Penumbra, Inc.
DE ˙ DB ˙ US70975L1070
275,60 € ↑0,40 (0,15%)
2026-06-04
DEL PRIS
SecurityDE:0P8 / Penumbra, Inc.
InstitutionBlair William & Co/il
Latest Disclosed Ownership1,806 shares
Latest Disclosed Value $ 593,036
Blair William & Co/il reports 78.27% decrease in ownership of 0P8 / Penumbra, Inc.

On May 8, 2026 - Blair William & Co/il filed a 13F-HR form disclosing ownership of 1,806 shares of Penumbra, Inc. (DE:0P8) valued at $510,556 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 8,310 shares of Penumbra, Inc.. This represents a change in shares of -78.27% during the quarter. The current value of the position is $497,734 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)
2026-05-08 2026-03-31 13F PENUMBRA COM 70975L107 1,806 -6,504 -78.27 593 -77.04 0.0017
2026-02-17 2025-12-31 13F PENUMBRA COM 70975L107 8,310 202 2.49 2,584 25.82 0.0069
2025-11-12 2025-09-30 13F PENUMBRA COM 70975L107 8,108 -2,456 -23.25 2,054 -24.27 0.0055
2025-07-24 2025-06-30 13F PENUMBRA COM 70975L107 10,564 4,042 61.97 2,711 55.45 0.0075
2025-05-09 2025-03-31 13F PENUMBRA COM 70975L107 6,522 2,782 74.39 1,744 96.40 0.0053
2025-02-12 2024-12-31 13F PENUMBRA COM 70975L107 3,740 -5,140 -57.88 888 -48.52 0.0026
2024-11-12 2024-09-30 13F PENUMBRA COM 70975L107 8,880 -8,776 -49.71 1,725 -45.70 0.0051
2024-08-12 2024-06-30 13F PENUMBRA COM 70975L107 17,656 982 5.89 3,178 -14.62 0.0098
2024-05-09 2024-03-31 13F PENUMBRA COM 70975L107 16,674 3,257 24.28 3,721 10.28 0.0117
2024-02-12 2023-12-31 13F PENUMBRA COM 70975L107 13,417 4,119 44.30 3,375 50.02 0.0115
2023-11-09 2023-09-30 13F PENUMBRA COM 70975L107 9,298 20 0.22 2,249 -29.54 0.0086
2023-08-11 2023-06-30 13F PENUMBRA COM 70975L107 9,278 -1,008 -9.80 3,192 11.37 0.0117
2023-05-12 2023-03-31 13F PENUMBRA COM 70975L107 10,286 -2,457 -19.28 2,867 1.13 0.0115
2023-02-10 2022-12-31 13F PENUMBRA COM 70975L107 12,743 512 4.19 2,835 22.21 0.0123
2022-11-09 2022-09-30 13F PENUMBRA COM 70975L107 12,231 1,451 13.46 2,319 72.80 0.0107
2022-08-10 2022-06-30 13F PENUMBRA COM 70975L107 10,780 -353 -3.17 1,342 -45.73 0.0060
2022-05-13 2022-03-31 13F PENUMBRA COM 70975L107 11,133 -932 -7.72 2,473 -28.67 0.0087
2022-02-14 2021-12-31 13F PENUMBRA COM 70975L107 12,065 1,973 19.55 3,467 28.88 0.0109
2021-11-12 2021-09-30 13F PENUMBRA COM 70975L107 10,092 213 2.16 2,690 -0.63 0.0092
2021-08-12 2021-06-30 13F PENUMBRA COM 70975L107 9,879 -92 -0.92 2,707 0.33 0.0094
2021-05-13 2021-03-31 13F PENUMBRA COM 70975L107 9,971 -2,416 -19.50 2,698 24.45 0.0102
2021-02-09 2020-12-31 13F PENUMBRA COM 70975L107 12,387 1,101 9.76 2,168 -1.19 0.0079
2020-11-06 2020-09-30 13F PENUMBRA COM 70975L107 11,286 3 0.03 2,194 8.72 0.0093
2020-08-12 2020-06-30 13F PENUMBRA COM 70975L107 11,283 -80 -0.70 2,018 10.09 0.0096
2020-05-11 2020-03-31 13F PENUMBRA COM 70975L107 11,363 642 5.99 1,833 4.09 0.0115
2020-02-13 2019-12-31 13F PENUMBRA COM 70975L107 10,721 4,717 78.56 1,761 118.22 0.0091
2019-11-12 2019-09-30 13F PENUMBRA COM 70975L107 6,004 4,480 293.96 807 230.74 0.0046
2019-08-13 2019-06-30 13F PENUMBRA COM 70975L107 1,524 1,524 244 0.0014
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.