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Hudson Bay Capital Management LP

Position in PEN — Penumbra Inc

CIK 1393825 STAMFORD, CT

Position in PEN

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$64,140,823
-$50,472,784 QoQ
Shares Held
203,138
-41.8% QoQ
Ownership
0.516%
of shares outstanding
% of Portfolio
0.34%
of 13F equity value
Holder Rank
#37
of 446 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in PEN Over Time

Shares Held

Position Value (USD)

Derivatives in PEN

reported options exposure · as of Jun 30, 2026
CallValue
$0
CallShares
0
PutValue
$9,567,225
PutShares
30,300

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Medical Devices

Healthcare · as of Jun 30, 2026

Hudson Bay Capital Management LP holds $434,636,902 across 12 Medical Devices names. PEN ranks #3 (14.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 PEN
Penumbra Inc
This page
203,138 $64,140,823

All Filings in PEN

Export CSV
3 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $9,567,225 30,300
2026-06-30 $64,140,823 203,138
2026-03-31 $114,613,607 349,038