Quantum Ownership | Who Owns Quantum?

Overview Forecast RevenueFinancials Chart Transcripts

Quantum Ownership Summary

Quantum is owned by 9.41% institutional investors, 2.56% insiders, and 88.03% retail investors. Vanguard group is the largest institutional shareholder, holding 3.30% of QMCO shares. Neuberger Berman Intrinsic Value I is the top mutual fund, with 7.76% of its assets in Quantum shares.

QMCO Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Quantum	9.41%	2.56%	88.03%
Sector	Technology Stocks	50.69%	12.56%	36.75%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	303.60K	3.30%	$3.01M
Ubs group	162.60K	1.77%	$1.61M
Blackrock funding, inc. /de	162.34K	1.77%	$1.61M
Blackrock	916.90K	0.96%	$375.11K
Geode capital management	79.43K	0.86%	$788.16K
Quest partners	35.54K	0.39%	$352.52K
State street	27.35K	0.30%	$271.28K
Royal bank of canada	22.71K	0.25%	$225.00K
Flagship harbor advisors	22.71K	0.25%	$225.28K
Cibc private wealth group	10.40K	0.21%	$103.73K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Riverview capital advisers	10.00K	0.03%	$99.20K
Quest partners	35.54K	0.02%	$352.52K
Flagship harbor advisors	22.71K	0.01%	$225.28K
Fny investment advisers	667.00	0.00%	$6.00K
Hollencrest capital management	6.56K	0.00%	$65.08K
Sbi securities	5.97K	0.00%	$59.22K
Bridgeway capital management	84.80K	0.00%	$34.69K
Ubs group	162.60K	0.00%	$1.61M
Cibc private wealth group	10.40K	0.00%	$103.73K
Geode capital management	79.43K	0.00%	$788.16K

Top Buyers

Holder	Shares	% Assets	Change
Ubs group	162.60K	0.00%	102.38K
Vanguard group	303.60K	-	46.92K
Quest partners	35.54K	0.02%	30.83K
Flagship harbor advisors	22.71K	0.01%	22.71K
Blackrock funding, inc. /de	162.34K	-	21.03K

Top Sellers

Holder	Shares	% Assets	Change
Neuberger berman group	-	-	-14.31M
Long focus capital management	-	-	-9.17M
Tcw group	-	-	-2.12M
Pacific ridge capital partners	-	-	-1.26M
Herald investment management	-	-	-1.00M

New Positions

Holder	Shares	% Assets	Change	Value
Flagship harbor advisors	22.71K	0.01%	22.71K	$225.28K
Riverview capital advisers	10.00K	0.03%	10.00K	$99.20K
Simplex trading	3.90K	-	3.90K	$1.00K
Fny investment advisers	667.00	0.00%	667.00	$6.00K
Physician wealth advisors	102.00	0.00%	102.00	$1.01K

Sold Out

Holder	Change
Cornerstone planning group	-5.00
Fmr	-15.00
National bank of canada /fi/	-20.00
Continuum advisory	-34.00
Motco	-37.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	26	-23.53%	864,150	-2.28%	9	2.90%	16	-27.27%	3	-57.14%
Jun 30, 2025	34	17.24%	884,330	-47.66%	18	1.52%	21	-	7	75.00%
Mar 31, 2025	29	-38.30%	1,689,433	-6.29%	34	2.55%	21	-34.38%	4	-
Dec 31, 2024	1	-	56,000	-	1	-	1	-	-	-
Jun 30, 2024	51	-17.74%	47,929,627	-2.18%	50	1.83%	22	-	10	-33.33%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Neuberger Berman Intrinsic Value I	371.91K	7.76%	-1.00
Vanguard US Total Market Shares ETF	166.09K	2.85%	-
Vanguard Total Stock Mkt Idx Inv	162.54K	2.34%	-3.55K
Neuberger Berman Small Cap Intrinsic Val	108.60K	2.27%	1.00
Pacific Ridge Capital Ptnrs Micro Cp Val	1.17M	1.22%	-67.04K
Vanguard Institutional Extnd Mkt Idx Tr	73.12K	1.05%	-13.76K
Herald Ord	1.00M	1.04%	-
Neuberger Berman US SCp Intrs Val $I Acc	35.03K	0.60%	-
Acuitas US Microcap Strategy	307.60K	0.32%	-1.79K
Morgan Stanley Pathway Sm-Mid Cap Eq	15.33K	0.32%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Oct 02, 2025	Meyrath Hugues	President & CEO	Sell	$32.31K
Oct 02, 2025	Nash Laura A.	Chief Accounting Officer	Sell	$6.64K
Oct 01, 2025	Nash Laura A.	Chief Accounting Officer	Sell	$1.17K
Sep 12, 2025	Nash Laura A.	Chief Accounting Officer	Sell	$2.10K
Apr 21, 2025	Moorehead Lewis W.	Chief Accounting Officer	Sell	$1.73K

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	3
2025 Q3	-	1
2025 Q2	-	5
2025 Q1	-	11
2024 Q4	-	11

QMCO Ownership FAQ

Who owns the most shares of Quantum?

Quantum’s largest shareholders are Vanguard group (303.6K shares, 3.30%), Ubs group (162.6K shares, 1.77%), and Blackrock funding, inc. /de (162.34K shares, 1.77%). Together, they hold 6.84% of Quantum’s total shares outstanding.

Does Blackrock own Quantum?

Yes, BlackRock owns 0.96% of Quantum, totaling 916.9K shares as of Jun 2024. This represents 0% of BlackRock's total assets, with a market value of 375.1K$. In the last quarter, BlackRock decreased its holdings by -79.957K shares, a -8.02% change.

Who is Quantum’s biggest shareholder by percentage of total assets invested?

Riverview capital advisers is Quantum’s biggest shareholder by percentage of total assets invested, with 0.03% of its assets in 10K Quantum shares, valued at 99.2K$.

Who is the top mutual fund holder of Quantum shares?

Neuberger Berman Intrinsic Value I is the top mutual fund holder of Quantum shares, with 7.76% of its total shares outstanding invested in 371.91K Quantum shares.

Try Tickergate Pro Free

Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)

Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis

Discover trending investment themes
Find your next best investment
Research stocks using tools