RA CAPITAL MANAGEMENT, L.P. - 18 Dec 2025 Form 4 Insider Report for Vor Biopharma Inc. (VOR)

Role
Director, 10%+ Owner
Signature
/s/ Peter Kolchinsky, Manager of RA Capital Management, L.P.
Issuer symbol
VOR
Transactions as of
18 Dec 2025
Net transactions value
-$49,999,990
Form type
4
Filing time
19 Dec 2025, 18:58:03 UTC
Previous filing
15 Dec 2025
Next filing
07 Jan 2026
SEC
View on sec.gov

Reporting Owners (4)

Name Relationship Address Signature Signature date CIK
RA CAPITAL MANAGEMENT, L.P. Director, 10%+ Owner 200 BERKELEY STREET 18TH FLOOR, BOSTON /s/ Peter Kolchinsky, Manager of RA Capital Management, L.P. 19 Dec 2025 0001346824
RA Capital Healthcare Fund LP Director, 10%+ Owner 200 BERKELEY STREET, 18TH FLOOR, BOSTON /s/ Peter Kolchinsky, Manager of RA Capital Healthcare GP, LLC, the General Partner of RA Capital Healthcare Fund, L.P. 19 Dec 2025 0001315082
Kolchinsky Peter Director, 10%+ Owner C/O RA CAPITAL MANAGEMENT, L.P., 200 BERKELEY STREET, 18TH FLOOR, BOSTON /s/ Peter Kolchinsky, individually 19 Dec 2025 0001384859
Shah Rajeev M. Director, 10%+ Owner C/O RA CAPITAL MANAGEMENT, L.P., 200 BERKELEY STREET, 18TH FLOOR, BOSTON /s/ Rajeev Shah, individually 19 Dec 2025 0001619841

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VOR Common Stock Award $49,999,990 -4,625,346 -46% $10.81 5,404,998 18 Dec 2025 See footnotes F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction VOR Stock Option (Right to Buy) Award $0 +3,000 $0.000000 3,000 18 Dec 2025 Common Stock 3,000 $12.80 See Footnotes F1, F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"). 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. Each of the Adviser, the Adviser GP, the Fund, Dr. Kolchinsky and Mr. Shah disclaims beneficial ownership of any of the reported securities, except to the extent of its or his respective pecuniary interest therein.
F2 Held directly by the Fund.
F3 This option was granted to Dr. Andrew Levin pursuant to the Issuer's non-employee director compensation policy. The shares shall vest and become exercisable in a series of 36 successive equal monthly installments beginning on December 18, 2025, in each case subject to Dr. Levin's continued service as of each such date.
F4 Under Dr. Levin's arrangement with the Adviser, Dr. Levin holds the option for the benefit of the Fund. Dr. Levin 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 to the Adviser. The Reporting Persons therefore disclaim beneficial ownership of the option and underlying common stock.

Remarks:

Dr. Andrew Levin, a Partner and Managing Director of the Adviser, serves on the Issuer's board of directors.