Comparable stake leader
VANGUARD CAPITAL MANAGEMENT LLC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001321732.
Comparable stake leader
VANGUARD CAPITAL MANAGEMENT LLC
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
19 May 2026
Ownership snapshot
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Quick read
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.1%
|
$653,662,845
1,990,629 shares
|
$0 | 31 Mar 2026 |
| FMR LLC |
13D/G
13F
Company
|
4.7%
|
$567,989,692
1,826,862 shares
|
-$1,017,695,485 | 30 Jan 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13D/G
13F
T. Rowe Price Associates, Inc. · Company
|
3.3%
|
$379,427,649
1,265,687 shares
|
$0 | 31 Dec 2024 |
| Adam Elsesser |
3/4/5
CEO, Director
|
2.2%
|
$273,702,493
865,502 shares
|
-$8,307,409 | 19 May 2026 |
| Arani Bose |
3/4/5
Director
|
0.66%
|
$92,680,413
259,609 shares
|
-$12,070,705 | 13 Feb 2026 |
| Johanna Roberts |
3/4/5
EVP, Gen. Counsel & Secretary
|
0.17%
|
$22,827,481
67,298 shares
|
-$1,422,832 | 15 Mar 2026 |
| Lambert Shiu |
3/4/5
Chief Accounting Officer
|
0.1%
|
$13,440,121
39,623 shares
|
— | 15 Mar 2026 |
| Shruthi Narayan |
3/4/5
President
|
0.08%
|
$10,432,096
30,755 shares
|
— | 15 Mar 2026 |
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Net insider flow leans to selling over the last 12 months. Net value: -$23,587,254.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 2,532 | $0 | $865,296 | -$865,296 |
| 6-9 | 0 | 33,772 | $0 | $10,175,474 | -$10,175,474 |
| 9-12 | 0 | 48,616 | $0 | $12,546,485 | -$12,546,485 |
Reporting owners
Showing 1-14 of 14 reporting-owner rows connected to Penumbra Inc. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Adam Elsesser | CEO, Director | $273,702,493 | -$8,307,409 | -2.9% | Mixed | 19 May 2026 |
| James Robert Pray | President, International | $98,738,367 | Mixed | 01 Oct 2021 | ||
| Arani Bose | Director | $92,680,413 | -$12,070,705 | -12% | Mixed | 13 Feb 2026 |
| Lynn Rothman | EVP and Chief Business Officer | $32,376,804 | Mixed | 01 Oct 2021 | ||
| Johanna Roberts | EVP, Gen. Counsel & Secretary | $22,827,481 | -$1,422,832 | -5.9% | Mixed | 15 Mar 2026 |
| Lambert Shiu | Chief Accounting Officer | $13,440,121 | Mixed | 15 Mar 2026 | ||
| Shruthi Narayan | President | $10,432,096 | Mixed | 15 Mar 2026 | ||
| Maggie Yuen | Chief Financial Officer | $6,162,246 | -$1,332,474 | -18% | Mixed | 15 Mar 2026 |
| Harpreet Grewal | Director | $2,861,750 | -$259,470 | -8.3% | Filing P/S | 02 Apr 2026 |
| Don W. Kassing | Director | $2,686,726 | Mixed | 14 Feb 2025 | ||
| Janet Leeds | Director | $2,370,123 | Mixed | 13 Feb 2026 | ||
| Bridget O'Rourke | Director | $2,128,434 | Mixed | 13 Feb 2026 | ||
| Thomas C. Wilder | Director | $1,818,915 | -$194,364 | -9.7% | Mixed | 13 Feb 2026 |
| Surbhi Sarna | Director | $1,532,601 | Mixed | 13 Feb 2026 |
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Adam Elsesser | PEN | Common Stock | Gift | -10.1% | -77,000 | 683,042 | 19 May 2026 | By Trust | ||
| Harpreet Grewal | PEN | Common Stock | Sale | -1.13% | $32,822 | $328.22 | -100 | 8,719 | 02 Apr 2026 | Direct |
| Shruthi Narayan | PEN | Common Stock | Tax liability | -0.38% | -117 | 30,755 | 15 Mar 2026 | Direct | ||
| Johanna Roberts | PEN | Common Stock | Tax liability | -0.28% | -186 | 67,298 | 15 Mar 2026 | Direct | ||
| Maggie Yuen | PEN | Common Stock | Tax liability | -1.01% | -186 | 18,167 | 15 Mar 2026 | Direct | ||
| Lambert Shiu | PEN | Common Stock | Tax liability | -0.38% | -150 | 39,323 | 15 Mar 2026 | Direct | ||
| Maggie Yuen | PEN | Common Stock | Sale | -11.7% | $832,474 | $342.30 | -2,432 | 18,353 | 02 Mar 2026 | Direct |
| Johanna Roberts | PEN | Common Stock | Award | 4.06% | 2,630 | 67,484 | 17 Feb 2026 | Direct | ||
| Maggie Yuen | PEN | Common Stock | Award | 14.5% | 2,630 | 20,785 | 17 Feb 2026 | Direct | ||
| Lambert Shiu | PEN | Common Stock | Award | 6.19% | 2,300 | 39,473 | 17 Feb 2026 | Direct | ||
| Shruthi Narayan | PEN | Common Stock | Award | 9.31% | 2,630 | 30,872 | 17 Feb 2026 | Direct | ||
| Johanna Roberts | PEN | Common Stock | Tax liability | -0.74% | -482 | 64,854 | 15 Feb 2026 | Direct | ||
| Maggie Yuen | PEN | Common Stock | Tax liability | -2.58% | -481 | 18,155 | 15 Feb 2026 | Direct | ||
| Lambert Shiu | PEN | Common Stock | Tax liability | -1.1% | -412 | 37,173 | 15 Feb 2026 | Direct | ||
| Shruthi Narayan | PEN | Common Stock | Tax liability | -2.44% | -705 | 28,242 | 15 Feb 2026 | Direct | ||
| Harpreet Grewal | PEN | Common Stock | Award | 7.16% | 589 | 8,819 | 13 Feb 2026 | Direct | ||
| Arani Bose | PEN | Common Stock | Award | 105.6% | 589 | 1,147 | 13 Feb 2026 | Direct | ||
| Janet Leeds | PEN | Common Stock | Award | 9.74% | 589 | 6,639 | 13 Feb 2026 | Direct | ||
| Bridget O'Rourke | PEN | Common Stock | Award | 11% | 589 | 5,962 | 13 Feb 2026 | Direct | ||
| Surbhi Sarna | PEN | Common Stock | Award | 15.9% | 589 | 4,293 | 13 Feb 2026 | Direct | ||
| Thomas C. Wilder | PEN | Common Stock | Award | 589 | 589 | 13 Feb 2026 | Direct | |||
| Johanna Roberts | PEN | Common Stock | Award | 4.19% | 2,630 | 65,336 | 13 Feb 2026 | Direct | ||
| Maggie Yuen | PEN | Common Stock | Award | 16.4% | 2,630 | 18,636 | 13 Feb 2026 | Direct | ||
| Lambert Shiu | PEN | Common Stock | Award | 6.52% | 2,300 | 37,585 | 13 Feb 2026 | Direct | ||
| Shruthi Narayan | PEN | Common Stock | Award | 9.99% | 2,630 | 28,947 | 13 Feb 2026 | Direct | ||
| Shruthi Narayan | PEN | Common Stock | Tax liability | -1.08% | -286 | 26,317 | 15 Jan 2026 | Direct | ||
| Harpreet Grewal | PEN | Common Stock | Sale | -2.21% | $58,151 | $312.64 | -186 | 8,230 | 06 Jan 2026 | Direct |
| Thomas C. Wilder | PEN | Common Stock | Sale | -100% | $57,794 | $310.72 | -186 | 0 | 02 Jan 2026 | Direct |
| Maggie Yuen | PEN | Common Stock | Tax liability | -3.41% | -565 | 16,006 | 15 Dec 2025 | Direct | ||
| Lambert Shiu | PEN | Common Stock | Tax liability | -0.84% | -300 | 35,285 | 15 Dec 2025 | Direct | ||
| Johanna Roberts | PEN | Common Stock | Tax liability | -1.77% | -1,130 | 62,706 | 15 Dec 2025 | Direct | ||
| Arani Bose | PEN | Common Stock | Sale | -5.49% | $4,632,292 | $308.82 | -15,000 | 258,462 | 11 Dec 2025 | By LLC |
| Johanna Roberts | PEN | Common Stock | Sale | -0.47% | $90,039 | $300.13 | -300 | 63,836 | 05 Dec 2025 | Direct |
| Harpreet Grewal | PEN | Common Stock | Sale | -1.17% | $29,298 | $292.98 | -100 | 8,416 | 02 Dec 2025 | Direct |
| Johanna Roberts | PEN | Common Stock | Sale | -0.93% | $176,966 | $294.94 | -600 | 64,136 | 01 Dec 2025 | Direct |
| Arani Bose | PEN | Common Stock | Gift | -0.65% | -1,799 | 273,462 | 26 Nov 2025 | By LLC | ||
| Johanna Roberts | PEN | Common Stock | Sale | -2.71% | $540,108 | $300.06 | -1,800 | 64,736 | 25 Nov 2025 | Direct |
| Arani Bose | PEN | Common Stock | Sale | -2.65% | $2,251,425 | $300.19 | -7,500 | 275,261 | 25 Nov 2025 | By LLC |
| Arani Bose | PEN | Common Stock | Sale | -2.58% | $2,179,212 | $290.56 | -7,500 | 282,761 | 21 Nov 2025 | By LLC |
| Maggie Yuen | PEN | Common Stock | Award | 27.6% | 3,580 | 16,556 | 17 Nov 2025 | Direct | ||
| Lambert Shiu | PEN | Common Stock | Award | 11.2% | 3,580 | 35,565 | 17 Nov 2025 | Direct | ||
| Johanna Roberts | PEN | Common Stock | Award | 5.69% | 3,580 | 66,536 | 17 Nov 2025 | Direct | ||
| Maggie Yuen | PEN | Common Stock | Tax liability | -5.06% | -691 | 12,976 | 15 Nov 2025 | Direct | ||
| Shruthi Narayan | PEN | Common Stock | Tax liability | -1.33% | -358 | 26,603 | 15 Nov 2025 | Direct | ||
| Lambert Shiu | PEN | Common Stock | Tax liability | -2.59% | -852 | 31,985 | 15 Nov 2025 | Direct | ||
| Johanna Roberts | PEN | Common Stock | Tax liability | -1.1% | -701 | 62,956 | 15 Nov 2025 | Direct | ||
| Johanna Roberts | PEN | Common Stock | Sale | -0.93% | $160,189 | $266.98 | -600 | 63,657 | 10 Nov 2025 | Direct |
| Harpreet Grewal | PEN | Common Stock | Sale | -2.14% | $42,330 | $227.58 | -186 | 8,516 | 04 Nov 2025 | Direct |
| Shruthi Narayan | PEN | Common Stock | Tax liability | -4.58% | -1,294 | 26,961 | 15 Oct 2025 | Direct | ||
| Harpreet Grewal | PEN | Common Stock | Sale | -2.09% | $46,241 | $248.61 | -186 | 8,702 | 02 Oct 2025 | Direct |