Baker Bros. Advisors LP bought $60M of KOD
director, owner at Kodiak Sciences Inc.. 2,608,696 shares at an average of $23.00, traded Dec 18, 2025, filed Dec 19, 2025.
Score components
- +15RoleDirector
- +25Trade size$60.0M at market
- +10Relative to holdingsHoldings up 194%
- 0Price contextNear the top of the 52-week range
- 0ClusterNo other insider buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +4.4%, 3m -14.4%, 6m +39.0%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001193125-25-326820, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Dec 18, 2025 | POpen-market purchase Common Stockindirect: See Footnotes | +217,428 | $23.00 | $5.0M | 1,560,414 | Dec 19, 2025 |
| Dec 18, 2025 | POpen-market purchase Common Stockindirect: See Footnotes | +2,391,268 | $23.00 | $55M | 18,358,772 | Dec 19, 2025 |
Related signals
Other insiders at Kodiak Sciences Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 50Moderate | KODbuy Kodiak Sciences Inc. | Baker Bros. Advisors LP director, owner | $59M 807,840 shares | +52% | |
| 46Moderate | KODbuy Kodiak Sciences Inc. | Baker Bros. Advisors LP director, owner | $35M 418,323 shares | +26% | |
| 46Moderate | KODbuy Kodiak Sciences Inc. | Baker Bros. Advisors LP director, owner | $63M 715,592 shares | +44% | |
| 17Weak | Kodiak Sciences Inc. | John A. Borgeson Chief Financial Officer | $1.0M 30,000 shares | -12% | |
| 17Weak | Kodiak Sciences Inc. | John A. Borgeson Chief Financial Officer | $1.2M 30,000 shares | -14% | |
| 0Weak | Kodiak Sciences Inc. | John A. Borgeson See Remarks | $2,640 723 shares | -0% |
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.