Wellington Management Group
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Wellington Management Group’s Syndax Pharmaceuticals SNDX Stock Holding History

Wellington Management Group’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 		$2.89M Buy
123,586
+87,956
+247% +$1.91M ﹤0.01% 1494
2025
Q4 		$749K Sell
35,630
-2,596
-7% -$45.3K ﹤0.01% 1767
2025
Q3 		$588K Buy
38,226
+4,141
+12% +$54.2K ﹤0.01% 1863
2025
Q2 		$319K Sell
34,085
-1,877
-5% -$20.7K ﹤0.01% 1870
2025
Q1 		$442K Sell
35,962
-4,198,493
-99% -$59.2M ﹤0.01% 1839
2024
Q4 		$56M Sell
4,234,455
-751,521
-15% -$12.9M 0.01% 677
2024
Q3 		$96M Sell
4,985,976
-2,353,028
-32% -$48.6M 0.02% 544
2024
Q2 		$151M Sell
7,339,004
-97,612
-1% -$2.04M 0.03% 447
2024
Q1 		$177M Sell
7,436,616
-148,605
-2% -$3.31M 0.03% 410
2023
Q4 		$164M Sell
7,585,221
-57,225
-0.7% -$880K 0.03% 435
2023
Q3 		$111M Buy
7,642,446
+198,262
+3% +$3.75M 0.02% 495
2023
Q2 		$156M Buy
7,444,184
+440,450
+6% +$9.17M 0.03% 442
2023
Q1 		$148M Sell
7,003,734
-979,708
-12% -$24.4M 0.03% 454
2022
Q4 		$203M Buy
7,983,442
+3,596,002
+82% +$83.9M 0.04% 384
2022
Q3 		$105M Buy
4,387,440
+1,180,574
+37% +$26.5M 0.02% 503
2022
Q2 		$61.7M Buy
3,206,866
+1,372,936
+75% +$22.9M 0.01% 627
2022
Q1 		$31.9M Buy
1,833,930
+235,164
+15% +$3.96M 0.01% 891
2021
Q4 		$35M Sell
1,598,766
-78,093
-5% -$1.44M 0.01% 945
2021
Q3 		$32M Buy
1,676,859
+40,928
+3% +$682K 0.01% 948
2021
Q2 		$28.1M Sell
1,635,931
-1,339,061
-45% -$24.5M ﹤0.01% 1010
2021
Q1 		$66.5M Buy
2,974,992
+359,549
+14% +$8.12M 0.01% 728
2020
Q4 		$58.2M Sell
2,615,443
-715,125
-21% -$14.8M 0.01% 722
2020
Q3 		$49.2M Sell
3,330,568
-426,180
-11% -$6.5M 0.01% 704
2020
Q2 		$55.7M Buy
3,756,748
+757,119
+25% +$11.5M 0.01% 674
2020
Q1 		$32.9M Sell
2,999,629
-44,061
-1% -$413K 0.01% 745
2019
Q4 		$26.7M Sell
3,043,690
-53,833
-2% -$395K 0.01% 909
2019
Q3 		$23.1M Sell
3,097,523
-179,759
-5% -$1.64M 0.01% 923
2019
Q2 		$30.5M Sell
3,277,282
-40,590
-1% -$296K 0.01% 907
2019
Q1 		$17.4M Buy
3,317,872
+76,090
+2% +$434K ﹤0.01% 1043
2018
Q4 		$14.4M Sell
3,241,782
-98,764
-3% -$541K ﹤0.01% 1088
2018
Q3 		$27M Sell
3,340,546
-5,810
-0.2% -$41.4K 0.01% 985
2018
Q2 		$23.5M Sell
3,346,356
-111,356
-3% -$1.09M 0.01% 1035
2018
Q1 		$49.2M Buy
3,457,712
+43,122
+1% +$458K 0.01% 782
2017
Q4 		$29.9M Buy
3,414,590
+311,742
+10% +$3.08M 0.01% 938
2017
Q3 		$36.3M Buy
3,102,848
+26,481
+0.9% +$325K 0.01% 853
2017
Q2 		$43M Buy
3,076,367
+536,547
+21% +$6.13M 0.01% 785
2017
Q1 		$34.8M Buy
2,539,820
+195,172
+8% +$2.03M 0.01% 845
2016
Q4 		$16.8M Buy
2,344,648
+172,925
+8% +$1.9M ﹤0.01% 1056
2016
Q3 		$32.9M Buy
2,171,723
+877,647
+68% +$11.5M 0.01% 818
2016
Q2 		$12.7M Sell
1,294,076
-23,952
-2% -$328K ﹤0.01% 1073
2016
Q1 		$17.6M Buy
+1,318,028
New +$16.6M ﹤0.01% 962

Other funds holding SNDX

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 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

Wellington Management Group's SNDX Position: Q1 2026 in Review

Wellington Management Group increased its Syndax Pharmaceuticals (SNDX) stake by 247% in Q1 2026, buying an estimated $1.91M and bringing the position to 123,586 shares worth $2.89M. The position accounts for ﹤0.01% of the portfolio, ranked #1494.

Wellington Management Group first reported a position in SNDX in Q1 2016 and has held it in 41 quarters since. The position peaked at $203M in Q4 2022. 247 funds tracked by Wall St. Rank hold SNDX as of Q1 2026.

  • Wellington Management Group held 123,586 shares of Syndax Pharmaceuticals worth $2.89M as of Q1 2026.
  • Wellington Management Group bought 87,956 Syndax Pharmaceuticals shares in Q1 2026, an estimated $1.91M.
  • Syndax Pharmaceuticals made up ﹤0.01% of Wellington Management Group's portfolio in Q1 2026, its #1494 holding.
  • Wellington Management Group first reported a position in Syndax Pharmaceuticals in Q1 2016 and has held it in 41 quarters since.
  • Wellington Management Group's Syndax Pharmaceuticals position peaked at $203M in Q4 2022.
  • 247 funds tracked by Wall St. Rank held Syndax Pharmaceuticals as of Q1 2026.

Based on Wellington Management Group's 13F filing for Q1 2026, filed 15 May 2026.