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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 2022

Institutional positions in Syndax Pharmaceuticals Inc as of Dec 31, 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
160
+22 vs. Q3 2022
Shares held
71.4M
+11.5M (+19.2%) vs. Q3 2022
Total value
$1.82B
+$377.2M (+26.2%) vs. Q3 2022
New holders
32
65 more added
Sold out
10
41 more reduced

1 institution that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2022: 160 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 2022: $1.82B
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 2022

Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q3 2022.

Institutions holding SNDX in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Wellington Management Group LLP7,983,442$203.2M0.04%+3,596,002+82.0%Added
Avidity Partners Management LP5,861,000$149.2M3.49%+274,100+4.9%Added
BlackRock Inc.4,352,032$110.8M0.00%+212,415+5.1%Added
Frazier Life Sciences Management, L.P.3,708,838$94.4M5.87%+296,000+8.7%Added
State Street Corp3,648,463$92.9M0.01%+1,031,026+39.4%Added
Vanguard Group Inc3,363,450$85.6M0.00%+561,151+20.0%Added
Avoro Capital Advisors LLC2,650,000$67.4M1.01%+427,778+19.3%Added
Kynam Capital Management, LP2,561,187$65.2M10.00%+288,272+12.7%Added
Jennison Associates LLC2,302,246$58.6M0.06%+652,451+39.5%Added
OrbiMed Advisors LLC2,006,500$51.1M0.98%00.0%Unchanged
Paradigm Biocapital Advisors LP1,954,512$49.7M5.84%+869,370+80.1%Added
PFM Health Sciences, LP1,814,634$46.2M1.95%+525,561+40.8%Added
Citadel Advisors LLC1,627,853$41.4M0.05%+261,082+19.1%Added
Eversept Partners, LP1,620,713$41.2M3.92%+409,279+33.8%Added
BVF Inc1,451,197$36.9M1.56%−346,888−19.3%Reduced
Dimensional Fund Advisors LP1,266,129$32.2M0.01%+143,677+12.8%Added
Braidwell LP1,242,802$31.6M1.06%+1,242,802New
Geode Capital Management, LLC1,101,029$28.0M0.00%+132,900+13.7%Added
Aisling Capital Management LP1,025,000$26.1M17.22%00.0%Unchanged
T. Rowe Price Investment Management, Inc.1,002,886$25.5M0.02%+79,660+8.6%Added
Nantahala Capital Management, LLC975,705$24.8M2.24%−399,723−29.1%Reduced
Barclays PLC963,336$24.5M0.02%+687,577+249.3%Added
Adage Capital Partners GP, L.L.C.940,000$23.9M0.06%−310,000−24.8%Reduced
Point72 Asset Management, L.P.923,400$23.5M0.09%+923,400New
Foresite Capital Management IV, LLC875,000$22.3M9.51%+185,000+26.8%Added
Sphera Funds Management Ltd.710,561$18.1M5.68%−112,135−13.6%Reduced
Sofinnova Investments, Inc.703,074$17.9M1.09%+178,072+33.9%Added
Commodore Capital LP688,445$17.5M2.64%−49,665−6.7%Reduced
Palo Alto Investors LP612,600$15.6M1.33%00.0%Unchanged
683 Capital Management, LLC570,000$14.5M1.31%−560,000−49.6%Reduced
Northern Trust Corp549,091$14.0M0.00%+45,129+9.0%Added
JPMorgan Chase & Co538,126$13.7M0.00%−78,125−12.7%Reduced
Deep Track Capital, LP500,000$12.7M0.55%+500,000New
Charles Schwab Investment Management Inc448,741$11.4M0.00%+63,620+16.5%Added
DAFNA Capital Management LLC447,073$11.4M3.20%+91,586+25.8%Added
Goldman Sachs Group Inc438,243$11.2M0.00%−129,838−22.9%Reduced
Iron Triangle Partners LP370,294$9.42M1.69%+370,294New
Ghisallo Capital Management LLC350,000$8.91M1.59%+350,000New
Caas Capital Management LP344,168$8.76M1.68%+344,168New
Lord, Abbett & Co. LLC335,996$8.55M0.03%+1,033+0.3%Added
Walleye Capital LLC331,551$8.44M0.18%+331,551New
Acuta Capital Partners, LLC324,614$8.26M5.08%00.0%Unchanged
Two Sigma Advisers, LP317,852$8.09M0.02%−53,900−14.5%Reduced
Bank of America Corp267,712$6.81M0.00%−34,416−11.4%Reduced
Citigroup Inc265,933$6.77M0.01%−265,053−49.9%Reduced
Rafferty Asset Management, LLC264,762$6.74M0.06%+118,380+80.9%Added
Ensign Peak Advisors, Inc235,370$5.99M0.01%+24,002+11.4%Added
Soleus Capital Management, L.P.220,000$5.60M0.80%+220,000New
Bank of New York Mellon Corp192,483$4.90M0.00%+3,289+1.7%Added
Macquarie Group Ltd180,000$4.58M0.01%00.0%Unchanged
Panagora Asset Management Inc179,085$4.56M0.03%+110,282+160.3%Added
UBS Group AG172,785$4.40M0.00%−112,747−39.5%Reduced
Norges Bank169,100$4.30M0.00%−19,100−10.1%Reduced
D. E. Shaw & Co., Inc.160,435$4.08M0.01%+32,407+25.3%Added
Ghost Tree Capital, LLC150,000$3.82M1.63%−50,000−25.0%Reduced
Morgan Stanley149,369$3.80M0.00%−9,202−5.8%Reduced
Nuveen Asset Management, LLC144,862$3.69M0.00%−21,015−12.7%Reduced
Prudential Financial Inc139,675$3.55M0.01%+34,005+32.2%Added
Swiss National Bank129,400$3.29M0.00%+16,100+14.2%Added
Tekla Capital Management LLC117,717$3.00M0.11%+117,717New
Alliancebernstein L.P.108,820$2.77M0.00%00.0%Unchanged
Alyeska Investment Group, L.P.100,000$2.54M0.03%+100,000New
Affinity Asset Advisors, LLC100,000$2.54M1.17%+100,000New
Voya Investment Management LLC94,513$2.41M0.00%00.0%Unchanged
Renaissance Technologies LLC81,200$2.07M0.00%+81,200New
Rhumbline Advisers80,568$2.05M0.00%+1,780+2.3%Added
Algert Global LLC77,780$1.98M0.11%+28,880+59.1%Added
HealthCor Management, L.P.70,000$1.78M1.63%−789,240−91.9%Reduced
Gyon Technologies Capital Management, LP68,195$1.74M0.65%+35,226+106.8%Added
California State Teachers Retirement System67,908$1.73M0.00%+5,768+9.3%Added
Crestline Management, LP64,207$1.63M0.24%+656+1.0%Added
Susquehanna Fundamental Investments, LLC61,514$1.57M0.03%+16,270+36.0%Added
UBS Asset Management Americas Inc58,095$1.48M0.00%+14,792+34.2%Added
BNP Paribas Arbitrage, SA55,812$1.42M0.00%−10,465−15.8%Reduced
Credit Suisse AG54,642$1.39M0.00%+9,443+20.9%Added
State of Wisconsin Investment Board53,447$1.36M0.00%+7,234+15.7%Added
EAM Global Investors LLC52,101$1.33M0.34%−24,521−32.0%Reduced
Martingale Asset Management L P46,315$1.18M0.02%+679+1.5%Added
Alps Advisors Inc45,406$1.16M0.01%+14,554+47.2%Added
Deutsche Bank AG43,585$1.11M0.00%+16,705+62.1%Added
FMR LLC41,224$1.05M0.00%−124,649−75.1%Reduced
Teachers Retirement System of the State of Kentucky40,734$1.04M0.01%00.0%Unchanged
Russell Investments Group, Ltd.39,595$1.01M0.00%+39,595New
New York State Common Retirement Fund37,374$951.2K0.00%+120.0%Added
EAM Investors, LLC35,391$900.7K0.19%−16,777−32.2%Reduced
Raymond James Financial Services Advisors, Inc.34,597$880.5K0.00%+34,597New
Ziegler Capital Management, LLC33,687$857.3K0.04%−7,926−19.0%Reduced
Kiwi Wealth Investments Limited Partnership31,586$803.9K0.05%+31,586New
MetLife Investment Management27,927$710.7K0.01%+898+3.3%Added
Principal Financial Group Inc27,318$695.2K0.00%+15,280+126.9%Added
DekaBank Deutsche Girozentrale28,300$683.0K0.00%00.0%Unchanged
Sigma Planning Corp25,940$660.2K0.02%+300+1.2%Added
Mirae Asset Global Investments Co., Ltd.25,447$647.6K0.00%+1,957+8.3%Added
AQR Capital Management LLC25,175$640.7K0.00%+3,246+14.8%Added
American International Group, Inc.25,168$640.5K0.00%−93−0.4%Reduced
STRS Ohio24,900$633.0K0.00%00.0%Unchanged
Victory Capital Management Inc21,904$557.5K0.00%−6,160−21.9%Reduced
Legal & General Group Plc21,260$541.1K0.00%+2,044+10.6%Added
Susquehanna International Group, LLP20,688$526.5K0.00%−35,401−63.1%Reduced
BIT Capital GmbH20,681$526.3K0.11%−80−0.4%Reduced