QMCO

Quantum Corp
Information TechnologyUSCUSIP 747906600◍ Confluence graph
Tracked 13F Holders
41
-19 QoQ
13F Value (tracked)
$25.7M
Insider Net · 180d
-$85K
0↑ 3↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)14 adding · 3 trimming
Insider net (180d)-$85K

Who owns QMCO?

41 tracked 13F filers

41 tracked 13F filers disclose a position in QMCO as of the latest SEC 13F filings, a combined $25.7M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
#FundPosition valueSharesLast moveAs ofHistory
1ASHFORD CAPITAL MANAGEMENT INC
$10.6M
1.0M
New
+1.0M sh
Q2 2026
2VANGUARD CAPITAL MANAGEMENT LLC
$2.6M
539K
First observed position
No prior filed position
Q1 2026
3Manatuck Hill Partners, LLC
$3.9M
350K
New
+350K sh
Q2 2026
4BlackRock, Inc.
$1.0M
218K
−1.4%
Reduced · −3K sh
Q1 2026
5GEODE CAPITAL MANAGEMENT, LLC
$1.8M
165K
+3.4%
Added · +5K sh
Q2 2026
6Walleye Capital LLC
$1.3M
120K
New
+120K sh
Q2 2026
7UBS Group AG
$471K
99K
−40%
Reduced · −67K sh
Q1 2026
8VANGUARD FIDUCIARY TRUST CO
$381K
80K
First observed position
No prior filed position
Q1 2026
9STATE STREET CORP
$835K
76K
+4.3%
Added · +3K sh
Q2 2026
10Man Group plc
$755K
69K
New
+69K sh
Q2 2026
11Informed Momentum Co LLC
$713K
65K
New
+65K sh
Q2 2026
12MARSHALL WACE, LLP
$178K
38K
+73%
Added · +16K sh
Q1 2026
13NORTHERN TRUST CORP
$137K
29K
Held
Q1 2026
14LPL Financial LLC
$117K
25K
+34%
Added · +6K sh
Q1 2026
15PRICE T ROWE ASSOCIATES INC /MD/
$104K
22K
+37%
Added · +6K sh
Q1 2026
16BANK OF AMERICA CORP /DE/
$97K
20K
−0.2%
Reduced · −50 sh
Q1 2026
17BRIDGEWAY CAPITAL MANAGEMENT, LLC
$77K
16K
New
+16K sh
Q1 2026
18MORGAN STANLEY
$72K
15K
+252%
Added · +11K sh
Q1 2026
19Kovack Advisors, Inc.
$147K
13K
+7.6%
Added · +950 sh
Q2 2026
20BARCLAYS PLC
$59K
12K
−12%
Reduced · −2K sh
Q1 2026
21Schonfeld Strategic Advisors LLC
$133K
12K
New
+12K sh
Q2 2026
22XTX Topco Ltd
$54K
11K
−5.2%
Reduced · −627 sh
Q1 2026
23FLAGSHIP HARBOR ADVISORS, LLC
$121K
11K
−36%
Reduced · −6K sh
Q2 2026
24Vanguard Global Advisers, LLC
$29K
6K
First observed position
No prior filed position
Q1 2026
25WELLS FARGO & COMPANY/MN
$20K
4K
+17%
Added · +600 sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is QMCO being bought or sold by institutions?

Last quarter, 9 funds opened a new position in QMCO and 5 added to an existing one, while 3 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
9
funds
Added
5
funds
Reduced
3
funds
Exited
0
funds

Funds that own QMCO also own

CompanyCo-held byCombined value
NVIDIA CORPNVDA18 funds$72.6B
APPLE INCAAPL18 funds$57.5B
MICROSOFT CORPMSFT18 funds$48.0B
AMAZON.COM INCAMZN18 funds$30.5B
BROADCOM INCAVGO18 funds$29.0B
META PLATFORMS INC-CLASS AMETA18 funds$20.7B
ELI LILLY & COLLY18 funds$14.4B
CHEVRON CORPCVX18 funds$5.9B
BANK OF AMERICA CORPBAC18 funds$5.7B
BERKSHIRE HATHAWAY INC-CL BBRK/B18 funds$5.3B
JOHNSON & JOHNSONJNJ18 funds$5.1B
MERCK & CO. INC.MRK18 funds$3.7B

Ranked by how many of QMCO's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$85K
3 insiders
Net
-$85K
4 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Aug 3, 2026Craythorne AnthonyChief Revenue OfficerSell (S)1K$16K
Jul 2, 2026Nash Laura A.Chief Accounting OfficerSell (S)260$3K
Jul 2, 2026Meyrath HuguesPresident & CEO, DirectorSell (S)6K$65K
Apr 2, 2026Nash Laura A.Chief Accounting OfficerSell (S)109$593
Oct 2, 2025Meyrath HuguesPresident & CEO, DirectorSell (S)3K$32K
Oct 2, 2025Nash Laura A.Chief Accounting OfficerSell (S)611$7K
Oct 1, 2025Nash Laura A.Chief Accounting OfficerSell (S)118$1K
Sep 12, 2025Nash Laura A.Chief Accounting OfficerSell (S)284$2K
Apr 21, 2025Cabrera Brian ESVP Chief Admin Ofcr & SecySell (S)1K$10K
Apr 21, 2025Lerner James JPresident & CEO, DirectorSell (S)3K$27K
Apr 21, 2025Moorehead Lewis W.Chief Accounting OfficerSell (S)179$2K
Apr 15, 2025PACIFIC INVESTMENT MANAGEMENT CO LLC10% OwnerSell (S)962K$9.9M

Institutional ownership over time

15 funds-9 since Q3 2024
02040Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $20.3M

Recent filings

15 shown

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Connected entities for QMCO

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Ask your agent what changed in QMCO

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/QMCO/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for QMCO.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for QMCO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.