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Disclosery

RNA ATRIUM THERAPEUTICS INC

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Stock (common), issuer CIK 2093101

151 managers (155 13F filers) reported a position in RNA shares at 2026-06-30, 14,332,123 shares in all. 37 filers opened a position and 46 filers sold out during the quarter.

Managers
151
13F filers
155
New
37
Added
47
Reduced
35
Sold out
46
Shares held by filers
14,332,123

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
Sessa Capital IM, L.P.1,500,000$20.2M0.35%+948,60913F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/1,472,984$19.8M<0.01%-80,22613F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.1,447,476$19.5M<0.01%+242,18513F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding947,572$12.7M-124,379Timeline
CRCM LP641,539$8.63M5.67%new13F-HR/ATimeline
TIG Advisors, LLCin group TIG Advisors, LLC561,533$7.55M0.35%-46,01913F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC386,929$5.21M<0.01%+67,09813F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP345,481$4.65M<0.01%+166,92113F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC310,341$4.17M<0.01%-39,60913F-HRTimelineGroup
683 Capital Management, LLCin group 683 Capital Management, LLC300,000$4.04M0.37%013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP271,762$3.66M<0.01%+14,67613F-HRTimelineGroup
Arbiter Partners Capital Management LLCin group Arbiter Partners Capital Mana…261,288$3.51M1.95%+31,28813F-HR/ATimelineGroup
CANTOR FITZGERALD, L. P.in group CANTOR FITZGERALD, L. P.256,917$3.46M0.07%+21,28013F-HR/ATimelineGroup
Slotnik Capital, LLC237,637$3.2M0.89%+56,69213F-HRTimeline
Weiss Asset Management LPin group Weiss Asset Management LP219,730$2.96M0.03%-20,97113F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC200,559$2.7M<0.01%+9,70013F-HRTimelineGroup
Schonfeld Strategic Advisors LLC199,158$2.68M0.01%+36,39913F-HRTimeline
AQR CAPITAL MANAGEMENT LLCgroup of 2 filers holding172,235$2.32M-7,478Timeline
NEXPOINT ASSET MANAGEMENT, L.P.in group NEXPOINT ASSET MANAGEMENT, L.…150,025$2.02M0.13%013F-HRTimelineGroup
Polar Asset Management Partners Inc.150,000$2.02M0.04%+80,00013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC146,743$1.97M<0.01%-84,72313F-HRTimelineGroup
Bracebridge Capital, LLC139,239$1.87M0.41%013F-HRTimeline
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD137,394$1.85M0.01%+1413F-HRTimelineGroup
Yakira Capital Management, Inc.133,047$1.79M0.53%+6,40213F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/132,833$1.79M<0.01%-3,41513F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co130,217$1.75M<0.01%+13,61913F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL129,591$1.74M0.01%+58,23213F-HRTimeline
DAFNA Capital Management LLC128,000$1.72M0.33%new13F-HRTimeline
Creek Drive Management Group LLC127,600$1.72M1.06%+7,60013F-HRTimeline
NORGES BANK126,575$1.7M<0.01%new13F-HRTimeline
Anson Funds Management LPin group Anson Funds Management LP125,000$1.68M0.15%new13F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP119,781$1.61M<0.01%+21,19613F-HRTimelineGroup
ExodusPoint Capital Management, LP117,275$1.58M0.01%+39,83313F-HRTimeline
Trium Capital LLP113,278$1.52M0.96%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
TD Asset Management Inc111,200$1.5M<0.01%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC109,810$1.48M<0.01%+89,85513F-HRTimelineGroup
Athos Capital Ltd107,965$1.45M0.52%013F-HRTimeline
AWM Investment Company, Inc.107,500$1.45M0.13%+57,50013F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management105,875$1.42M<0.01%-129,24013F-HRTimelineGroup
Marble Bar Asset Management LLP103,849$1.4M0.97%-43,15113F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…100,000$1.34M<0.01%-83,58013F-HRTimelineGroup
BlueCrest Capital Management Ltd100,000$1.34M0.06%new13F-HRTimeline
CREDIT INDUSTRIEL ET COMMERCIAL89,723$1.21M0.13%+66,72313F-HRTimeline
Groupe la Francaisein group Groupe la Francaise80,273$1.08M0.01%+50,57513F-HRTimelineGroup
FIL Ltdin group FIL Ltd76,500$1.03M<0.01%-2,00013F-HRTimelineGroup
Caption Management, LLC75,277$1.01M0.04%-28,31513F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC67,639$910K<0.01%-42,29713F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …62,853$845K<0.01%+47413F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC57,688$776K0.04%013F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources56,699$763K<0.01%new13F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC53,992$726K<0.01%new13F-HRTimeline
ODDO BHF ASSET MANAGEMENT SAS45,090$606K0.03%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
CAXTON ASSOCIATES LLP44,230$595K0.01%013F-HRTimeline
ALETHEA CAPITAL MANAGEMENT, LLC43,758$589K0.24%013F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD41,970$564K<0.01%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY41,942$564K<0.01%-123,09413F-HRTimelineGroup
Saba Capital Management, L.P.in group Saba Capital Management, L.P.39,640$533K0.02%013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp39,252$528K<0.01%-4,44513F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd35,103$472K0.01%new13F-HRTimeline
KENNEDY CAPITAL MANAGEMENT LLC34,979$470K0.01%+1,00213F-HRTimeline
FMR LLCin group FMR LLC33,532$451K<0.01%+4,24013F-HRTimelineGroup
Moran Wealth Management, LLC33,320$448K0.01%new13F-HRTimeline
BOUSSARD & GAVAUDAN GESTION SAS32,845$447K0.02%13F-HRTimeline
LMR Partners LLPin group LMR Partners LLP32,500$437K<0.01%013F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC31,477$423K<0.01%new13F-HRTimeline
Nuveen, LLCin group TIAA31,071$418K<0.01%+5,76413F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC31,017$417K<0.01%new13F-HRTimelineGroup
Quantinno Capital Management LP27,418$369K<0.01%+14,96413F-HRTimeline
Twin Securities, Inc.26,517$357K0.18%-23,39613F-HRTimeline
Odyssean, LLC21,233$286K0.05%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…20,834$280K<0.01%-10,81013F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding20,184$271K-30,242Timeline
Fractal Investments LLC20,000$269K0.03%013F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…18,590$250K<0.01%-2,00013F-HRTimeline
Vestcor Inc17,499$235K0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN17,451$235K<0.01%+6,03513F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.17,110$229K<0.01%+4,14013F-HRTimeline
RHUMBLINE ADVISERS16,579$223K<0.01%+1,62613F-HRTimeline
BLUEFIN CAPITAL MANAGEMENT, LLC16,011$215K0.06%new13F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC14,971$201K<0.01%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\14,967$201K<0.01%+4,94813F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.14,174$191K<0.01%+3,98113F-HRTimelineGroup
Jupiter Topco LLCin group Janus Henderson13,833$186K<0.01%13F-HRTimelineGroup
AlphaCentric Advisors LLC13,478$181K0.15%+19213F-HRTimeline
AXQ CAPITAL, LP11,377$153K0.02%new13F-HRTimeline
KESTRA PRIVATE WEALTH SERVICES, LLCin group Kestra Advisory Services, LLC10,370$139K<0.01%new13F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…10,283$138K<0.01%+1,43813F-HRTimelineGroup
Corsicana & Co.9,820$132K0.06%new13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO9,388$128K<0.01%-2,65013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS7,901$106K<0.01%-36613F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC6,685$89.9K<0.01%+6,04713F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…6,602$88.8K<0.01%-2,88613F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…4,475$60.2K<0.01%+63613F-HRTimelineGroup
Skandinaviska Enskilda Banken AB (publ)4,400$59.2K<0.01%new13F-HRTimeline
Walleye Trading LLCin group Walleye Capital LLC3,978$53.5K<0.01%+35013F-HRTimelineGroup
Erste Asset Management GmbHin group Erste Asset Management GmbH3,600$49.1K<0.01%013F-HRTimelineGroup
Quantbot Technologies LP3,614$48.6K<0.01%new13F-HRTimeline
GROUP ONE TRADING LLC3,575$48.1K<0.01%-10713F-HRTimeline
Police & Firemen's Retirement System of…3,175$42.7K<0.01%013F-HRTimeline
Arax Advisory Partners3,128$42.1K<0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND2,749$37K<0.01%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC2,699$35.8K<0.01%+60413F-HRTimelineGroup
STRS OHIO2,600$35K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,716$23.1K<0.01%-1,04413F-HRTimelineGroup
Integrated Wealth Concepts LLC1,596$21.5K<0.01%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc1,422$19.1K<0.01%-4,23513F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…950$12.8K<0.01%013F-HRTimelineGroup
Steward Partners Investment Advisory, L…635$8.54K<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA600$8K<0.01%-35,09813F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…594$7.99K<0.01%-34913F-HRTimelineGroup
Keating Financial Advisory Services, In…531$7.14K<0.01%+52813F-HRTimeline
PenderFund Capital Management Ltd.490$6.59K<0.01%013F-HRTimeline
Covestor Ltd466$6K<0.01%+45313F-HRTimeline
Eurizon Capital SGR S.p.A.287$3.92K<0.01%013F-HRTimeline
Essential Partners LLC288$3.87K<0.01%new13F-HRTimeline
Allworth Financial LP281$3.78K<0.01%+22713F-HRTimeline
Versant Capital Management, Inc265$3.56K<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…230$3.09K<0.01%+22613F-HRTimelineGroup
FNY Investment Advisers, LLC260$3K<0.01%new13F-HRTimeline
True Wealth Design, LLC213$2.87K<0.01%+21213F-HRTimeline
GAMMA Investing LLC195$2.62K<0.01%-14013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…171$2.3K<0.01%new13F-HR/ATimeline
ROTHSCHILD INVESTMENT LLC162$2.18K<0.01%+14313F-HRTimeline
AdvisorNet Financial, Inc139$1.87K<0.01%013F-HRTimeline
Sterling Capital Management LLC125$1.68K<0.01%+2513F-HRTimeline
Farther Finance Advisors, LLC120$1.62K<0.01%new13F-HRTimeline
LONGFELLOW INVESTMENT MANAGEMENT CO LLC107$1.44K<0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC77$1.03K<0.01%-30713F-HRTimeline
Private Wealth Management Group, LLC75$1.01K<0.01%new13F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC74$995<0.01%new13F-HRTimeline
Basecamp Wealth Advisors LLC56$753<0.01%-29313F-HRTimeline
Fortitude Family Office, LLC50$673<0.01%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…49$659<0.01%013F-HRTimeline
Wealth Enhancement Trust Services, Inc.40$538<0.01%new13F-HR/ATimeline
Bogart Wealth, LLC39$525<0.01%new13F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…39$525<0.01%-10313F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP29$383<0.01%013F-HRTimelineGroup
Smartleaf Asset Management LLC25$341<0.01%013F-HRTimeline
DANSKE BANK A/S21$282<0.01%013F-HRTimeline
Global Retirement Partners, LLC21$282<0.01%13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\13$175<0.01%-28413F-HRTimelineGroup
Clearstead Advisors, LLC11$149<0.01%new13F-HRTimeline
Pinnacle Wealth Planning Services, Inc.10$135<0.01%-2413F-HRTimeline
SJS Investment Consulting Inc.9$122<0.01%new13F-HRTimeline
JPL Wealth Management, LLC6$81<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.5$67<0.01%-5313F-HRTimelineGroup
Torren Management, LLC4$54<0.01%013F-HRTimeline
Parallel Advisors, LLC2$27<0.01%-7413F-HRTimeline
Truvestments Capital LLC1$13<0.01%013F-HRTimeline
Avion Wealth43$00%new13F-HRTimelineValue filed as zero, left out of ratios.
Centerpoint Advisors, LLC5$00%013F-HRTimelineValue filed as zero, left out of ratios.