DOSSIER · 13F Holders · Q1 2026Technology · Services-Computer Integrated Systems Design
IONQ

IONQ INC

710 institutions still hold IONQ INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 46222L108·Services-Computer Integrated Systems Design·710 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$4.9B
visible holders
Holders
710
filers reporting
Concentration
17.61%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

Institutional sentiment on IonQ Inc (IONQ) ran nearly one-way in Q2 2026 — a single modest seller against a $94.6 million, 71-holder base — and the largest position in the stock grew almost entirely on price. UNICOM Systems, Inc. holds $41.0 million (43.3% of total institutional value) with its share count completely unchanged at 768,900 shares — yet the position's dollar value rose $18.8 million this quarter on the stock's own price gain. Hamilton Lane Advisors shows the identical pattern at smaller scale: unchanged at 195,000 shares, its stake still gained $4.8 million in value. Real buying is happening too: Benin Management Corp increased its stake 262.5% (a genuine $1.3 million addition, the largest true buy), and Zevenbergen Capital Investments opened a substantial new $10.7 million position. Ten firms opened brand-new positions this quarter, while the only meaningful seller, Milestone Asset Management, trimmed just 17.9% (-$230,562) — a genuinely one-sided quarter for institutional sentiment.

The largest holders didn't trade — the stock did the work

UNICOM Systems, Inc. is the dominant holder at $41.0 million, or 43.3% of total institutional value, with a share count that hasn't budged from 768,900. Yet that position's dollar value rose $18.8 million this quarter — entirely a function of IonQ's own price appreciation, not any decision by UNICOM Systems. Hamilton Lane Advisors shows the same pattern on a smaller scale: unchanged at 195,000 shares, its position still gained $4.8 million in value. Together, these two static holders account for $23.5 million in quarter-over-quarter value growth without a single share changing hands.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$861M29.9M0.01%Q1 2026
02
MORGAN STANLEY
CIK 0000895421
$610M21.2M0.04%Q1 2026
03
Vanguard Portfolio Management
CIK 0002100121· Index
$444M15.4M0.02%Q1 2026
04
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$434M15.1M0.01%Q1 2026
05
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$359M12.4M0.04%Q1 2026
06
Defiance ETFs, LLC
CIK 0001732541
$280M9.7M4.01%Q1 2026
07
STATE STREET CORP
CIK 0000093751
$267M9.3M0.01%Q1 2026
08
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$243M8.4M0.02%Q1 2026
09
GOLDMAN SACHS GROUP INC
CIK 0000886982
$182M6.3M0.02%Q1 2026
10
UBS Group AG
CIK 0001610520
$177M6.1M0.03%Q1 2026
11
CITADEL ADVISORS LLC
CIK 0001423053
$174M3.9M0.03%Q4 2025
12
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$154M5.3M0.02%Q1 2026
13
Marex Group plc
CIK 0001997464
$115M4.0M0.73%Q1 2026
14
WOLVERINE TRADING, LLC
CIK 0000927337
$113M1.8M0.08%Q3 2025
15
D. E. Shaw & Co., Inc.
CIK 0001009207
$94M2.1M0.05%Q4 2025
16
NORTHERN TRUST CORP
CIK 0000073124· Index
$93M3.2M0.01%Q1 2026
17
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$84M2.9M0.01%Q1 2026
18
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$71M2.5M0.06%Q1 2026
19
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$69M2.4M0.02%Q1 2026
20
CANTOR FITZGERALD, L. P.
CIK 0001024896
$67M2.3M0.99%Q1 2026
Page 1 of 36
690 more holders available. Log in →
Insiders at IONQ INC
Chou Kathryn K.Raymond John WToledano Gabrielle BScannell William FTeuber William J JrFrankola JimSingh Inder MDacier Paul T