Atrium Therapeutics, Inc. - RNA

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q3 2026 · Compare: Q2 2026
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
Sessa Capital IM, L.P. History No change 1,500,000 20,175 0.34% 0.34% 1 0 0.0% Q2 2026 Aug 14, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History No change 1,472,984 19,813 0.0% 0.0% 2 0 0.0% Q2 2026 Aug 14, 2026
BlackRock, Inc. History No change 1,447,476 19,468 0.0% 0.0% 3 0 0.0% Q2 2026 Aug 07, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History No change 840,600 11,306 0.0% 0.0% 4 0 0.0% Q2 2026 Aug 14, 2026
VANGUARD CAPITAL MANAGEMENT LLC History No change 730,831 9,829 0.0% 0.0% 5 0 0.0% Q2 2026 Aug 13, 2026
CRCM LP History No change 641,539 8,628 5.68% 5.68% 6 0 0.0% Q2 2026 Aug 18, 2026
TIG Advisors, LLC History No change 561,533 7,552 0.33% 0.33% 7 0 0.0% Q2 2026 Aug 14, 2026
GEODE CAPITAL MANAGEMENT, LLC History No change 386,929 5,205 0.0% 0.0% 8 0 0.0% Q2 2026 Aug 12, 2026
TWO SIGMA INVESTMENTS, LP History No change 345,481 4,646 0.0% 0.0% 9 0 0.0% Q2 2026 Aug 14, 2026
GOLDMAN SACHS GROUP INC History No change 310,341 4,174 0.0% 0.0% 10 0 0.0% Q2 2026 Aug 14, 2026
683 Capital Management, LLC History No change 300,000 4,035 0.2% 0.2% 11 0 0.0% Q2 2026 Aug 14, 2026
STATE STREET CORP History No change 271,762 3,655 0.0% 0.0% 12 0 0.0% Q2 2026 Sep 22, 2026
Arbiter Partners Capital Management LLC History No change 261,288 3,514 1.85% 1.85% 13 0 0.0% Q2 2026 Aug 10, 2026
CANTOR FITZGERALD, L. P. History No change 256,917 3,455 0.04% 0.04% 14 0 0.0% Q2 2026 Aug 14, 2026
Slotnik Capital, LLC History No change 237,637 3,196 0.83% 0.83% 15 0 0.0% Q2 2026 Aug 13, 2026
Weiss Asset Management LP History No change 219,730 2,955 0.03% 0.03% 16 0 0.0% Q2 2026 Aug 14, 2026
MILLENNIUM MANAGEMENT LLC History No change 200,559 2,697 0.0% 0.0% 17 0 0.0% Q2 2026 Aug 14, 2026
Schonfeld Strategic Advisors LLC History No change 199,158 2,678 0.01% 0.01% 18 0 0.0% Q2 2026 Aug 14, 2026
AQR CAPITAL MANAGEMENT LLC History No change 172,235 2,316 0.0% 0.0% 19 0 0.0% Q2 2026 Aug 14, 2026
Polar Asset Management Partners Inc. History No change 150,000 2,017 0.03% 0.03% 20 0 0.0% Q2 2026 Aug 14, 2026
NEXPOINT ASSET MANAGEMENT, L.P. History No change 150,025 2,017 0.13% 0.13% 21 0 0.0% Q2 2026 Aug 14, 2026
Squarepoint Ops LLC History No change 146,743 1,973 0.0% 0.0% 22 0 0.0% Q2 2026 Aug 14, 2026
Bracebridge Capital, LLC History No change 139,239 1,872 0.03% 0.03% 23 0 0.0% Q2 2026 Aug 14, 2026
NOMURA HOLDINGS INC History No change 137,394 1,847 0.0% 0.0% 24 0 0.0% Q2 2026 Aug 14, 2026
Caption Management, LLC History No change 136,077 1,830 0.01% 0.01% 25 0 0.0% Q2 2026 Aug 14, 2026
Yakira Capital Management, Inc. History No change 133,047 1,789 0.51% 0.51% 26 0 0.0% Q2 2026 Aug 13, 2026
BANK OF AMERICA CORP /DE/ History No change 132,833 1,786 0.0% 0.0% 27 0 0.0% Q2 2026 Aug 14, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History No change 130,217 1,751 0.0% 0.0% 28 0 0.0% Q2 2026 Aug 14, 2026
TUDOR INVESTMENT CORP ET AL History No change 129,591 1,742 0.0% 0.0% 29 0 0.0% Q2 2026 Aug 14, 2026
DAFNA Capital Management LLC History No change 128,000 1,721 0.33% 0.33% 30 0 0.0% Q2 2026 Aug 14, 2026
Creek Drive Management Group LLC History No change 127,600 1,716 0.83% 0.83% 31 0 0.0% Q2 2026 Aug 13, 2026
NORGES BANK History No change 126,575 1,702 0.0% 0.0% 32 0 0.0% Q2 2026 Aug 12, 2026
Anson Funds Management LP History No change 125,000 1,681 0.1% 0.1% 33 0 0.0% Q2 2026 Aug 13, 2026
NORTHERN TRUST CORP History No change 119,781 1,611 0.0% 0.0% 34 0 0.0% Q2 2026 Aug 13, 2026
ExodusPoint Capital Management, LP History No change 117,275 1,577 0.01% 0.01% 35 0 0.0% Q2 2026 Aug 14, 2026
Trium Capital LLP History No change 113,278 1,523 0.94% 0.94% 36 0 0.0% Q2 2026 Jul 16, 2026
TD ASSET MANAGEMENT INC History No change 111,200 1,495 0.0% 0.0% 37 0 0.0% Q2 2026 Aug 04, 2026
VANGUARD FIDUCIARY TRUST CO History No change 109,961 1,478 0.0% 0.0% 38 0 0.0% Q2 2026 Aug 13, 2026
JANE STREET GROUP, LLC History No change 109,810 1,476 0.0% 0.0% 39 0 0.0% Q2 2026 Aug 14, 2026
Athos Capital Ltd History No change 107,965 1,452 0.52% 0.52% 40 0 0.0% Q2 2026 Aug 12, 2026
AWM Investment Company, Inc. History No change 107,500 1,445 0.13% 0.13% 41 0 0.0% Q2 2026 Aug 14, 2026
BALYASNY ASSET MANAGEMENT L.P. History No change 105,875 1,424 0.0% 0.0% 42 0 0.0% Q2 2026 Aug 14, 2026
Marble Bar Asset Management LLP History No change 103,849 1,396 0.97% 0.97% 43 0 0.0% Q2 2026 Aug 14, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History No change 101,195 1,361 0.0% 0.0% 44 0 0.0% Q2 2026 Aug 13, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C. History No change 100,000 1,345 0.0% 0.0% 45 0 0.0% Q2 2026 Aug 14, 2026
BlueCrest Capital Management Ltd History No change 100,000 1,345 0.04% 0.04% 46 0 0.0% Q2 2026 Aug 14, 2026
CREDIT INDUSTRIEL ET COMMERCIAL History No change 89,723 1,206 0.08% 0.08% 47 0 0.0% Q2 2026 Jul 24, 2026
Groupe la Francaise History No change 80,273 1,079 0.01% 0.01% 48 0 0.0% Q2 2026 Aug 25, 2026
FIL Ltd History No change 76,500 1,028 0.0% 0.0% 49 0 0.0% Q2 2026 Aug 13, 2026
CITADEL ADVISORS LLC History No change 67,639 909 0.0% 0.0% 50 0 0.0% Q2 2026 Sep 02, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History No change 62,853 845 0.0% 0.0% 51 0 0.0% Q2 2026 Sep 09, 2026
ADAR1 Capital Management, LLC History No change 57,688 775 0.04% 0.04% 52 0 0.0% Q2 2026 Aug 14, 2026
FRANKLIN RESOURCES INC History No change 56,699 762 0.0% 0.0% 53 0 0.0% Q2 2026 Aug 13, 2026
JACOBS LEVY EQUITY MANAGEMENT, INC History No change 53,992 726 0.0% 0.0% 54 0 0.0% Q2 2026 Aug 14, 2026
ODDO BHF ASSET MANAGEMENT SAS History No change 45,090 606 0.03% 0.03% 55 0 0.0% Q2 2026 Aug 13, 2026
CAXTON ASSOCIATES LLP History No change 44,230 594 0.01% 0.01% 56 0 0.0% Q2 2026 Aug 14, 2026
ALETHEA CAPITAL MANAGEMENT, LLC History No change 43,758 588 0.24% 0.24% 57 0 0.0% Q2 2026 Aug 14, 2026
MORGAN STANLEY History No change 41,942 564 0.0% 0.0% 58 0 0.0% Q2 2026 Aug 13, 2026
CANADA PENSION PLAN INVESTMENT BOARD History No change 41,970 564 0.0% 0.0% 59 0 0.0% Q2 2026 Aug 14, 2026
Saba Capital Management, L.P. History No change 39,640 533 0.01% 0.01% 60 0 0.0% Q2 2026 Aug 14, 2026
Bank of New York Mellon Corp History No change 39,252 527 0.0% 0.0% 61 0 0.0% Q2 2026 Aug 06, 2026
Y-Intercept (Hong Kong) Ltd History No change 35,103 472 0.01% 0.01% 62 0 0.0% Q2 2026 Jul 13, 2026
KENNEDY CAPITAL MANAGEMENT LLC History No change 34,979 470 0.01% 0.01% 63 0 0.0% Q2 2026 Aug 14, 2026
FMR LLC History No change 33,532 451 0.0% 0.0% 64 0 0.0% Q2 2026 Aug 13, 2026
Moran Wealth Management, LLC History No change 33,320 448 0.01% 0.01% 65 0 0.0% Q2 2026 Aug 05, 2026
BOUSSARD & GAVAUDAN GESTION SAS History No change 32,845 447 0.02% 0.02% 66 0 0.0% Q2 2026 Aug 19, 2026
LMR Partners LLP History No change 32,500 437 0.0% 0.0% 67 0 0.0% Q2 2026 Aug 14, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History No change 31,477 423 0.0% 0.0% 68 0 0.0% Q2 2026 Aug 13, 2026
Jump Financial, LLC History No change 31,017 417 0.0% 0.0% 69 0 0.0% Q2 2026 Aug 13, 2026
Nuveen, LLC History No change 31,071 417 0.0% 0.0% 70 0 0.0% Q2 2026 Aug 11, 2026
Walleye Trading LLC History No change 29,878 401 0.0% 0.0% 71 0 0.0% Q2 2026 Aug 03, 2026
Quantinno Capital Management LP History No change 27,418 368 0.0% 0.0% 72 0 0.0% Q2 2026 Aug 13, 2026
Twin Securities, Inc. History No change 26,517 356 0.16% 0.16% 73 0 0.0% Q2 2026 Aug 14, 2026
Odyssean, LLC History No change 21,233 285 0.05% 0.05% 74 0 0.0% Q2 2026 Aug 14, 2026
Brevan Howard Capital Management LP History No change 20,834 280 0.0% 0.0% 75 0 0.0% Q2 2026 Aug 14, 2026
Fractal Investments LLC History No change 20,000 269 0.03% 0.03% 76 0 0.0% Q2 2026 Jul 23, 2026
UBS Group AG History No change 19,572 263 0.0% 0.0% 77 0 0.0% Q2 2026 Aug 13, 2026
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND History No change 18,590 250 0.0% 0.0% 78 0 0.0% Q2 2026 Aug 13, 2026
Vestcor Inc History No change 17,499 235 0.01% 0.01% 79 0 0.0% Q2 2026 Aug 11, 2026
WELLS FARGO & COMPANY/MN History No change 17,451 234 0.0% 0.0% 80 0 0.0% Q2 2026 Aug 14, 2026
ALLIANCEBERNSTEIN L.P. History No change 17,110 228 0.0% 0.0% 81 0 0.0% Q2 2026 Aug 14, 2026
RHUMBLINE ADVISERS History No change 16,579 222 0.0% 0.0% 82 0 0.0% Q2 2026 Aug 11, 2026
BLUEFIN CAPITAL MANAGEMENT, LLC History No change 16,011 215 0.05% 0.05% 83 0 0.0% Q2 2026 Aug 14, 2026
DEUTSCHE BANK AG\ History No change 14,967 201 0.0% 0.0% 84 0 0.0% Q2 2026 Aug 07, 2026
RENAISSANCE TECHNOLOGIES LLC History No change 14,971 201 0.0% 0.0% 85 0 0.0% Q2 2026 Aug 13, 2026
Invesco Ltd. History No change 14,174 190 0.0% 0.0% 86 0 0.0% Q2 2026 Aug 14, 2026
Jupiter Topco LLC History No change 13,833 185 0.0% 0.0% 87 0 0.0% Q2 2026 Aug 14, 2026
AlphaCentric Advisors LLC History No change 13,478 181 0.15% 0.15% 88 0 0.0% Q2 2026 Jul 24, 2026
AXQ CAPITAL, LP History No change 11,377 153 0.02% 0.02% 89 0 0.0% Q2 2026 Aug 06, 2026
KESTRA PRIVATE WEALTH SERVICES, LLC History No change 10,370 139 0.0% 0.0% 90 0 0.0% Q2 2026 Jul 28, 2026
MetLife Investment Management, LLC History No change 10,283 138 0.0% 0.0% 91 0 0.0% Q2 2026 Aug 13, 2026
Corsicana & Co. History No change 9,820 132 0.06% 0.06% 92 0 0.0% Q2 2026 Jul 24, 2026
JPMORGAN CHASE & CO History No change 9,388 128 0.0% 0.0% 93 0 0.0% Q2 2026 Aug 12, 2026
BNP PARIBAS FINANCIAL MARKETS History No change 7,901 106 0.0% 0.0% 94 0 0.0% Q2 2026 Aug 13, 2026
CITIGROUP INC History No change 6,685 89 0.0% 0.0% 95 0 0.0% Q2 2026 Aug 03, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History No change 6,602 88 0.0% 0.0% 96 0 0.0% Q2 2026 Aug 14, 2026
Vanguard Global Advisers, LLC History No change 5,585 75 0.0% 0.0% 97 0 0.0% Q2 2026 Aug 13, 2026
Russell Investments Group, Ltd. History No change 4,475 60 0.0% 0.0% 98 0 0.0% Q2 2026 Aug 06, 2026
Skandinaviska Enskilda Banken AB (publ) History No change 4,400 59 0.0% 0.0% 99 0 0.0% Q2 2026 Aug 10, 2026
Erste Asset Management GmbH History No change 3,600 49 0.0% 0.0% 100 0 0.0% Q2 2026 Jul 28, 2026
GROUP ONE TRADING LLC History No change 3,575 48 0.0% 0.0% 101 0 0.0% Q2 2026 Aug 13, 2026
Quantbot Technologies LP History No change 3,614 48 0.0% 0.0% 102 0 0.0% Q2 2026 Aug 12, 2026
Arax Advisory Partners History No change 3,128 42 0.0% 0.0% 103 0 0.0% Q2 2026 Aug 10, 2026
Police & Firemen's Retirement System of New Jersey History No change 3,175 42 0.0% 0.0% 104 0 0.0% Q2 2026 Jul 23, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 2,749 36 0.0% 0.0% 105 0 0.0% Q2 2026 Jul 29, 2026
BARCLAYS PLC History No change 2,699 35 0.0% 0.0% 106 0 0.0% Q2 2026 Aug 14, 2026
STRS OHIO History No change 2,600 34 0.0% 0.0% 107 0 0.0% Q2 2026 Jul 30, 2026
Tower Research Capital LLC (TRC) History No change 1,716 23 0.0% 0.0% 108 0 0.0% Q2 2026 Aug 11, 2026
Legal & General Group Plc History No change 1,422 19 0.0% 0.0% 109 0 0.0% Q2 2026 Aug 14, 2026
Ameritas Investment Partners, Inc. History No change 950 12 0.0% 0.0% 110 0 0.0% Q2 2026 Aug 13, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History No change 612 8 0.0% 0.0% 111 0 0.0% Q2 2026 Aug 13, 2026
ROYAL BANK OF CANADA History No change 600 8 0.0% 0.0% 112 0 0.0% Q2 2026 Aug 14, 2026
Steward Partners Investment Advisory, LLC History No change 635 8 0.0% 0.0% 113 0 0.0% Q2 2026 Aug 13, 2026
Versant Capital Management, Inc History Added to 931 7 0.0% 0.0% 115 +666 251.32% Q3 2026 Oct 01, 2026
PNC FINANCIAL SERVICES GROUP, INC. History No change 594 7 0.0% 0.0% 114 0 0.0% Q2 2026 Aug 07, 2026
Keating Financial Advisory Services, Inc. History No change 531 7 0.0% 0.0% 116 0 0.0% Q2 2026 Aug 11, 2026
PenderFund Capital Management Ltd. History No change 490 6 0.0% 0.0% 117 0 0.0% Q2 2026 Aug 14, 2026
Covestor Ltd History No change 466 6 0.0% 0.0% 118 0 0.0% Q2 2026 Aug 07, 2026
GAMMA Investing LLC History Added to 369 3 0.0% 0.0% 122 +174 89.23% Q3 2026 Oct 08, 2026
Allworth Financial LP History No change 281 3 0.0% 0.0% 119 0 0.0% Q2 2026 Aug 11, 2026
EverSource Wealth Advisors, LLC History No change 230 3 0.0% 0.0% 120 0 0.0% Q2 2026 Jul 24, 2026
FNY Investment Advisers, LLC History No change 297 3 0.0% 0.0% 121 0 0.0% Q2 2026 Jul 08, 2026
Eurizon Capital SGR S.p.A. History No change 287 3 0.0% 0.0% 123 0 0.0% Q2 2026 Jul 29, 2026
Essential Partners LLC History No change 288 3 0.0% 0.0% 124 0 0.0% Q2 2026 Aug 10, 2026
ROTHSCHILD INVESTMENT LLC History No change 162 2 0.0% 0.0% 125 0 0.0% Q2 2026 Aug 06, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History No change 171 2 0.0% 0.0% 126 0 0.0% Q2 2026 Aug 24, 2026
True Wealth Design, LLC History No change 213 2 0.0% 0.0% 127 0 0.0% Q2 2026 Jul 16, 2026
NISA INVESTMENT ADVISORS, LLC History No change 77 1 0.0% 0.0% 128 0 0.0% Q2 2026 Aug 10, 2026
LONGFELLOW INVESTMENT MANAGEMENT CO LLC History No change 107 1 0.0% 0.0% 129 0 0.0% Q2 2026 Aug 06, 2026
Sterling Capital Management LLC History No change 125 1 0.0% 0.0% 130 0 0.0% Q2 2026 Jul 28, 2026
AdvisorNet Financial, Inc History No change 139 1 0.0% 0.0% 131 0 0.0% Q2 2026 Jul 23, 2026
Private Wealth Management Group, LLC History No change 75 1 0.0% 0.0% 132 0 0.0% Q2 2026 Jul 27, 2026
Farther Finance Advisors, LLC History Reduced 18 0 — 0.0% — -102 -85.0% Q3 2026 Oct 08, 2026
Wealth Enhancement Trust Services, Inc. History Closed out 0 0 — — — -40 -100.0% Q3 2026 Oct 07, 2026
US BANCORP \DE\ History No change 13 0 — — — 0 0.0% Q2 2026 Aug 12, 2026
DANSKE BANK A/S History No change 21 0 — — — 0 0.0% Q2 2026 Aug 10, 2026
JONES FINANCIAL COMPANIES LLLP History No change 29 0 — — — 0 0.0% Q2 2026 Aug 14, 2026
Clearstead Advisors, LLC History No change 11 0 — — — 0 0.0% Q2 2026 Aug 06, 2026
GLAZER CAPITAL, LLC History No change 201 0 — — — 0 0.0% Q2 2026 Aug 14, 2026
Zurcher Kantonalbank (Zurich Cantonalbank) History No change 49 0 — — — 0 0.0% Q2 2026 Aug 11, 2026
TD PRIVATE CLIENT WEALTH LLC History No change 74 0 — — — 0 0.0% Q2 2026 Aug 04, 2026
OSAIC HOLDINGS, INC. History No change 5 0 — — — 0 0.0% Q2 2026 Aug 14, 2026
Parallel Advisors, LLC History No change 2 0 — — — 0 0.0% Q2 2026 Aug 05, 2026
Bogart Wealth, LLC History No change 39 0 — — — 0 0.0% Q2 2026 Jul 24, 2026
Pinnacle Wealth Planning Services, Inc. History No change 10 0 — — — 0 0.0% Q2 2026 Aug 07, 2026
Centerpoint Advisors, LLC History No change 5 0 — — — 0 0.0% Q2 2026 Aug 05, 2026
Rockefeller Capital Management L.P. History No change 39 0 — — — 0 0.0% Q2 2026 Aug 13, 2026
Global Retirement Partners, LLC History No change 21 0 — — — 0 0.0% Q2 2026 Aug 06, 2026
Truvestments Capital LLC History No change 1 0 — — — 0 0.0% Q2 2026 Aug 12, 2026
Avion Wealth History No change 43 0 — — — 0 0.0% Q2 2026 Jul 31, 2026
SJS Investment Consulting Inc. History No change 9 0 — — — 0 0.0% Q2 2026 Jul 22, 2026
Fortitude Family Office, LLC History No change 50 0 — — — 0 0.0% Q2 2026 Jul 20, 2026
Smartleaf Asset Management LLC History No change 25 0 — — — 0 0.0% Q2 2026 Aug 12, 2026
JPL Wealth Management, LLC History No change 6 0 — — — 0 0.0% Q2 2026 Aug 13, 2026
Torren Management, LLC History No change 4 0 — — — 0 0.0% Q2 2026 Jul 10, 2026
Basecamp Wealth Advisors LLC History No change 56 0 — — — 0 0.0% Q2 2026 Aug 14, 2026