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633 hedge funds and large institutions have $8.1B invested in Arm in 2025 Q1 according to their latest regulatory filings, with 107 funds opening new positions, 256 increasing their positions, 174 reducing their positions, and 99 closing their positions.

New
Increased
Maintained
Reduced
Closed

47% more repeat investments, than reductions

Existing positions increased: 256 | Existing positions reduced: 174

1.1% more ownership

Funds ownership: 6.12%7.22% (+1.1%)

8% more first-time investments, than exits

New positions opened: 107 | Existing positions closed: 99

6% more call options, than puts

Call options by funds: $3.62B | Put options by funds: $3.41B

2% more capital invested

Capital invested by funds: $7.92B → $8.1B (+$177M)

1% less funds holding

Funds holding: 638633 (-5)

14% less funds holding in top 10

Funds holding in top 10: 1412 (-2)

Holders
633
Holders Change
-5
Holders Change %
-0.78%
% of All Funds
8.49%
Holding in Top 10
12
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-14.29%
% of All Funds
0.16%
New
107
Increased
256
Reduced
174
Closed
99
Calls
$3.62B
Puts
$3.41B
Net Calls
+$209M
Net Calls Change
-$162M
Name Holding Trade Value Shares
Change
Change in
Stake
LPL Financial
51
LPL Financial
California
$27M +$2.64M +18,929 +8%
Simplex Trading
52
Simplex Trading
Illinois
$27M +$9.35M +67,022 +36%
IMC Chicago
53
IMC Chicago
Illinois
$27M -$24.1M -172,476 -41%
MAM
54
Mark Asset Management
New York
$25.8M +$5.58M +39,996 +20%
Parallax Volatility Advisers
55
Parallax Volatility Advisers
California
$25.7M -$61.6M -441,595 -65%
VA
56
Vident Advisory
Georgia
$25.2M +$15.4M +110,290 +88%
Deutsche Bank
57
Deutsche Bank
Germany
$24.9M +$3.94M +28,244 +14%
JP Morgan Chase
58
JP Morgan Chase
New York
$24.6M +$13.4M +96,294 +88%
Citadel Advisors
59
Citadel Advisors
Florida
$24.5M -$28.5M -204,089 -47%
MCM
60
Marsico Capital Management
Colorado
$22.2M -$1.24M -8,903 -4%
VOYA Investment Management
61
VOYA Investment Management
Georgia
$21.9M -$1.23M -8,846 -4%
BT
62
Banque Transatlantique
France
$21.4M -$13.7M -98,194 -33%
Royal Bank of Canada
63
Royal Bank of Canada
Ontario, Canada
$20.5M +$4.58M +32,876 +21%
NC
64
NZS Capital
Colorado
$20.4M +$7.78M +55,797 +41%
LIP
65
Liontrust Investment Partners
United Kingdom
$20.4M +$10.3M +73,952 +63%
Ameriprise
66
Ameriprise
Minnesota
$20.2M +$939K +6,736 +4%
JFG
67
Jefferies Financial Group
New York
$19.6M +$25.5M +183,212 New
Verition Fund Management
68
Verition Fund Management
Connecticut
$19.5M -$57.4M -411,880 -69%
ACM
69
Altimeter Capital Management
Massachusetts
$18.8M +$24.5M +175,600 New
Swedbank
70
Swedbank
Sweden
$18.7M +$24.4M +174,800 New
ProShare Advisors
71
ProShare Advisors
Maryland
$18.7M +$3.6M +25,845 +17%
AllianceBernstein
72
AllianceBernstein
Tennessee
$17.5M +$7.1M +50,889 +45%
Legal & General Group
73
Legal & General Group
United Kingdom
$17.2M -$2.47M -17,721 -10%
DSAM
74
Dock Street Asset Management
Florida
$16.2M +$14.3M +102,310 +209%
Bank of Montreal
75
Bank of Montreal
Ontario, Canada
$15.6M +$13.8M +99,132 +211%