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 		$1.05M Sell
44,800
-14,300
-24% -$311K ﹤0.01% 2454
2025
Q4 		$1.24M Sell
59,100
-11,000
-16% -$192K ﹤0.01% 2419
2025
Q3 		$1.08M Buy
70,100
+35,700
+104% +$467K ﹤0.01% 2974
2025
Q2 		$322K Buy
34,400
+12,400
+56% +$136K ﹤0.01% 3988
2025
Q1 		$270K Buy
22,000
+21,600
+5,400% +$305K ﹤0.01% 4018
2024
Q4 		$5K Sell
400
-8,700
-96% -$149K ﹤0.01% 7656
2024
Q3 		$175K Buy
9,100
+2,000
+28% +$41.3K ﹤0.01% 4652
2024
Q2 		$145K Sell
7,100
-9,300
-57% -$195K ﹤0.01% 4971
2024
Q1 		$390K Sell
16,400
-131,800
-89% -$2.94M ﹤0.01% 4096
2023
Q4 		$3.2M Buy
148,200
+36,900
+33% +$567K ﹤0.01% 1940
2023
Q3 		$1.62M Buy
+111,300
New +$2.11M ﹤0.01% 2263
2023
Q1 		– Sell
-100
Closed -$2K – 10048
2022
Q4 		$2K Hold
100
– – ﹤0.01% 8653
2022
Q3 		$2K Buy
+100
New +$2.24K ﹤0.01% 9359
2022
Q2 		– Sell
-1,100
Closed -$19K – 11010
2022
Q1 		$19K Buy
1,100
+900
+450% +$15.2K ﹤0.01% 8313
2021
Q4 		$4K Sell
200
-100
-33% -$1.85K ﹤0.01% 9710
2021
Q3 		$5K Hold
300
– – ﹤0.01% 9292
2021
Q2 		$5K Buy
300
+294
+4,900% +$5.38K ﹤0.01% 9478
2021
Q1 		$13K Sell
6
-6
-50% -$136 ﹤0.01% 7763
2020
Q4 		$26K Buy
+12
New +$249 ﹤0.01% 6797
2020
Q3 		– Sell
-61
Closed -$90K – 8453
2020
Q2 		$90K Buy
61
+19
+45% +$289 ﹤0.01% 4899
2020
Q1 		$46K Sell
42
-19
-31% -$178 ﹤0.01% 5222
2019
Q4 		$53K Buy
61
+53
+663% +$389 ﹤0.01% 5132
2019
Q3 		$5K Sell
8
-19
-70% -$173 ﹤0.01% 6627
2019
Q2 		$25K Sell
27
-25
-48% -$182 ﹤0.01% 5443
2019
Q1 		$27K Buy
52
+28
+117% +$160 ﹤0.01% 5501
2018
Q4 		$10K Sell
24
-16
-40% -$88 ﹤0.01% 5858
2018
Q3 		$32K Buy
40
+38
+1,900% +$271 ﹤0.01% 5592
2018
Q2 		$1K Buy
+2
New +$20 ﹤0.01% 7192

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.