QUANTUM SI INC (QSI) is held by institutional investors who disclose positions via SEC 13F filings. View the full list of institutional holders on HoldingsIntel.

Are institutions buying or selling QSI?

HoldingsIntel tracks quarter-over-quarter changes in institutional positions for QUANTUM SI INC, showing new buyers, position increases, decreases, and exits with conviction-weighted sentiment.

What is the Smart Money Verdict on QSI?

The Smart Money Verdict combines four independent signals (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for QUANTUM SI INC.

Is institutional money flowing into QSI?

24 institutional investors hold QUANTUM SI INC (QSI). View detailed buyer/seller breakdown on HoldingsIntel.

What do hedge funds think about QSI?

Track institutional sentiment and conviction scores for QUANTUM SI INC (QSI) including Smart Money Verdict and position changes on HoldingsIntel.

QUANTUM SI INC

QSI·74765K105·US·equity·Healthcare - Medical Devices-Activist

QSI (QUANTUM SI INC) is held by 24 institutional investors as of Q1 2026. Largest holders: BlackRock, Inc. ($10.4M), ARK Investment Management LLC ($5.3M), Amova Asset Management Americas, Inc. ($3.4M). Net institutional sentiment: Mixed.

Holders

Avg rating(11 Elite)

$9.2M

Total Value

55% (26)

Fund Consensus

11 buying - 9 selling

Smart Money Verdict

View all

44Weak MomentumStrong Convergence

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See how QSI's score breaks down across 4 SEC sources

Held by 24 funds

11 elite

Who's Trading

InsiderUNUnknownSell $83K

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	13.4M(+2.8%)	$10.4M	0.0%	—	28
ARK Investment Management LLC	Decreased	6.9M(-2.0%)	$5.3M	0.0%	—	0
Amova Asset Management Americas, Inc.	Decreased	4.4M(-6.4%)	$3.4M	0.0%	-75.18%	0
Sumitomo Mitsui Trust Group, Inc.	Decreased	4.4M(-6.4%)	$3.4M	0.0%	-57.43%	0
GEODE CAPITAL MANAGEMENT, LLC	Decreased	3.8M(-6.8%)	$3M	0.0%	—	0
STATE STREET CORP	Increased	3.8M(+5.8%)	$2.9M	0.0%	—	28
AQR CAPITAL MANAGEMENT LLC	Increased	2.4M(+2659.5%)	$1.9M	0.0%	—	42
UBS Group AG	Increased	1.7M(+17.5%)	$1.3M	0.0%	-51.80%	30
SUSQUEHANNA INTERNATIONAL GROUP, LLP	Decreased	1.5M(-37.1%)	$1.1M	0.0%	—	0
NORTHERN TRUST CORP	Decreased	1.3M(-42.9%)	$975,783	0.0%	—	0
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	457,571(-2.3%)	$354,160	0.0%	—	0
NUNuveen, LLC	Increased	451,367(+0.9%)	$349,358	0.0%	-57.15%	24
GOLDMAN SACHS GROUP INC	Increased	444,177(+14.8%)	$343,793	0.0%	—	18
Invesco Ltd.	Increased	406,690(+1.0%)	$314,778	0.0%	—	16
XTX Topco Ltd	Decreased	389,254(-15.7%)	$301,283	0.0%	—	0
ALLIANCEBERNSTEIN L.P.	Unchanged	272,180	$299,398	0.0%	—	0
Bank of New York Mellon Corp	Decreased	383,088(-5.7%)	$296,510	0.0%	—	0
IEQ CAPITAL, LLC	New	357,688	$276,850	0.0%	—	32
GROUP ONE TRADING LLC	Increased	283,981(+15.5%)	$219,801	0.0%	—	26
IMC-Chicago, LLC	New	220,876	$170,958	0.0%	-21.05%	31
CIBC Bancorp USA Inc.	Increased	208,510(+1145.2%)	$161,387	0.0%	—	36
Mariner, LLC	Increased	199,692(+251.1%)	$154,546	0.0%	—	36
RHUMBLINE ADVISERS	Decreased	193,068(-0.3%)	$149,425	0.0%	—	0
MORGAN STANLEY	Decreased	129,940(-67.5%)	$100,574	0.0%	—	0
$DEUTSCHE BANK AG\$ DEUTSCHE BANK AG\	Unchanged	119,028	$91,652	0.0%	-55.09%	0
RENAISSANCE TECHNOLOGIES LLC	New	117,900	$91,255	0.0%	—	30
LOS ANGELES CAPITAL MANAGEMENT LLC	Increased	116,341(+25.1%)	$90,047	0.0%	-30.42%	26
JONES FINANCIAL COMPANIES LLLP	Increased	109,900(+11.1%)	$83,964	0.0%	—	16
MetLife Investment Management, LLC	Increased	101,555(+196.8%)	$78,604	0.0%	—	34
SIMPLEX TRADING, LLC	Increased	90,531(+12.4%)	$70,070	0.0%	—	16
Cerity Partners LLC	New	80,650	$62,423	0.0%	—	29
JPMORGAN CHASE & CO	Increased	83,519(+8.6%)	$61,621	0.0%	—	15
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	Increased	74,928(+2.7%)	$57,994	0.0%	—	21
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	New	89,536	$57,874	0.0%	-21.05%	29
CAPTRUST FINANCIAL ADVISORS	Increased	69,036(+99.5%)	$53,427	0.0%	—	33
WELLS FARGO & COMPANY/MN	Decreased	63,868(-63.7%)	$49,434	0.0%	—	0
MGMERCER GLOBAL ADVISORS INC /ADV	New	55,195	$42,721	0.0%	—	28
TWO SIGMA INVESTMENTS, LP	Decreased	52,924(-96.2%)	$40,963	0.0%	—	0
Creative Planning	New	52,548	$40,672	0.0%	—	31
MANUFACTURERS LIFE INSURANCE COMPANY, THE	Decreased	47,453(-1.9%)	$36,729	0.0%	—	0
INTECH INVESTMENT MANAGEMENT LLC	Decreased	46,486(-29.2%)	$35,980	0.0%	-71.82%	0
Police & Firemen's Retirement System of New Jersey	Unchanged	46,170	$35,736	0.0%	-72.20%	0
Sanctuary Advisors, LLC	Increased	42,824(+1.0%)	$33,146	0.0%	-74.32%	20
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM	Unchanged	41,282	$31,952	0.0%	-32.43%	0
BARCLAYS PLC	Decreased	39,137(-85.5%)	$30,293	0.0%	—	0
BNP PARIBAS FINANCIAL MARKETS	Increased	38,390(+5.8%)	$29,714	0.0%	—	14
MFMerit Financial Group, LLC	New	36,347	$28,133	0.0%	-21.05%	27
ProShare Advisors LLC	Decreased	33,239(-11.0%)	$25,727	0.0%	-72.33%	0
SEI INVESTMENTS CO	Unchanged	33,103	$25,622	0.0%	—	0
FMR LLC	Decreased	31,968(-67.3%)	$24,743	0.0%	—	0
COMMONWEALTH EQUITY SERVICES, LLC	Increased	29,792(+6.5%)	$23,060	0.0%	-58.49%	14
VOYA INVESTMENT MANAGEMENT LLC	Unchanged	27,246	$21,088	0.0%	—	0
NEW YORK STATE COMMON RETIREMENT FUND	Unchanged	26,084	$20,189	0.0%	-68.73%	0
Vanguard Personalized Indexing Management, LLC	Increased	23,991(+0.8%)	$18,569	0.0%	—	19
FWFocus Partners Wealth	New	23,517	$18,203	0.0%	—	28
LPL Financial LLC	Decreased	22,467(-10.9%)	$17,389	0.0%	-45.16%	0
PRUDENTIAL FINANCIAL INC	New	21,570	$16,695	0.0%	—	28
VICTORY CAPITAL MANAGEMENT INC	Increased	19,808(+0.1%)	$15,331	0.0%	—	12
CITADEL ADVISORS LLC	Decreased	15,546(-99.4%)	$12,033	0.0%	—	0
IWIntegrated Wealth Concepts LLC	New	14,499	$11,222	0.0%	—	24
XPONANCE LLC	Increased	13,849(+17.1%)	$10,719	0.0%	—	20
CITIGROUP INC	Decreased	13,314(-32.7%)	$10,305	0.0%	—	0
Legal & General Group Plc	Unchanged	12,860	$9,954	0.0%	-79.57%	0
Russell Investments Group, Ltd.	Decreased	11,848(-55.9%)	$9,170	0.0%	-55.62%	0
Cresset Asset Management, LLC	Unchanged	10,207	$7,900	0.0%	—	0
Mirae Asset Global Investments Co., Ltd.	Increased	10,200(+7.3%)	$7,895	0.0%	-31.76%	12
OSAIC HOLDINGS, INC.	Increased	7,970(+12.2%)	$6,136	0.0%	—	12
Allworth Financial LP	Increased	6,829(+1466.3%)	$5,286	0.0%	—	17
WAWOLVERINE ASSET MANAGEMENT LLC	Unchanged	6,170	$4,776	0.0%	-70.30%	0
Steward Partners Investment Advisory, LLC	New	2,000	$1,548	0.0%	-21.05%	17
Farther Finance Advisors, LLC	New	1,334	$997	0.0%	-21.05%	17
MAI Capital Management	New	1,274	$987	0.0%	—	17
Optiver Holding B.V.	Decreased	806(-13.1%)	$624	0.0%	—	0
Walleye Trading LLC	New	448	$347	0.0%	—	17
NISA INVESTMENT ADVISORS, LLC	Decreased	382(-37.2%)	$296	0.0%	-74.78%	0
Walleye Capital LLC	Increased	312(+437.9%)	$241	0.0%	—	12
TD Waterhouse Canada Inc.	Decreased	300(-62.5%)	$224	0.0%	—	0
PRICE T ROWE ASSOCIATES INC /MD/	Unchanged	96,486	$75	0.0%	—	0
Virtu Financial LLC	Decreased	64,751(-72.8%)	$50	0.0%	—	0
Federation des caisses Desjardins du Quebec	Unchanged	50	$39	0.0%	—	0
BALYASNY ASSET MANAGEMENT L.P.	Exited	0(-100.0%)	$21,230	0.0%	—	0
DIMENSIONAL FUND ADVISORS LP	Exited	0(-100.0%)	$34,452	0.0%	-14.41%	0
JANE STREET GROUP, LLC	Exited	0(-100.0%)	$1.2M	0.0%	—	0
Neuberger Berman Group LLC	Exited	0(-100.0%)	$29,502	0.0%	—	0
Kestra Advisory Services, LLC	Exited	0(-100.0%)	$11,099	0.0%	-25.20%	0
HRT FINANCIAL LP	Exited	0(-100.0%)	$114,000	0.0%	—	0
Quadrature Capital Ltd	Exited	0(-100.0%)	$304,578	0.0%	—	0
MILLENNIUM MANAGEMENT LLC	Exited	0(-100.0%)	$210,970	0.0%	—	0
ROYAL BANK OF CANADA	Decreased	109(-97.6%)	$0	0.0%	—	0

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