Skip to content
Disclosery

SNDX SYNDAX PHARMACEUTICALS INC

Follow

COM (common), issuer CIK 1395937

239 managers (247 13F filers) reported a position in SNDX shares at 2026-03-31, 99,424,395 shares in all. 38 filers opened a position and 25 filers sold out during the quarter.

Managers
239
13F filers
247
New
38
Added
99
Reduced
68
Sold out
25
Shares held by filers
99,424,395

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.8,254,426$193M<0.01%+15,42413F-HRTimelineGroup
Kynam Capital Management, LP8,050,959$188M11.94%013F-HRTimeline
VANGUARD GROUP INCgroup of 6 filers holding6,269,334$146MnewTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC4,996,787$117M0.02%-698,58813F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP4,430,076$103M<0.01%-166,47613F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/4,249,836$99.3M0.01%-460,91013F-HRTimelineGroup
DEERFIELD MANAGEMENT COMPANY, L.P.in group DEERFIELD MANAGEMENT COMPANY,…3,779,900$88.3M1.04%new13F-HRTimelineGroup
Eversept Partners, LP2,885,622$67.4M4.44%-428,78613F-HRTimeline
KINGDON CAPITAL MANAGEMENT, L.L.C.2,500,000$58.4M9.78%+150,00013F-HRTimeline
Hood River Capital Management LLC2,354,285$55M0.55%+37,73213F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,157,058$50.4M<0.01%+66,12613F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources2,150,079$50.2M0.01%-271,58713F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.1,985,547$46.4M0.08%-2,896,50613F-HRTimelineGroup
Elmind Capital, LP1,855,000$43.3M12.3%013F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,732,541$40.5M0.05%+356,86013F-HRTimelineGroup
Soleus Capital Management, L.P.1,726,908$40.3M1.63%-520,20213F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.1,601,896$37.4M0.03%+382,28713F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP1,579,596$36.9M0.03%+432,66013F-HRTimelineGroup
Nuveen, LLCin group TIAA1,494,645$34.9M0.01%+11,64313F-HRTimelineGroup
MPM BIOIMPACT LLC1,340,733$31.3M2.42%+3,03113F-HRTimeline
Aisling Capital Management LP1,316,806$30.8M6.46%013F-HRTimeline
UBS Group AGgroup of 2 filers holding1,303,459$30.4M+444,833Timeline
Woodline Partners LP1,250,760$29.2M0.11%+9213F-HR/ATimeline
STEMPOINT CAPITAL LP1,215,743$28.4M5.46%-123,63613F-HR/ATimeline
Catalio Capital Management, LP1,043,670$24.4M5.09%-153,13713F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp1,004,498$23.5M<0.01%-89,65313F-HRTimelineGroup
Ensign Peak Advisors, Inc990,969$23.1M0.04%-607,57513F-HR/ATimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC980,314$22.9M0.01%+54,34013F-HRTimelineGroup
ORBIMED ADVISORS LLCin group ORBIMED ADVISORS LLC962,300$22.5M0.49%new13F-HRTimelineGroup
ALGERT GLOBAL LLC928,568$21.7M0.33%+48013F-HR/ATimeline
Candriam S.C.A.925,332$21.6M0.11%013F-HRTimeline
Parkman Healthcare Partners LLC901,511$21.1M2.18%+327,48813F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY893,933$20.9M<0.01%-181,56813F-HRTimelineGroup
SILVERARC CAPITAL MANAGEMENT, LLCin group SILVERARC CAPITAL MANAGEMENT,…888,987$20.8M2.45%+246,08813F-HRTimelineGroup
Palo Alto Investors LP864,986$20.2M3.09%+70,47913F-HRTimeline
Prosight Management, LP770,000$18M2.95%+105,00013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP755,719$17.7M<0.01%+26,79813F-HRTimelineGroup
SPHERA FUNDS MANAGEMENT LTD.in group SPHERA FUNDS MANAGEMENT LTD.724,563$16.9M2.91%-38,00013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co715,153$16.7M<0.01%-12,27113F-HRTimelineGroup
Trails Edge Capital Partners, LP701,821$16.4M3.86%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC630,942$14.7M0.01%+446,93913F-HRTimelineGroup
Apis Capital Advisors, LLC550,000$12.8M1.98%-174,00013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC498,200$11.6M0.02%-46,60013F-HRTimeline
Knott David M Jr422,000$9.86M5.87%+7,00013F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding385,389$9M+361,184Timeline
Rhenman & Partners Asset Management AB379,250$8.86M1.09%-107,75013F-HRTimeline
Integral Health Asset Management, LLC350,000$8.18M0.43%+150,00013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC335,531$7.84M0.01%-413,38913F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…331,665$7.75M0.01%+194,03613F-HRTimeline
Granahan Investment Management, LLC306,321$7.16M0.35%-60,47213F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc286,969$6.7M0.01%-85,82313F-HRTimelineGroup
SECTOR GAMMA AS286,007$6.68M1.58%+33,94513F-HRTimeline
Pale Fire Capital SEin group Pale Fire Capital284,460$6.64M0.58%013F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC284,245$6.64M<0.01%+1,65813F-HR/ATimelineGroup
Schonfeld Strategic Advisors LLC260,626$6.09M0.05%+247,52613F-HRTimeline
ALLIANCEBERNSTEIN L.P.288,567$6.06M<0.01%+193,68713F-HRTimeline
Invesco Ltd.in group Invesco Ltd.252,761$5.9M<0.01%+92,23613F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC249,407$5.83M0.02%+124,30813F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO258,519$5.81M<0.01%-119,98513F-HR/ATimelineGroup
PFM Health Sciences, LP245,021$5.72M0.6%+2,05413F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD229,600$5.36M<0.01%013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO217,600$5.08M<0.01%+57,96213F-HRTimelineGroup
DAFNA Capital Management LLC217,355$5.08M1.16%-60,50013F-HRTimeline
Hennion & Walsh Asset Management, Inc.214,807$5.02M0.17%+31,00513F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…204,845$4.79M0.05%-310,28413F-HRTimelineGroup
Pinnacle Financial Partners, Inc.in group Pinnacle Financial Partners, …202,282$4.73M0.04%-4,31913F-HRTimelineGroup
Trexquant Investment LP201,777$4.71M0.03%+114,26313F-HRTimeline
Vienna Powszechne Towarzystwo Emerytaln…200,000$4.67M1.78%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC199,524$4.66M<0.01%+147,58713F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC198,985$4.65M0.74%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…196,621$4.59M0.01%+178,46813F-HRTimelineGroup
Man Group plcin group Man Group plc182,016$4.25M0.01%+137,37813F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC181,552$4.24M0.01%+161,73813F-HRTimelineGroup
NOMURA ASSET MANAGEMENT INTERNATIONAL I…in group NOMURA ASSET MANAGEMENT CO LTD180,000$4.21M0.01%013F-HRTimelineGroup
FMR LLCin group FMR LLC173,993$4.06M<0.01%+33,43313F-HRTimelineGroup
Swiss National Bank161,400$3.77M<0.01%013F-HRTimeline
Atom Investors LP155,965$3.64M0.26%+14,29913F-HRTimeline
CAPITAL FUND MANAGEMENT S.A.145,566$3.4M0.03%-88,30513F-HRTimeline
Rafferty Asset Management, LLC124,723$2.91M0.01%-37,22013F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…123,586$2.89M<0.01%+87,95613F-HRTimelineGroup
Cinctive Capital Management LP117,319$2.74M0.18%new13F-HRTimeline
RHUMBLINE ADVISERS114,762$2.68M<0.01%-4,03713F-HRTimeline
IEQ CAPITAL, LLC109,623$2.56M0.01%+9,74713F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/107,133$2.5M<0.01%+12,30413F-HRTimeline
ExodusPoint Capital Management, LP105,051$2.45M0.02%-449,71013F-HRTimeline
Torray Investment Partners LLC104,868$2.45M0.36%+7,06613F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…103,009$2.41M<0.01%+24,81013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…101,492$2.37M<0.01%+11,85313F-HRTimelineGroup
Yelin Lapidot Holdings Management Ltd.in group Yelin Lapidot Holdings Manage…96,297$2.25M0.47%-12,08013F-HRTimelineGroup
TWINBEECH CAPITAL LP90,006$2.1M0.22%+37,10613F-HRTimeline
HRT FINANCIAL LP88,904$2.08M0.01%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN80,394$1.88M<0.01%-80,45613F-HR/ATimelineGroup
XTX Topco Ltdin group XTX Topco Ltd79,007$1.85M0.03%+60,53113F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\74,983$1.75M<0.01%+8,37513F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC73,199$1.71M<0.01%+18,21213F-HRTimelineGroup
Aquatic Capital Management LLC69,083$1.61M0.05%+67,04013F-HRTimeline
TUDOR INVESTMENT CORP ET AL69,059$1.61M0.01%+21,63813F-HRTimeline
SummitTX Capital, L.P.66,340$1.55M0.05%+27,21313F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC65,326$1.53M<0.01%new13F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…62,330$1.46M0.01%-102,67013F-HRTimelineGroup
Pavaki Capital Management LLC60,000$1.4M0.98%013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc59,058$1.38M<0.01%-19,17813F-HRTimelineGroup
Tema ETFs LLC58,348$1.36M0.09%-41,70513F-HRTimeline
PROFUND ADVISORS LLC55,904$1.31M0.05%-4,13413F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP54,274$1.27M<0.01%new13F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding53,827$1.25M+559Timeline
Neo Ivy Capital Management53,149$1.24M0.33%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC53,077$1.24M<0.01%-50513F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC50,323$1.18M<0.01%-264,34913F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP48,554$1.13M0.07%+26,03113F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…46,838$1.09M0.01%-2,89413F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD45,846$1.07M<0.01%+5,08513F-HRTimeline
Clearline Capital LP43,413$1.01M0.08%013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC41,872$978K<0.01%+17,06613F-HRTimelineGroup
Assenagon Asset Management S.A.41,737$975K<0.01%013F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP41,714$974K<0.01%-34,20013F-HRTimelineGroup
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…41,445$968K0.27%+7,89613F-HRTimelineGroup
Legato Capital Management LLC41,376$967K0.09%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS40,381$943K<0.01%+26,15313F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …39,904$932K<0.01%+14,44313F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson39,335$920K<0.01%013F-HR/ATimelineGroup
Cerity Partners LLCin group Cerity Partners LLC39,083$913K<0.01%+10,22713F-HRTimelineGroup
SG Americas Securities, LLC38,548$900K<0.01%-90,67913F-HRTimeline
Engineers Gate Manager LP38,408$897K0.01%+12,14313F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC38,331$895K<0.01%+28,62413F-HRTimeline
Palumbo Wealth Management LLC37,183$869K0.21%-14,18513F-HRTimeline
CWM, LLCin group CWM, LLC37,046$865K<0.01%+5,13413F-HRTimelineGroup
HighTower Advisors, LLC37,031$865K<0.01%+18,09113F-HRTimeline
WESBANCO BANK INC37,000$864K0.02%013F-HRTimeline
Voleon Capital Management LP36,633$856K0.02%new13F-HRTimeline
Qube Research & Technologies Ltd36,047$842K<0.01%-652,09013F-HRTimeline
Lion Point Capital, LP36,000$841K5.03%013F-HRTimeline
SECTORAL ASSET MANAGEMENT INC31,680$787K0.65%-29,52013F-HRTimeline
Caitong International Asset Management …33,197$775K0.14%new13F-HRTimeline
Creative Planningin group Creative Planning31,902$745K<0.01%+7,19113F-HRTimelineGroup
Bridgefront Capital, LLC31,101$727K0.18%+11,34913F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC30,300$708K0.01%-10,49313F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC28,538$667K<0.01%-36,74213F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…27,968$653K<0.01%new13F-HRTimelineGroup
Headlands Technologies LLC25,392$593K0.07%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND25,384$593K<0.01%013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…24,739$578K<0.01%+4,19813F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…22,545$567K<0.01%+2,35013F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC23,461$556K<0.01%+73013F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV23,637$552K<0.01%+5,83213F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA23,381$546K<0.01%-1,95913F-HRTimelineGroup
Police & Firemen's Retirement System of…23,371$546K<0.01%013F-HRTimeline
Cetera Investment Advisers22,759$532K<0.01%-35713F-HRTimeline
Quantinno Capital Management LP22,576$527K<0.01%+2,23713F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM22,478$525K<0.01%-33513F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC22,031$515K0.03%-11113F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.21,993$494K0.09%-18,30913F-HRTimeline
SIMPLEX TRADING, LLC20,825$486K0.02%-4,83513F-HRTimeline
CITIGROUP INCin group CITIGROUP INC20,332$475K<0.01%-3,40913F-HRTimelineGroup
Marex Group Ltdin group Marex Group Ltd20,060$469K<0.01%+5,00013F-HRTimelineGroup
PSP Research LLC20,000$467K0.33%-4,71613F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …19,564$467K<0.01%+2,00213F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…18,968$443K<0.01%013F-HRTimeline
AXQ CAPITAL, LP18,340$428K0.06%new13F-HRTimeline
KLP KAPITALFORVALTNING AS17,600$411K<0.01%013F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC17,500$409K0.02%+5,50013F-HRTimelineGroup
DNB Asset Management ASin group DNB Asset Management AS16,652$389K<0.01%-13,10813F-HRTimelineGroup
ProShare Advisors LLC16,422$384K<0.01%-2,96613F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC16,056$375K<0.01%+1,51813F-HRTimelineGroup
E Fund Management Co., Ltd.15,678$366K0.01%13F-HRTimeline
China Universal Asset Management Co., L…15,652$366K0.03%+1,48913F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/15,242$356K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…14,432$337K0.01%+9,58813F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC13,841$323K<0.01%+2,71413F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…13,746$321K<0.01%013F-HRTimeline
DIVERSIFIED TRUST CO13,660$319K0.01%+2,55113F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC13,410$313K<0.01%new13F-HRTimelineGroup
TWO SIGMA SECURITIES, LLC13,009$304K0.04%new13F-HRTimeline
Post Resch Tallon Group Inc.12,500$302K0.24%-10,30013F-HRTimeline
Harbour Capital Advisors, LLC13,650$301K0.06%new13F-HRTimeline
Bleakley Financial Group, LLC12,488$292K<0.01%new13F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…12,356$289K<0.01%013F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd12,129$283K<0.01%-2,75713F-HRTimelineGroup
Merit Financial Group, LLC10,954$256K<0.01%new13F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC10,791$252K<0.01%new13F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS10,540$246K<0.01%-1,57713F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd10,300$241K0.01%-4,27413F-HRTimelineGroup
FARALLON CAPITAL MANAGEMENT, L.L.C.10,000$234K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Velan Capital Investment Management LP10,000$234K0.15%-120,00013F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC9,775$228K<0.01%new13F-HRTimeline
Pallas Capital Advisors LLC9,716$227K0.01%-1,26913F-HRTimeline
CAPTRUST FINANCIAL ADVISORS9,563$223K<0.01%new13F-HRTimeline
WEDBUSH SECURITIES INC9,054$212K0.01%new13F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co7,182$169K<0.01%013F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…7,119$166K0.01%013F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\4,573$107K<0.01%+5213F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…3,209$75K<0.01%+2,73713F-HRTimelineGroup
KBC Group NVin group KBC Group NV3,062$72K<0.01%-2,11813F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC2,892$67K<0.01%-7,27713F-HRTimelineGroup
Larson Financial Group LLC2,594$60.6K<0.01%+22413F-HRTimeline
Smartleaf Asset Management LLC2,579$58K<0.01%-8013F-HRTimeline
Quantbot Technologies LP2,350$54.9K<0.01%+1,16113F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.2,260$52.8K<0.01%-35213F-HRTimelineGroup
MAI Capital Management2,161$50.5K<0.01%+1,13213F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…2,086$48.7K<0.01%+713F-HRTimelineGroup