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Disclosery

RNA ATRIUM THERAPEUTICS INC

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Stock (common), issuer CIK 2093101

158 managers (163 13F filers) reported a position in RNA shares at 2026-03-31, 14,832,577 shares in all. 158 filers opened a position and 0 filers sold out during the quarter.

Managers
158
13F filers
163
New
158
Added
0
Reduced
0
Sold out
0
Shares held by filers
14,832,577

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
PRICE T ROWE ASSOCIATES INC /MD/1,553,210$20.8M<0.01%new13F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.1,205,291$16.1M<0.01%new13F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding1,071,951$14.3MnewTimeline
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.864,102$11.6M0.12%new13F-HRTimelineGroup
TIG Advisors, LLCin group TIG Advisors, LLC607,552$8.12M0.39%new13F-HRTimelineGroup
Pentwater Capital Management LP602,649$8.06M0.06%new13F-HRTimeline
O'Connor Alternative Investments LLC578,011$7.73M0.41%13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Sessa Capital IM, L.P.551,391$7.37M0.14%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC349,950$4.68M<0.01%new13F-HRTimelineGroup
FARALLON CAPITAL MANAGEMENT, L.L.C.349,360$4.67M0.03%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC319,831$4.28M<0.01%new13F-HRTimelineGroup
683 Capital Management, LLCin group 683 Capital Management, LLC300,000$4.01M0.37%new13F-HRTimelineGroup
Bellevue Group AGin group Bellevue Group AG263,096$3.52M0.08%new13F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP257,086$3.44M<0.01%new13F-HRTimelineGroup
Weiss Asset Management LPin group Weiss Asset Management LP240,701$3.22M0.06%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
CANTOR FITZGERALD, L. P.in group CANTOR FITZGERALD, L. P.235,637$3.15M0.11%new13F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management235,115$3.14M0.01%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC231,466$3.09M0.01%new13F-HRTimelineGroup
Arbiter Partners Capital Management LLCin group Arbiter Partners Capital Mana…230,000$3.08M2.09%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC190,859$2.55M<0.01%new13F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…183,580$2.45M<0.01%new13F-HRTimelineGroup
Slotnik Capital, LLC180,945$2.42M0.72%new13F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC179,713$2.4M0.04%new13F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP178,560$2.39M<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY165,036$2.21M<0.01%new13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC162,759$2.18M0.02%new13F-HRTimeline
NEXPOINT ASSET MANAGEMENT, L.P.in group NEXPOINT ASSET MANAGEMENT, L.…150,025$2.01M0.14%new13F-HRTimelineGroup
Marble Bar Asset Management LLP147,000$1.97M1.93%new13F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson139,973$1.87M<0.01%new13F-HR/ATimelineGroup
Bracebridge Capital, LLC139,239$1.86M0.33%new13F-HRTimeline
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD137,380$1.84M0.02%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/136,248$1.82M<0.01%new13F-HRTimelineGroup
Yakira Capital Management, Inc.126,645$1.69M0.5%new13F-HRTimeline
Creek Drive Management Group LLC120,000$1.6M1.01%new13F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co116,598$1.56M<0.01%new13F-HRTimelineGroup
TD Asset Management Inc111,200$1.49M<0.01%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC109,936$1.47M<0.01%new13F-HRTimelineGroup
Athos Capital Ltd107,965$1.44M0.44%new13F-HRTimeline
Caption Management, LLC103,592$1.39M0.07%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP98,585$1.32M<0.01%new13F-HRTimelineGroup
FIL Ltdin group FIL Ltd78,500$1.05M<0.01%new13F-HRTimelineGroup
ExodusPoint Capital Management, LP77,442$1.04M0.01%new13F-HRTimeline
TUDOR INVESTMENT CORP ET AL71,359$954K0.01%new13F-HRTimeline
Polar Asset Management Partners Inc.70,000$936K0.02%new13F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC69,294$926K<0.01%new13F-HRTimelineGroup
Quarry LP66,651$891K0.18%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …62,379$834K<0.01%new13F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC57,688$771K0.05%new13F-HRTimelineGroup
Westchester Capital Management, LLCin group Westchester Capital Managemen…55,236$739K0.04%new13F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding50,426$674KnewTimeline
AWM Investment Company, Inc.50,000$668K0.07%new13F-HRTimeline
Twin Securities, Inc.49,913$667K0.33%new13F-HRTimeline
ODDO BHF ASSET MANAGEMENT SAS45,090$603K0.02%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
CAXTON ASSOCIATES LLP44,230$591K0.01%new13F-HRTimeline
ALETHEA CAPITAL MANAGEMENT, LLC43,758$585K0.31%new13F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp43,697$584K<0.01%new13F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD41,970$561K<0.01%new13F-HRTimeline
HIGHBRIDGE CAPITAL MANAGEMENT LLC40,986$555K0.04%new13F-HRTimeline
Saba Capital Management, L.P.in group Saba Capital Management, L.P.39,640$530K0.02%new13F-HRTimelineGroup
FIFTH LANE CAPITAL, LP35,999$481K0.58%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA35,698$477K<0.01%new13F-HRTimelineGroup
KENNEDY CAPITAL MANAGEMENT LLC33,977$454K0.01%new13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP33,691$450K<0.01%new13F-HRTimelineGroup
LMR Partners LLPin group LMR Partners LLP32,500$435K<0.01%new13F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…31,644$423K<0.01%new13F-HRTimelineGroup
Groupe la Francaisein group Groupe la Francaise29,698$397K0.01%new13F-HRTimelineGroup
FMR LLCin group FMR LLC29,292$392K<0.01%new13F-HRTimelineGroup
Woodline Partners LP28,845$386K<0.01%new13F-HR/ATimeline
Nuveen, LLCin group TIAA25,307$338K<0.01%new13F-HRTimelineGroup
Cannon Global Investment Management, LLC25,087$335K0.81%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding24,453$327KnewTimeline
CREDIT INDUSTRIEL ET COMMERCIAL23,000$308K0.05%new13F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.22,708$304K<0.01%new13F-HRTimelineGroup
Fortress Investment Group LLCin group Fortress Investment Group LLC22,033$295K0.08%new13F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…20,590$275K<0.01%new13F-HRTimeline
Fractal Investments LLC20,000$267K0.03%new13F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC19,955$267K<0.01%new13F-HRTimelineGroup
Vestcor Inc17,499$234K0.01%new13F-HRTimeline
Grantham, Mayo, Van Otterloo & Co. LLC15,444$206K<0.01%new13F-HRTimeline
RHUMBLINE ADVISERS14,953$200K<0.01%new13F-HRTimeline
AlphaCentric Advisors LLC13,286$178K0.18%new13F-HRTimeline
ALLIANCEBERNSTEIN L.P.12,970$173K<0.01%new13F-HRTimeline
Public Sector Pension Investment Board12,882$172K<0.01%new13F-HRTimeline
Quantinno Capital Management LP12,454$167K<0.01%new13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO12,038$163K<0.01%new13F-HR/ATimelineGroup
AlphaGrep UK Ltd11,870$159K0.05%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN11,416$153K<0.01%new13F-HR/ATimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC10,512$141K<0.01%new13F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.10,193$136K<0.01%new13F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\10,019$134K<0.01%new13F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…9,488$127K<0.01%new13F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…8,845$118K<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS8,267$111K<0.01%new13F-HRTimelineGroup
Centiva Capital, LP5,895$78.8K<0.01%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc5,657$75.6K<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…3,839$51.3K<0.01%new13F-HRTimelineGroup
GROUP ONE TRADING LLC3,682$49.2K<0.01%new13F-HRTimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH3,600$48.8K<0.01%new13F-HRTimelineGroup
Walleye Trading LLCin group Walleye Capital LLC3,628$48.5K<0.01%new13F-HRTimelineGroup
Police & Firemen's Retirement System of…3,175$42.5K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,760$36.9K<0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND2,749$36.8K<0.01%new13F-HRTimeline
STRS OHIO2,600$34.8K<0.01%new13F-HRTimeline
DIADEMA PARTNERS LP2,512$33.6K0.01%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC2,095$28K<0.01%new13F-HRTimelineGroup
MAI Capital Management1,293$17.3K<0.01%new13F-HRTimeline
NATIXISin group Natixis Investment Managers1,292$17.3K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…950$12.7K<0.01%new13F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…943$12.6K<0.01%new13F-HRTimelineGroup
Federation des caisses Desjardins du Qu…810$10.8K<0.01%new13F-HRTimeline
Mint Tower Capital Management B.V.781$10K<0.01%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…780$10K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC638$8.53K<0.01%new13F-HRTimelineGroup
Steward Partners Investment Advisory, L…635$8.49K<0.01%new13F-HRTimeline
PenderFund Capital Management Ltd.490$6.55K<0.01%new13F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP472$6K<0.01%new13F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC384$5.13K<0.01%new13F-HRTimeline
KBC Group NVin group KBC Group NV337$5K<0.01%new13F-HRTimelineGroup
Basecamp Wealth Advisors LLC349$4.67K<0.01%new13F-HRTimeline
GAMMA Investing LLC335$4.48K<0.01%new13F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…331$4.42K<0.01%new13F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC316$4.22K<0.01%new13F-HR/ATimeline
US BANCORP \DE\in group US BANCORP \DE\297$3.97K<0.01%new13F-HRTimelineGroup
Eurizon Capital SGR S.p.A.287$3.91K<0.01%new13F-HRTimeline
Persistent Asset Partners Ltd283$3.78K<0.01%new13F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…142$1.9K<0.01%new13F-HRTimelineGroup
AdvisorNet Financial, Inc139$1.86K<0.01%new13F-HRTimeline
NewEdge Advisors, LLC123$1.65K<0.01%new13F-HR/ATimeline
Westside Investment Management, Inc.120$1.61K<0.01%new13F-HRTimeline
LONGFELLOW INVESTMENT MANAGEMENT CO LLC107$1.43K<0.01%new13F-HRTimeline
Sterling Capital Management LLC100$1.34K<0.01%new13F-HRTimeline
Parallel Advisors, LLC76$1.02K<0.01%new13F-HR/ATimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…59$794<0.01%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.58$775<0.01%new13F-HRTimelineGroup
Allworth Financial LP54$722<0.01%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…49$655<0.01%new13F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC34$455<0.01%new13F-HRTimelineGroup
Pinnacle Wealth Planning Services, Inc.34$455<0.01%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP29$384<0.01%new13F-HRTimelineGroup
Smartleaf Asset Management LLC25$339<0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC21$281<0.01%new13F-HRTimelineGroup
DANSKE BANK A/S21$280<0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC19$254<0.01%new13F-HRTimeline
Advisory Services Network, LLC12$160<0.01%new13F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…4$53<0.01%new13F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…4$53<0.01%new13F-HR/ATimelineGroup
Torren Management, LLC4$53<0.01%new13F-HRTimeline
Keating Financial Advisory Services, In…3$40<0.01%new13F-HRTimeline
MassMutual Private Wealth & Trust, FSB2$27<0.01%new13F-HRTimeline
Bell Investment Advisors, Inc2$27<0.01%new13F-HRTimeline
True Wealth Design, LLC1$14<0.01%new13F-HRTimeline
Truvestments Capital LLC1$13<0.01%new13F-HRTimeline
Root Financial Partners, LLC1$13<0.01%new13F-HRTimeline
Bare Financial Services, Inc1$13<0.01%new13F-HRTimeline
Cornerstone Financial Management LLC1$13<0.01%new13F-HR/ATimeline
Covestor Ltd13$00%new13F-HRTimelineValue filed as zero, left out of ratios.
BESSEMER GROUP INCin group BESSEMER GROUP INC9$00%new13F-HRTimelineGroupValue filed as zero, left out of ratios.
Centerpoint Advisors, LLC5$00%new13F-HRTimelineValue filed as zero, left out of ratios.