Simplex Trading
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Simplex Trading’s Syndax Pharmaceuticals SNDX Stock Holding History

Simplex Trading’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 		$486K Sell
20,825
-4,835
-19% -$105K ﹤0.01% 3299
2025
Q4 		$539K Buy
+25,660
New +$448K ﹤0.01% 3234
2025
Q3 		– Sell
-19,921
Closed -$261K – 9985
2025
Q2 		$186K Buy
19,921
+18,264
+1,102% +$201K ﹤0.01% 4589
2025
Q1 		$20K Buy
+1,657
New +$23.4K ﹤0.01% 6595
2024
Q4 		– Sell
-15,980
Closed -$273K – 9552
2024
Q3 		$307K Buy
15,980
+10,107
+172% +$209K ﹤0.01% 4105
2024
Q2 		$120K Sell
5,873
-5,756
-49% -$120K ﹤0.01% 5189
2024
Q1 		$276K Sell
11,629
-52,401
-82% -$1.17M ﹤0.01% 4499
2023
Q4 		$1.38M Buy
+64,030
New +$984K ﹤0.01% 2698
2023
Q1 		– Sell
-212
Closed -$5.27K – 10047
2022
Q4 		$5K Buy
+212
New +$4.95K ﹤0.01% 8101
2022
Q2 		– Sell
-951
Closed -$15.8K – 11009
2022
Q1 		$16K Sell
951
-1,484
-61% -$25K ﹤0.01% 8484
2021
Q4 		$53K Buy
+2,435
New +$45K ﹤0.01% 7198
2021
Q1 		– Sell
-1,352
Closed -$30.5K – 9934
2020
Q4 		$30K Buy
+1,352
New +$28K ﹤0.01% 6672
2020
Q3 		– Sell
-46,663
Closed -$711K – 8452
2020
Q2 		$691K Buy
46,663
+26,617
+133% +$405K ﹤0.01% 2509
2020
Q1 		$219K Sell
20,046
-20,780
-51% -$195K ﹤0.01% 3487
2019
Q4 		$358K Buy
+40,826
New +$300K ﹤0.01% 3084
2019
Q3 		– Sell
-7,544
Closed -$68.7K – 7840
2019
Q2 		$70K Buy
7,544
+4,114
+120% +$30K ﹤0.01% 4542
2019
Q1 		$18K Buy
3,430
+1,886
+122% +$10.8K ﹤0.01% 5790
2018
Q4 		$6K Sell
1,544
-16,894
-92% -$92.6K ﹤0.01% 6152
2018
Q3 		$148K Buy
18,438
+17,941
+3,610% +$128K ﹤0.01% 3997
2018
Q2 		$3K Buy
+497
New +$4.88K ﹤0.01% 6950

Other funds holding SNDX

BlackRock
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
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
DM
Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return
EP
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

Simplex Trading's SNDX Position: Q1 2026 in Review

Simplex Trading reduced its Syndax Pharmaceuticals (SNDX) stake by 19% in Q1 2026, selling an estimated $105K and leaving 20,825 shares worth $486K. The position accounts for ﹤0.01% of the portfolio, ranked #3299.

Simplex Trading first reported a position in SNDX in Q2 2018 and has held it in 20 quarters since. The position peaked at $1.38M in Q4 2023. 246 funds tracked by Wall St. Rank hold SNDX as of Q1 2026.

  • Simplex Trading held 20,825 shares of Syndax Pharmaceuticals worth $486K as of Q1 2026.
  • Simplex Trading sold 4,835 Syndax Pharmaceuticals shares in Q1 2026, an estimated $105K.
  • Syndax Pharmaceuticals made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #3299 holding.
  • Simplex Trading first reported a position in Syndax Pharmaceuticals in Q2 2018 and has held it in 20 quarters since.
  • Simplex Trading's Syndax Pharmaceuticals position peaked at $1.38M in Q4 2023.
  • 246 funds tracked by Wall St. Rank held Syndax Pharmaceuticals as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.