Jane Street’s Syndax Pharmaceuticals SNDX Stock Holding History

Jane Street’s Portfolio SNDX Stock Details SNDX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$7.84M	Sell	335,531 -413,389	-55%	-$8.98M	﹤0.01%	2848
2025 Q4	$15.7M	Buy	748,920 +10,654	+1%	+$186K	﹤0.01%	1825
2025 Q3	$11.4M	Buy	738,266 +570,773	+341%	+$7.47M	﹤0.01%	2256
2025 Q2	$1.57M	Buy	167,493 +75,277	+82%	+$829K	﹤0.01%	4819
2025 Q1	$1.13M	Buy	92,216 +79,468	+623%	+$1.12M	﹤0.01%	5337
2024 Q4	$169K	Sell	12,748 -120,793	-90%	-$2.07M	﹤0.01%	8518
2024 Q3	$2.57M	Sell	133,541 -19,770	-13%	-$408K	﹤0.01%	3986
2024 Q2	$3.15M	Buy	153,311 +39,783	+35%	+$833K	﹤0.01%	3738
2024 Q1	$2.7M	Buy	113,528 +6,462	+6%	+$144K	﹤0.01%	3581
2023 Q4	$2.31M	Sell	107,066 -43,065	-29%	-$662K	﹤0.01%	4080
2023 Q3	$2.18M	Buy	150,131 +108,546	+261%	+$2.05M	﹤0.01%	3906
2023 Q2	$870K	Sell	41,585 -21,802	-34%	-$454K	﹤0.01%	5445
2023 Q1	$1.34M	Buy	63,387 +44,727	+240%	+$1.11M	﹤0.01%	4483
2022 Q4	$475K	Buy	+18,660	New	+$435K	﹤0.01%	6224
2022 Q1	–	Sell	-21,778	Closed	-$477K	–	10973
2021 Q4	$477K	Buy	+21,778	New	+$402K	﹤0.01%	7354
2021 Q2	–	Sell	-19,033	Closed	-$425K	–	10357
2021 Q1	$425K	Sell	19,033 -33,813	-64%	-$764K	﹤0.01%	7085
2020 Q4	$1.18M	Buy	+52,846	New	+$1.1M	﹤0.01%	4392
2020 Q3	–	Sell	-36,575	Closed	-$541K	–	7861
2020 Q2	$541K	Buy	+36,575	New	+$557K	﹤0.01%	4971

Other funds holding SNDX

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

KCM

Kynam Capital Management Princeton, New Jersey $1.62B AUM 138.67% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return

Eversept Partners New York $1.9B AUM 121.13% 1-Year Est. Return

KCM

Kingdon Capital Management New York $911M AUM 51.11% 1-Year Est. Return

HRCM

Hood River Capital Management Palm Beach Gardens, Florida $9.98B AUM 145.42% 1-Year Est. Return

Jane Street's SNDX Position: Q1 2026 in Review

Jane Street reduced its Syndax Pharmaceuticals (SNDX) stake by 55% in Q1 2026, selling an estimated $8.98M and leaving 335,531 shares worth $7.84M. The position accounts for ﹤0.01% of the portfolio, ranked #2848.

Jane Street first reported a position in SNDX in Q2 2020 and has held it in 18 quarters since. The position peaked at $15.7M in Q4 2025. 246 funds tracked by Wall St. Rank hold SNDX as of Q1 2026.

Jane Street held 335,531 shares of Syndax Pharmaceuticals worth $7.84M as of Q1 2026.
Jane Street sold 413,389 Syndax Pharmaceuticals shares in Q1 2026, an estimated $8.98M.
Syndax Pharmaceuticals made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #2848 holding.
Jane Street first reported a position in Syndax Pharmaceuticals in Q2 2020 and has held it in 18 quarters since.
Jane Street's Syndax Pharmaceuticals position peaked at $15.7M in Q4 2025.
246 funds tracked by Wall St. Rank held Syndax Pharmaceuticals as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.