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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, Q2 2023

Institutional positions in Syndax Pharmaceuticals Inc as of Jun 30, 2023. 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
166
+4 vs. Q1 2023
Shares held
70.7M
−2.32M (−3.2%) vs. Q1 2023
Total value
$1.48B
−$61.9M (−4.0%) vs. Q1 2023
New holders
23
83 more added
Sold out
19
42 more reduced

1 institution that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2023: 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 holdersQ2 2023: 166 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 heldQ2 2023: $1.48B
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, Q2 2023

Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q1 2023.

Institutions holding SNDX in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Swiss National Bank119,300$2.50M0.00%+3,600+3.1%Added
State of New Jersey Common Pension Fund D119,971$2.51M0.01%+36,532+43.8%Added
Voya Investment Management LLC130,618$2.73M0.00%+21,422+19.6%Added
Qube Research & Technologies Ltd130,758$2.74M0.01%+90,147+222.0%Added
Alliancebernstein L.P.131,330$2.75M0.00%+22,510+20.7%Added
Two Sigma Advisers, LP137,152$2.87M0.01%−126,200−47.9%Reduced
Twinbeech Capital LP150,196$3.14M0.06%+20,672+16.0%Added
Millennium Management LLC151,700$3.18M0.00%+109,972+263.5%Added
Nuveen Asset Management, LLC160,947$3.37M0.00%+9,710+6.4%Added
Prudential Financial Inc168,770$3.53M0.01%−16,935−9.1%Reduced
Barclays PLC169,195$3.54M0.00%−812,691−82.8%Reduced
D. E. Shaw & Co., Inc.173,019$3.62M0.01%+33,952+24.4%Added
Saturn V Capital Management LLC173,717$3.64M2.02%+173,717New
ExodusPoint Capital Management, LP205,718$4.31M0.05%+143,845+232.5%Added
Parkman Healthcare Partners LLC208,266$4.36M0.76%+208,266New
Soleus Capital Management, L.P.212,600$4.45M0.49%−110,000−34.1%Reduced
Macquarie Group Ltd231,443$4.84M0.01%+51,443+28.6%Added
Peregrine Capital Management LLC233,738$4.89M0.13%+233,738New
Bank of New York Mellon Corp234,980$4.92M0.00%+23,257+11.0%Added
Citadel Advisors LLC236,950$4.96M0.01%−1,342,719−85.0%Reduced
Schonfeld Strategic Advisors LLC238,567$4.99M0.04%+91,001+61.7%Added
Candriam Luxembourg S.C.A.240,010$5.02M0.04%−14,864−5.8%Reduced
Algert Global LLC253,631$5.31M0.23%+167,660+195.0%Added
Walleye Capital LLC264,464$5.54M0.10%−280,626−51.5%Reduced
Assenagon Asset Management S.A.264,645$5.54M0.02%−74,947−22.1%Reduced
Panagora Asset Management Inc267,082$5.59M0.03%+84,701+46.4%Added
Bank of America Corp283,867$5.94M0.00%−111,302−28.2%Reduced
Acuta Capital Partners, LLC299,841$6.28M4.25%−30,159−9.1%Reduced
Nantahala Capital Management, LLC323,134$6.76M0.82%−652,571−66.9%Reduced
Rafferty Asset Management, LLC335,347$7.02M0.04%+52,464+18.5%Added
Ghost Tree Capital, LLC350,000$7.33M2.64%+25,000+7.7%Added
Ameriprise Financial Inc355,921$7.45M0.00%+355,921New
Lord, Abbett & Co. LLC365,172$7.64M0.03%−119,494−24.7%Reduced
Ensign Peak Advisors, Inc388,352$8.13M0.02%+152,982+65.0%Added
Morgan Stanley429,720$8.99M0.00%−664,124−60.7%Reduced
DAFNA Capital Management LLC450,873$9.44M2.58%+3,800+0.8%Added
Hudson Bay Capital Management LP475,000$9.94M0.10%+475,000New
Charles Schwab Investment Management Inc491,311$10.3M0.00%+21,145+4.5%Added
Dimensional Fund Advisors LP594,462$12.4M0.00%−725,763−55.0%Reduced
Woodline Partners LP612,316$12.8M0.15%+612,316New
Palo Alto Investors LP612,600$12.8M1.04%00.0%Unchanged
Northern Trust Corp664,467$13.9M0.00%+69,543+11.7%Added
Sphera Funds Management Ltd.723,061$15.1M3.24%+40,000+5.9%Added
Goldman Sachs Group Inc746,385$15.6M0.00%+255,612+52.1%Added
JPMorgan Chase & Co770,721$16.1M0.00%+221,636+40.4%Added
Foresite Capital Management IV, LLC875,000$18.3M9.00%00.0%Unchanged
Adage Capital Partners GP, L.L.C.925,000$19.4M0.04%+135,000+17.1%Added
Commodore Capital LP997,596$20.9M2.35%+143,712+16.8%Added
Aisling Capital Management LP1,025,000$21.5M10.51%00.0%Unchanged
T. Rowe Price Investment Management, Inc.1,066,548$22.3M0.02%+65,833+6.6%Added
Point72 Asset Management, L.P.1,234,800$25.8M0.09%+710,400+135.5%Added
Geode Capital Management, LLC1,321,103$27.7M0.00%+93,502+7.6%Added
Sofinnova Investments, Inc.1,582,291$33.1M2.19%+506,867+47.1%Added
PFM Health Sciences, LP2,172,437$45.5M1.83%+225,785+11.6%Added
Eversept Partners, LP2,189,732$45.8M4.84%−19,325−0.9%Reduced
Paradigm Biocapital Advisors LP2,424,132$50.7M4.11%+149,620+6.6%Added
Jennison Associates LLC2,521,916$52.8M0.04%+105,462+4.4%Added
OrbiMed Advisors LLC2,530,240$53.0M1.03%+818,565+47.8%Added
Avoro Capital Advisors LLC2,650,000$55.5M0.75%00.0%Unchanged
Avidity Partners Management LP2,872,000$60.1M2.10%−993,300−25.7%Reduced
Kynam Capital Management, LP3,262,004$68.3M10.46%+56,018+1.7%Added
Vanguard Group Inc3,582,670$75.0M0.00%+85,585+2.4%Added
Frazier Life Sciences Management, L.P.3,708,838$77.6M4.64%00.0%Unchanged
State Street Corp4,154,061$86.9M0.00%+287,831+7.4%Added
BlackRock Inc.4,990,984$104.5M0.00%+90,143+1.8%Added
Wellington Management Group LLP7,444,184$155.8M0.03%+440,450+6.3%Added
BVF Inc0$00.00%−2,143,197−100.0%Sold out
Braidwell LP0$00.00%−920,049−100.0%Sold out
Tekla Capital Management LLC0$00.00%−117,717−100.0%Sold out
SG Americas Securities, LLC0$00.00%−90,137−100.0%Sold out
Sowell Financial Services LLC0$00.00%−69,748−100.0%Sold out
Two Sigma Investments, LP0$00.00%−69,169−100.0%Sold out
Virtu Financial LLC0$00.00%−39,932−100.0%Sold out
Susquehanna Fundamental Investments, LLC0$00.00%−26,678−100.0%Sold out
American Century Companies Inc0$00.00%−17,267−100.0%Sold out
Ziegler Capital Management, LLC0$00.00%−17,090−100.0%Sold out
Victory Capital Management Inc0$00.00%−16,033−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−13,214−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−10,943−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−7,920−100.0%Sold out
State of Wyoming0$00.00%−3,242−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−502−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−281−100.0%Sold out
Fisher Asset Management, LLC0$00.00%−147−100.0%Sold out
EverSource Wealth Advisors, LLC0$00.00%−64−100.0%Sold out
Stonnington Group, LLC––––Not filed