Quantum Biopharma QNTM Institutional Ownership

NASDAQ QNTM

$3.58 +0.29 (+8.81%)

At close: Sep 9, 2026 · 4:00 PM EDT

Institutions by Trading Activity

27 Institutions

Increased 13 48.1%

Unchanged 10 37.0%

Reduced 4 14.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

12.63%

▲+4.89 pp QoQ

Shares Held by Institutions

415.12K

of 3.29Mn outstanding

▲+71.59% QoQ

Shares Outstanding

3.29Mn

2.87Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+2 vs prior quarter

Net Shares Added (QoQ)

+173.19K

accumulated since last quarter

Value of Holdings

$1.34Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Quantum Biopharma Ltd. (NASDAQ:QNTM) has 27 institutional investors with active 13F positions as of June 2026.

Their combined ownership stood at 12.6% of outstanding shares in June 2026, up from 7.7% in March 2026.
Their total shares held in QNTM increased 71.59% from the prior quarter, while the number of investors in Quantum Biopharma increased 58.82% year over year.
Of these 27 funds, 13 grew their exposure to Quantum Biopharma, 4 cut back, and 10 maintained positions.
In total, institutional investors held 415.12K shares in Quantum Biopharma as of June 2026, up by 173.19K shares quarter on quarter, and up 298.64K shares year over year.
AdvisorShares Investments LLC is the top holder of Quantum Biopharma as of June 30, 2026, with 203.56K shares representing 6.2% of outstanding stock.
The largest buyers of Quantum Biopharma for the quarter ending June 2026 were AdvisorShares Investments LLC (94.97K), UBS Group AG (26.17K), Steward Partners Investment Advisory, LLC (23.5K), JANE STREET GROUP, LLC (16.85K), LANARK FINANCIAL, INC. (7.0K).
The largest sellers of Quantum Biopharma for the quarter ending June 2026 were OSAIC HOLDINGS, INC. (80), Mariner, LLC (59), Marex Group Ltd (32), TD Waterhouse Canada Inc. (14).
Quantum Biopharma's 10 largest shareholders as of June 2026 include AdvisorShares Investments LLC (203.56K), JANE STREET GROUP, LLC (48.36K), Platform Technology Partners (41.12K), UBS Group AG (33.4K), Steward Partners Investment Advisory, LLC (27.88K), CITADEL ADVISORS LLC (15.86K), Marex Group Ltd (13.44K), Mariner, LLC (10.0K), LANARK FINANCIAL, INC. (7.0K), OSAIC HOLDINGS, INC. (6.3K) per Business Quant data.

Form 13F Holdings

27 Institutional Holders

Report period 30 Jun, 2026

Total shares held 415.12K

Of outstanding 12.63%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	AdvisorShares Investments LLC	0001425930	203,564	6.20%	▲94,973	+87.46%	$736.90K
2	JANE STREET GROUP, LLC	0001595888	48,355	1.47%	▲16,854	+53.50%	$175.05K
3	Platform Technology Partners	0001830817	41,116	1.25%	0	0.00%	$148.84K
4	UBS Group AG	0001610520	33,405	1.02%	▲26,168	+361.59%	$120.93K
5	Steward Partners Investment Advisory, LLC	0001723397	27,881	0.85%	▲23,500	+536.41%	$100.93K
6	CITADEL ADVISORS LLC	0001423053	15,863	0.48%	0	0.00%	$57.42K
7	Marex Group Ltd	0001997464	13,436	0.41%	▼32	-0.24%	$48.64K
8	Mariner, LLC	0001373442	10,000	0.30%	▼59	-0.59%	$36.20K
9	LANARK FINANCIAL, INC.	0000791540	7,000	0.21%	▲7,000	0.00%	$25.34K
10	OSAIC HOLDINGS, INC.	0001677044	6,295	0.19%	▼80	-1.25%	$22.79K
11	Global Retirement Partners, LLC	0001749744	3,000	0.09%	▲3,000	0.00%	$10.86K
12	JONES FINANCIAL COMPANIES LLLP	0000815917	1,209	0.04%	▲509	+72.71%	$4.59K
13	Atlantic Union Bankshares Corp	0000883948	1,000	0.03%	0	0.00%	$3.62K
13	Farther Finance Advisors, LLC	0001992825	1,000	0.03%	0	0.00%	$3.62K
14	Morgan Stanley	0000895421	600	0.02%	▲600	0.00%	$2.17K
15	Royal Bank Of Canada	0001000275	446	0.01%	▲427	+2,247.37%	$2.00K
16	Wells Fargo & Company/Mn	0000072971	250	0.01%	▲150	+150.00%	$907
16	Cetera Trust Company, N.A	0002005547	250	0.01%	0	0.00%	$905
17	MERCER GLOBAL ADVISORS INC /ADV	0000853758	190	0.01%	▲190	0.00%	$688
18	Federation des caisses Desjardins du Quebec	0002022297	93	0.00%	0	0.00%	$334

Showing 1 to 20 of 27 holders