Jason R. Nunn - 09 Oct 2025 Form 4 Insider Report for Zenas BioPharma, Inc. (ZBIO)

Role
Director
Signature
/s/ Sasha Keough, attorney-in-fact for Jason R. Nunn
Issuer symbol
ZBIO
Transactions as of
09 Oct 2025
Net transactions value
+$1,200,002
Form type
4
Filing time
14 Oct 2025, 17:16:29 UTC
Previous filing
27 Jun 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Nunn Jason Raleigh Director 985 OLD EAGLE SCHOOL ROAD, SUITE 511, WAYNE /s/ Sasha Keough, attorney-in-fact for Jason R. Nunn 14 Oct 2025 0001444319

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ZBIO Common Stock Purchase $1,200,002 +63,158 +5.7% $19.00 1,173,395 09 Oct 2025 See Note 2 F1, F2
holding ZBIO Common Stock 1,946,564 09 Oct 2025 See Note 3 F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Acquired from the Issuer on October 9, 2025 pursuant to a Securities Purchase Agreement dated October 7, 2025.
F2 The reported securities are held directly by SR One Capital Opportunities Fund I, LP. SR One Capital Opportunities Partners I, LP is the general partner of SR One Capital Opportunities Fund I, LP. The Reporting Person is a partner of SR One Capital Management, LP, an entity affiliated with SR One Capital Opportunities Fund I, LP, and a limited partner of SR One Capital Opportunities Partners I, LP. The Reporting Person disclaims beneficial ownership of these securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.
F3 The reported securities are held directly by SR One Capital Fund II Aggregator, LP. SR One Capital Partners II, LP is the general partner of SR One Capital Fund II Aggregator, LP. The Reporting Person is a partner of SR One Capital Management, LP, an entity affiliated with SR One Capital Fund II Aggregator, LP, and a limited partner of SR One Capital Partners II, LP. The Reporting Person disclaims beneficial ownership of these securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.