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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 2024

Institutional positions in Syndax Pharmaceuticals Inc as of Jun 30, 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
196
+8 vs. Q1 2024
Shares held
87.4M
−2.85M (−3.2%) vs. Q1 2024
Total value
$1.79B
−$353.3M (−16.5%) vs. Q1 2024
New holders
26
87 more added
Sold out
18
59 more reduced

1 institution that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2024: 196 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 2024: $1.79B
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 2024

Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q1 2024.

Institutions holding SNDX in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.7,906,765$162.3M0.00%+354,334+4.7%Added
Wellington Management Group LLP7,339,004$150.7M0.03%−97,612−1.3%Reduced
Kynam Capital Management, LP5,722,057$117.5M12.30%+62,057+1.1%Added
Vanguard Group Inc4,797,089$98.5M0.00%−129,895−2.6%Reduced
Avoro Capital Advisors LLC3,888,437$79.8M1.06%−333,785−7.9%Reduced
State Street Corp3,622,335$74.4M0.00%−1,197,259−24.8%Reduced
Eversept Partners, LP3,613,631$74.2M5.68%+480,518+15.3%Added
Avidity Partners Management LP3,335,000$68.5M2.91%+922,500+38.2%Added
Point72 Asset Management, L.P.2,782,853$57.1M0.18%+716,168+34.7%Added
Sofinnova Investments, Inc.2,153,669$44.2M2.79%+545,129+33.9%Added
OrbiMed Advisors LLC1,925,300$39.5M0.84%+176,300+10.1%Added
Geode Capital Management, LLC1,910,623$39.2M0.00%+132,075+7.4%Added
Marshall Wace, LLP1,830,427$37.6M0.05%−201,632−9.9%Reduced
Franklin Resources Inc1,555,234$31.9M0.01%+59,529+4.0%Added
Woodline Partners LP1,545,528$31.7M0.30%+1,241+0.1%Added
Goldman Sachs Group Inc1,444,012$29.6M0.01%+133,939+10.2%Added
StemPoint Capital LP1,412,176$29.0M8.53%+311,188+28.3%Added
Millennium Management LLC1,065,508$21.9M0.02%+383,634+56.3%Added
Aisling Capital Management LP1,025,000$21.0M9.11%00.0%Unchanged
Candriam Luxembourg S.C.A.970,106$19.9M0.12%−74,926−7.2%Reduced
Two Sigma Investments, LP930,947$19.1M0.05%+212,395+29.6%Added
Kingdon Capital Management, L.L.C.894,993$18.4M2.84%00.0%Unchanged
Foresite Capital Management IV, LLC875,000$18.0M12.07%00.0%Unchanged
Adage Capital Partners GP, L.L.C.860,000$17.7M0.03%−40,000−4.4%Reduced
Bank of America Corp852,206$17.5M0.00%−802,846−48.5%Reduced
Soleus Capital Management, L.P.826,500$17.0M1.50%+457,500+124.0%Added
Commodore Capital LP825,000$16.9M1.16%+506,149+158.7%Added
Sphera Funds Management Ltd.822,047$16.9M2.75%+9,083+1.1%Added
Morgan Stanley756,232$15.5M0.00%−1,059,526−58.4%Reduced
Northern Trust Corp696,729$14.3M0.00%−45,098−6.1%Reduced
DAFNA Capital Management LLC657,074$13.5M3.22%−2,500−0.4%Reduced
Federated Hermes, Inc.656,250$13.5M0.03%+117,536+21.8%Added
Charles Schwab Investment Management Inc654,489$13.4M0.00%+19,282+3.0%Added
First Turn Management, LLC640,389$13.1M2.14%+640,389New
JPMorgan Chase & Co629,880$12.9M0.00%−52,584−7.7%Reduced
ExodusPoint Capital Management, LP625,723$12.8M0.14%+339,393+118.5%Added
Two Sigma Advisers, LP621,252$12.8M0.03%+165,400+36.3%Added
Parkman Healthcare Partners LLC600,698$12.3M1.68%−184,113−23.5%Reduced
Granahan Investment Management Inc594,386$12.2M0.49%+197,508+49.8%Added
Nuveen Asset Management, LLC556,414$11.4M0.00%+163,728+41.7%Added
Prosight Management, LP551,544$11.3M3.38%+551,544New
Ameriprise Financial Inc521,080$10.7M0.00%+9,579+1.9%Added
Ensign Peak Advisors, Inc518,885$10.7M0.02%+4,033+0.8%Added
Nantahala Capital Management, LLC453,232$9.30M0.93%−12,027−2.6%Reduced
Algert Global LLC432,128$8.87M0.30%+6,455+1.5%Added
Assenagon Asset Management S.A.428,949$8.81M0.02%+151,021+54.3%Added
Saturn V Capital Management LLC419,654$8.62M3.26%+21,657+5.4%Added
Palo Alto Investors LP405,193$8.32M0.96%00.0%Unchanged
PFM Health Sciences, LP387,357$7.95M0.43%−271,337−41.2%Reduced
Silverarc Capital Management, LLC370,000$7.60M1.88%+370,000New
Ghost Tree Capital, LLC350,000$7.19M2.50%+200,000+133.3%Added
Qube Research & Technologies Ltd297,303$6.10M0.01%+203,414+216.7%Added
Bank of New York Mellon Corp291,826$5.99M0.00%+46,463+18.9%Added
T. Rowe Price Investment Management, Inc.283,827$5.83M0.00%−2,175,408−88.5%Reduced
Schonfeld Strategic Advisors LLC260,876$5.36M0.04%−524,768−66.8%Reduced
Macquarie Group Ltd242,919$4.99M0.01%−730.0%Reduced
Healthcare of Ontario Pension Plan Trust Fund228,625$4.69M0.01%−551,375−70.7%Reduced
Rhenman & Partners Asset Management AB228,500$4.69M0.45%+50,000+28.0%Added
Renaissance Technologies LLC214,300$4.40M0.01%+135,200+170.9%Added
Peregrine Capital Management LLC198,659$4.08M0.12%+2,580+1.3%Added
Citadel Advisors LLC189,981$3.90M0.00%+156,172+461.9%Added
Voya Investment Management LLC183,649$3.77M0.00%−13,375−6.8%Reduced
Rafferty Asset Management, LLC177,920$3.65M0.01%−195,318−52.3%Reduced
Twinbeech Capital LP167,714$3.44M0.07%+95,831+133.3%Added
Zimmer Partners, LP155,000$3.18M0.06%00.0%Unchanged
UBS Asset Management Americas Inc153,360$3.15M0.00%+56,527+58.4%Added
Jane Street Group, LLC153,311$3.15M0.00%+39,783+35.0%Added
Swiss National Bank150,600$3.09M0.00%00.0%Unchanged
Casdin Capital, LLC150,000$3.08M0.24%00.0%Unchanged
D. E. Shaw & Co., Inc.146,643$3.01M0.00%+138,119+1,620.4%Added
Verition Fund Management LLC144,566$2.97M0.02%−202,296−58.3%Reduced
Crestline Management, LP143,280$2.94M0.23%+39,570+38.2%Added
Prudential Financial Inc134,430$2.76M0.00%+118,670+753.0%Added
UBS Group AG125,152$2.57M0.00%−144,659−53.6%Reduced
Rhumbline Advisers119,285$2.45M0.00%+10,291+9.4%Added
Yelin Lapidot Holdings Management Ltd.114,530$2.35M0.41%00.0%Unchanged
UBS Oconnor LLC110,454$2.27M0.06%+2,023+1.9%Added
Knott David M Jr103,826$2.13M0.85%+38,351+58.6%Added
Susquehanna International Group, LLP102,027$2.09M0.00%−634,121−86.1%Reduced
Axiom Investors LLC95,140$1.95M0.02%+1,075+1.1%Added
State of New Jersey Common Pension Fund D94,313$1.94M0.01%−20,071−17.5%Reduced
Trexquant Investment LP93,906$1.93M0.03%+19,314+25.9%Added
Alliancebernstein L.P.85,250$1.75M0.00%+7,790+10.1%Added
Propel Bio Management, LLC83,259$1.71M1.11%00.0%Unchanged
Panagora Asset Management Inc82,849$1.70M0.01%−154,157−65.0%Reduced
BIT Capital GmbH79,786$1.64M0.15%+12,822+19.1%Added
Barclays PLC77,094$1.58M0.00%−25,078−24.5%Reduced
Seven Eight Capital, LP75,971$1.56M0.16%+66,332+688.2%Added
Engineers Gate Manager LP75,840$1.56M0.04%+33,353+78.5%Added
Graham Capital Management, L.P.75,651$1.55M0.05%−4,535−5.7%Reduced
California State Teachers Retirement System75,346$1.55M0.00%−1,211−1.6%Reduced
Simplify Asset Management Inc.75,193$1.54M0.14%−144−0.2%Reduced
Legal & General Group Plc74,425$1.53M0.00%+4,647+6.7%Added
Dimensional Fund Advisors LP70,181$1.44M0.00%−38,464−35.4%Reduced
Alps Advisors Inc66,293$1.36M0.01%+6,369+10.6%Added
Lion Point Capital, LP65,000$1.33M4.18%00.0%Unchanged
Nicholas Investment Partners, LP62,366$1.28M0.13%+62,366New
Fox Run Management, L.L.C.55,835$1.15M0.22%+55,835New
Deutsche Bank AG53,189$1.09M0.00%−3,086−5.5%Reduced
State of Wisconsin Investment Board52,287$1.07M0.00%+11,086+26.9%Added