Adam Elsesser is CEO & President at Penumbra Inc (PEN). They have made 58 open-market trades across 1 company since 2016, most recently 2026-05-19.
CIK 0001651323
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 58 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PEN | 683,042 | $220.3M |
Shares reported on the most recent Form 4, priced at the 2026-05-21 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PEN | SELL · 10b5-1 | 2025-09-03 | 2025-09-04 | $269.60 | $8.2M | -6.4% | -9.1% | +1.7% |
| PEN | SELL · 10b5-1 | 2025-08-20 | 2025-08-22 | $254.52 | $8.1M | +6.0% | -3.9% | +6.0% |
| PEN | SELL · 10b5-1 | 2025-08-06 | 2025-08-08 | $238.20 | $7.6M | +6.2% | +18.7% | +9.9% |
| PEN | SELL · 10b5-1 | 2025-07-23 | 2025-07-25 | $233.07 | $6.6M | +2.9% | +13.3% | +8.7% |
| PEN | SELL · 10b5-1 | 2025-07-09 | 2025-07-11 | $243.58 | $7.4M | -1.2% | +1.4% | +10.6% |
| PEN | SELL · 10b5-1 | 2025-06-25 | 2025-06-27 | $253.40 | $8.1M | -4.9% | -10.2% | -2.8% |
| PEN | SELL · 10b5-1 | 2025-06-11 | 2025-06-13 | $253.82 | $7.5M | -2.4% | -7.9% | +6.4% |
| PEN | SELL · 10b5-1 | 2025-05-28 | 2025-05-30 | $268.19 | $8.0M | -5.0% | -3.8% | +1.9% |
| PEN | SELL · 10b5-1 | 2025-05-14 | 2025-05-16 | $298.25 | $9.8M | -4.8% | -6.5% | -9.3% |
| PEN | SELL · 10b5-1 | 2025-05-07 | 2025-05-09 | $289.82 | $7.3M | -9.9% | -14.5% | -19.8% |
| PEN | SELL · 10b5-1 | 2025-04-16 | 2025-04-18 | $274.25 | $8.0M | +5.7% | +1.6% | -16.9% |
| PEN | SELL · 10b5-1 | 2025-04-02 | 2025-04-04 | $272.48 | $8.1M | +10.2% | +16.3% | -0.4% |
| PEN | SELL · 10b5-1 | 2025-03-19 | 2025-03-21 | $276.17 | $8.9M | -2.7% | -5.0% | -9.9% |
| PEN | SELL · 10b5-1 | 2025-03-05 | 2025-03-07 | $283.58 | $34.9M | +2.7% | -3.1% | -5.0% |
| PEN | SELL · 10b5-1 | 2024-12-20 | 2024-12-23 | $243.02 | $7.1M | -1.9% | +14.1% | +18.4% |
| PEN | SELL · 10b5-1 | 2024-11-20 | 2024-11-22 | $237.38 | $6.6M | -1.9% | -2.7% | +22.6% |
| PEN | SELL · 10b5-1 | 2024-10-21 | 2024-10-23 | $204.54 | $4.2M | +12.0% | +19.5% | +30.9% |
| PEN | SELL · 10b5-1 | 2024-09-20 | 2024-09-24 | $197.71 | $5.9M | +1.4% | +7.6% | +25.3% |
| PEN | SELL · 10b5-1 | 2024-08-22 | 2024-08-26 | $203.07 | $9.8M | +1.6% | -6.8% | +22.0% |
| PEN | SELL · 10b5-1 | 2024-07-17 | 2024-07-19 | $202.52 | $3.0M | -12.5% | +0.3% | +5.9% |
| PEN | SELL · 10b5-1 | 2024-05-20 | 2024-05-22 | $200.98 | $6.0M | -3.8% | -10.0% | -3.2% |
| PEN | SELL | 2023-10-11 | 2023-10-13 | $215.40 | $4.0M | +0.1% | +5.2% | +30.1% |
| PEN | SELL | 2023-09-11 | 2023-09-13 | $298.88 | $5.5M | -11.7% | -29.8% | -18.0% |
| PEN | SELL · 10b5-1 | 2023-08-11 | 2023-08-14 | $247.21 | $4.7M | -2.6% | +9.3% | -18.3% |
| PEN | SELL · 10b5-1 | 2023-07-11 | 2023-07-13 | $322.98 | $6.2M | -5.1% | -19.6% | -32.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.