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PEN · Penumbra Inc

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$324.13 -2.72 (-0.83%) At close · Aug 20
Market Cap
$12.87B
Shares
39.39M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 448
Total Value: $11,017,202,505
Total Shares: 34,892,507

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 448 13F filers · Δ vs Mar 31, 2026
Top Holder
12.3%
Sep 2023 → Jun 2026 · range 12.3% – 16.9%
−0.3 pts
Top 5
30.8%
Sep 2023 → Jun 2026 · range 30.6% – 54.5%
+0.3 pts
Top 10
45.3%
Sep 2023 → Jun 2026 · range 43.0% – 65.7%
+2.4 pts
HHI
333
Sep 2023 → Jun 2026 · range 315 – 688
Broadly held+18

Quarterly Activity

vs Mar 31, 2026
New
46
Increased
147
Decreased
181
Sold Out
82
Unchanged
74
Holder count: -36
Institutional value: -2.4%
Shares held: +1.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 466
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1321732 CUSIP 70975L107 13F (30d) 429 filings 401 filers Visit website