Simplex Trading
SNDX icon

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 		$273K Sell
11,700
-45,300
-79% -$984K ﹤0.01% 3925
2025
Q4 		$1.2M Sell
57,000
-60,300
-51% -$1.05M ﹤0.01% 2456
2025
Q3 		$1.8M Buy
117,300
+71,700
+157% +$938K ﹤0.01% 2433
2025
Q2 		$427K Sell
45,600
-19,400
-30% -$214K ﹤0.01% 3665
2025
Q1 		$798K Buy
65,000
+3,500
+6% +$49.4K ﹤0.01% 2927
2024
Q4 		$813K Buy
61,500
+53,100
+632% +$909K ﹤0.01% 3049
2024
Q3 		$161K Buy
8,400
+3,600
+75% +$74.4K ﹤0.01% 4739
2024
Q2 		$98K Sell
4,800
-38,000
-89% -$795K ﹤0.01% 5403
2024
Q1 		$1.02M Sell
42,800
-101,100
-70% -$2.25M ﹤0.01% 3101
2023
Q4 		$3.11M Sell
143,900
-55,000
-28% -$845K ﹤0.01% 1975
2023
Q3 		$2.89M Buy
198,900
+197,300
+12,331% +$3.73M ﹤0.01% 1775
2023
Q2 		$33K Buy
1,600
+1,100
+220% +$22.9K ﹤0.01% 6268
2023
Q1 		$10K Hold
500
– – ﹤0.01% 7568
2022
Q4 		$12K Sell
500
-2,900
-85% -$67.6K ﹤0.01% 7394
2022
Q3 		$81K Buy
3,400
+600
+21% +$13.5K ﹤0.01% 5810
2022
Q2 		$53K Buy
2,800
+2,200
+367% +$36.6K ﹤0.01% 6421
2022
Q1 		$10K Buy
600
+500
+500% +$8.42K ﹤0.01% 8896
2021
Q4 		$2K Sell
100
-3,400
-97% -$62.8K ﹤0.01% 10056
2021
Q3 		$62K Hold
3,500
– – ﹤0.01% 7267
2021
Q2 		$60K Buy
3,500
+3,427
+4,695% +$62.8K ﹤0.01% 7434
2021
Q1 		$163K Buy
73
+69
+1,725% +$1.56K ﹤0.01% 5053
2020
Q4 		$8K Buy
4
+2
+100% +$41 ﹤0.01% 7545
2020
Q3 		$2K Sell
2
-51
-96% -$777 ﹤0.01% 7457
2020
Q2 		$78K Sell
53
-217
-80% -$3.31K ﹤0.01% 5067
2020
Q1 		$296K Buy
270
+113
+72% +$1.06K ﹤0.01% 3169
2019
Q4 		$137K Buy
157
+28
+22% +$206 ﹤0.01% 4160
2019
Q3 		$96K Buy
129
+85
+193% +$774 ﹤0.01% 4361
2019
Q2 		$40K Buy
44
+35
+389% +$255 ﹤0.01% 5054
2019
Q1 		$4K Buy
9
+3
+50% +$17 ﹤0.01% 6585
2018
Q4 		$2K Sell
6
-142
-96% -$779 ﹤0.01% 6607
2018
Q3 		$119K Buy
+148
New +$1.05K ﹤0.01% 4252
2018
Q2 		– Sell
-104
Closed -$76K – 7859
2018
Q1 		$76K Buy
+104
New +$1.1K ﹤0.01% 2027

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.