MG
QNTM

Marex Group’s Quantum Biopharma Class B Subordinate Voting Shares QNTM Stock Holding History

Marex Group’s Portfolio QNTM Stock Details QNTM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$65K Buy
13,468
+32
+0.2% +$144 ﹤0.01% 960
2025
Q4 		$98.1K Hold
13,436
– – ﹤0.01% 910
2025
Q3 		$3.38K Buy
+13,436
New +$265K ﹤0.01% 831

Other funds holding QNTM

AI
AdvisorShares Investments Bethesda, Maryland $549M AUM 32.58% 1-Year Est. Return
PTP
Platform Technology Partners New York $611M AUM 25.5% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
VF
Virtu Financial New York $2.41B AUM 48.35% 1-Year Est. Return
Mariner
Mariner Overland Park, Kansas $85.7B AUM 24.21% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Osaic Holdings
Osaic Holdings Scottsdale, Arizona $68.3B AUM 20.5% 1-Year Est. Return
SPIA
Steward Partners Investment Advisory New York $19.6B AUM 22.89% 1-Year Est. Return
AUB
Atlantic Union Bankshares Glen Allen, Virginia $5.21B AUM 19.46% 1-Year Est. Return

Marex Group's QNTM Position: Q1 2026 in Review

Marex Group increased its Quantum Biopharma Class B Subordinate Voting Shares (QNTM) stake by 0.24% in Q1 2026, buying an estimated $144 and bringing the position to 13,468 shares worth $65K. The position accounts for ﹤0.01% of the portfolio, ranked #960.

Marex Group first reported a position in QNTM in Q3 2025 and has held it in 3 quarters since. The position peaked at $98.1K in Q4 2025. 25 funds tracked by Wall St. Rank hold QNTM as of Q1 2026.

  • Marex Group held 13,468 shares of Quantum Biopharma Class B Subordinate Voting Shares worth $65K as of Q1 2026.
  • Marex Group bought 32 Quantum Biopharma Class B Subordinate Voting Shares shares in Q1 2026, an estimated $144.
  • Quantum Biopharma Class B Subordinate Voting Shares made up ﹤0.01% of Marex Group's portfolio in Q1 2026, its #960 holding.
  • Marex Group first reported a position in Quantum Biopharma Class B Subordinate Voting Shares in Q3 2025 and has held it in 3 quarters since.
  • Marex Group's Quantum Biopharma Class B Subordinate Voting Shares position peaked at $98.1K in Q4 2025.
  • 25 funds tracked by Wall St. Rank held Quantum Biopharma Class B Subordinate Voting Shares as of Q1 2026.

Based on Marex Group's 13F filing for Q1 2026, filed 13 May 2026.