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Penumbra

482 hedge funds and large institutions have $11.1B invested in Penumbra in 2026 Q1 according to their latest regulatory filings, with 131 funds opening new positions, 149 increasing their positions, 141 reducing their positions, and 79 closing their positions.

New
Increased
Maintained
Reduced
Closed

300% more funds holding in top 10

Funds holding in top 10: 624 (+18)

66% more first-time investments, than exits

New positions opened: 131 | Existing positions closed: 79

10% more funds holding

Funds holding: 438482 (+44)

6% more repeat investments, than reductions

Existing positions increased: 149 | Existing positions reduced: 141

3% less capital invested

Capital invested by funds: $11.4B → $11.1B (-$328M)

7.7% less ownership

Funds ownership: 93.95%86.25% (-7.7%)

42% less call options, than puts

Call options by funds: $68.9M | Put options by funds: $118M

Holders
482
Holders Change
+44
Holders Change %
+10.05%
% of All Funds
5.94%
Holding in Top 10
24
Holding in Top 10 Change
+18
Holding in Top 10 Change %
+300%
% of All Funds
0.3%
New
131
Increased
149
Reduced
141
Closed
79
Calls
$68.9M
Puts
$118M
Net Calls
-$49.3M
Net Calls Change
-$87.8M
Name Holding Trade Value Shares
Change
Change in
Stake
Dimensional Fund Advisors
26
Dimensional Fund Advisors
Texas
$107M +$357K +1,054 +0.3%
Charles Schwab
27
Charles Schwab
California
$106M +$5.05M +14,916 +5%
Northern Trust
28
Northern Trust
Illinois
$105M +$3.45M +10,194 +3%
CAM
29
Congress Asset Management
Massachusetts
$104M -$22M -65,013 -17%
Neuberger Berman Group
30
Neuberger Berman Group
New York
$99.7M +$101M +298,578 +5,921%
LP
31
LMR Partners
United Kingdom
$97.1M +$100M +295,708 New
Bank of America
32
Bank of America
North Carolina
$85.3M -$15.7M -46,436 -15%
MF
33
Magnetar Financial
Illinois
$82.6M +$85.1M +251,433 New
VFT
34
Vanguard Fiduciary Trust
Pennsylvania
$81.2M +$83.7M +247,235 New
Bank of New York Mellon
35
Bank of New York Mellon
New York
$81M -$721K -2,129 -0.9%
WP
36
Woodline Partners
California
$79.3M +$13.1M +38,615 +19%
AllianceBernstein
37
AllianceBernstein
Tennessee
$70.4M +$23M +68,016 +43%
Bank of Nova Scotia
38
Bank of Nova Scotia
Ontario, Canada
$69.6M +$71.2M +210,402 +14,838%
SFM
39
Soros Fund Management
New York
$66.8M +$68.9M +203,434 New
Citadel Advisors
40
Citadel Advisors
Florida
$66.6M -$267M -787,550 -80%
D.E. Shaw & Co
41
D.E. Shaw & Co
New York
$66.3M +$65.8M +194,426 +2,584%
Thrivent Financial for Lutherans
42
Thrivent Financial for Lutherans
Minnesota
$61.8M -$36.1M -106,603 -36%
CAU
43
Caxton Associates (UK)
$60.6M +$62.5M +184,663 New
DAM
44
Decagon Asset Management
United Kingdom
$55M +$56.7M +167,588 New
Janus Henderson Group
45
Janus Henderson Group
United Kingdom
$54.8M -$105M -308,844 -65%
KC
46
Kryger Capital
United Kingdom
$50.5M +$52.1M +153,848 New
Squarepoint
47
Squarepoint
New York
$48.5M +$50M +147,806 New
PHS
48
PFM Health Sciences
California
$45.9M -$1.83M -5,392 -4%
CLGM
49
Capitolis Liquid Global Markets
New York
$45.8M +$47.2M +139,398 New
Adage Capital Partners
50
Adage Capital Partners
Massachusetts
$44.3M -$5.08M -15,000 -10%