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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, Q1 2023

Institutional positions in Syndax Pharmaceuticals Inc as of Mar 31, 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
163
+5 vs. Q4 2022
Shares held
73.0M
+1.69M (+2.4%) vs. Q4 2022
Total value
$1.54B
−$273.5M (−15.1%) vs. Q4 2022
New holders
31
74 more added
Sold out
26
33 more reduced

2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 holdersQ1 2023: 163 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 heldQ1 2023: $1.54B
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, Q1 2023

Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q4 2022.

Institutions holding SNDX in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Wellington Management Group LLP7,003,734$147.9M0.03%−979,708−12.3%Reduced
BlackRock Inc.4,900,841$103.5M0.00%+548,809+12.6%Added
State Street Corp3,866,230$81.7M0.00%+217,767+6.0%Added
Avidity Partners Management LP3,865,300$81.6M2.71%−1,995,700−34.1%Reduced
Frazier Life Sciences Management, L.P.3,708,838$78.3M5.67%00.0%Unchanged
Vanguard Group Inc3,497,085$73.9M0.00%+133,635+4.0%Added
Kynam Capital Management, LP3,205,986$67.7M8.76%+644,799+25.2%Added
Avoro Capital Advisors LLC2,650,000$56.0M0.83%00.0%Unchanged
Jennison Associates LLC2,416,454$51.0M0.05%+114,208+5.0%Added
Paradigm Biocapital Advisors LP2,274,512$48.0M4.55%+320,000+16.4%Added
Eversept Partners, LP2,209,057$46.7M4.19%+588,344+36.3%Added
BVF Inc2,143,197$45.3M1.65%+692,000+47.7%Added
PFM Health Sciences, LP1,946,652$41.1M1.89%+132,018+7.3%Added
OrbiMed Advisors LLC1,711,675$36.2M0.72%−294,825−14.7%Reduced
Citadel Advisors LLC1,579,669$33.4M0.04%−48,184−3.0%Reduced
Dimensional Fund Advisors LP1,320,225$27.9M0.01%+54,096+4.3%Added
Geode Capital Management, LLC1,227,601$25.9M0.00%+126,572+11.5%Added
Morgan Stanley1,093,844$23.1M0.00%+944,475+632.3%Added
Sofinnova Investments, Inc.1,075,424$22.7M1.54%+372,350+53.0%Added
Aisling Capital Management LP1,025,000$21.6M10.42%00.0%Unchanged
T. Rowe Price Investment Management, Inc.1,000,715$21.1M0.02%−2,171−0.2%Reduced
Barclays PLC981,886$20.7M0.02%+18,550+1.9%Added
Nantahala Capital Management, LLC975,705$20.6M1.98%00.0%Unchanged
Braidwell LP920,049$19.4M0.64%−322,753−26.0%Reduced
Foresite Capital Management IV, LLC875,000$18.5M9.59%00.0%Unchanged
Commodore Capital LP853,884$18.0M2.75%+165,439+24.0%Added
Adage Capital Partners GP, L.L.C.790,000$16.7M0.04%−150,000−16.0%Reduced
Sphera Funds Management Ltd.683,061$14.4M3.12%−27,500−3.9%Reduced
Palo Alto Investors LP612,600$12.9M1.07%00.0%Unchanged
Northern Trust Corp594,924$12.6M0.00%+45,833+8.3%Added
Citigroup Inc560,415$11.8M0.02%+294,482+110.7%Added
JPMorgan Chase & Co549,085$11.6M0.00%+10,959+2.0%Added
Walleye Capital LLC545,090$11.5M0.23%+213,539+64.4%Added
Point72 Asset Management, L.P.524,400$11.1M0.04%−399,000−43.2%Reduced
Goldman Sachs Group Inc490,773$10.4M0.00%+52,530+12.0%Added
Lord, Abbett & Co. LLC484,666$10.2M0.04%+148,670+44.2%Added
Charles Schwab Investment Management Inc470,166$9.93M0.00%+21,425+4.8%Added
DAFNA Capital Management LLC447,073$9.44M2.83%00.0%Unchanged
Bank of America Corp395,169$8.35M0.00%+127,457+47.6%Added
683 Capital Management, LLC390,000$8.24M0.74%−180,000−31.6%Reduced
Assenagon Asset Management S.A.339,592$7.17M0.03%+329,577+3,290.8%Added
Acuta Capital Partners, LLC330,000$6.97M5.42%+5,386+1.7%Added
Ghost Tree Capital, LLC325,000$6.86M2.60%+175,000+116.7%Added
Soleus Capital Management, L.P.322,600$6.81M0.84%+102,600+46.6%Added
Rafferty Asset Management, LLC282,883$5.97M0.04%+18,121+6.8%Added
Two Sigma Advisers, LP263,352$5.56M0.01%−54,500−17.1%Reduced
Ensign Peak Advisors, Inc235,370$4.97M0.01%00.0%Unchanged
Candriam Luxembourg S.C.A.254,874$4.95M0.03%+254,874New
Bank of New York Mellon Corp211,723$4.47M0.00%+19,240+10.0%Added
Invesco Ltd.210,153$4.44M0.00%+190,006+943.1%Added
Prudential Financial Inc185,705$3.92M0.01%+46,030+33.0%Added
Panagora Asset Management Inc182,381$3.85M0.02%+3,296+1.8%Added
Macquarie Group Ltd180,000$3.80M0.00%00.0%Unchanged
Nuveen Asset Management, LLC151,237$3.19M0.00%+6,375+4.4%Added
Schonfeld Strategic Advisors LLC147,566$3.12M0.03%+138,466+1,521.6%Added
D. E. Shaw & Co., Inc.139,067$2.94M0.00%−21,368−13.3%Reduced
Twinbeech Capital LP129,524$2.74M0.06%+129,524New
Tekla Capital Management LLC117,717$2.49M0.09%00.0%Unchanged
Swiss National Bank115,700$2.44M0.00%−13,700−10.6%Reduced
BNP Paribas Arbitrage, SA115,690$2.44M0.01%+59,878+107.3%Added
Susquehanna International Group, LLP109,325$2.31M0.00%+88,637+428.4%Added
Voya Investment Management LLC109,196$2.31M0.00%+14,683+15.5%Added
Alliancebernstein L.P.108,820$2.30M0.00%00.0%Unchanged
UBS Group AG108,315$2.29M0.00%−64,470−37.3%Reduced
Crestline Management, LP95,209$2.01M0.25%+31,002+48.3%Added
Rhumbline Advisers90,854$1.92M0.00%+10,286+12.8%Added
SG Americas Securities, LLC90,137$1.90M0.03%+83,238+1,206.5%Added
Algert Global LLC85,971$1.82M0.09%+8,191+10.5%Added
State of New Jersey Common Pension Fund D83,439$1.76M0.01%+83,439New
Sowell Financial Services LLC69,748$1.47M0.11%+69,748New
California State Teachers Retirement System69,486$1.47M0.00%+1,578+2.3%Added
Two Sigma Investments, LP69,169$1.46M0.00%+69,169New
Jane Street Group, LLC63,387$1.34M0.00%+44,727+239.7%Added
Wells Fargo & Company62,924$1.33M0.00%+57,849+1,139.9%Added
ExodusPoint Capital Management, LP61,873$1.31M0.01%+61,873New
Deutsche Bank AG57,144$1.21M0.00%+13,559+31.1%Added
Credit Suisse AG55,699$1.18M0.00%+1,057+1.9%Added
UBS Asset Management Americas Inc53,682$1.13M0.00%−4,413−7.6%Reduced
Profund Advisors LLC52,605$1.11M0.07%+52,605New
State of Wisconsin Investment Board52,389$1.11M0.00%−1,058−2.0%Reduced
Engineers Gate Manager LP51,425$1.09M0.05%+51,425New
Alps Advisors Inc45,089$952.3K0.01%−317−0.7%Reduced
Trexquant Investment LP43,979$928.8K0.03%+33,436+317.1%Added
Millennium Management LLC41,728$881.0K0.00%+41,728New
FMR LLC41,541$877.3K0.00%+317+0.8%Added
Occudo Quantitative Strategies LP41,140$868.9K0.08%+41,140New
Qube Research & Technologies Ltd40,611$857.7K0.00%+40,611New
Virtu Financial LLC39,932$843.0K0.09%+39,932New
Mirae Asset Global Investments Co., Ltd.38,877$821.1K0.00%+13,430+52.8%Added
Teachers Retirement System of the State of Kentucky37,433$791.0K0.01%−3,301−8.1%Reduced
Walleye Trading LLC36,695$775.0K0.03%+25,758+235.5%Added
Inspire Advisors, LLC35,600$751.9K0.17%+35,600New
MetLife Investment Management31,629$668.0K0.00%+3,702+13.3%Added
Kiwi Wealth Investments Limited Partnership31,586$667.1K0.04%00.0%Unchanged
New York State Common Retirement Fund29,685$626.9K0.00%−7,689−20.6%Reduced
American International Group, Inc.29,039$613.3K0.00%+3,871+15.4%Added
Legal & General Group Plc29,008$612.6K0.00%+7,748+36.4%Added
Axiom Investors LLC28,195$595.5K0.01%+28,195New
Principal Financial Group Inc27,735$585.8K0.00%+417+1.5%Added
DekaBank Deutsche Girozentrale28,300$572.0K0.00%00.0%Unchanged