Quantum Biopharma Ltd. Institutional Ownership | QNTM

Institutions by Trading Activity

4,489,456Shares Outstanding

254,301Shares held by institutions

$849,365Value of institutional holdings

5.66%Institutional ownership %

122.77%Shares Changed QoQ

25No. of institutional investors

Quantum Biopharma Ltd. (NASDAQ:QNTM) has 25 institutional investors that have filed 13F reports for the period ending March 2026.

These investors held 5.7% of outstanding shares in March 2026, up from 0.1% in December 2025.
They increased total shares held in Quantum Biopharma by 122.77% from last quarter, and the number of investors in QNTM increased 66.67% annually.
Of these 25 funds, 14 grew their exposure to Quantum Biopharma, 2 cut back, and 9 maintained positions.
Combined, these investors held 254.3K shares in QNTM for March 2026, up by 140.15K shares quarter on quarter, and up 184.36K shares year over year.
As of March 31, 2026, AdvisorShares Investments LLC held the largest stake in Quantum Biopharma with 108.59K shares, accounting for 2.42% of total shares outstanding.
Top purchasers of QNTM stock for the quarter ending March 2026 included AdvisorShares Investments LLC (58.96K), Platform Technology Partners (41.12K), JANE STREET GROUP, LLC (20.61K), Mariner, LLC (10.06K), UBS Group AG (5.53K).
The largest sales of QNTM for the quarter ending March 2026 came from Royal Bank Of Canada (36), Rockefeller Capital Management L.P. (30).
Business Quant data shows the 10 biggest positions in Quantum Biopharma as of March 2026 are held by AdvisorShares Investments LLC (108.59K), Platform Technology Partners (41.12K), JANE STREET GROUP, LLC (31.5K), CITADEL ADVISORS LLC (15.86K), Marex Group plc (13.47K), Virtu Financial LLC (12.28K), Mariner, LLC (10.06K), UBS Group AG (7.24K), OSAIC HOLDINGS, INC. (6.38K), Steward Partners Investment Advisory, LLC (4.38K).

254,301 Total Shares Held

Rows:

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
AdvisorShares Investments LLC	31 Mar, 2026	108,591	58,958	118.79%	$524,495.00
Platform Technology Partners	31 Mar, 2026	41,116	41,116	0.00%	$198,590.00
JANE STREET GROUP, LLC	31 Mar, 2026	31,501	20,609	189.21%	$152,149.00
CITADEL ADVISORS LLC	31 Mar, 2026	15,863	0	0.00%	$76,618.00
Marex Group plc	31 Mar, 2026	13,468	32	0.24%	$65,050.00
Virtu Financial LLC	31 Mar, 2026	12,282	1,876	18.03%	$59.00
Mariner, LLC	31 Mar, 2026	10,059	10,059	0.00%	$48,553.00
UBS Group AG	31 Mar, 2026	7,237	5,527	323.22%	$34,955.00
OSAIC HOLDINGS, INC.	31 Mar, 2026	6,375	1,105	20.97%	$30,790.00
Steward Partners Investment Advisory, LLC	31 Mar, 2026	4,381	0	0.00%	$21,160.00
Atlantic Union Bankshares Corp	31 Mar, 2026	1,000	0	0.00%	$4,830.00
Farther Finance Advisors, LLC	31 Mar, 2026	1,000	0	0.00%	$4,410.00
JONES FINANCIAL COMPANIES LLLP	31 Mar, 2026	700	700	0.00%	$3,339.00
Cetera Trust Company, N.A	31 Mar, 2026	250	0	0.00%	$1,208.00
Wells Fargo & Company/Mn	31 Mar, 2026	100	100	0.00%	$477.00
Federation des caisses Desjardins du Quebec	31 Mar, 2026	93	0	0.00%	$369.00
SBI Securities Co., Ltd.	31 Mar, 2026	75	20	36.36%	$362.00
Tower Research Capital LLC (TRC)	31 Mar, 2026	71	71	0.00%	$343.00
GROUP ONE TRADING LLC	31 Mar, 2026	34	0	0.00%	$164.00
Rockefeller Capital Management L.P.	31 Mar, 2026	30	-30	-50.00%	$145.00

1 - 20 of 25