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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, Q3 2023

Institutional positions in Syndax Pharmaceuticals Inc as of Sep 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
175
+9 vs. Q2 2023
Shares held
71.0M
+357.2K (+0.5%) vs. Q2 2023
Total value
$1.03B
−$447.4M (−30.3%) vs. Q2 2023
New holders
20
76 more added
Sold out
11
59 more reduced

Compare with Q2 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 holdersQ3 2023: 175 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 heldQ3 2023: $1.03B
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, Q3 2023

Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q2 2023.

Institutions holding SNDX in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Manufacturers Life Insurance Company, The34,138$495.7K0.00%+7,518+28.2%Added
Woodline Partners LP34,067$494.7K0.01%−578,249−94.4%Reduced
American International Group, Inc.32,881$477.4K0.00%+1,169+3.7%Added
New York State Common Retirement Fund30,825$447.6K0.00%+1,080+3.6%Added
Tudor Investment Corp Et Al29,939$434.7K0.01%+29,939New
XTX Topco Ltd29,864$433.6K0.07%+29,864New
DekaBank Deutsche Girozentrale28,300$431.0K0.00%00.0%Unchanged
HighVista Strategies LLC29,490$428.2K0.20%−4,086−12.2%Reduced
Squarepoint Ops LLC29,120$422.8K0.00%−10,163−25.9%Reduced
STRS Ohio27,000$392.0K0.00%00.0%Unchanged
Janus Henderson Group PLC26,486$384.4K0.00%+60.0%Added
Public Employees Retirement Association of Colorado24,745$359.0K0.00%−4,681−15.9%Reduced
AQR Capital Management LLC24,572$356.8K0.00%+3,034+14.1%Added
Price T Rowe Associates Inc24,410$355.0K0.00%+1,471+6.4%Added
HRT Financial LP24,009$348.0K0.00%+13,258+123.3%Added
Y-Intercept (Hong Kong) Ltd22,043$320.1K0.03%+22,043New
CWM Advisors, LLC21,095$306.3K0.04%−7,673−26.7%Reduced
Sigma Planning Corp20,750$301.3K0.01%−100.0%Reduced
Inspire Advisors, LLC20,561$298.5K0.05%−20,721−50.2%Reduced
Silverarc Capital Management, LLC20,000$290.4K0.11%00.0%Unchanged
State Board of Administration of Florida Retirement System18,968$275.4K0.00%+260+1.4%Added
Russell Investments Group, Ltd.18,798$272.9K0.00%+10,298+121.2%Added
PEAK6 Investments LLC16,000$232.3K0.01%00.0%Unchanged
Arizona State Retirement System15,676$227.6K0.00%+285+1.9%Added
Teacher Retirement System of Texas15,619$227.0K0.00%+757+5.1%Added
Fox Run Management, L.L.C.15,320$222.4K0.07%+15,320New
Principle Wealth Partners LLC15,000$217.8K0.02%00.0%Unchanged
Verition Fund Management LLC15,000$217.8K0.00%+15,000New
E Fund Management Co., Ltd.14,594$212.0K0.02%−3,433−19.0%Reduced
GTS Securities LLC14,403$209.1K0.00%+14,403New
Point72 Middle East FZE14,381$208.8K0.01%−1,049−6.8%Reduced
Parallax Volatility Advisers, L.P.13,788$200.2K0.01%+13,788New
ProShare Advisors LLC13,102$190.2K0.00%+80+0.6%Added
Zurcher Kantonalbank (Zurich Cantonalbank)12,964$188.2K0.00%−108−0.8%Reduced
Simplify Asset Management Inc.12,665$183.9K0.03%−144−1.1%Reduced
Mesirow Financial Investment Management, Inc.12,283$178.3K0.78%00.0%Unchanged
Commonwealth Equity Services, LLC11,695$170.0K0.00%+200+1.7%Added
Royal Bank of Canada11,479$167.0K0.00%+4,126+56.1%Added
Tower Research Capital LLC (TRC)11,111$161.3K0.01%+3,581+47.6%Added
Worth Venture Partners, LLC10,900$158.3K0.09%00.0%Unchanged
Axiom Investors LLC10,820$157.1K0.00%−19,290−64.1%Reduced
Wedbush Securities Inc10,000$145.0K0.01%00.0%Unchanged
SG Americas Securities, LLC9,841$143.0K0.00%+9,841New
Caption Management, LLC9,302$135.1K0.02%−2,498−21.2%Reduced
Amalgamated Bank9,023$131.0K0.00%00.0%Unchanged
Quantbot Technologies LP9,000$130.7K0.01%+9,000New
Ameritas Investment Partners, Inc.6,546$95.0K0.00%+1,105+20.3%Added
Exchange Traded Concepts, LLC6,028$87.5K0.00%−1,185−16.4%Reduced
Great West Life Assurance Co5,595$81.0K0.00%+2,962+112.5%Added
US Bancorp4,647$67.5K0.00%+177+4.0%Added
Annandale Capital, LLC4,600$67.0K0.02%+4,600New
Virtus ETF Advisers LLC4,532$65.8K0.04%−451−9.1%Reduced
Ikarian Capital, LLC4,000$58.1K0.02%+4,000New
Metropolitan Life Insurance Co3,807$55.3K0.00%+205+5.7%Added
Sandia Investment Management LP3,000$43.6K0.01%−2,000−40.0%Reduced
Advisor Group Holdings, Inc.1,900$27.6K0.00%+200+11.8%Added
China Universal Asset Management Co., Ltd.1,782$25.9K0.01%+880+97.6%Added
Quadrant Capital Group LLC945$13.7K0.00%+933+7,775.0%Added
Parallel Advisors, LLC486$7.06K0.00%+486New
CWM, LLC327$5.00K0.00%−266−44.9%Reduced
Daiwa Securities Group Inc.242$4.00K0.00%00.0%Unchanged
Global Retirement Partners, LLC321$3.90K0.00%+6+1.9%Added
Truvestments Capital LLC218$3.17K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.160$2.32K0.00%+62+63.3%Added
Comerica Bank150$2.18K0.00%+150New
Signaturefd, LLC126$1.83K0.00%−23−15.4%Reduced
Lindbrook Capital, LLC95$1.38K0.00%+20+26.7%Added
Nisa Investment Advisors, LLC64$9290.00%−1,368−95.5%Reduced
Massmutual Trust Co FSB56$8130.00%−5−8.2%Reduced
Glassman Wealth Services38$5520.00%+38New
Baker Avenue Asset Management, LP31$4500.00%−11−26.2%Reduced
Grove Bank & Trust24$3480.00%+24New
Versant Capital Management, Inc10$1450.00%−13−56.5%Reduced
Allworth Financial LP9$1310.00%−18−66.7%Reduced
Covestor Ltd6$00.00%00.0%Unchanged
Walleye Capital LLC0$00.00%−264,464−100.0%Sold out
Ergoteles LLC0$00.00%−68,764−100.0%Sold out
Trexquant Investment LP0$00.00%−65,657−100.0%Sold out
683 Capital Management, LLC0$00.00%−60,000−100.0%Sold out
Healthcare of Ontario Pension Plan Trust Fund0$00.00%−45,000−100.0%Sold out
Kiwi Wealth Investments Limited Partnership0$00.00%−31,586−100.0%Sold out
PAX Financial Group, LLC0$00.00%−27,458−100.0%Sold out
Allianz Asset Management GmbH0$00.00%−26,800−100.0%Sold out
Bayesian Capital Management, LP0$00.00%−17,669−100.0%Sold out
Walleye Trading LLC0$00.00%−9,677−100.0%Sold out
Allspring Global Investments Holdings, LLC0$00.00%−2,501−100.0%Sold out