.P. 2024-06-10 /s/ Peter Kolchinsky, individually 2024-06-10 /s/ Rajeev Shah, individually 2024-06-10