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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 2021

Institutional positions in Syndax Pharmaceuticals Inc as of Dec 31, 2021. 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
132
+10 vs. Q3 2021
Shares held
52.4M
+3.36M (+6.8%) vs. Q3 2021
Total value
$1.15B
+$209.0M (+22.3%) vs. Q3 2021
New holders
30
42 more added
Sold out
20
34 more reduced

1 institution that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2021: 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 2021: 132 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 2021: $1.15B
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 2021

Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q3 2021.

Institutions holding SNDX in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Cypress Capital Management LLC (WY)5$00.00%00.0%Unchanged
Parallel Advisors, LLC13$00.00%+13New
The PNC Financial Services Group, Inc.98$2.00K0.00%00.0%Unchanged
Daiwa Securities Group Inc.167$4.00K0.00%00.0%Unchanged
TCI Wealth Advisors, Inc.246$5.00K0.00%+246New
Advisor Group Holdings, Inc.250$5.00K0.00%+250New
Captrust Financial Advisors311$7.00K0.00%00.0%Unchanged
Cowen and Company, LLC377$8.00K0.00%+377New
American Portfolios Advisors400$8.76K0.00%00.0%Unchanged
Aquatic Capital Management LLC500$11.0K0.02%+500New
Nisa Investment Advisors, LLC2,160$35.0K0.00%−240−10.0%Reduced
State of Wyoming1,752$38.0K0.02%+172+10.9%Added
Great West Life Assurance Co1,820$40.0K0.00%00.0%Unchanged
High Net Worth Advisory Group LLC2,000$44.0K0.02%+2,000New
Cross Creek Advisors, LLC2,649$51.0K0.04%+2,649New
Simplex Trading, LLC2,435$53.0K0.00%+2,435New
Ameritas Investment Partners, Inc.3,525$77.0K0.00%00.0%Unchanged
Lazard Asset Management LLC4,014$87.0K0.00%+4,014New
US Bancorp4,330$95.0K0.00%00.0%Unchanged
Optiver Holding B.V.5,147$98.0K0.00%00.0%Unchanged
Quantbot Technologies LP5,346$117.0K0.01%+5,346New
SG Americas Securities, LLC5,524$121.0K0.00%−22,726−80.4%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)6,306$138.0K0.00%−176−2.7%Reduced
Tower Research Capital LLC (TRC)7,093$155.0K0.00%+2,192+44.7%Added
Royal Bank of Canada8,731$192.0K0.00%+8,276+1,818.9%Added
Virtus ETF Advisers LLC9,238$202.0K0.08%−2,003−17.8%Reduced
Blueshift Asset Management, LLC9,860$216.0K0.02%+9,860New
Wedbush Securities Inc10,000$219.0K0.01%00.0%Unchanged
Arizona State Retirement System10,470$229.0K0.00%−44−0.4%Reduced
Marshall Wace, LLP11,637$254.0K0.00%00.0%Unchanged
Schonfeld Strategic Advisors LLC12,300$269.0K0.00%−63,300−83.7%Reduced
Legal & General Group Plc12,493$273.0K0.00%00.0%Unchanged
State Board of Administration of Florida Retirement System12,798$280.0K0.00%+849+7.1%Added
Metropolitan Life Insurance Co13,057$285.8K0.00%00.0%Unchanged
Voloridge Investment Management, LLC13,829$303.0K0.00%+13,829New
ProShare Advisors LLC16,785$367.0K0.00%+634+3.9%Added
MetLife Investment Management17,053$373.3K0.00%00.0%Unchanged
Invesco Ltd.17,608$386.0K0.00%−2,385−11.9%Reduced
Voya Investment Management LLC17,793$389.0K0.00%−40.0%Reduced
Millennium Management LLC18,762$411.0K0.00%−18,089−49.1%Reduced
Principle Wealth Partners LLC20,500$449.0K0.05%00.0%Unchanged
Jane Street Group, LLC21,778$477.0K0.00%+21,778New
Los Angeles Capital Management LLC22,844$500.0K0.00%00.0%Unchanged
Manufacturers Life Insurance Company, The23,256$509.0K0.00%−628−2.6%Reduced
Engineers Gate Manager LP23,298$510.0K0.02%+23,298New
Maven Securities LTD23,529$515.0K0.06%+23,529New
American International Group, Inc.23,896$523.0K0.00%−714−2.9%Reduced
DekaBank Deutsche Girozentrale25,700$534.0K0.00%+700+2.8%Added
Sigma Planning Corp24,590$538.0K0.02%−200−0.8%Reduced
Laurion Capital Management LP25,000$547.0K0.01%+25,000New
Wells Fargo & Company26,162$572.0K0.00%+20,711+379.9%Added
Caas Capital Management LP26,376$577.0K0.05%+26,376New
Parametric Portfolio Associates LLC27,826$609.0K0.00%+1,126+4.2%Added
Deutsche Bank AG30,083$659.0K0.00%+1,366+4.8%Added
Credit Suisse AG30,604$670.0K0.00%+3,993+15.0%Added
Algert Global LLC31,586$691.0K0.09%+31,586New
Alliancebernstein L.P.32,200$705.0K0.00%00.0%Unchanged
New York State Common Retirement Fund32,371$709.0K0.00%−94−0.3%Reduced
Ergoteles LLC34,997$766.0K0.03%−12,071−25.6%Reduced
Cubist Systematic Strategies, LLC37,598$823.0K0.01%+21,205+129.4%Added
HighVista Strategies LLC38,347$839.0K0.67%−7,237−15.9%Reduced
UBS Asset Management Americas Inc38,872$850.9K0.00%00.0%Unchanged
Brookfield Asset Management Inc.41,931$918.0K0.00%+41,931New
Caption Management, LLC46,226$1.01M0.06%+46,226New
Ghisallo Capital Management LLC50,000$1.09M0.05%+50,000New
Teachers Retirement System of the State of Kentucky50,610$1.11M0.01%00.0%Unchanged
Jump Financial, LLC55,613$1.22M0.08%+55,613New
Rhumbline Advisers56,723$1.24M0.00%−776−1.3%Reduced
California State Teachers Retirement System57,318$1.25M0.00%+1,471+2.6%Added
State of Wisconsin Investment Board58,200$1.27M0.00%−16,400−22.0%Reduced
Alps Advisors Inc58,179$1.27M0.01%−1,414−2.4%Reduced
Ensign Peak Advisors, Inc60,737$1.33M0.00%−137,865−69.4%Reduced
BNP Paribas Arbitrage, SA68,399$1.50M0.00%+57,779+544.1%Added
Allianz Asset Management GmbH74,230$1.62M0.00%+74,230New
Swiss National Bank85,300$1.87M0.00%00.0%Unchanged
Gyon Technologies Capital Management, LP90,934$1.99M0.37%−1,451−1.6%Reduced
Susquehanna International Group, LLP91,528$2.00M0.00%−242,278−72.6%Reduced
Silverarc Capital Management, LLC100,000$2.19M0.98%+100,000New
Baker Bros. Advisors LP110,729$2.42M0.01%00.0%Unchanged
Walleye Trading LLC111,382$2.44M0.04%+99,783+860.3%Added
D. E. Shaw & Co., Inc.123,303$2.70M0.00%−213,843−63.4%Reduced
Citigroup Inc130,087$2.85M0.00%+76,023+140.6%Added
Nuveen Asset Management, LLC163,861$2.93M0.00%−10,809−6.2%Reduced
UBS Group AG140,517$3.08M0.00%+70,004+99.3%Added
Rafferty Asset Management, LLC157,832$3.46M0.02%+84,100+114.1%Added
Bank of New York Mellon Corp166,572$3.65M0.00%−1,778−1.1%Reduced
JPMorgan Chase & Co170,473$3.73M0.00%+95,491+127.4%Added
Affinity Asset Advisors, LLC175,000$3.83M1.63%+175,000New
Macquarie Group Ltd180,991$3.96M0.00%00.0%Unchanged
FMR LLC187,349$4.10M0.00%+187,349New
Bank of America Corp188,937$4.13M0.00%+98,760+109.5%Added
Panagora Asset Management Inc200,842$4.40M0.02%−3,339−1.6%Reduced
Acuta Capital Partners, LLC206,126$4.51M1.90%00.0%Unchanged
Morgan Stanley277,476$6.07M0.00%+24,337+9.6%Added
Assenagon Asset Management S.A.283,954$6.22M0.02%+283,954New
Lord, Abbett & Co. LLC288,052$6.30M0.01%−2,792−1.0%Reduced
DAFNA Capital Management LLC296,535$6.49M1.63%+215,833+267.4%Added
Ghost Tree Capital, LLC300,000$6.57M2.51%−275,000−47.8%Reduced
Charles Schwab Investment Management Inc305,996$6.70M0.00%+3,469+1.1%Added
Woodline Partners LP310,377$6.79M0.10%−270,931−46.6%Reduced