Baker Bros. Advisors LP Insider Trading Activity
Baker Bros. Advisors LP, an institutional filer, recorded 72 transactions over the last 12 months across 3 companies totaling $356.1M.
Activity concentrated in KOD with 54 filings. The largest single transaction was a purchase of KYMR for $158.1M on Dec 11, 2025.
Performance Scorecard
Forward stock performance after each transaction by Baker Bros. Advisors LP. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | +16.6% | -2493.0% | 88% | 84 |
| 90 days | +45.2% | -1833.4% | 90% | 84 |
| 120 days | +52.5% | -1783.4% | 93% | 84 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
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Showing the 50 most recent of 136 disclosed trades.
| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Sep 29, 2026 | KOD | Buy | 10,381 | $84.24 | $875K | +0.1% | Director | |
Sep 29, 2026 | KOD | Buy | 619 | $84.24 | $52K | +0.0% | Director | |
Sep 29, 2026 | KOD | Buy | 20,031 | $85.40 | $1.7M | +0.1% | Director | |
Sep 29, 2026 | KOD | Buy | 1,416 | $85.89 | $122K | +0.0% | Director | |
Sep 29, 2026 | KOD | Buy | 1,195 | $85.40 | $102K | +0.1% | Director | |
Sep 29, 2026 | KOD | Buy | 84 | $85.89 | $7K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 4,696 | $73.08 | $343K | +0.3% | Director | |
Sep 28, 2026 | KOD | Buy | 32,261 | $75.52 | $2.4M | +0.2% | Director | |
Sep 28, 2026 | KOD | Buy | 278,978 | $72.39 | $20.2M | +1.5% | Director | |
Sep 28, 2026 | KOD | Buy | 1,924 | $75.52 | $145K | +0.1% | Director | |
Sep 28, 2026 | KOD | Buy | 63,539 | $86.94 | $5.5M | +0.3% | Director | |
Sep 28, 2026 | KOD | Buy | 3,681 | $76.34 | $281K | +0.2% | Director | |
Sep 28, 2026 | KOD | Buy | 61,700 | $76.34 | $4.7M | +0.3% | Director | |
Sep 28, 2026 | KOD | Buy | 2,884 | $77.43 | $223K | +0.2% | Director | |
Sep 28, 2026 | KOD | Buy | 3,114 | $86.72 | $270K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 76,723 | $73.97 | $5.7M | +0.4% | Director | |
Sep 28, 2026 | KOD | Buy | 186 | $86.72 | $16K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 49,771 | $78.57 | $3.9M | +0.3% | Director | |
Sep 28, 2026 | KOD | Buy | 2,666 | $61.63 | $164K | +0.2% | Director | |
Sep 28, 2026 | KOD | Buy | 957 | $86.81 | $83K | +0.1% | Director | |
Sep 28, 2026 | KOD | Buy | 16,036 | $86.81 | $1.4M | +0.1% | Director | |
Sep 28, 2026 | KOD | Buy | 3,790 | $86.94 | $330K | +0.2% | Director | |
Sep 28, 2026 | KOD | Buy | 154 | $68.37 | $11K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 4,485 | $87.51 | $392K | +0.3% | Director | |
Sep 28, 2026 | KOD | Buy | 75,176 | $87.51 | $6.6M | +0.4% | Director | |
Sep 28, 2026 | KOD | Buy | 5,880 | $88.57 | $521K | +0.4% | Director | |
Sep 28, 2026 | KOD | Buy | 98,561 | $88.57 | $8.7M | +0.5% | Director | |
Sep 28, 2026 | KOD | Buy | 6,428 | $88.65 | $570K | +0.4% | Director | |
Sep 28, 2026 | KOD | Buy | 107,772 | $88.65 | $9.6M | +0.5% | Director | |
Sep 28, 2026 | KOD | Buy | 4,932 | $89.60 | $442K | +0.3% | Director | |
Sep 28, 2026 | KOD | Buy | 4,577 | $73.97 | $339K | +0.3% | Director | |
Sep 28, 2026 | KOD | Buy | 196,608 | $89.86 | $17.7M | +1.0% | Director | |
Sep 28, 2026 | KOD | Buy | 2,969 | $78.57 | $233K | +0.2% | Director | |
Sep 28, 2026 | KOD | Buy | 11,729 | $89.86 | $1.1M | +0.7% | Director | |
Sep 28, 2026 | KOD | Buy | 82,673 | $89.60 | $7.4M | +0.4% | Director | |
Sep 28, 2026 | KOD | Buy | 48,350 | $77.43 | $3.7M | +0.3% | Director | |
Sep 28, 2026 | KOD | Buy | 856 | $61.21 | $52K | +0.1% | Director | |
Sep 28, 2026 | KOD | Buy | 14,344 | $61.21 | $878K | +0.1% | Director | |
Sep 28, 2026 | KOD | Buy | 78,726 | $73.08 | $5.8M | +0.4% | Director | |
Sep 28, 2026 | KOD | Buy | 44,690 | $61.63 | $2.8M | +0.2% | Director | |
Sep 28, 2026 | KOD | Buy | 243 | $62.96 | $15K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 4,067 | $62.96 | $256K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 479 | $64.43 | $31K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 8,021 | $64.43 | $517K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 321 | $67.10 | $22K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 5,382 | $67.10 | $361K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 39,066 | $68.96 | $2.7M | +0.2% | Director | |
Sep 28, 2026 | KOD | Buy | 2,585 | $68.37 | $177K | +0.0% | Director | |
Sep 28, 2026 | KOD | Buy | 2,331 | $68.96 | $161K | +0.1% | Director | |
Sep 28, 2026 | KOD | Buy | 1,056 | $71.48 | $75K | +0.1% | Director |
Top Companies Traded
Other insiders at Kodiak Sciences Inc.
1 other tracked filer at KOD.