Penumbra, Inc.
US ˙ NYSE ˙ US70975L1070

SecurityPEN / Penumbra, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership325,843 shares
Latest Disclosed Value $ 106,999,890
Dimensional Fund Advisors Lp reports 0.32% increase in ownership of PEN / Penumbra, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 325,843 shares of Penumbra, Inc. (US:PEN) valued at $106,997,066 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 324,789 shares of Penumbra, Inc.. This represents a change in shares of 0.32% during the quarter. The current value of the position is $104,442,457 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F PENUMBRA COM 70975L107 325,843 1,054 0.32 107,000 5.95 0.0222
2026-02-12 2025-12-31 13F PENUMBRA COM 70975L107 324,789 28,205 9.51 100,986 34.42 0.0212
2025-11-12 2025-09-30 13F PENUMBRA COM 70975L107 296,584 86,335 41.06 75,126 39.23 0.0161
2025-08-12 2025-06-30 13F PENUMBRA COM 70975L107 210,249 -100,512 -32.34 53,958 -35.07 0.0125
2025-05-13 2025-03-31 13F PENUMBRA COM 70975L107 310,761 -13,203 -4.08 83,097 8.01 0.0207
2025-02-13 2024-12-31 13F PENUMBRA COM 70975L107 323,964 60,764 23.09 76,937 50.45 0.0185
2024-11-07 2024-09-30 13F PENUMBRA COM 70975L107 263,200 6,142 2.39 51,139 10.55 0.0124
2024-08-09 2024-06-30 13F PENUMBRA COM 70975L107 257,058 126,392 96.73 46,257 58.62 0.0121
2024-05-10 2024-03-31 13F PENUMBRA COM 70975L107 130,666 11,838 9.96 29,162 -2.45 0.0079
2024-02-07 2023-12-31 13F PENUMBRA COM 70975L107 118,828 8,122 7.34 29,893 11.60 0.0087
2023-11-09 2023-09-30 13F PENUMBRA COM 70975L107 110,706 -2,934 -2.58 26,786 -31.49 0.0088
2023-08-09 2023-06-30 13F PENUMBRA COM 70975L107 113,640 1,809 1.62 39,097 25.45 0.0125
2023-05-12 2023-03-31 13F PENUMBRA COM 70975L107 111,831 1,682 1.53 31,165 129,754.17 0.0105
2023-02-09 2022-12-31 13F PENUMBRA COM 70975L107 110,149 2,613 2.43 25 -99.88 0.0072
2022-11-10 2022-09-30 13F PENUMBRA COM 70975L107 107,536 -28,225 -20.79 20,392 20.61 0.0078
2022-08-12 2022-06-30 13F PENUMBRA COM 70975L107 135,761 45,151 49.83 16,908 -15.98 0.0061
2022-05-13 2022-03-31 13F PENUMBRA COM 70975L107 90,610 2,717 3.09 20,123 -20.31 0.0062
2022-02-09 2021-12-31 13F PENUMBRA COM 70975L107 87,893 2,216 2.59 25,252 10.59 0.0076
2021-11-12 2021-09-30 13F PENUMBRA COM 70975L107 85,677 1,711 2.04 22,833 -0.79 0.0074
2021-08-12 2021-06-30 13F PENUMBRA COM 70975L107 83,966 1,110 1.34 23,014 2.69 0.0073
2021-05-14 2021-03-31 13F PENUMBRA COM 70975L107 82,856 3,010 3.77 22,411 60.36 0.0074
2021-03-08 2020-12-31 13F/A-2 PENUMBRA COM 70975L107 79,846 2,249 2.90 13,975 -7.34 0.0050
2021-02-11 2020-12-31 13F PENUMBRA COM 70975L107 79,846 2,249 13,975 5,047.0272
2020-11-12 2020-09-30 13F PENUMBRA COM 70975L107 77,597 2,328 3.09 15,082 12.10 0.0064
2020-08-13 2020-06-30 13F PENUMBRA COM 70975L107 75,269 4,481 6.33 13,454 17.80 0.0059
2020-05-14 2020-03-31 13F PENUMBRA COM 70975L107 70,788 -7,739 -9.86 11,421 -11.46 0.0059
2020-02-14 2019-12-31 13F PENUMBRA COM 70975L107 78,527 -1,637 -2.04 12,899 19.66 0.0047
2019-11-12 2019-09-30 13F PENUMBRA COM 70975L107 80,164 4,219 5.56 10,780 -11.28 0.0042
2019-08-13 2019-06-30 13F PENUMBRA COM 70975L107 75,945 1,549 2.08 12,151 11.10 0.0047
2019-08-12 2019-03-31 13F/A-2 PENUMBRA COM 70975L107 74,396 14,858 24.96 10,937 50.30 0.0044
2019-05-10 2019-03-31 13F PENUMBRA COM 70975L107 74,396 14,858 10,937
2019-02-26 2018-12-31 13F/A-1 PENUMBRA COM 70975L107 59,538 9,614 19.26 7,277 -2.62 0.0033
2019-02-13 2018-12-31 13F PENUMBRA COM 70975L107 59,538 9,614 7,277
2018-11-13 2018-09-30 13F PENUMBRA COM 70975L107 49,924 6,575 15.17 7,473 24.76 0.0028
2018-08-10 2018-06-30 13F PENUMBRA COM 70975L107 43,349 43,349 5,990 0.0024
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.