Quantum Corp (QMCO)

Q2 2026 vs Q3 2026

Comparing institutional holders between quarters

Compare Detailed Historical Funds Options 13D/13G Peers Targeting Trading Summary Profile

Sort by

Two Seas Capital LP

DECREASED

Shares1,490,992 from 2,488,535

Change-997,543 (-40%)

Value$47.3M (+$19.9M)

Filed 2026-10-06

Geode Capital Management, LLC

INCREASED

Shares305,156 from 164,600

Change+140,556 (+85%)

Value$9.7M (+$7.9M)

Filed 2026-11-06

Barclays PLC

INCREASED

Shares31,257 from 455

Change+30,802 (+6770%)

Value$991.5K (+$986.5K)

Filed 2026-11-06

Y-Intercept (Hong Kong) Ltd

NEW

Shares21,886

Change+21,886

Value$694.2K

Filed 2026-10-16

Cambridge Investment Research Advisors, Inc.

NEW

Shares14,126

Change+14,126

Value$448

Filed 2026-11-02

Flagship Harbor Advisors, LLC

UNCHANGED

Shares11,004 from 11,004

Change0 (0%)

Value$349.0K (+$228.0K)

Filed 2026-10-26

Jefferies Financial Group Inc.

NEW

Shares7,700

Change+7,700

Value$244.2K

Filed 2026-11-05

LPL Financial LLC

NEW

Shares7,273

Change+7,273

Value$230.7K

Filed 2026-11-06

Calamos Advisors LLC

NEW

Shares6,770

Change+6,770

Value$214.7K

Filed 2026-11-02

True Private Wealth Advisors

NEW

Shares6,645

Change+6,645

Value$210.8K

Filed 2026-10-19

Bank of New York Mellon Corp

NEW

Shares6,539

Change+6,539

Value$207.4K

Filed 2026-11-05

State of Alaska, Department of Revenue

NEW

Shares1,936

Change+1,936

Value$61

Filed 2026-10-15

SBI Securities Co., Ltd.

INCREASED

Shares1,324 from 1,070

Change+254 (+24%)

Value$42.0K (+$30.2K)

Filed 2026-10-22

Signaturefd, LLC

NEW

Shares696

Change+696

Value$22.1K

Filed 2026-10-23

Carolina Wealth Advisors, LLC

NEW

Shares416

Change+416

Value$13.2K

Filed 2026-10-23

Fifth Third Bancorp

NEW

Shares273

Change+273

Value$8.7K

Filed 2026-11-05

Citigroup Inc

DECREASED

Shares208 from 14,426

Change-14,218 (-99%)

Value$6.6K (-$152.1K)

Filed 2026-11-04

Caitong International Asset Management Co., Ltd

NEW

Shares121

Change+121

Value$3.8K

Filed 2026-10-29

Blue Bell Private Wealth Management, LLC

NEW

Shares34

Change+34

Value$1.1K

Filed 2026-10-29

GK Wealth Management LLC

NEW

Shares13

Change+13

Value$412

Filed 2026-10-09

Cassaday & Co Wealth Management LLC

NEW

Shares7

Change+7

Value$223

Filed 2026-10-27

Farther Finance Advisors, LLC

UNCHANGED

Shares4 from 4

Change0 (0%)

Value$127 (+$83)

Filed 2026-10-08

Alyeska Investment Group, L.P.

N/A

Shares— from 2,653,928

Change-2,653,928 (-100%)

Value—

Oaktree Capital Management LP

N/A

Shares— from 2,011,678

Change-2,011,678 (-100%)

Value—

Neuberger Berman Group LLC

N/A

Shares— from 1,163,315

Change-1,163,315 (-100%)

Value—

Ashford Capital Management Inc

N/A

Shares— from 1,039,200

Change-1,039,200 (-100%)

Value—

Portolan Capital Management, LLC

N/A

Shares— from 1,020,120

Change-1,020,120 (-100%)

Value—

Marshall Wace, LLP

N/A

Shares— from 713,075

Change-713,075 (-100%)

Value—

Vanguard Capital Management LLC

N/A

Shares— from 605,541

Change-605,541 (-100%)

Value—

Manatuck Hill Partners, LLC

N/A

Shares— from 350,000

Change-350,000 (-100%)

Value—

BlackRock, Inc.

N/A

Shares— from 273,030

Change-273,030 (-100%)

Value—

Cinctive Capital Management LP

N/A

Shares— from 182,769

Change-182,769 (-100%)

Value—

Bank of America Corp

N/A

Shares— from 170,130

Change-170,130 (-100%)

Value—

Renaissance Technologies LLC

N/A

Shares— from 154,516

Change-154,516 (-100%)

Value—

Sona Asset Management (US) LLC

N/A

Shares— from 150,000

Change-150,000 (-100%)

Value—

Walleye Capital LLC

N/A

Shares— from 120,044

Change-120,044 (-100%)

Value—

Raymond James Financial Inc

N/A

Shares— from 103,836

Change-103,836 (-100%)

Value—

Centiva Capital, LP

N/A

Shares— from 100,000

Change-100,000 (-100%)

Value—

KKM Financial LLC

N/A

Shares— from 90,274

Change-90,274 (-100%)

Value—

Vanguard Fiduciary Trust Co

N/A

Shares— from 89,125

Change-89,125 (-100%)

Value—

Qube Research & Technologies Ltd

N/A

Shares— from 80,977

Change-80,977 (-100%)

Value—

State Street Corp

N/A

Shares— from 75,914

Change-75,914 (-100%)

Value—

Cygnus Capital Advisors, LLC

N/A

Shares— from 74,323

Change-74,323 (-100%)

Value—

Susquehanna International Group, LLP

N/A

Shares— from 69,775

Change-69,775 (-100%)

Value—

Man Group plc

N/A

Shares— from 68,593

Change-68,593 (-100%)

Value—

Informed Momentum Co LLC

N/A

Shares— from 64,857

Change-64,857 (-100%)

Value—

UBS Group AG

N/A

Shares— from 46,106

Change-46,106 (-100%)

Value—

SEI Investments Co

N/A

Shares— from 38,739

Change-38,739 (-100%)

Value—

Susquehanna Fundamental Investments, LLC

N/A

Shares— from 34,601

Change-34,601 (-100%)

Value—

Squarepoint Ops LLC

N/A

Shares— from 33,817

Change-33,817 (-100%)

Value—

Northern Trust Corp

N/A

Shares— from 33,220

Change-33,220 (-100%)

Value—

Price T Rowe Associates Inc

N/A

Shares— from 25,069

Change-25,069 (-100%)

Value—

Millennium Management LLC

N/A

Shares— from 21,755

Change-21,755 (-100%)

Value—

Goldman Sachs Group Inc

N/A

Shares— from 19,153

Change-19,153 (-100%)

Value—

Bridgeway Capital Management, LLC

N/A

Shares— from 16,240

Change-16,240 (-100%)

Value—

Morgan Stanley

N/A

Shares— from 15,492

Change-15,492 (-100%)

Value—

Kovack Advisors, Inc.

N/A

Shares— from 13,430

Change-13,430 (-100%)

Value—

Schonfeld Strategic Advisors LLC

N/A

Shares— from 12,055

Change-12,055 (-100%)

Value—

Wells Fargo & Company

N/A

Shares— from 11,300

Change-11,300 (-100%)

Value—

Invesco Ltd.

N/A

Shares— from 10,839

Change-10,839 (-100%)

Value—

Vanguard Global Advisers, LLC

N/A

Shares— from 6,000

Change-6,000 (-100%)

Value—

JPMorgan Chase & Co

N/A

Shares— from 3,680

Change-3,680 (-100%)

Value—

Jones Financial Companies Lllp

N/A

Shares— from 1,580

Change-1,580 (-100%)

Value—

BNP Paribas Financial Markets

N/A

Shares— from 1,187

Change-1,187 (-100%)

Value—

Federated Hermes, Inc.

N/A

Shares— from 1,158

Change-1,158 (-100%)

Value—

Royal Bank of Canada

N/A

Shares— from 765

Change-765 (-100%)

Value—

Tower Research Capital LLC (TRC)

N/A

Shares— from 655

Change-655 (-100%)

Value—

Osaic Holdings, Inc.

N/A

Shares— from 485

Change-485 (-100%)

Value—

Harbour Investments, Inc.

N/A

Shares— from 183

Change-183 (-100%)

Value—

BFC Planning, Inc.

N/A

Shares— from 172

Change-172 (-100%)

Value—

FMR LLC

N/A

Shares— from 106

Change-106 (-100%)

Value—

EFG International AG

N/A

Shares— from 100

Change-100 (-100%)

Value—

Global Retirement Partners, LLC

N/A

Shares— from 65

Change-65 (-100%)

Value—

Continuum Advisory, LLC

N/A

Shares— from 34

Change-34 (-100%)

Value—

Quarry LP

N/A

Shares— from 17

Change-17 (-100%)

Value—

Hollencrest Capital Management

N/A

Shares— from 10

Change-10 (-100%)

Value—

NewEdge Advisors, LLC

N/A

Shares— from 0

Change0

Value—

	Status
Two Seas Capital LP	DECREASED	1,490,992	2,488,535	-997,543	-40%	$27.4M	$47.3M	+$19.9M	2026-10-06
Geode Capital Management, LLC	INCREASED	305,156	164,600	+140,556	+85%	$1.8M	$9.7M	+$7.9M	2026-11-06
Barclays PLC	INCREASED	31,257	455	+30,802	+6770%	$5.0K	$991.5K	+$986.5K	2026-11-06
Y-Intercept (Hong Kong) Ltd	NEW	21,886	—	+21,886	—	—	$694.2K	—	2026-10-16
Cambridge Investment Research Advisors, Inc.	NEW	14,126	—	+14,126	—	—	$448	—	2026-11-02
Flagship Harbor Advisors, LLC	UNCHANGED	11,004	11,004	0	0%	$121.0K	$349.0K	+$228.0K	2026-10-26
Jefferies Financial Group Inc.	NEW	7,700	—	+7,700	—	—	$244.2K	—	2026-11-05
LPL Financial LLC	NEW	7,273	—	+7,273	—	—	$230.7K	—	2026-11-06
Calamos Advisors LLC	NEW	6,770	—	+6,770	—	—	$214.7K	—	2026-11-02
True Private Wealth Advisors	NEW	6,645	—	+6,645	—	—	$210.8K	—	2026-10-19
Bank of New York Mellon Corp	NEW	6,539	—	+6,539	—	—	$207.4K	—	2026-11-05
State of Alaska, Department of Revenue	NEW	1,936	—	+1,936	—	—	$61	—	2026-10-15
SBI Securities Co., Ltd.	INCREASED	1,324	1,070	+254	+24%	$11.8K	$42.0K	+$30.2K	2026-10-22
Signaturefd, LLC	NEW	696	—	+696	—	—	$22.1K	—	2026-10-23
Carolina Wealth Advisors, LLC	NEW	416	—	+416	—	—	$13.2K	—	2026-10-23
Fifth Third Bancorp	NEW	273	—	+273	—	—	$8.7K	—	2026-11-05
Citigroup Inc	DECREASED	208	14,426	-14,218	-99%	$158.7K	$6.6K	-$152.1K	2026-11-04
Caitong International Asset Management Co., Ltd	NEW	121	—	+121	—	—	$3.8K	—	2026-10-29
Blue Bell Private Wealth Management, LLC	NEW	34	—	+34	—	—	$1.1K	—	2026-10-29
GK Wealth Management LLC	NEW	13	—	+13	—	—	$412	—	2026-10-09
Cassaday & Co Wealth Management LLC	NEW	7	—	+7	—	—	$223	—	2026-10-27
Farther Finance Advisors, LLC	UNCHANGED	4	4	0	0%	$44	$127	+$83	2026-10-08
Alyeska Investment Group, L.P.	N/A	—	2,653,928	-2,653,928	-100%	$29.2M	—	—	—
Oaktree Capital Management LP	N/A	—	2,011,678	-2,011,678	-100%	$22.1M	—	—	—
Neuberger Berman Group LLC	N/A	—	1,163,315	-1,163,315	-100%	$12.8M	—	—	—
Ashford Capital Management Inc	N/A	—	1,039,200	-1,039,200	-100%	$10.6M	—	—	—
Portolan Capital Management, LLC	N/A	—	1,020,120	-1,020,120	-100%	$11.2M	—	—	—
Marshall Wace, LLP	N/A	—	713,075	-713,075	-100%	$7.8M	—	—	—
Vanguard Capital Management LLC	N/A	—	605,541	-605,541	-100%	$6.7M	—	—	—
Manatuck Hill Partners, LLC	N/A	—	350,000	-350,000	-100%	$3.9M	—	—	—
BlackRock, Inc.	N/A	—	273,030	-273,030	-100%	$3.0M	—	—	—
Cinctive Capital Management LP	N/A	—	182,769	-182,769	-100%	$2.0M	—	—	—
Bank of America Corp	N/A	—	170,130	-170,130	-100%	$1.9M	—	—	—
Renaissance Technologies LLC	N/A	—	154,516	-154,516	-100%	$1.7M	—	—	—
Sona Asset Management (US) LLC	N/A	—	150,000	-150,000	-100%	$1.7M	—	—	—
Walleye Capital LLC	N/A	—	120,044	-120,044	-100%	$1.3M	—	—	—
Raymond James Financial Inc	N/A	—	103,836	-103,836	-100%	$1.1M	—	—	—
Centiva Capital, LP	N/A	—	100,000	-100,000	-100%	$1.1M	—	—	—
KKM Financial LLC	N/A	—	90,274	-90,274	-100%	$960.5K	—	—	—
Vanguard Fiduciary Trust Co	N/A	—	89,125	-89,125	-100%	$980.4K	—	—	—
Qube Research & Technologies Ltd	N/A	—	80,977	-80,977	-100%	$890.7K	—	—	—
State Street Corp	N/A	—	75,914	-75,914	-100%	$835.1K	—	—	—
Cygnus Capital Advisors, LLC	N/A	—	74,323	-74,323	-100%	$818.0K	—	—	—
Susquehanna International Group, LLP	N/A	—	69,775	-69,775	-100%	$767.5K	—	—	—
Man Group plc	N/A	—	68,593	-68,593	-100%	$754.5K	—	—	—
Informed Momentum Co LLC	N/A	—	64,857	-64,857	-100%	$713.4K	—	—	—
UBS Group AG	N/A	—	46,106	-46,106	-100%	$507.2K	—	—	—
SEI Investments Co	N/A	—	38,739	-38,739	-100%	$426.2K	—	—	—
Susquehanna Fundamental Investments, LLC	N/A	—	34,601	-34,601	-100%	$380.6K	—	—	—
Squarepoint Ops LLC	N/A	—	33,817	-33,817	-100%	$372.0K	—	—	—
Northern Trust Corp	N/A	—	33,220	-33,220	-100%	$365.4K	—	—	—
Price T Rowe Associates Inc	N/A	—	25,069	-25,069	-100%	$276.0K	—	—	—
Millennium Management LLC	N/A	—	21,755	-21,755	-100%	$239.3K	—	—	—
Goldman Sachs Group Inc	N/A	—	19,153	-19,153	-100%	$210.7K	—	—	—
Bridgeway Capital Management, LLC	N/A	—	16,240	-16,240	-100%	$178.6K	—	—	—
Morgan Stanley	N/A	—	15,492	-15,492	-100%	$170.4K	—	—	—
Kovack Advisors, Inc.	N/A	—	13,430	-13,430	-100%	$146.8K	—	—	—
Schonfeld Strategic Advisors LLC	N/A	—	12,055	-12,055	-100%	$132.6K	—	—	—
Wells Fargo & Company	N/A	—	11,300	-11,300	-100%	$124.3K	—	—	—
Invesco Ltd.	N/A	—	10,839	-10,839	-100%	$119.2K	—	—	—
Vanguard Global Advisers, LLC	N/A	—	6,000	-6,000	-100%	$66.0K	—	—	—
JPMorgan Chase & Co	N/A	—	3,680	-3,680	-100%	$43.6K	—	—	—
Jones Financial Companies Lllp	N/A	—	1,580	-1,580	-100%	$18.4K	—	—	—
BNP Paribas Financial Markets	N/A	—	1,187	-1,187	-100%	$13.1K	—	—	—
Federated Hermes, Inc.	N/A	—	1,158	-1,158	-100%	$12.7K	—	—	—
Royal Bank of Canada	N/A	—	765	-765	-100%	$8.0K	—	—	—
Tower Research Capital LLC (TRC)	N/A	—	655	-655	-100%	$7.2K	—	—	—
Osaic Holdings, Inc.	N/A	—	485	-485	-100%	$5.3K	—	—	—
Harbour Investments, Inc.	N/A	—	183	-183	-100%	$2.0K	—	—	—
BFC Planning, Inc.	N/A	—	172	-172	-100%	$1.9K	—	—	—
FMR LLC	N/A	—	106	-106	-100%	$1.2K	—	—	—
EFG International AG	N/A	—	100	-100	-100%	$1.1K	—	—	—
Global Retirement Partners, LLC	N/A	—	65	-65	-100%	$715	—	—	—
Continuum Advisory, LLC	N/A	—	34	-34	-100%	$374	—	—	—
Quarry LP	N/A	—	17	-17	-100%	$187	—	—	—
Hollencrest Capital Management	N/A	—	10	-10	-100%	$110	—	—	—
NewEdge Advisors, LLC	N/A	—	0	0	—	$0	—	—	—

Showing 77 of 77 institutions