Jane Street’s Serina Therapeutics SER Stock Holding History

Jane Street’s Portfolio SER Stock Details SER Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$30K	Sell	15,444 -24,209	-61%	-$45.4K	﹤0.01%	11101
2026 Q1	$76.9K	Buy	+39,653	New	+$87.3K	﹤0.01%	10769
2024 Q1	–	Sell	-328	Closed	-$4.44K	–	10230
2023 Q4	$4.44K	Buy	+328	New	+$6.04K	﹤0.01%	9024
2022 Q1	–	Sell	-799	Closed	-$31K	–	11148
2021 Q4	$31K	Buy	+799	New	+$21.6K	﹤0.01%	9686
2019 Q3	–	Sell	-771	Closed	-$99K	–	5879
2019 Q2	$99K	Buy	+771	New	+$104K	﹤0.01%	4857
2019 Q1	–	Sell	-661	Closed	-$70K	–	5750
2018 Q4	$70K	Buy	+661	New	+$84K	﹤0.01%	4683

Other funds holding SER

SCM

Sio Capital Management New York $604M AUM 96.57% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Waverly Advisors Birmingham, Alabama $17.2B AUM 24.89% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Keel Point Huntsville, Alabama $1.69B AUM 20.79% 1-Year Est. Return

Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

AWE

Avidian Wealth Enterprises Houston, Texas $3.62B AUM 24.8% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

CIAM

Caitong International Asset Management Hong Kong $729M AUM 1,176.98% 1-Year Est. Return

Jane Street's SER Position: Q2 2026 in Review

Jane Street reduced its Serina Therapeutics (SER) stake by 61% in Q2 2026, selling an estimated $45.4K and leaving 15,444 shares worth $30K. The position accounts for ﹤0.01% of the portfolio, ranked #11101.

Jane Street first reported a position in SER in Q4 2018 and has held it in 6 quarters since. The position peaked at $99K in Q2 2019. 27 funds tracked by Wall St. Rank hold SER as of Q2 2026.

Jane Street held 15,444 shares of Serina Therapeutics worth $30K as of Q2 2026.
Jane Street sold 24,209 Serina Therapeutics shares in Q2 2026, an estimated $45.4K.
Serina Therapeutics made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #11101 holding.
Jane Street first reported a position in Serina Therapeutics in Q4 2018 and has held it in 6 quarters since.
Jane Street's Serina Therapeutics position peaked at $99K in Q2 2019.
27 funds tracked by Wall St. Rank held Serina Therapeutics as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.