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Zenas BioPharma, Inc.

ZBIO Net buying

CIK 0001953926 #2025 in the set updated 17 Sep 2026

Bought (120 mo)

$113.10M

out of their own pocket, the only kind of buying there is

Sold (120 mo)

$0.00

$0.00 on a plan · $0.00 straight out of an exercise

Sold at will

$0.00

0 of 0 sales

Net

+$113.10M

+$113.10M against sales at will

By person

12 insiders · 45 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

SR ONE CAPITAL MANAGEMENT, LLC entity

10% owner

$40.40M (5)

—

+$40.40M

1,917,895

2.94%

$32.37M

—

Nunn Jason Raleigh

Director

$16.20M (3)

—

+$16.20M

1,173,395

1.80%

$19.81M

—

Enavate Sciences GP, LLC entity

10% owner

$15.00M (1)

—

+$15.00M

3,761,359

5.77%

$63.49M

—

Fairmount Funds Management LLC entity

Director

$14.11M (3)

—

+$14.11M

2,359,025

3.62%

$39.82M

+719.3%

ENRIGHT PATRICK G

Director

$9.73M (3)

—

+$9.73M

1,844,659

2.83%

$31.14M

—

Lu Hongbo

Director

$9.15M (6)

—

+$9.15M

422,968

0.6490%

$7.14M

—

MOULDER LEON O JR

See Remarks

$7.93M (19)

—

+$7.93M

520,083

0.7980%

$8.78M

—

Allen Patricia L

Director

$499.75K (4)

—

+$499.75K

19,860

0.0305%

$335.24K

—

Xiao Ting

Director

$77.60K (1)

—

+$77.60K

47,000

0.0721%

$793.36K

+27.0%

Wellington Biomedical Innovation Master Investors (Cayman) I L.P.

10% owner

—

801,624

1.23%

$13.53M

—

Fox Jennifer A.

See Remarks

—

1,592

0.0024%

$26.87K

—

Farmer Joseph L

See Remarks

—

974

0.0015%

$16.44K

—

Individual transactions

Nothing of that kind in this period.

What was left out

Form 4 filings counted 62

Amendments (4/A) skipped 3

Filings about a different issuer 0

Unreadable filings 0

Joint filings 7

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 0

Sales at will 0

Transactions with no price 0

Shares from compensation/vesting 12,593,890

History held since 16 Sep 2024