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Zenas BioPharma, Inc.

ZBIO Net buying

CIK 0001953926 #2025 in the set updated 17 Sep 2026

Bought (12 mo)

$29.05M

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

Sold (12 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

+$29.05M

+$29.05M against sales at will

By person

10 insiders · 25 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Fairmount Funds Management LLC entity

Director

$9.01M (2)

—

+$9.01M

2,359,025

3.62%

$39.82M

+24.6%

Lu Hongbo

Director

$7.15M (4)

—

+$7.15M

422,968

0.6490%

$7.14M

+668.3%

MOULDER LEON O JR

See Remarks

$6.53M (10)

—

+$6.53M

520,083

0.7980%

$8.78M

+1,815%

SR ONE CAPITAL MANAGEMENT, LLC entity

10% owner

$2.40M (2)

—

+$2.40M

1,917,895

2.94%

$32.37M

+7.1%

ENRIGHT PATRICK G

Director

$2.25M (2)

—

+$2.25M

1,844,659

2.83%

$31.14M

+6.8%

Nunn Jason Raleigh

Director

$1.20M (1)

—

+$1.20M

1,173,395

1.80%

$19.81M

+5.7%

Allen Patricia L

Director

$499.75K (4)

—

+$499.75K

19,860

0.0305%

$335.24K

—

Xiao Ting

Director

—

47,000

0.0721%

$793.36K

+27.0%

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 27

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 3

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 2,566

History held since 16 Sep 2024