Rockefeller Capital Management’s Quantum Biopharma Class B Subordinate Voting Shares QNTM Stock Holding History

Rockefeller Capital Management’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	$109	Hold	30	–	–	﹤0.01%	4686
2026 Q1	$145	Hold	30	–	–	﹤0.01%	4620
2025 Q4	$219	Hold	30	–	–	﹤0.01%	4584
2025 Q3	$492	Buy	+30	New	+$592	﹤0.01%	4270
2023 Q1	–	Sell	-62	Closed	-$3K	–	3952
2022 Q4	$3K	Hold	62	–	–	﹤0.01%	3503
2022 Q3	$3K	Hold	62	–	–	﹤0.01%	3524
2022 Q2	$3K	Hold	62	–	–	﹤0.01%	3712
2022 Q1	$3K	Hold	62	–	–	﹤0.01%	3538
2021 Q4	$4K	Buy	+62	New	+$5.38K	﹤0.01%	3385

Other funds holding QNTM

AdvisorShares Investments Bethesda, Maryland $828M AUM 37.72% 1-Year Est. Return

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 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 Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Marex Group London $23.6B AUM 57.16% 1-Year Est. Return

Mariner Overland Park, Kansas $95.2B AUM 32.92% 1-Year Est. Return

NBC Securities Birmingham, Alabama $1.48B AUM 31.07% 1-Year Est. Return

Osaic Holdings Scottsdale, Arizona $85.1B AUM 27.35% 1-Year Est. Return

Rockefeller Capital Management's QNTM Position: Q2 2026 in Review

Rockefeller Capital Management held its Quantum Biopharma Class B Subordinate Voting Shares (QNTM) position steady in Q2 2026 at 30 shares worth $109. The position accounts for ﹤0.01% of the portfolio, ranked #4686.

Rockefeller Capital Management first reported a position in QNTM in Q4 2021 and has held it in 9 quarters since. The position peaked at $4K in Q4 2021. 26 funds tracked by Wall St. Rank hold QNTM as of Q2 2026.

Rockefeller Capital Management held 30 shares of Quantum Biopharma Class B Subordinate Voting Shares worth $109 as of Q2 2026.
Rockefeller Capital Management left its Quantum Biopharma Class B Subordinate Voting Shares share count unchanged in Q2 2026.
Quantum Biopharma Class B Subordinate Voting Shares made up ﹤0.01% of Rockefeller Capital Management's portfolio in Q2 2026, its #4686 holding.
Rockefeller Capital Management first reported a position in Quantum Biopharma Class B Subordinate Voting Shares in Q4 2021 and has held it in 9 quarters since.
Rockefeller Capital Management's Quantum Biopharma Class B Subordinate Voting Shares position peaked at $4K in Q4 2021.
26 funds tracked by Wall St. Rank held Quantum Biopharma Class B Subordinate Voting Shares as of Q2 2026.

Based on Rockefeller Capital Management's 13F filing for Q2 2026, filed 13 Aug 2026.