QUANTINUUM INC (QNT)

Institutional ownership reported to the SEC as of Q2 2026, across 1 quarters.

171

Reporting holders

$2.7B

Reported value

2.3%

Held as options

+171

Holder change

Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.

Holders

Filer	Value	Shares	Their book	Held	Change
Capital World Investors	$372.7M	4,558,976	0.04%	new	NEW
CITADEL ADVISORS LLC	$199.1M	2,299,997	0.02%	new	NEW
BlackRock, Inc.	$184.7M	2,259,347	0.00%	new	NEW
Capital Research Global Investors	$143.4M	1,754,325	0.02%	new	NEW
Defiance ETFs, LLC	$95.3M	1,215,283	1.29%	new	NEW
WELLINGTON MANAGEMENT GROUP LLP	$92.4M	1,130,639	0.02%	new	NEW
VANGUARD PORTFOLIO MANAGEMENT LLC	$84.1M	1,028,382	0.00%	new	NEW
Capital International Investors	$78.6M	961,428	0.02%	new	NEW
VANGUARD CAPITAL MANAGEMENT LLC	$77.6M	949,283	0.00%	new	NEW
Balyasny Asset Management L.P.	$67.2M	821,918	0.08%	new	NEW
ALLIANCEBERNSTEIN L.P.	$64.5M	789,326	0.02%	new	NEW
VOYA INVESTMENT MANAGEMENT LLC	$56.5M	691,437	0.05%	new	NEW
FIL Ltd	$54.5M	666,766	0.04%	new	NEW
FMR LLC	$52.5M	642,800	0.00%	new	NEW
NORGES BANK	$46.1M	564,000	0.00%	new	NEW
FRANKLIN RESOURCES INC	$44.6M	545,323	0.01%	new	NEW
Shannon River Fund Management LLC	$38.4M	469,355	3.42%	new	NEW
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	$37.9M	463,913	0.01%	new	NEW
Mubadala Investment Co PJSC	$36.7M	449,500	0.11%	new	NEW
PRINCIPAL FINANCIAL GROUP INC	$36.0M	440,079	0.02%	new	NEW
FEDERATED HERMES, INC.	$32.2M	393,800	0.05%	new	NEW
SUSQUEHANNA INTERNATIONAL GROUP, LLP	$32.1M	2,447	0.00%	new	NEW
MARSHALL WACE, LLP	$32.1M	392,637	0.03%	new	NEW
Jupiter Topco LLC	$31.4M	384,356	0.01%	new	FIRST
Bank of New York Mellon Corp	$30.8M	377,133	0.01%	new	NEW
JENNISON ASSOCIATES LLC	$29.3M	358,462	0.02%	new	NEW
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	$27.4M	335,770	0.03%	new	NEW
Jain Global LLC	$27.3M	334,481	0.11%	new	NEW
VIKING GLOBAL INVESTORS LP	$25.0M	306,123	0.07%	new	NEW
D1 Capital Partners L.P.	$24.5M	300,000	0.07%	new	NEW
Davidson Kempner Capital Management LP	$24.3M	297,800	0.29%	new	NEW
SOROS FUND MANAGEMENT LLC	$21.7M	266,000	0.27%	new	NEW
Granahan Investment Management, LLC	$19.1M	233,540	0.68%	new	NEW
Burkehill Global Management, LP	$18.8M	230,000	0.68%	new	NEW
Schonfeld Strategic Advisors LLC	$17.7M	216,304	0.06%	new	NEW
Ghisallo Capital Management LLC	$16.3M	200,000	0.32%	new	NEW
SEVEN GRAND MANAGERS, LLC	$16.3M	200,000	0.66%	new	NEW
BROWN ADVISORY INC	$15.3M	187,525	0.02%	new	NEW
LMR Partners LLP	$14.9M	182,272	0.06%	new	NEW
Blackstone Inc.	$14.7M	180,000	0.04%	new	NEW
HBK INVESTMENTS L P	$14.7M	179,462	0.14%	new	NEW
Hudson Bay Capital Management LP	$14.6M	178,420	0.04%	new	NEW
TUDOR INVESTMENT CORP ET AL	$14.4M	176,693	0.02%	new	NEW
BlueCrest Capital Management Ltd	$14.3M	175,000	0.47%	new	NEW
MORGAN STANLEY	$12.9M	158,260	0.00%	new	NEW
D. E. Shaw & Co., Inc.	$12.7M	155,000	0.01%	new	NEW
MAPLELANE CAPITAL, LLC	$12.3M	150,000	0.22%	new	NEW
Elliott Investment Management L.P.	$12.3M	150,000	0.05%	new	NEW
ExodusPoint Capital Management, LP	$11.8M	144,022	0.08%	new	NEW
Woodline Partners LP	$11.5M	140,234	0.04%	new	NEW
CAPITAL ADVISORS INC/OK	$11.5M	140,103	0.17%	new	NEW
Weiss Asset Management LP	$11.4M	140,000	0.12%	new	NEW
JANE STREET GROUP, LLC	$11.3M	options only	0.00%	new	OPTIONS
Strong Tower Advisory Services	$10.5M	128,525	1.88%	new	NEW
BW Gestao de Investimentos Ltda.	$10.5M	128,000	0.21%	new	NEW
UBS Group AG	$10.4M	126,886	0.00%	new	NEW
Freestone Grove Partners LP	$9.5M	116,250	0.06%	new	NEW
Shay Capital LLC	$9.3M	109,133	0.60%	new	NEW
BANK OF AMERICA CORP /DE/	$9.2M	112,844	0.00%	new	NEW
NEUBERGER BERMAN GROUP LLC	$8.9M	109,425	0.01%	new	NEW
MILLENNIUM MANAGEMENT LLC	$8.8M	107,656	0.00%	new	NEW
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	$8.4M	103,154	0.01%	new	NEW
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	$8.2M	100,000	0.01%	new	NEW
Longaeva Partners L.P.	$8.2M	100,000	0.18%	new	NEW
PEREGRINE CAPITAL MANAGEMENT LLC	$8.0M	98,230	0.26%	new	NEW
WESTFIELD CAPITAL MANAGEMENT CO LP	$7.9M	96,396	0.03%	new	NEW
IMC-Chicago, LLC	$5.4M	21,772	0.00%	new	NEW
Zimmer Partners, LP	$4.7M	58,000	0.11%	new	NEW
LAZARD ASSET MANAGEMENT LLC	$4.2M	51,798	0.01%	new	NEW
READYSTATE ASSET MANAGEMENT LP	$4.1M	50,290	0.14%	new	NEW
Insight Holdings Group, LLC	$4.1M	50,000	0.31%	new	NEW
Zweig-DiMenna Associates LLC	$3.4M	41,000	0.30%	new	NEW
SIMPLEX TRADING, LLC	$3.4M	options only	0.00%	new	OPTIONS
Covalis Capital LLP	$3.3M	40,000	0.18%	new	NEW
Yaupon Capital Management LP	$3.3M	40,000	0.06%	new	NEW
Atreides Management, LP	$3.3M	39,853	0.02%	new	NEW
GILDER GAGNON HOWE & CO LLC	$3.1M	38,172	0.03%	new	NEW
VANGUARD FIDUCIARY TRUST CO	$3.1M	37,393	0.00%	new	NEW
Walleye Capital LLC	$2.9M	36,000	0.01%	new	NEW
LIGHT STREET CAPITAL MANAGEMENT, LLC	$2.9M	35,242	0.32%	new	NEW
AMERICAN CENTURY COMPANIES INC	$2.5M	30,000	0.00%	new	NEW
GROUP ONE TRADING LLC	$2.3M	options only	0.00%	new	OPTIONS
FIRST TRUST ADVISORS LP	$2.2M	26,590	0.00%	new	NEW
Anson Funds Management LP	$2.0M	25,000	0.12%	new	NEW
AMERIPRISE FINANCIAL INC	$2.0M	24,648	0.00%	new	NEW
STEADFAST CAPITAL MANAGEMENT LP	$1.9M	23,320	0.06%	new	NEW
WELLS FARGO & COMPANY/MN	$1.9M	23,200	0.00%	new	NEW
Scientech Research LLC	$1.9M	22,692	1.50%	new	NEW
Coastal Bridge Advisors, LLC	$1.8M	22,180	0.11%	new	NEW
Maytus Capital Management, LLC	$1.6M	20,000	0.26%	new	NEW
Siren, L.L.C.	$1.6M	20,000	0.03%	new	NEW
WIM INVESTMENT MANAGEMENT Ltd	$1.6M	20,000	0.54%	new	NEW
SEI INVESTMENTS CO	$1.6M	19,585	0.00%	new	NEW
Canton Hathaway, LLC	$1.5M	18,725	0.29%	new	NEW
XTX Topco Ltd	$1.4M	17,425	0.02%	new	NEW
GOLDMAN SACHS GROUP INC	$1.4M	16,877	0.00%	new	NEW
Cherry Creek Investment Advisors, Inc.	$1.3M	16,042	0.52%	new	NEW
WINTON GROUP Ltd	$1.3M	15,700	0.04%	new	NEW
GEODE CAPITAL MANAGEMENT, LLC	$1.3M	15,527	0.00%	new	NEW
Baird Financial Group, Inc.	$1.3M	15,301	0.00%	new	NEW

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

Filed	Form	Filer	% of class
2026-08-13	13G	Honeywell International Inc.with 1 co-filers	79.1%
2026-08-12	13G	Capital Research Global Investors	5.3%
2026-07-17	13G	BlackRock Portfolio Management LLC	6.9%
2026-07-06	13G	Capital World Investors	13.9%

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

Quarter	Holders	Value	Shares	New	Added	Trimmed	Options
Q2 2026	171	$2.7B	32,601,659	175	0	0	2.3%