Citigroup’s Aptorum Group APM Stock Holding History

Citigroup’s Portfolio APM Stock Details APM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$5K	Buy	+6,398	New	+$5.67K	﹤0.01%	5310
2025 Q4	–	Sell	-277	Closed	-$560	–	6047
2025 Q3	$560	Sell	277 -718	-72%	-$1.19K	﹤0.01%	5695
2025 Q2	$907	Buy	995 +976	+5,137%	+$920	﹤0.01%	5409
2025 Q1	$16	Buy	+19	New	+$22	﹤0.01%	5480

Other funds holding APM

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

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

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

SBI Securities Tokyo, Japan $4.4B AUM 74.26% 1-Year Est. Return

Citigroup's APM Position: Q2 2026 in Review

Citigroup opened a new position in Aptorum Group (APM) in Q2 2026: 6,398 shares worth $5K. The stake represents ﹤0.01% of the portfolio and ranks #5310 among its holdings. This is a return to the name: Citigroup previously reported a position in APM as recently as Q3 2025.

Citigroup first reported a position in APM in Q1 2025 and has held it in 4 quarters since. 5 funds tracked by Wall St. Rank hold APM as of Q2 2026.

Citigroup held 6,398 shares of Aptorum Group worth $5K as of Q2 2026.
Aptorum Group was a new Citigroup position in Q2 2026.
Aptorum Group made up ﹤0.01% of Citigroup's portfolio in Q2 2026, its #5310 holding.
Citigroup first reported a position in Aptorum Group in Q1 2025 and has held it in 4 quarters since.
5 funds tracked by Wall St. Rank held Aptorum Group as of Q2 2026.

Based on Citigroup's 13F filing for Q2 2026, filed 3 Aug 2026.