Insider · CIK 0002008556
Karen Marie Walker
Files at KYTX (Kyverna Therapeutics, Inc.). First filing Dec 17, 2025, latest Dec 17, 2025.
In brief
Karen Marie Walker files SEC Form 4 as officer at KYTX (Kyverna Therapeutics, Inc.). Since Dec 17, 2025, Karen Marie Walker has reported 0 open-market buys worth $0 and 1 open-market sell worth $293k, the latest filed on Dec 17, 2025.
A track record needs three past buys with six months of prices behind them; Karen Marie Walker has 0, so none is measured yet.
The newest scored trade: sold $293k of KYTX on Dec 15, 2025, filed Dec 17, 2025, scored 14 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 1 sell worth $293k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
KYTX: Kyverna Therapeutics, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 14Weak | Kyverna Therapeutics, Inc. | $293k 23,998 shares | -51% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Apr 17, 2026 | KYTX KYVERNA THERAPEUTICS INC | 10,000 0.02% of outstanding | $95k | Apr 17, 2026 | $23k |
| Apr 14, 2026 | KYTX KYVERNA THERAPEUTICS INC | 2,459 0.00% of outstanding | $23k | Apr 14, 2026 | none |
| Dec 15, 2025 | KYTX KYVERNA THERAPEUTICS INC | 23,998 0.05% of outstanding | $211k | Dec 15, 2025 | none |
Transactions
Every row this insider has filed, 5 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Dec 15, 2025 | KYTX Kyverna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +23,998 | $4.83 | $116k | 46,634 | Dec 17, 2025 |
| Dec 15, 2025 | KYTX Kyverna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -23,998 | $12.20 | $293k | 22,636 | Dec 17, 2025 |
| Dec 15, 2025 | KYTX Kyverna Therapeutics, Inc. | MOption exercise Stock option (right to buy)derivative10b5-1 | -23,998 | $0.00 | $0 | 85,865 | Dec 17, 2025 |
| Apr 11, 2025 | KYTX Kyverna Therapeutics, Inc. | AGrant or award Common Stock | +13,000 | $0.00 | $0 | 22,636 | Apr 15, 2025 |
| Apr 11, 2024 | KYTX Kyverna Therapeutics, Inc. | AGrant or award Stock Option (right to buy)derivative | +80,000 | $0.00 | $0 | 80,000 | Apr 15, 2025 |
Questions about Karen Marie Walker
Answered from the filings on this page, as of the latest one.
Is Karen Marie Walker buying or selling?
In the last 12 months Karen Marie Walker reported 0 open-market buys worth $0 and 1 open-market sell worth $293k on SEC Form 4; the latest was sold $293k of KYTX on Dec 15, 2025. Grants, option exercises and tax withholding are not counted.
How did Karen Marie Walker's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Karen Marie Walker has 0.
Where does Karen Marie Walker file Form 4?
Karen Marie Walker has filed Form 4 at KYTX (Kyverna Therapeutics, Inc.) as Chief Technology Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.