Walker Karen Marie
SEC insider (Form 3/4/5 filer). CIK 0002008556. Chief Technology Officer at Kyverna Therapeutics, Inc. (KYTX). 4 reported Form 4/5 transactions since Sep 2024; latest on Dec 15, 2025. Located in EMERYVILLE, CA.
Companies Walker Karen Marie has filed insider reports for
- Kyverna Therapeutics, Inc. (KYTX): Officer, Chief Technology Officer
Walker Karen Marie
CIK: 0002008556
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)1 (25.0%)
Position reduction
Option Exercises (M)1 (25.0%)
Derivative conversions
Awards (A)2 (50.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
KYTX
Kyverna Therapeutics, Inc.
Officer
Discretionary Trading P&L
Holdings
Transaction History (4 total)
- Dec 15, 2025KYTX
Kyverna Therapeutics, Inc.
ExerciseDirect24K shares at avg. $4.83$116K - Dec 15, 2025KYTX
Kyverna Therapeutics, Inc.
SaleDirect24K shares at avg. $12.20$293K - Apr 11, 2025KYTX
Kyverna Therapeutics, Inc.
AwardDirect13K shares- - Apr 11, 2024KYTX
Kyverna Therapeutics, Inc.
AwardDirectStock Option (right to buy)
80K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Dec 15, 2025 | KYTX Kyverna Therapeutics, Inc. | Exercise | 23,998 | $4.83 | $115,910 | Direct |
| Dec 15, 2025 | KYTX Kyverna Therapeutics, Inc. | Sale | 23,998 | $12.20 | $292,776 | Direct |
| Apr 11, 2025 | KYTX Kyverna Therapeutics, Inc. | Award | 13,000 | - | - | Direct |
| Apr 11, 2024 | KYTX Kyverna Therapeutics, Inc. | Award Stock Option (right to buy) | 80,000 | - | - | Direct |
1-4 of 4 transactions