Insider · CIK 0001815638
Thane Wettig
Files at KYNB (FIBROGEN INC). First filing Mar 25, 2025, latest May 19, 2026.
In brief
Thane Wettig files SEC Form 4 as CEO and director at KYNB (FIBROGEN INC). Since Mar 25, 2025, Thane Wettig has reported 4 open-market buys worth $124k and 0 open-market sells worth $0, the latest filed on May 19, 2026.
A track record needs three past buys with six months of prices behind them; Thane Wettig has 2, so none is measured yet.
The newest scored trade: bought $20k of KYNB on May 14, 2026, filed May 19, 2026, scored 36 (weak). In the last 12 months: 3 buys worth $73k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
KYNB: FIBROGEN 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 |
|---|---|---|---|---|---|
| 36Weak | KYNBbuy FIBROGEN INC | $20k 2,800 shares | +11% | +36% from low-44% from high | |
| 36Weak | KYNBbuy FIBROGEN INC | $20k 2,800 shares | +11% | +36% from low-44% from high | |
| 42Moderate | KYNBbuy FIBROGEN INC | $34k 3,700 shares | +17% | +76% from low-53% from high | |
| 46Moderate | FIBROGEN INC | $51k 145,000 shares | +36% | - |
Transactions
Every row this insider has filed, 20 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 6, 2026 | KYNB FIBROGEN INC | FTax withholding Common Stock | -209 | $8.55 | $1,787 | 26,796 | 34 d ago |
| Jun 6, 2026 | KYNB FIBROGEN INC | FTax withholding Common Stock | -198 | $6.71 | $1,329 | 27,005 | Jun 9, 2026 |
| May 14, 2026 | KYNB FIBROGEN INC | POpen-market purchase Common Stock | +2,800 | $7.09 | $20k | 27,203 | May 19, 2026 |
| May 14, 2026 | KYNB FIBROGEN INC | POpen-market purchase Common Stock | -2,800 | $7.09 | $20k | 27,203 | May 18, 2026 |
| Mar 6, 2026 | KYNB FIBROGEN INC | FTax withholding Common Stock | -277 | $6.84 | $1,895 | 24,403 | Mar 10, 2026 |
| Feb 3, 2026 | KYNB FIBROGEN INC | AGrant or award Stock Option (Right to Buy)derivative | +60,000 | $0.00 | $0 | 60,000 | Feb 5, 2026 |
| Dec 6, 2025 | KYNB FIBROGEN INC | FTax withholding Common Stock | -259 | $8.42 | $2,181 | 24,680 | Dec 9, 2025 |
| Nov 13, 2025 | KYNB FIBROGEN INC | POpen-market purchase Common Stock | +1,000 | $9.18 | $9,180 | 22,239 | Nov 17, 2025 |
| Nov 17, 2025 | KYNB FIBROGEN INC | POpen-market purchase Common Stock | +2,700 | $9.10 | $25k | 24,939 | Nov 17, 2025 |
| Jun 6, 2025 | KYNB FIBROGEN INC | FTax withholding Common Stock | -246 | $7.83 | $1,927 | 21,487 | Sep 9, 2025 |
| Sep 6, 2025 | KYNB FIBROGEN INC | FTax withholding Common Stock | -248 | $12.10 | $3,001 | 21,239 | Sep 9, 2025 |
| Mar 24, 2025 | KYNB FIBROGEN INC | POpen-market purchase Common Stock | +145,000 | $0.35 | $51k | 543,329 | Mar 25, 2025 |
| Mar 6, 2025 | KYNB FIBROGEN INC | FTax withholding Common Stock | -22,038 | $0.39 | $8,595 | 397,915 | Mar 7, 2025 |
| Mar 6, 2025 | KYNB FIBROGEN INC | AGrant or award Common Stock | +781 | $0.00 | $0 | 398,696 | Mar 7, 2025 |
| Mar 6, 2025 | KYNB FIBROGEN INC | FTax withholding Common Stock | -367 | $0.39 | $143 | 398,329 | Mar 7, 2025 |
| Jan 9, 2025 | KYNB FIBROGEN INC | AGrant or award Stock Option (Right to Buy)derivative | +1,300,000 | $0.00 | $0 | 1,300,000 | Jan 10, 2025 |
| Dec 6, 2024 | KYNB FIBROGEN INC | FTax withholding Common Stock | -2,363 | $0.34 | $808 | 419,953 | Dec 9, 2024 |
| Dec 22, 2023 | KYNB FIBROGEN INC | FTax withholding Common Stock | -819 | $0.76 | $622 | 281,422 | Dec 26, 2023 |
| Dec 6, 2023 | KYNB FIBROGEN INC | FTax withholding Common Stock | -1,680 | $0.58 | $974 | 282,241 | Dec 11, 2023 |
| Nov 1, 2023 | KYNB FIBROGEN INC | FTax withholding Common Stock | -21,841 | $0.55 | $12k | 283,921 | Nov 3, 2023 |
Questions about Thane Wettig
Answered from the filings on this page, as of the latest one.
Is Thane Wettig buying or selling?
In the last 12 months Thane Wettig reported 3 open-market buys worth $73k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $20k of KYNB on May 14, 2026. Grants, option exercises and tax withholding are not counted.
How did Thane Wettig's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Thane Wettig has 2.
Where does Thane Wettig file Form 4?
Thane Wettig has filed Form 4 at KYNB (FIBROGEN INC) as CEO. 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.