DaveManuel.com · Institutional Ownership · Who Owns It

QUANTINUUM INC (QNT)

Institutional ownership reported to the SEC as of Q2 2026, across 2 quarters.

179

Reporting holders

$2.8B

Reported value

1.6%

Calls

0.7%

Puts

+179

Holder change

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

Filer	Value	Shares	Their book	Held	Change
Capital World Investors	$372.7M	4,558,976	0.04%	new	NEW
CITADEL ADVISORS LLC	$199.1M incl. $11.1M options CALL+PUT	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
Penserra Capital Management LLC	$98.1M	1,200,176	0.75%	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 incl. $31.9M options CALL+PUT	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 CALL+PUT	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 incl. $408.7K options CALL	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
LORD, ABBETT & CO. LLC	$8.2M	99,756	0.02%	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
T. Rowe Price Investment Management, Inc.	$6.0M	73,551	0.00%	new	NEW
IMC-Chicago, LLC	$5.4M incl. $3.6M options CALL+PUT	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 CALL+PUT	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 CALL+PUT	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

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
2026-10-27	13G/A	BlackRock Portfolio Management LLC	4.5%
2026-10-06	13G	Kenneth Griffinwith 6 co-filers	7.3%

What the company announced

Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.

Filed	Event date	What	Source
2026-09-08	2026-09-08	Material agreement entered	filing

What the insiders did

Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.

Officers and directors

Date	Insider	Role	Side	Shares	Value
2026-06-05	Barron Hal	Director	Bought	250,000	$15.0M
2026-06-05	JIMENEZ JOSEPH	Director	Bought	66,665	$4.0M
2026-06-05	BHATIA MANISH H	Director	Bought	20,000	$1.2M
2026-06-05	Dehoff Kevin Scott	Chief Strategy Officer	Bought	15,000	$900.0K
2026-06-05	DENMAN KENNETH D	Director	Bought	14,000	$840.0K
2026-06-05	Stepniak Michal	Director	Bought	13,333	$800.0K
2026-06-05	Kapur Vimal	Director	Bought	13,000	$780.0K
2026-06-05	Branderiz Eric	Director	Bought	8,334	$500.0K
2026-06-05	SHARAN NITESH	Chief Financial Officer	Bought	6,500	$390.0K
2026-06-05	Daugherty Paul R.	Director	Bought	4,000	$240.0K

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
Q3 2026	44	$40.9M	852,024	20	15	1	0.0%
Q2 2026	179	$2.8B	33,999,034	183	0	0	2.3%