Karen Marie Walker
CIK: 0002008556
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Kyverna Therapeutics, Inc.
Discretionary Trading P&L
Holdings
Transaction History (4 total)
- Dec 15, 2025KYTX
Kyverna Therapeutics, Inc.
Exercise(M)Direct24K shares at avg. $4.83$116K - Dec 15, 2025KYTX
Kyverna Therapeutics, Inc.
Sale(S)Direct24K shares at avg. $12.20$293K - Apr 11, 2025KYTX
Kyverna Therapeutics, Inc.
Award(A)Direct13K shares- - Apr 11, 2024KYTX
Kyverna Therapeutics, Inc.
Award(A)DirectStock Option (right to buy)
80K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Dec 15, 2025 | KYTX Kyverna Therapeutics, Inc. | Exercise(M) | 23,998 | $4.83 | $115,910 | Direct |
| Dec 15, 2025 | KYTX Kyverna Therapeutics, Inc. | Sale(S) | 23,998 | $12.20 | $292,776 | Direct |
| Apr 11, 2025 | KYTX Kyverna Therapeutics, Inc. | Award(A) | 13,000 | - | - | Direct |
| Apr 11, 2024 | KYTX Kyverna Therapeutics, Inc. | Award(A) Stock Option (right to buy) | 80,000 | - | - | Direct |
1-4 of 4 transactions
About Walker Karen Marie
Walker Karen Marie (SEC CIK 0002008556) files insider reports with the SEC as Chief Technology Officer of Kyverna Therapeutics, Inc. (KYTX).
Signal8 holds 2 ownership filings by Walker Karen Marie, all Form 4s, filed between Apr 15, 2025 and Dec 17, 2025. Those filings report 4 transactions, from Apr 11, 2024 to Dec 15, 2025. Signal8's Form 4 history starts in Sep 2024.
The business address on Walker Karen Marie's filings is in EMERYVILLE, CA.
Recent filings by Walker Karen Marie
Other insiders filing for Kyverna Therapeutics, Inc. (KYTX)
- CLARK IAN T, Director
- Cohen Fred E, Director
- SEIDENBERG BETH C, Director
- Shaw Christi, Executive Chairperson
- Aktar Mert, Director
- Martini Gregory S., Chief Financial Officer