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
Q2 		$48.6K Sell
13,436
-32
-0.2% -$151 ﹤0.01% 1081
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 $828M AUM 37.72% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
PTP
Platform Technology Partners New York $611M AUM 25.5% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
SPIA
Steward Partners Investment Advisory New York $19.6B AUM 29.84% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
Mariner
Mariner Overland Park, Kansas $95.2B AUM 32.92% 1-Year Est. Return
NS
NBC Securities Birmingham, Alabama $1.48B AUM 31.07% 1-Year Est. Return
Osaic Holdings
Osaic Holdings Scottsdale, Arizona $85.1B AUM 27.35% 1-Year Est. Return
GRP
Global Retirement Partners San Rafael, California $6.54B AUM

Marex Group's QNTM Position: Q2 2026 in Review

Marex Group reduced its Quantum Biopharma Class B Subordinate Voting Shares (QNTM) stake by 0.24% in Q2 2026, selling an estimated $151 and leaving 13,436 shares worth $48.6K. The position accounts for ﹤0.01% of the portfolio, ranked #1081.

Marex Group first reported a position in QNTM in Q3 2025 and has held it in 4 quarters since. The position peaked at $98.1K in Q4 2025. 26 funds tracked by Wall St. Rank hold QNTM as of Q2 2026.

  • Marex Group held 13,436 shares of Quantum Biopharma Class B Subordinate Voting Shares worth $48.6K as of Q2 2026.
  • Marex Group sold 32 Quantum Biopharma Class B Subordinate Voting Shares shares in Q2 2026, an estimated $151.
  • Quantum Biopharma Class B Subordinate Voting Shares made up ﹤0.01% of Marex Group's portfolio in Q2 2026, its #1081 holding.
  • Marex Group first reported a position in Quantum Biopharma Class B Subordinate Voting Shares in Q3 2025 and has held it in 4 quarters since.
  • Marex Group's Quantum Biopharma Class B Subordinate Voting Shares position peaked at $98.1K in Q4 2025.
  • 26 funds tracked by Wall St. Rank held Quantum Biopharma Class B Subordinate Voting Shares as of Q2 2026.

Based on Marex Group's 13F filing for Q2 2026, filed 14 Aug 2026.