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$ZBIO All transactions

Zenas BioPharma, Inc.

▲ BUY
8 / 10

Conviction

$ Value

$770K

Shares

36,928

Price

$21

Filed

Oct 9

Why this score? (8/10)
  • Open market buy (+3)
  • Trade value >= $250K (+1)
  • Director (+1)
  • Cluster: 3 insiders buying (+2)
  • Not a 10b5-1 plan (+1)

Insider

Name

MOULDER LEON O JR

Title

See Remarks

CIK

0001228865

Roles

Director Officer

Transaction Details

Transaction Date

2025-10-07

Code

P

Table

Non-Derivative

Ownership

Indirect

Equity Swap

No

Shares After

36,928

Footnotes

On October 7, 2025, the Leon O. Moulder, Jr. Revocable Trust U/A dtd 9/9/2008 (the "Trust"), of which the reporting person is a Trustee, entered into a Securities Purchase Agreement, dated as of October 7, 2025, by and among the Issuer and the investors party thereto, pursuant to which the Trust acquired 36,928 shares of common stock at a purchase price of $20.85 per share. | The reporting person is a Trustee of the Trust and may be deemed to have voting and dispositive power over the shares held by the Trust. The reporting person is the Issuer's chief executive officer and Chairman of its board of directors. The reporting person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein. | The reporting person is the Managing Member of Tellus BioVentures LLC ("Tellus") and may be deemed to have voting and dispositive power over the shares held by Tellus. The reporting person is the Issuer's chief executive officer and Chairman of its board of directors. The reporting person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Filing Info

Accession No.

0001104659-25-098413

Form Type

4

Issuer CIK

0001953926

MOULDER LEON O JR's History

Date Ticker Type Value
2026-03-31 ZBIO $657K
2026-03-30 ZBIO $365K
2026-01-09 ZBIO $331K
2026-01-08 ZBIO $489K
2026-01-07 ZBIO $819K
2025-10-07 ZBIO $770K
2025-06-18 ZLAB A $0
2025-06-10 ZBIO A $0

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