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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 2022

Institutional positions in Syndax Pharmaceuticals Inc as of Jun 30, 2022. 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
121
−11 vs. Q1 2022
Shares held
55.2M
+764.6K (+1.4%) vs. Q1 2022
Total value
$1.06B
+$116.1M (+12.3%) vs. Q1 2022
New holders
13
48 more added
Sold out
24
36 more reduced

4 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2022: 121 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 2022: $1.06B
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 2022

Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q1 2022.

Institutions holding SNDX in Q2 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Avidity Partners Management LP5,450,000$104.9M2.41%+626,600+13.0%Added
BlackRock Inc.3,795,909$73.0M0.00%−2,241−0.1%Reduced
Wellington Management Group LLP3,206,866$61.7M0.01%+1,372,936+74.9%Added
Frazier Life Sciences Management, L.P.3,195,403$61.5M5.80%00.0%Unchanged
Vanguard Group Inc2,780,903$53.5M0.00%+348,465+14.3%Added
Nantahala Capital Management, LLC2,663,087$51.2M4.44%−29,216−1.1%Reduced
Kynam Capital Management, LP2,512,240$48.3M12.47%+579,440+30.0%Added
State Street Corp2,435,517$46.9M0.00%+55,180+2.3%Added
BVF Inc2,356,934$45.3M2.19%−37,780−1.6%Reduced
OrbiMed Advisors LLC2,323,300$44.7M0.87%+165,000+7.6%Added
Avoro Capital Advisors LLC2,222,222$42.8M0.84%+1,722+0.1%Added
Citadel Advisors LLC1,729,052$33.3M0.05%−96,388−5.3%Reduced
683 Capital Management, LLC1,581,653$30.4M2.20%00.0%Unchanged
Adage Capital Partners GP, L.L.C.1,237,300$23.8M0.05%+158,659+14.7%Added
Sphera Funds Management Ltd.1,139,329$21.9M4.16%−138,084−10.8%Reduced
Deerfield Management Company, L.P. (Series C)1,111,111$21.4M0.45%+1,111,111New
Aisling Capital Management LP1,025,000$19.7M14.07%00.0%Unchanged
Eversept Partners, LP994,362$19.1M1.87%+994,362New
Dimensional Fund Advisors LP961,106$18.5M0.01%+76,772+8.7%Added
HealthCor Management, L.P.923,400$17.8M1.83%−257,100−21.8%Reduced
Geode Capital Management, LLC907,856$17.5M0.00%+52,441+6.1%Added
Paradigm Biocapital Advisors LP876,156$16.9M3.36%+174,800+24.9%Added
Palo Alto Investors LP612,600$11.8M1.03%00.0%Unchanged
JPMorgan Chase & Co594,302$11.4M0.00%+354,473+147.8%Added
PFM Health Sciences, LP580,768$11.2M0.44%−1,462,609−71.6%Reduced
Goldman Sachs Group Inc546,239$10.5M0.00%+137,976+33.8%Added
Phoenix Holdings Ltd.525,856$10.1M0.21%00.0%Unchanged
Northern Trust Corp487,913$9.39M0.00%+1,685+0.3%Added
Citigroup Inc463,979$8.93M0.01%+439,793+1,818.4%Added
Sofinnova Investments, Inc.413,428$7.95M0.71%−303,636−42.3%Reduced
DAFNA Capital Management LLC370,987$7.14M1.95%−1,000−0.3%Reduced
Charles Schwab Investment Management Inc356,905$6.87M0.00%+15,601+4.6%Added
Two Sigma Advisers, LP352,852$6.79M0.02%−15,500−4.2%Reduced
UBS Group AG316,675$6.09M0.00%+101,511+47.2%Added
Lord, Abbett & Co. LLC314,914$6.06M0.02%+21,565+7.4%Added
Morgan Stanley291,677$5.61M0.00%−406,024−58.2%Reduced
Ghost Tree Capital, LLC225,000$4.33M2.98%00.0%Unchanged
Assenagon Asset Management S.A.210,744$4.05M0.02%+210,744New
Panagora Asset Management Inc206,818$3.98M0.03%−3,017−1.4%Reduced
Acuta Capital Partners, LLC205,003$3.94M2.21%−1,123−0.5%Reduced
Macquarie Group Ltd180,991$3.48M0.00%00.0%Unchanged
Bank of New York Mellon Corp167,187$3.22M0.00%−9,204−5.2%Reduced
Nuveen Asset Management, LLC165,842$3.19M0.00%+2,252+1.4%Added
Ensign Peak Advisors, Inc126,191$2.43M0.01%+65,454+107.8%Added
FMR LLC125,656$2.42M0.00%−63,087−33.4%Reduced
Baker Bros. Advisors LP110,729$2.13M0.01%00.0%Unchanged
Allianz Asset Management GmbH108,655$2.09M0.00%+9,145+9.2%Added
Silverarc Capital Management, LLC107,852$2.08M0.97%+6,405+6.3%Added
Swiss National Bank105,200$2.02M0.00%+11,800+12.6%Added
Two Sigma Investments, LP94,474$1.82M0.01%−129,584−57.8%Reduced
Gyon Technologies Capital Management, LP78,182$1.50M0.42%+30,929+65.5%Added
Rafferty Asset Management, LLC77,904$1.50M0.01%−52,575−40.3%Reduced
Bank of America Corp75,634$1.46M0.00%−38,021−33.5%Reduced
Rhumbline Advisers71,266$1.37M0.00%+13,027+22.4%Added
Crestline Management, LP60,551$1.17M0.15%−2,965−4.7%Reduced
California State Teachers Retirement System60,462$1.16M0.00%+5,468+9.9%Added
ExodusPoint Capital Management, LP60,357$1.16M0.02%+40,684+206.8%Added
Tekla Capital Management LLC56,480$1.09M0.04%00.0%Unchanged
Algert Global LLC54,714$1.05M0.08%+13,180+31.7%Added
UBS Asset Management Americas Inc46,257$890.0K0.00%+7,385+19.0%Added
State of Wisconsin Investment Board43,574$838.0K0.00%−14,626−25.1%Reduced
Alliancebernstein L.P.42,400$816.0K0.00%+10,100+31.3%Added
Ziegler Capital Management, LLC41,857$805.0K0.03%+41,857New
AQR Capital Management LLC35,358$680.0K0.00%+11,607+48.9%Added
New York State Common Retirement Fund35,148$676.0K0.00%+2,754+8.5%Added
Alps Advisors Inc33,356$642.0K0.01%−23,180−41.0%Reduced
Credit Suisse AG32,732$630.0K0.00%+3,093+10.4%Added
Deutsche Bank AG32,464$625.0K0.00%+1,391+4.5%Added
SG Americas Securities, LLC29,307$564.0K0.01%+4,808+19.6%Added
DekaBank Deutsche Girozentrale28,300$529.0K0.00%00.0%Unchanged
MetLife Investment Management27,029$520.0K0.00%00.0%Unchanged
STRS Ohio24,900$479.0K0.00%+1,400+6.0%Added
Millennium Management LLC24,601$473.0K0.00%−401,512−94.2%Reduced
American International Group, Inc.24,221$466.0K0.00%−148−0.6%Reduced
Sigma Planning Corp23,840$459.0K0.02%−750−3.1%Reduced
Invesco Ltd.22,535$434.0K0.00%+4,779+26.9%Added
Victory Capital Management Inc21,408$412.0K0.00%+1,582+8.0%Added
Manufacturers Life Insurance Company, The20,435$393.2K0.00%+1,138+5.9%Added
Voya Investment Management LLC19,220$370.0K0.00%+1,427+8.0%Added
Legal & General Group Plc17,472$336.0K0.00%+4,107+30.7%Added
PEAK6 Investments LLC16,000$334.9K0.01%+16,000New
Mirae Asset Global Investments Co., Ltd.16,235$313.0K0.00%+16,235New
Principle Wealth Partners LLC14,000$269.0K0.03%−6,500−31.7%Reduced
State Board of Administration of Florida Retirement System12,808$246.0K0.00%+10+0.1%Added
BNP Paribas Arbitrage, SA12,612$242.7K0.00%−25,247−66.7%Reduced
Arizona State Retirement System12,105$233.0K0.00%+1,424+13.3%Added
Marshall Wace, LLP11,637$224.0K0.00%−97,981−89.4%Reduced
Gsa Capital Partners LLP11,542$222.0K0.03%−31,758−73.3%Reduced
Voloridge Investment Management, LLC10,422$201.0K0.00%−110,609−91.4%Reduced
ProShare Advisors LLC10,193$195.0K0.00%−4,443−30.4%Reduced
Martingale Asset Management L P10,125$195.0K0.00%+10,125New
Wedbush Securities Inc10,000$192.0K0.01%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)8,460$163.0K0.00%+3,187+60.4%Added
Amalgamated Bank6,936$133.0K0.00%+1,056+18.0%Added
Virtus ETF Advisers LLC6,584$127.0K0.05%−2,139−24.5%Reduced
Wells Fargo & Company6,395$122.0K0.00%−4,999−43.9%Reduced
Tower Research Capital LLC (TRC)5,745$111.0K0.00%+3,434+148.6%Added
Barclays PLC4,591$88.0K0.00%−69,643−93.8%Reduced
US Bancorp4,330$83.0K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.3,525$67.0K0.00%00.0%Unchanged