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First Tracks Biotherapeutics, Inc.

TRAX Net selling

CIK 0002091349 #2236 in the set updated 17 Sep 2026

Bought (120 mo)

$0.00

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

Sold (120 mo)

$66.76M

$0.00 on a plan · $1.76M straight out of an exercise

Sold at will

$65.00M

1 of 2 sales

Net

−$66.76M

−$65.00M against sales at will

By person

8 insiders · 2 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

EcoR1 Capital, LLC entity

10% owner

—

$65.00M (1)

−$65.00M

3,174,519

8.88%

$142.14M

—

Ware J. Anthony

Director

—

$1.76M (1) scheduled

−$1.76M

15,660

0.0438%

$701.20K

+62.6%

Schmid John P.

Director

—

37,652

0.1054%

$1.69M

+19.1%

Jain Rita

Director

—

19,194

0.0537%

$859.44K

+61.8%

Orwin John A

Director

—

16,695

0.0467%

$747.54K

+56.5%

Marquet Magda

Director

—

15,960

0.0447%

$714.63K

+60.7%

FENTON DENNIS M

Director

—

10,995

0.0308%

$492.32K

+121.5%

ANAPTYSBIO, INC entity

10% owner

—

0.0000%

$0.00

−100.0%

Individual transactions

Insider

Date

Role

Action

Price

Amount

EcoR1 Capital, LLC

20 Apr 2026

10% owner

Sell indirect

4,705,575

$13.81

$65.00M

Show all 2 transactions →

What was left out

Form 4 filings counted 34

Amendments (4/A) skipped 6

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 1

Sales at will 1

Transactions with no price 0

Shares from compensation/vesting 76,845

History held since 22 Apr 2026