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IonQ
IONQ

608 hedge funds and large institutions have $10.3B invested in IonQ in 2025 Q3 according to their latest regulatory filings, with 174 funds opening new positions, 288 increasing their positions, 87 reducing their positions, and 41 closing their positions.

New
Increased
Maintained
Reduced
Closed

324% more first-time investments, than exits

New positions opened: 174 | Existing positions closed: 41

231% more repeat investments, than reductions

Existing positions increased: 288 | Existing positions reduced: 87

81% more capital invested

Capital invested by funds: $5.7B → $10.3B (+$4.64B)

26% more funds holding

Funds holding: 482 → 608 (+126)

6.25% more ownership

Funds ownership: 50.69% → 56.94% (+6.2%)

0% more funds holding in top 10

Funds holding in top 10: 9 → 9 (0)

20% less call options, than puts

Call options by funds: $1.25B | Put options by funds: $1.56B

Holders
608
Holders Change
+126
Holders Change %
+26.14%
% of All Funds
7.98%
Holding in Top 10
9
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.12%
New
174
Increased
288
Reduced
87
Closed
41
Calls
$1.25B
Puts
$1.56B
Net Calls
-$313M
Net Calls Change
-$573M

Top Buyers

1
Morgan Stanley
Morgan Stanley
New York
+$285M
2
Vanguard Group
Vanguard Group
Pennsylvania
+$216M
3
BlackRock
BlackRock
New York
+$199M
4
Renaissance Technologies
Renaissance Technologies
New York
+$192M
5
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$83.3M

Top Sellers

1
CCM
Cerberus Capital Management
New York
-$108M
2
TI
Tidal Investments
Wisconsin
-$37.4M
3
ACI
Amazon.com Inc
Washington
-$36.7M
4
Amundi
Amundi
France
-$16.3M
5
UBS AM
UBS AM
Illinois
-$16.2M
Name Holding Trade Value Shares
Change 		Change in
Stake
SIC
601
SJS Investment Consulting
Ohio
$369 – – –
GA
602
Guerra Advisors
Florida
$246 +$188 +4 New
GCS
603
Gordian Capital (Singapore)
Singapore
$62 -$188K -4,000 -100%
SRCM
604
Signature Resources Capital Management
California
$62 -$4.66K -99 -99%
PWA
605
Principia Wealth Advisory
Texas
$62 +$47 +1 New
TIM
606
Tortoise Investment Management
New York
$62 +$47 +1 New
Norges Bank
607
Norges Bank
Norway
– -$115M -2,670,872 Closed
ACI
608
Amazon.com Inc
Washington
– -$36.7M -854,207 Closed
Amundi
609
Amundi
France
– -$16.3M -363,575 Closed
MC
610
Maplelane Capital
New York
– -$4.04M -94,000 Closed
Walleye Trading
611
Walleye Trading
New York
– -$4.31M -91,578 Closed
UBP
612
Union Bancaire Privee
Switzerland
– -$2.66M -82,500 Closed
TC
613
TwinBeech Capital
New York
– -$2.91M -67,785 Closed
SRL
614
Scientech Research LLC
New Jersey
– -$2.66M -61,932 Closed
LP
615
LMR Partners
United Kingdom
– -$1.99M -42,411 Closed
MWM
616
Mission Wealth Management
California
– -$1.38M -32,192 Closed
MF
617
Magnetar Financial
Illinois
– -$1.03M -23,994 Closed
EGM
618
Engineers Gate Manager
New York
– -$810K -18,860 Closed
SCA
619
Sassicaia Capital Advisers
New York
– -$629K -14,640 Closed
MCM
620
Massar Capital Management
Connecticut
– -$602K -14,000 Closed
LCG
621
Lisanti Capital Growth
New York
– -$542K -12,620 Closed
Fisher Asset Management
622
Fisher Asset Management
Washington
– -$517K -12,031 Closed
SI
623
Stephens Inc
Arkansas
– -$515K -11,981 Closed
FIM
624
Freedom Investment Management
Connecticut
– -$509K -11,834 Closed
IWM
625
IHT Wealth Management
Illinois
– -$494K -11,507 Closed
22 23 24
25
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IONQ Hedge Fund Activity: Q3 2025 in Review

608 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in IonQ (IONQ) for Q3 2025, worth a combined $10.3B — up 81% from $5.7B a quarter earlier.

Buyers outnumbered sellers: 174 funds opened new IONQ positions and 41 closed out — a net gain of 133 holders — while 288 added to existing stakes and 87 trimmed.

The largest buyer was Morgan Stanley, adding an estimated $285M. The largest seller was Cerberus Capital Management, cutting an estimated $108M.

  • 608 institutional investors held IonQ (IONQ) as of Q3 2025, up from 482 in Q2 2025.
  • Funds reported $10.3B of IonQ stock for Q3 2025, up 81% quarter-over-quarter.
  • 174 funds opened new IonQ positions in Q3 2025 and 41 closed out, a net change of +133 holders.
  • The largest IonQ buyer in Q3 2025 was Morgan Stanley, an estimated $285M added.
  • The largest IonQ seller in Q3 2025 was Cerberus Capital Management, an estimated $108M sold.

Based on aggregated 13F filings for Q3 2025.