PEN short interest
Penumbra Inc. · Healthcare · Medical - Devices · settlement date 2026-09-30
| Shares short | 2,245,649 |
|---|---|
| Change vs prior report | 439,707 (+24.4%) |
| Change over six months | -7.9% |
| Days to cover | 4.75 (sector: 3.78) |
| Average daily volume | 472,607 |
| Rank in Healthcare | #445 of 922 by days to cover |
PEN short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 2,245,649 | +24.4% | 4.75 | 472,607 |
| 2026-09-15 | 1,805,942 | +4.3% | 7.18 | 251,678 |
| 2026-08-31 | 1,731,493 | -4.8% | 6.02 | 287,615 |
| 2026-08-14 | 1,818,794 | -0.9% | 6.99 | 260,263 |
| 2026-07-31 | 1,836,046 | -13.6% | 4.19 | 438,245 |
| 2026-07-15 | 2,123,757 | +4.2% | 6.30 | 337,187 |
| 2026-06-30 | 2,037,620 | +2.5% | 5.10 | 399,599 |
| 2026-06-15 | 1,986,919 | +3.7% | 4.61 | 431,134 |
| 2026-05-29 | 1,916,131 | -0.0% | 4.16 | 460,934 |
| 2026-05-15 | 1,916,276 | +1.0% | 4.65 | 411,914 |
| 2026-04-30 | 1,896,966 | -5.5% | 3.28 | 578,714 |
| 2026-04-15 | 2,007,168 | -17.7% | 4.24 | 473,304 |
| 2026-03-31 | 2,437,639 | +18.3% | 3.72 | 655,384 |
| 2026-03-13 | 2,061,336 | +10.4% | 3.11 | 662,106 |
| 2026-02-27 | 1,866,429 | +0.2% | 3.00 | 622,723 |
| 2026-02-13 | 1,863,136 | +16.3% | 1.91 | 973,747 |
| 2026-01-30 | 1,601,731 | -7.0% | 1.00 | 1,765,973 |
| 2026-01-15 | 1,722,051 | +0.7% | 1.07 | 1,609,684 |
| 2025-12-31 | 1,709,674 | +6.3% | 4.32 | 395,786 |
| 2025-12-15 | 1,607,603 | +6.1% | 3.16 | 509,315 |
| 2025-11-28 | 1,514,769 | -10.2% | 3.05 | 495,947 |
| 2025-11-14 | 1,687,371 | -7.2% | 2.95 | 572,612 |
| 2025-10-31 | 1,819,291 | +5.0% | 4.61 | 394,744 |
| 2025-10-15 | 1,733,518 | +7.5% | 5.32 | 325,549 |
| 2025-09-30 | 1,612,966 | -18.5% | 3.85 | 418,495 |
import finzdata as yf
yf.Ticker("PEN").short_interest # every report since 2017
yf.Client().short_interest(["PEN"], start="2018-01-01")Healthcare short interest · PEN price history · Who owns PEN · All short interest