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$TRAX All transactions

First Tracks Biotherapeutics, Inc.

▼ SELL

$ Value

$65.0M

Shares

4,705,575

Price

$14

Filed

Apr 22

Insider

Name

EcoR1 Capital, LLC

Title

CIK

0001587114

Roles

10% Owner

Transaction Details

Transaction Date

2026-04-20

Code

S

Table

Non-Derivative

Ownership

Indirect

Equity Swap

No

Shares After

3,174,519

Footnotes

The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified L.P. ("Qualified Fund"). EcoR1 is the investment adviser and general partner of private funds, including Qualified Fund (collectively, the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself, Mr. Nodelman and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of such securities except to the extent of their pecuniary interests therein. | The Funds sold these share in a private placement described in the Form 8K filed by the Issuer on April 20, 2026. | Qualified Fund sold 4,420,064 of the securities in this transaction. | After this transaction, Qualified Fund holds 2,981,908 shares of the Issuer's Common Stock.

Filing Info

Accession No.

0000935836-26-000208

Form Type

4

Issuer CIK

0002091349

EcoR1 Capital, LLC's History

Date Ticker Type Value
2026-04-20 TRAX $65.0M
2025-06-26 ZYME X $509
2025-06-26 ZYME F $521
2025-06-26 ZYME X $0
2025-05-19 ZYME $70K
2025-05-15 ITOS $26.4M
2025-05-15 ZYME $566K
2025-05-14 ITOS $12.3M
2025-05-06 PRTA $15.2M
2025-05-05 PRTA $7.9M

Other Insiders at TRAX (90d)

Insider Bought Sold Last
FENTON DENNIS M 2026-04-20
ANAPTYSBIO, INC 2026-04-20
Orwin John A 2026-04-20
Schmid John P. 2026-04-20
Marquet Magda 2026-04-20
Faga Daniel
President, CEO
2026-04-20
Jain Rita 2026-04-20
Lizzul Paul F.
Chief Medical Officer
2026-04-20
Ware J. Anthony 2026-04-20
Tamboli Ajim
Chief Financial Officer
2026-04-23