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Disclosery

DYN DYNE THERAPEUTICS INC

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Stock (common), issuer CIK 1818794

199 managers (201 13F filers) reported a position in DYN shares at 2024-12-31, 111,635,800 shares in all. 30 filers opened a position and 34 filers sold out during the quarter.

Managers
199
13F filers
201
New
30
Added
68
Reduced
63
Sold out
34
Shares held by filers
111,635,800

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

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Posner Brian Sdirector2026-10-02+2,500 P$16Form 4

13F holders, Q4 2024

Filers in the available 13F reports with a share position at 2024-12-31, 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
Atlas Venture Life Science Advisors, LLC8,019,354$189M23.05%-78213F-HRTimeline
FMR LLCin group FMR LLC7,996,931$188M0.01%-1,029,76613F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.7,949,402$187M<0.01%+155,28813F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson7,379,309$174M0.09%+566,14613F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC6,703,926$158M<0.01%-160,21113F-HRTimelineGroup
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.6,381,144$150M2%013F-HRTimelineGroup
FCPM III SERVICES B.V.in group FCPM III SERVICES B.V.5,462,846$129M21.73%-491,22313F-HRTimelineGroup
RTW INVESTMENTS, LP5,218,641$123M1.86%-1,600,00013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP3,717,383$87.6M<0.01%+75,52413F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC2,861,581$67.4M0.06%-77,75913F-HRTimelineGroup
TCG Crossover Management, LLC2,650,150$62.4M6.1%013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/2,402,452$56.6M0.01%-233,84113F-HRTimeline
Holocene Advisors, LP2,348,161$55.3M0.18%+365,52113F-HRTimeline
Venrock Adviser, LLC2,173,913$51.2M3.51%013F-HRTimeline
Deep Track Capital, LP2,000,000$47.1M1.77%-1,282,00013F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…1,950,000$45.9M0.08%-452,97213F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,887,329$44.5M<0.01%+27,91613F-HRTimelineGroup
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.1,800,000$42.4M0.47%new13F-HR/ATimelineGroup
Siren, L.L.C.in group Siren, L.L.C.1,347,456$31.7M1.4%+212,79213F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources1,323,803$31.2M0.01%-18,69713F-HRTimelineGroup
ORBIMED ADVISORS LLCin group ORBIMED ADVISORS LLC1,227,080$28.9M0.6%+518,68013F-HRTimelineGroup
JENNISON ASSOCIATES LLC1,211,915$28.6M0.02%-135,03713F-HRTimeline
Vivo Capital, LLC1,114,960$26.3M2.94%013F-HRTimeline
Sofinnova Investments, Inc.1,071,498$25.2M1.85%+299,42813F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.1,056,241$24.9M0.05%-160,92913F-HRTimelineGroup
ARMISTICE CAPITAL, LLC964,518$22.7M0.53%-190,68613F-HRTimeline
NORGES BANK950,104$22.4M<0.01%+517,77713F-HRTimeline
ArrowMark Colorado Holdings LLC932,231$22M0.3%+32,04113F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.924,681$21.8M0.06%+822,20113F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP777,013$18.3M<0.01%+55,51113F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY753,593$17.8M<0.01%-299,66913F-HR/ATimelineGroup
Man Group plcin group Man Group plc746,463$17.6M0.05%+27,81313F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding683,475$16.1M-76,578Timeline
MPM ASSET MANAGEMENT LLC682,376$16.1M12.92%013F-HRTimeline
BRAIDWELL LP681,182$16M0.48%new13F-HRTimeline
BAKER BROS. ADVISORS LPin group BAKER BROS. ADVISORS LP672,096$15.8M0.17%013F-HRTimelineGroup
Octagon Capital Advisors LP668,000$15.7M2.68%+405,27413F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co667,452$15.7M<0.01%+18,80013F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC628,703$14.8M<0.01%-41,78113F-HRTimelineGroup
Woodline Partners LP573,957$13.5M0.09%-403,48313F-HRTimeline
EcoR1 Capital, LLC555,644$13.1M0.52%013F-HRTimeline
PERCEPTIVE ADVISORS LLCin group PERCEPTIVE ADVISORS LLC543,277$12.8M0.36%-174,86713F-HRTimelineGroup
Rock Springs Capital Management LP474,528$11.2M0.43%+13,50013F-HRTimeline
Logos Global Management LP450,000$10.6M1.24%+290,00013F-HRTimeline
DEERFIELD MANAGEMENT COMPANY, L.P.in group DEERFIELD MANAGEMENT COMPANY,…435,653$10.3M0.2%013F-HRTimelineGroup
First Light Asset Management, LLC420,431$9.91M0.95%-836,85413F-HRTimeline
Vida Ventures Advisors, LLC407,499$9.6M6.56%013F-HRTimeline
Candriam S.C.A.401,395$9.46M0.05%+10,43913F-HRTimeline
EVENTIDE ASSET MANAGEMENT, LLC332,277$7.83M0.14%013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…323,552$7.62M0.01%+18,84713F-HRTimelineGroup
WASATCH ADVISORS LP320,626$7.55M0.04%-3,47313F-HRTimeline
Ensign Peak Advisors, Inc315,602$7.44M0.01%+2,85013F-HRTimeline
FRONTIER CAPITAL MANAGEMENT CO LLC298,052$7.02M0.07%new13F-HRTimeline
Qube Research & Technologies Ltd267,377$6.3M0.01%+244,21113F-HRTimeline
Nuveen Asset Management, LLCin group TIAA266,404$6.28M<0.01%-10,01013F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC249,803$5.89M0.01%-5,58213F-HR/ATimelineGroup
SPHERA FUNDS MANAGEMENT LTD.in group SPHERA FUNDS MANAGEMENT LTD.236,262$5.57M1.03%+179,75813F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp234,798$5.53M<0.01%+69813F-HRTimelineGroup
Ratan Capital Management LP230,900$5.44M0.83%013F-HRTimeline
FARALLON CAPITAL MANAGEMENT, L.L.C.229,121$5.4M0.03%-198,87913F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC219,635$5.17M<0.01%+6,73513F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC192,239$4.53M<0.01%-15,07013F-HR/ATimelineGroup
AXA S.A.in group AXA S.A.188,651$4.44M0.01%-30013F-HRTimelineGroup
Crestline Management, L.P.184,818$4.35M0.15%+67,13713F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management169,306$3.99M0.01%-75,80413F-HRTimelineGroup
Rafferty Asset Management, LLC167,482$3.95M0.01%+2,52013F-HRTimeline
ALLIANCEBERNSTEIN L.P.153,218$3.61M<0.01%-30,99313F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC152,306$3.59M<0.01%+15,24013F-HRTimelineGroup
Integral Health Asset Management, LLC150,000$3.53M0.31%new13F-HRTimeline
SCHRODER INVESTMENT MANAGEMENT GROUP147,002$3.48M<0.01%+56,96113F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC145,510$3.43M<0.01%-110,40013F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC142,917$3.37M<0.01%+78,47913F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.133,772$3.15M<0.01%+60,73213F-HRTimelineGroup
Springhill Fund Asset Management (HK) C…131,200$3.09M5.02%13F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC128,290$3.02M<0.01%+23,77313F-HRTimelineGroup
RHUMBLINE ADVISERS128,244$3.02M<0.01%+3,73413F-HR/ATimeline
Trexquant Investment LP125,378$2.95M0.03%+61,28813F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/122,641$2.89M<0.01%-169,07113F-HRTimelineGroup
Cubist Systematic Strategies, LLC119,065$2.81M0.05%new13F-HRTimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC119,015$2.8M0.01%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…116,729$2.75M<0.01%-6,73513F-HRTimelineGroup
Swiss National Bank108,600$2.56M<0.01%+3,50013F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP99,578$2.35M<0.01%-66,56913F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC99,328$2.34M<0.01%13F-HR/ATimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO98,387$2.32M<0.01%-3,36313F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …97,395$2.29M<0.01%-8,82013F-HRTimelineGroup
Avidity Partners Management LP96,000$2.26M0.23%-69,00013F-HRTimeline
ALGERT GLOBAL LLC80,923$1.91M0.04%-14,03713F-HR/ATimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…79,514$1.87M<0.01%+46,64513F-HRTimelineGroup
HighVista Strategies LLC78,420$1.85M0.69%+12,93813F-HRTimeline
TWO SIGMA ADVISERS, LPin group TWO SIGMA INVESTMENTS, LP76,100$1.79M<0.01%+15,40013F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD74,378$1.75M<0.01%+19,27513F-HRTimeline
SUPERSTRING CAPITAL MANAGEMENT LP73,150$1.72M1.51%new13F-HRTimeline
TD Asset Management Inc72,030$1.7M<0.01%-36,80013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\70,961$1.67M<0.01%+24,10413F-HR/ATimelineGroup
DekaBank Deutsche Girozentrale60,000$1.62M<0.01%013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc68,465$1.61M<0.01%-37,98213F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS66,998$1.58M<0.01%new13F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC61,348$1.45M<0.01%+30,81113F-HRTimeline
Lisanti Capital Growth, LLC57,755$1.36M0.33%+40,44513F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding56,971$1.34M+2,663Timeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…53,635$1.26M<0.01%+75313F-HR/ATimeline
Darwin Wealth Management, LLC52,090$1.23M0.41%new13F-HR/ATimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC51,616$1.22M<0.01%-31,61313F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC50,911$1.2M0.03%new13F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…49,467$1.17M0.01%+2,74813F-HRTimelineGroup
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…48,348$1.14M0.01%-4313F-HRTimelineGroup
ARCADIA INVESTMENT MANAGEMENT CORP/MI44,940$1.06M0.17%+6,32613F-HRTimeline
TUDOR INVESTMENT CORP ET AL43,264$1.02M0.01%-7,21913F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.40,996$966K0.01%-2,15113F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.40,323$950K<0.01%-2,09913F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN38,754$913K<0.01%+13,67713F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…38,550$908K<0.01%-3,11113F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC37,536$884K<0.01%+31,54513F-HRTimelineGroup
COMERICA BANK35,409$834K<0.01%+35,23413F-HR/ATimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…35,000$825K<0.01%new13F-HRTimelineGroup
OPPENHEIMER & CO INCin group OPPENHEIMER ASSET MANAGEMENT …34,715$818K0.01%-5,37613F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC33,976$800K0.01%+8,16213F-HRTimeline
PROFUND ADVISORS LLC32,594$768K0.03%-29813F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…28,781$678K0.02%new13F-HRTimelineGroup
ProShare Advisors LLC28,044$661K<0.01%+6,86213F-HRTimeline
Skandinaviska Enskilda Banken AB (publ)26,816$634K<0.01%new13F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC26,018$613K0.01%-5,83913F-HRTimelineGroup
Aberdeen Group plcin group Aberdeen Group plc25,803$608K<0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND24,973$588K<0.01%013F-HR/ATimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP24,501$577K<0.01%new13F-HRTimelineGroup
Verition Fund Management LLC22,702$535K<0.01%new13F-HRTimeline
Handelsbanken Fonder AB22,500$530K<0.01%+3,20013F-HRTimeline
China Universal Asset Management Co., L…21,575$508K0.05%+2,26513F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…20,605$485K<0.01%013F-HRTimeline
Privium Fund Management B.V.20,366$480K0.11%+5,35013F-HRTimeline
SG Americas Securities, LLC19,036$448K<0.01%+69213F-HRTimeline
Police & Firemen's Retirement System of…17,179$405K<0.01%13F-HRTimeline
SYON CAPITAL LLC16,930$399K0.04%new13F-HRTimeline
HRT FINANCIAL LP16,722$393K<0.01%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS16,385$386K<0.01%+2,88313F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM16,020$377K<0.01%+51813F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…16,018$377K0.01%+14,39613F-HRTimelineGroup
Allianz Asset Management GmbHin group Allianz SE15,800$372K<0.01%013F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…15,751$371K<0.01%+6,41813F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC13,354$316K<0.01%+4,17813F-HRTimelineGroup
Legato Capital Management LLC12,960$305K0.04%new13F-HRTimeline
OCONNOR, A Distinct Business Unit of UB…12,584$296K0.01%-6,73413F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
E Fund Management Co., Ltd.11,848$279K0.01%+1,24913F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC11,181$263K0.01%new13F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC11,157$263K<0.01%-1,66713F-HRTimelineGroup
KLP KAPITALFORVALTNING AS10,900$257K<0.01%13F-HRTimeline
Y-Intercept (Hong Kong) Ltd9,768$230K0.02%-19,92613F-HRTimeline
FORA Capital, LLC9,235$218K0.02%-8,94513F-HRTimeline
Neo Ivy Capital Management8,715$205K0.04%new13F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…8,627$203K0.01%+72113F-HRTimelineGroup
Compagnie Lombard Odier SCmA7,000$165K<0.01%013F-HRTimeline
Point72 (DIFC) Ltd6,420$151K0.01%+5,42813F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…5,740$135K<0.01%013F-HRTimeline
KBC Group NVin group KBC Group NV3,135$74K<0.01%+97813F-HRTimelineGroup
AMALGAMATED BANK2,792$66K<0.01%013F-HRTimeline
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…2,776$65.4K0.03%+4013F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.2,137$50.3K<0.01%13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA2,117$50K<0.01%-7,59013F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\1,609$37.9K<0.01%+24113F-HRTimelineGroup
STRS OHIO1,100$25.9K<0.01%-9,50013F-HRTimeline
Aspect Partners, LLC725$17.1K0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC710$16.7K<0.01%-5913F-HRTimeline
Caitong International Asset Management …646$15.2K0.01%13F-HR/ATimeline
GROUP ONE TRADING LLC613$14.4K<0.01%new13F-HR/ATimeline
Steward Partners Investment Advisory, L…610$14.4K<0.01%+23513F-HRTimeline
SIGNATUREFD, LLC598$14.1K<0.01%-9913F-HRTimeline
R Squared Ltd440$10.4K0.01%13F-HRTimeline
GPS Wealth Strategies Group, LLC400$9.42K<0.01%013F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.371$9K<0.01%013F-HRTimelineGroup
Spire Wealth Managementin group Spire Wealth Management300$7.07K<0.01%new13F-HRTimelineGroup
Truvestments Capital LLC295$6.95K<0.01%013F-HRTimeline
GAMMA Investing LLC280$6.6K<0.01%+4313F-HRTimeline
Venturi Wealth Management, LLC270$6.36K<0.01%new13F-HRTimeline
Arax Advisory Partners250$5.89K<0.01%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC231$5.44K<0.01%013F-HRTimeline
Lindbrook Capital, LLC219$5.16K<0.01%-10513F-HRTimeline
First Horizon Advisors, Inc.156$3.68K<0.01%-2313F-HRTimeline
Washington Trust Advisors, Inc.125$2.94K<0.01%013F-HRTimeline
Asset Dedication, LLC103$2.43K<0.01%013F-HRTimeline
Sterling Capital Management LLC83$1.96K<0.01%013F-HRTimeline
ROTHSCHILD INVESTMENT LLC60$1.41K<0.01%-3013F-HRTimeline
BELLEVUE ASSET MANAGEMENT, LLC47$1.11K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC23$1K<0.01%-70113F-HRTimelineGroup
Smartleaf Asset Management LLC31$733<0.01%-1413F-HRTimeline
Parallel Advisors, LLC27$636<0.01%-113F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…21$495<0.01%-11913F-HRTimelineGroup
Amundiin group Amundi21$484<0.01%new13F-HRTimelineGroup
Federation des caisses Desjardins du Qu…20$471<0.01%013F-HRTimeline
SBI Securities Co., Ltd.19$448<0.01%13F-HRTimeline
Aster Capital Management (DIFC) Ltd18$424<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.15$353<0.01%-8,64513F-HR/ATimelineGroup
J.Safra Asset Management Corp11$260<0.01%013F-HRTimeline
CoreCap Advisors, LLC7$165<0.01%new13F-HRTimeline
IFP Advisors, Inc3$71<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…3$71<0.01%new13F-HRTimelineGroup
Global Retirement Partners, LLC3$71<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC3$71<0.01%013F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$00%013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

Events

  • Posner Brian S bought 2,500 DYN shares on 2026-10-02, Form 4 filed 2026-10-06. 0001193125-26-415584

    Accepted , ingested