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Syndax Pharmaceuticals Inc

SNDX
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001395937

In the last 90 days, Syndax Pharmaceuticals Inc insiders filed 0 open-market purchases and 1 sale; 242 institutions reported holding it in 13F filings for Q2 2026, worth $2.36B in total; no superinvestor holds it.

13F holders, Q4 2024

Institutional positions in Syndax Pharmaceuticals Inc as of Dec 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
216
+8 vs. Q3 2024
Shares held
98.0M
+9.56M (+10.8%) vs. Q3 2024
Total value
$1.30B
−$408.0M (−23.9%) vs. Q3 2024
New holders
37
89 more added
Sold out
29
60 more reduced

2 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting SNDX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2024: 216 institutions
Q1 2021: 130 institutionsQ2 2021: 115 institutionsQ3 2021: 123 institutionsQ4 2021: 132 institutionsQ1 2022: 136 institutionsQ2 2022: 121 institutionsQ3 2022: 139 institutionsQ4 2022: 160 institutionsQ1 2023: 163 institutionsQ2 2023: 166 institutionsQ3 2023: 175 institutionsQ4 2023: 177 institutionsQ1 2024: 189 institutionsQ2 2024: 196 institutionsQ3 2024: 210 institutionsQ4 2024: 216 institutionsQ1 2025: 219 institutionsQ2 2025: 217 institutionsQ3 2025: 227 institutionsQ4 2025: 230 institutionsQ1 2026: 247 institutionsQ2 2026: 242 institutions
Value heldQ4 2024: $1.30B
Q1 2021: $1.08BQ2 2021: $861.9MQ3 2021: $938.0MQ4 2021: $1.15BQ1 2022: $948.4MQ2 2022: $1.06BQ3 2022: $1.44BQ4 2022: $1.82BQ1 2023: $1.54BQ2 2023: $1.48BQ3 2023: $1.03BQ4 2023: $1.92BQ1 2024: $2.15BQ2 2024: $1.79BQ3 2024: $1.71BQ4 2024: $1.30BQ1 2025: $1.24BQ2 2025: $952.6MQ3 2025: $1.56BQ4 2025: $2.10BQ1 2026: $2.32BQ2 2026: $2.36B
Institutions holding SNDX and their total value by quarter
QuarterHoldersValue
Q2 2026242$2.36B
Q1 2026247$2.32B
Q4 2025230$2.10B
Q3 2025227$1.56B
Q2 2025217$952.6M
Q1 2025219$1.24B
Q4 2024216$1.30B
Q3 2024210$1.71B
Q2 2024196$1.79B
Q1 2024189$2.15B
Q4 2023177$1.92B
Q3 2023175$1.03B
Q2 2023166$1.48B
Q1 2023163$1.54B
Q4 2022160$1.82B
Q3 2022139$1.44B
Q2 2022121$1.06B
Q1 2022136$948.4M
Q4 2021132$1.15B
Q3 2021123$938.0M
Q2 2021115$861.9M
Q1 2021130$1.08B

Institutions, Q4 2024

Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q3 2024.

Institutions holding SNDX in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.9,033,949$119.4M0.00%+794,899+9.6%Added
Kynam Capital Management, LP8,520,000$112.6M7.43%+2,677,075+45.8%Added
Goldman Sachs Group Inc5,950,537$78.7M0.02%+4,338,485+269.1%Added
Morgan Stanley5,312,822$70.2M0.00%+4,425,677+498.9%Added
Vanguard Group Inc4,881,968$64.5M0.00%−5,006−0.1%Reduced
Wellington Management Group LLP4,234,455$56.0M0.01%−751,521−15.1%Reduced
State Street Corp3,917,516$51.8M0.00%+146,690+3.9%Added
StemPoint Capital LP2,872,601$38.0M9.52%+1,141,410+65.9%Added
Soleus Capital Management, L.P.2,492,000$32.9M2.49%+1,401,016+128.4%Added
Avoro Capital Advisors LLC2,275,000$30.1M0.43%−1,613,437−41.5%Reduced
Assenagon Asset Management S.A.2,064,456$27.3M0.05%+1,598,428+343.0%Added
Kingdon Capital Management, L.L.C.2,000,000$26.4M4.52%+1,000,000+100.0%Added
Geode Capital Management, LLC1,973,116$26.1M0.00%−3,966−0.2%Reduced
Point72 Asset Management, L.P.1,915,736$25.3M0.07%−862,531−31.0%Reduced
Woodline Partners LP1,891,803$25.0M0.17%−4,229−0.2%Reduced
Franklin Resources Inc1,766,859$23.4M0.01%+3,582+0.2%Added
Avidity Partners Management LP1,500,000$19.8M1.98%−955,000−38.9%Reduced
Sphera Funds Management Ltd.1,381,241$18.3M3.37%+346,395+33.5%Added
Silverarc Capital Management, LLC1,230,400$16.3M3.64%+851,654+224.9%Added
Eventide Asset Management, LLC1,178,062$15.6M0.28%+391,072+49.7%Added
Citadel Advisors LLC1,089,803$14.4M0.01%+1,055,783+3,103.4%Added
UBS Group AG1,028,821$13.6M0.00%+882,383+602.6%Added
Aisling Capital Management LP1,025,000$13.6M4.81%00.0%Unchanged
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,022,537$13.5M0.03%+234,752+29.8%Added
Saturn V Capital Management LLC988,528$13.1M5.12%+486,550+96.9%Added
Granahan Investment Management Inc905,322$12.0M0.50%+240,557+36.2%Added
Octagon Capital Advisors LP904,000$12.0M2.04%+904,000New
JPMorgan Chase & Co897,317$11.9M0.00%+269,638+43.0%Added
Northern Trust Corp792,750$10.5M0.00%+55,144+7.5%Added
Algert Global LLC785,632$10.4M0.24%+310,634+65.4%Added
Qube Research & Technologies Ltd724,416$9.58M0.02%+41,214+6.0%Added
Crestline Management, LP713,205$9.43M0.33%+284,667+66.4%Added
Charles Schwab Investment Management Inc704,823$9.32M0.00%+8,876+1.3%Added
Renaissance Technologies LLC680,965$9.00M0.01%+680,965New
Two Sigma Investments, LP669,823$8.86M0.02%−216,671−24.4%Reduced
Sofinnova Investments, Inc.658,627$8.71M0.64%−128,372−16.3%Reduced
Adage Capital Partners GP, L.L.C.621,840$8.22M0.01%−195,760−23.9%Reduced
Prosight Management, LP620,000$8.20M2.30%+65,897+11.9%Added
Millennium Management LLC586,810$7.76M0.01%−533,153−47.6%Reduced
Nantahala Capital Management, LLC560,532$7.41M0.52%+107,300+23.7%Added
Candriam Luxembourg S.C.A.547,165$7.23M0.04%−451,454−45.2%Reduced
DAFNA Capital Management LLC542,002$7.17M1.82%+15,300+2.9%Added
Two Sigma Advisers, LP535,952$7.09M0.02%−133,400−19.9%Reduced
Parkman Healthcare Partners LLC526,973$6.97M0.93%+18,690+3.7%Added
Polar Capital Holdings Plc500,000$6.61M0.04%00.0%Unchanged
Casdin Capital, LLC475,000$6.28M0.42%00.0%Unchanged
Trexquant Investment LP471,292$6.23M0.07%+437,859+1,309.7%Added
First Turn Management, LLC441,587$5.84M1.05%−745,578−62.8%Reduced
Nuveen Asset Management, LLC434,058$5.74M0.00%−25,474−5.5%Reduced
Palo Alto Investors LP405,193$5.36M0.83%00.0%Unchanged
Altium Capital Management LP370,000$4.89M1.52%+370,000New
Walleye Capital LLC364,750$4.82M0.05%+326,585+855.7%Added
Cubist Systematic Strategies, LLC358,071$4.73M0.08%+358,071New
Twinbeech Capital LP355,900$4.70M0.08%+157,321+79.2%Added
Eversept Partners, LP343,400$4.54M0.47%−3,761,913−91.6%Reduced
Hudson Bay Capital Management LP336,000$4.44M0.03%−89,000−20.9%Reduced
Dimensional Fund Advisors LP331,300$4.38M0.00%+283,577+594.2%Added
Exome Asset Management LLC318,900$4.22M3.17%+318,900New
Ensign Peak Advisors, Inc267,949$3.54M0.01%−93,876−25.9%Reduced
BNP Paribas Arbitrage, SA259,245$3.43M0.00%+238,146+1,128.7%Added
Healthcare of Ontario Pension Plan Trust Fund252,000$3.33M0.01%+252,000New
Bank of America Corp245,508$3.25M0.00%−511,799−67.6%Reduced
Rhenman & Partners Asset Management AB232,000$3.07M0.32%−27,500−10.6%Reduced
Bank of New York Mellon Corp224,261$2.96M0.00%+2,759+1.2%Added
Caption Management, LLC214,667$2.84M0.12%+194,341+956.1%Added
PFM Health Sciences, LP206,871$2.73M0.21%−217,039−51.2%Reduced
Barclays PLC196,051$2.59M0.00%+8,422+4.5%Added
D. E. Shaw & Co., Inc.184,117$2.43M0.00%−168,241−47.7%Reduced
Propel Bio Management, LLC183,259$2.42M2.41%+50,000+37.5%Added
Macquarie Group Ltd180,000$2.38M0.00%−63,352−26.0%Reduced
Rafferty Asset Management, LLC178,165$2.36M0.01%+6,643+3.9%Added
Jump Financial, LLC173,890$2.30M0.05%+77,699+80.8%Added
UBS Asset Management Americas Inc170,100$2.25M0.00%+32,653+23.8%Added
Swiss National Bank149,400$1.98M0.00%00.0%Unchanged
ExodusPoint Capital Management, LP148,568$1.96M0.02%−169,826−53.3%Reduced
Engineers Gate Manager LP147,673$1.95M0.03%+88,262+148.6%Added
Simplify Asset Management Inc.147,641$1.95M0.14%+25,456+20.8%Added
Citigroup Inc144,452$1.91M0.00%+83,516+137.1%Added
State of New Jersey Common Pension Fund D133,111$1.76M0.01%+38,339+40.5%Added
Knott David M Jr128,000$1.69M0.61%+5,856+4.8%Added
Susquehanna International Group, LLP127,557$1.69M0.00%−41,149−24.4%Reduced
Man Group plc121,539$1.61M0.00%+121,539New
Thornburg Investment Management Inc115,087$1.52M0.02%−1,725−1.5%Reduced
Rhumbline Advisers113,449$1.50M0.00%−1,010−0.9%Reduced
Yelin Lapidot Holdings Management Ltd.108,377$1.43M0.25%00.0%Unchanged
HRT Financial LP104,880$1.39M0.01%+51,454+96.3%Added
Tang Capital Management LLC100,000$1.32M0.09%+100,000New
Standard Life Aberdeen plc99,340$1.31M0.00%+99,340New
UBS Oconnor LLC90,232$1.19M0.03%+751+0.8%Added
Deutsche Bank AG89,904$1.19M0.00%+23,634+35.7%Added
Prelude Capital Management, LLC86,225$1.14M0.10%+86,225New
Alliancebernstein L.P.85,250$1.13M0.00%00.0%Unchanged
FMR LLC85,201$1.13M0.00%+35,953+73.0%Added
Polar Asset Management Partners Inc.84,998$1.12M0.02%+84,998New
Y-Intercept (Hong Kong) Ltd83,297$1.10M0.07%+1,995+2.5%Added
Legal & General Group Plc80,862$1.07M0.00%−76−0.1%Reduced
Voloridge Investment Management, LLC79,071$1.05M0.00%+79,071New
Nebula Research & Development LLC76,914$1.02M0.12%+58,844+325.6%Added
California State Teachers Retirement System72,019$952.1K0.00%−742−1.0%Reduced
Canada Pension Plan Investment Board70,000$925.4K0.00%00.0%Unchanged