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Syndax Pharmaceuticals

246 hedge funds and large institutions have $2.32B invested in Syndax Pharmaceuticals in 2026 Q1 according to their latest regulatory filings, with 45 funds opening new positions, 99 increasing their positions, 68 reducing their positions, and 25 closing their positions.

New
Increased
Maintained
Reduced
Closed

86% more call options, than puts

Call options by funds: $15.2M | Put options by funds: $8.14M

80% more first-time investments, than exits

New positions opened: 45 | Existing positions closed: 25

46% more repeat investments, than reductions

Existing positions increased: 99 | Existing positions reduced: 68

11% more capital invested

Capital invested by funds: $2.1B → $2.32B (+$222M)

7% more funds holding

Funds holding: 229246 (+17)

2.28% less ownership

Funds ownership: 114.94%112.66% (-2.3%)

9% less funds holding in top 10

Funds holding in top 10: 1110 (-1)

Holders
246
Holders Change
+17
Holders Change %
+7.42%
% of All Funds
3.03%
Holding in Top 10
10
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-9.09%
% of All Funds
0.12%
New
45
Increased
99
Reduced
68
Closed
25
Calls
$15.2M
Puts
$8.14M
Net Calls
+$7.04M
Net Calls Change
-$8.56M
Name Holding Trade Value Shares
Change
Change in
Stake
NIM
251
NEOS Investment Management
Connecticut
-$2.13M -101,553 Closed
II
252
Ishara Investments
California
-$2.1M -100,000 Closed
DFCM
253
Dark Forest Capital Management
Puerto Rico
-$1.53M -72,703 Closed
SAM
254
Simplify Asset Management
Nevada
-$1.15M -54,715 Closed
Dimensional Fund Advisors
255
Dimensional Fund Advisors
Texas
-$595K -28,312 Closed
DekaBank Deutsche Girozentrale
256
DekaBank Deutsche Girozentrale
Germany
-$710K -28,300 Closed
Verition Fund Management
257
Verition Fund Management
Connecticut
-$388K -18,460 Closed
ET
258
Entropy Technologies
New York
-$316K -15,064 Closed
Lazard Asset Management
259
Lazard Asset Management
New York
-$297K -14,140 Closed
A
260
AlphaQuest
New York
-$292K -13,921 Closed
Group One Trading
261
Group One Trading
Illinois
-$256K -11,792 Closed
I
262
InceptionR
California
-$226K -10,747 Closed
QL
263
Quarry LP
New York
-$210K -10,000 Closed
CIA
264
Cape Investment Advisory
Georgia
-$98K -4,663 Closed
AB
265
Amalgamated Bank
New York
-$56K -2,677 Closed
JFG
266
Jefferies Financial Group
New York
-$8.68K -413 Closed
CMBA
267
C.M. Bidwell & Associates
Hawaii
-$6.47K -308 Closed
Daiwa Securities Group
268
Daiwa Securities Group
Japan
-$5K -244 Closed
BAM
269
Bellevue Asset Management
Washington
-$1.66K -79 Closed
CA
270
Clearstead Advisors
Ohio
-$736 -35 Closed

SNDX Hedge Fund Activity: Q1 2026 in Review

246 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Syndax Pharmaceuticals (SNDX) for Q1 2026, worth a combined $2.32B — up 11% from $2.1B a quarter earlier.

Buyers outnumbered sellers: 45 funds opened new SNDX positions and 25 closed out — a net gain of 20 holders — while 99 added to existing stakes and 68 trimmed.

The largest buyer was Deerfield Management, opening a new position worth an estimated $82.1M. The largest seller was Point72 Asset Management, cutting an estimated $62.9M.

  • 246 institutional investors held Syndax Pharmaceuticals (SNDX) as of Q1 2026, up from 229 in Q4 2025.
  • Funds reported $2.32B of Syndax Pharmaceuticals stock for Q1 2026, up 11% quarter-over-quarter.
  • 45 funds opened new Syndax Pharmaceuticals positions in Q1 2026 and 25 closed out, a net change of +20 holders.
  • The largest Syndax Pharmaceuticals buyer in Q1 2026 was Deerfield Management, an estimated $82.1M added.
  • The largest Syndax Pharmaceuticals seller in Q1 2026 was Point72 Asset Management, an estimated $62.9M sold.

Based on aggregated 13F filings for Q1 2026.