Syndax Pharmaceuticals Inc - Common Stock, par value $0.0001 per share (SNDX) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2016 to Q4 2025

Type / Class
Equity / Common Stock, par value $0.0001 per share
Symbol
SNDX on Nasdaq
Shares outstanding
86,559,040
Price per share
$21.01
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
101,141,226
Total reported value
$1,556,073,766
% of total 13F portfolios
0.01%
Share change
-672,117
Value change
+$19,277,997
Number of holders
225
Price from insider filings
$21.01
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Syndax Pharmaceuticals Inc - Common Stock, par value $0.0001 per share (SNDX) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Kynam Capital Management, LP 10% $113,571,600 8,520,000 Kynam Capital Management, LP 31 Dec 2024
BlackRock, Inc. 7.8% $89,898,173 6,744,049 BlackRock, Inc. 31 Mar 2025
GOLDMAN SACHS GROUP INC 6.5% +26% $51,576,091 +$9,897,509 5,581,828 +24% THE GOLDMAN SACHS GROUP, INC. 30 Jun 2025
Point72 Asset Management, L.P. 5% +77% $44,621,185 +$20,827,520 4,327,952 +88% Point72 Asset Management, L.P. 15 Aug 2025
MORGAN STANLEY 2.4% -65% $27,193,373 -$44,284,339 2,040,013 -62% Morgan Stanley 31 Mar 2025
WELLINGTON MANAGEMENT GROUP LLP 0% $475,628 35,681 Wellington Management Group LLP 28 Feb 2025

As of 30 Sep 2025, 225 institutional investors reported holding 101,141,226 shares of Syndax Pharmaceuticals Inc - Common Stock, par value $0.0001 per share (SNDX). This represents 117% of the company’s total 86,559,040 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Syndax Pharmaceuticals Inc - Common Stock, par value $0.0001 per share (SNDX) together control 84% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 10% 8,625,244 -18% 0% $132,699,393
Kynam Capital Management, LP 9.8% 8,520,000 0% 9.8% $131,080,200
GOLDMAN SACHS GROUP INC 6.3% 5,486,434 -5.4% 0.01% $84,408,787
VANGUARD GROUP INC 5.9% 5,138,617 +2.1% 0% $79,057,621
Point72 Asset Management, L.P. 4.9% 4,255,047 +100% 0.14% $65,463,921
STATE STREET CORP 4.5% 3,853,549 +12% 0% $59,286,852
BANK OF AMERICA CORP /DE/ 4.3% 3,697,753 -3.7% 0% $56,889,929
Eversept Partners, LP 4% 3,467,314 -15% 4.1% $53,344,626
ADAGE CAPITAL PARTNERS GP, L.L.C. 3.8% 3,311,963 +131% 0.08% $50,954,551
KINGDON CAPITAL MANAGEMENT, L.L.C. 2.9% 2,500,000 +19% 6% $38,462,500
FRANKLIN RESOURCES INC 2.8% 2,390,561 +1.3% 0.01% $36,778,786
GEODE CAPITAL MANAGEMENT, LLC 2.4% 2,091,331 +2% 0% $32,179,868
Soleus Capital Management, L.P. 2.3% 2,012,110 +84% 1.7% $30,956,312
Assenagon Asset Management S.A. 2.1% 1,784,139 -13% 0.04% $27,448,979
UBS Group AG 1.9% 1,674,513 +17% 0.01% $25,762,382
Qube Research & Technologies Ltd 1.9% 1,644,844 -1.3% 0.04% $25,305,925
Catalio Capital Management, LP 1.9% 1,614,717 -23% 4.6% $24,842,421
Woodline Partners LP 1.8% 1,550,520 -18% 0.11% $23,854,750
Nuveen, LLC 1.7% 1,475,798 +455% 0.01% $22,705,153
MPM BIOIMPACT LLC 1.6% 1,375,674 3.5% $21,164,744
STEMPOINT CAPITAL LP 1.6% 1,366,205 -42% 4.2% $21,019,064
Aisling Capital Management LP 1.5% 1,316,806 0% 4.4% $20,265,644
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 1.4% 1,236,077 -14% 0.05% $19,017,000
MORGAN STANLEY 1.4% 1,199,296 +41% 0% $18,451,176
D. E. Shaw & Co., Inc. 1.2% 1,077,585 +67% 0.01% $16,578,645

Institutional Holders of Syndax Pharmaceuticals Inc - Common Stock, par value $0.0001 per share (SNDX) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 226,524 $4,745,679 -$34,525,086 $21.01 9
2025 Q3 101,141,226 $1,556,073,766 +$19,277,997 $15.38 225
2025 Q2 101,743,087 $952,765,629 -$3,412,831 $9.36 214
2025 Q1 100,841,762 $1,238,937,353 +$32,280,128 $12.28 215
2024 Q4 98,036,463 $1,295,985,057 +$87,204,107 $13.22 214
2024 Q3 88,967,889 $1,713,503,490 +$22,962,287 $19.25 208
2024 Q2 87,359,094 $1,793,463,324 -$71,085,162 $20.53 195
2024 Q1 90,291,619 $2,148,803,982 +$45,990,918 $23.80 188
2023 Q4 88,660,945 $1,915,962,261 +$405,830,138 $21.61 176
2023 Q3 71,017,590 $1,031,468,287 -$1,236,482 $14.52 174
2023 Q2 70,660,286 $1,478,899,897 -$48,383,346 $20.93 165
2023 Q1 72,989,203 $1,541,067,785 +$23,662,697 $21.12 161
2022 Q4 71,468,832 $1,818,847,118 +$262,720,878 $25.45 159
2022 Q3 59,986,014 $1,441,473,166 +$97,845,580 $24.03 136
2022 Q2 55,225,664 $1,062,543,225 +$21,478,133 $19.24 116
2022 Q1 54,572,890 $948,388,792 -$36,428,045 $17.38 136
2021 Q4 52,428,774 $1,146,955,026 +$54,297,905 $21.89 129
2021 Q3 49,078,197 $938,007,416 -$20,732,602 $19.11 121
2021 Q2 50,204,902 $861,938,071 +$12,311,173 $17.17 113
2021 Q1 48,482,656 $1,083,969,550 +$46,478,159 $22.36 130
2020 Q4 46,493,166 $1,034,139,433 +$269,937,051 $22.24 140
2020 Q3 34,234,622 $505,296,990 +$23,535,263 $14.76 98
2020 Q2 32,648,161 $483,839,331 +$177,178,450 $14.82 96
2020 Q1 20,764,120 $227,777,510 +$45,430,574 $10.97 81
2019 Q4 16,674,566 $146,400,674 -$3,736,906 $8.78 71
2019 Q3 17,141,763 $128,044,931 -$811,927 $7.47 72
2019 Q2 17,174,052 $159,885,671 +$3,968,740 $9.31 71
2019 Q1 16,955,330 $89,016,913 +$8,086,878 $5.25 66
2018 Q4 15,460,307 $68,794,733 -$2,725,288 $4.45 73
2018 Q3 15,338,464 $123,912,664 +$3,406,829 $8.08 73
2018 Q2 15,085,582 $105,898,739 -$23,251,843 $7.02 83
2018 Q1 17,173,123 $244,377,218 +$5,182,148 $14.23 72
2017 Q4 17,172,317 $150,421,862 +$15,929,302 $8.76 77
2017 Q3 15,034,508 $175,968,675 -$8,293,783 $11.70 67
2017 Q2 15,705,504 $219,397,678 +$56,766,148 $13.97 63
2017 Q1 11,652,824 $159,872,123 +$30,204,104 $13.72 62
2016 Q4 11,123,178 $79,752,466 -$4,867,203 $7.17 55
2016 Q3 11,599,012 $175,841,071 +$19,928,095 $15.16 45
2016 Q2 10,263,556 $101,043,565 +$10,817,957 $9.85 46
2016 Q1 9,443,951 $125,631,000 +$125,631,000 $13.32 27