Penumbra, Inc.
US ˙ NYSE ˙ US70975L1070

SecurityPEN / Penumbra, Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership3,178 shares
Latest Disclosed Value $ 1,043,552
Stifel Financial Corp reports 4.59% decrease in ownership of PEN / Penumbra, Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 3,178 shares of Penumbra, Inc. (US:PEN) valued at $1,043,560 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,331 shares of Penumbra, Inc.. This represents a change in shares of -4.59% during the quarter. The current value of the position is $1,018,962 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)
2026-05-12 2026-03-31 13F PENUMBRA COM 70975L107 3,178 -153 -4.59 1,044 0.77 0.0002
2026-02-13 2025-12-31 13F PENUMBRA COM 70975L107 3,331 466 16.27 1,036 42.76 0.0009
2025-11-12 2025-09-30 13F PENUMBRA COM 70975L107 2,865 -66 -2.25 726 -3.59 0.0007
2025-08-14 2025-06-30 13F PENUMBRA COM 70975L107 2,931 -78 -2.59 752 -6.47 0.0007
2025-05-14 2025-03-31 13F PENUMBRA COM 70975L107 3,009 4 0.13 805 12.76 0.0009
2025-02-13 2024-12-31 13F PENUMBRA COM 70975L107 3,005 23 0.77 714 23.14 0.0007
2024-11-14 2024-09-30 13F PENUMBRA COM 70975L107 2,982 -399 -11.80 579 -4.77 0.0006
2024-08-13 2024-06-30 13F PENUMBRA COM 70975L107 3,381 3,381 609 0.0007
2024-02-12 2023-12-31 13F PENUMBRA COM 70975L107 0 -1,749 -100.00 0 -100.00
2023-11-13 2023-09-30 13F PENUMBRA COM 70975L107 1,749 453 34.95 423 -4.94 0.0006
2023-08-14 2023-06-30 13F PENUMBRA COM 70975L107 1,296 152 13.29 446 39.94 0.0006
2023-05-12 2023-03-31 13F PENUMBRA COM 70975L107 1,144 1,144 319 0.0005
2018-02-14 2017-12-31 13F PENUMBRA COM 70975L107 0 -13,513 -100.00 0 -100.00
2017-11-13 2017-09-30 13F PENUMBRA COM 70975L107 13,513 -2,713 -16.72 1,222 -14.00 0.0042
2017-08-14 2017-06-30 13F PENUMBRA COM 70975L107 16,226 340 2.14 1,421 7.41 0.0053
2017-05-10 2017-03-31 13F PENUMBRA COM 70975L107 15,886 15,886 1,323 0.0051
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.