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$ZBIO All transactions

Zenas BioPharma, Inc.

A

$ Value

$0

Shares

18,500

Price

$0

Filed

Jun 12

Insider

Name

Fairmount Funds Management LLC

Title

CIK

0001802528

Roles

Director

Transaction Details

Transaction Date

2025-06-10

Code

A

Table

Derivative

Ownership

Indirect

Equity Swap

No

Shares After

18,500

Footnotes

The option vests as to 100% of the underlying shares of common stock on June 10, 2026, the first anniversary of the vesting commencement date, subject to continued service. | Under Mr. Kiselak's arrangement with Fairmount, Mr. Kiselak holds the option for one or more investment vehicles managed by Fairmount Funds Management LLC ("Fairmount" and each such investment vehicle, a "Fairmount Fund"). Mr. Kiselak is obligated to turn over to Fairmount 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. Fairmount disclaims beneficial ownership of any of the reported securities, except to the extent of its pecuniary interest therein.

Filing Info

Accession No.

0001104659-25-058927

Form Type

4

Issuer CIK

0001953926

Fairmount Funds Management LLC's History

Date Ticker Type Value
2026-03-31 COGT C
2026-03-31 COGT $242.6M
2026-03-31 COGT C $0
2026-03-31 ZBIO $3.0M
2026-03-23 DMRA A $0
2026-01-22 APGE $133.5M
2026-01-22 COGT $127.4M
2025-12-04 CBIO $18.2M
2025-12-04 CBIO $1.8M
2025-10-23 VRDN $10.0M

Other Insiders at ZBIO (90d)

Insider Bought Sold Last
Fairmount Funds Management LLC $3.0M 2026-03-31
Lu Hongbo $1.6M 2026-03-31
MOULDER LEON O JR
Chief Executive Officer
$1.0M 2026-03-31