Filing Details

Accession Number:
0001104659-23-083857
Form Type:
4
Zero Holdings:
No
Publication Time:
2023-07-25 16:30:41
Reporting Period:
2023-07-21
Accepted Time:
2023-07-25 16:30:41
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1576885 Acumen Pharmaceuticals Inc. ABOS () DE
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1315082 Ra Capital Healthcare Fund Lp C/O Ra Capital Management, L.p.
200 Berkeley Street, 18Th Floor
Boston MA 02116
Yes No Yes No
1346824 Ra Capital Management, L.p. 200 Berkeley Street 18Th Floor
Boston MA 02116
Yes No Yes No
1384859 Peter Kolchinsky C/O Ra Capital Management, L.p.
200 Berkeley Street, 18Th Floor
Boston MA 02116
Yes No Yes No
1619841 M. Rajeev Shah C/O Ra Capital Management, L.p.
200 Berkeley Street, 18Th Floor
Boston MA 02116
Yes No Yes No
1825376 Ra Capital Nexus Fund Ii, L.p. C/O Ra Capital Management, L.p.
200 Berkeley Street, 18Th Floor
Boston MA 02116
Yes No No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Acquisiton 2023-07-21 5,161,290 $7.75 13,043,179 No 4 P Indirect See Footnotes
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 P Indirect See Footnotes
Reported Non-Derivative Holdings
Sec. Name Remaning Holdings Nature of Ownership Explanation
Common Stock 1,300,034 Indirect See Footnotes
Common Stock 588,850 Indirect See Footnotes
Footnotes
  1. 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.
  2. Held directly by RA Capital Healthcare Fund, L.P. (the "Fund").
  3. 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.
  4. Held directly by the Nexus Fund II.
  5. Held directly by the Account.