13FBOX
ATRIUM THERAPEUTICS INC · 13F Institutional Holdings
Options Calculator Rankings
A

ATRIUM THERAPEUTICS INC

RNA
Institutions
155
Combined AUM (Q2 2026)
$1.73B
Combined Shares (Q2 2026)
15.2M
Overall Trend
Decrease
All institutions combined
📥 Inflow (Q1 2026→Q2 2026)
+4.0M
85 · 39 New Buys · ≈
📤 Outflow (Q1 2026→Q2 2026)
-4.7M
81 · 44 Exit · ≈
⚖️ Net
-650,557
Net Sell
💰 Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$1.73B
Institutions
155
New Buys
39
Adds
46
Reduces
37
Exits
44
Unchanged
33
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
Trium Capital LLP
0.94%#4$1.52B113,278$00+113,278New Buy
Sessa Capital IM, L.P.
0.34%0.13%#11$20.2M1.5M$7.4M551,391+948,609+172.04%Add
PRICE T ROWE ASSOCIATES INC /MD/
<0.01%<0.01%#51$19.8M1.5M$20.8M1.6M-80,226-5.17%Reduce
BlackRock, Inc.
<0.01%<0.01%#84$19.5M1.4M$16.1M1.2M+242,185+20.09%Add
SUSQUEHANNA INTERNATIONAL GROUP, LLP
<0.01%<0.01%#64$11.3M840,600$13.8M1.0M-189,543-18.40%Reduce
VANGUARD CAPITAL MANAGEMENT LLC
<0.01%<0.01%#90$9.8M730,831$8.4M626,869+103,962+16.58%Add
CRCM LP
5.44%#1$7.8M583,255$00+583,255New Buy
TIG Advisors, LLC
0.33%0.38%#12$7.6M561,533$8.1M607,552-46,019-7.57%Reduce
GEODE CAPITAL MANAGEMENT, LLC
<0.01%<0.01%#86$5.2M386,929$4.3M319,831+67,098+20.98%Add
TWO SIGMA INVESTMENTS, LP
<0.01%<0.01%#44$4.6M345,481$2.4M178,560+166,921+93.48%Add
GOLDMAN SACHS GROUP INC
<0.01%<0.01%#76$4.2M310,341$4.7M349,950-39,609-11.32%Reduce
683 Capital Management, LLC
0.2%0.21%#15$4.0M300,000$4.0M300,00000.00%Unchanged
STATE STREET CORP
<0.01%<0.01%#101$3.7M271,762$3.4M257,086+14,676+5.71%Add
Arbiter Partners Capital Management LLC
1.85%1.76%#2$3.5M261,288$3.1M230,000+31,288+13.60%Add
CANTOR FITZGERALD, L. P.
0.04%0.05%#25$3.5M256,917$3.2M235,637+21,280+9.03%Add
Slotnik Capital, LLC
0.83%0.71%#6$3.2M237,637$2.4M180,945+56,692+31.33%Add
Weiss Asset Management LP
0.03%0.05%#29$3.0M219,730$3.2M240,701-20,971-8.71%Reduce
MILLENNIUM MANAGEMENT LLC
<0.01%<0.01%#63$2.7M200,559$2.6M190,859+9,700+5.08%Add
Schonfeld Strategic Advisors LLC
0.01%0.02%#38$2.7M199,158$2.2M162,759+36,399+22.36%Add
AQR CAPITAL MANAGEMENT LLC
<0.01%#66$2.3M172,235$00+172,235New Buy
NEXPOINT ASSET MANAGEMENT, L.P.
0.13%0.13%#18$2.0M150,025$2.0M150,02500.00%Unchanged
Polar Asset Management Partners Inc.
0.03%0.02%#27$2.0M150,000$935,90070,000+80,000+114.29%Add
Squarepoint Ops LLC
<0.01%<0.01%#50$2.0M146,743$3.1M231,466-84,723-36.60%Reduce
Bracebridge Capital, LLC
0.37%0.18%#10$1.9M139,239$1.9M139,23900.00%Unchanged
NOMURA HOLDINGS INC
<0.01%<0.01%#49$1.8M137,394$1.8M137,380+14+0.01%Add
Caption Management, LLC
0.01%0.02%#40$1.8M136,077$2.7M204,392-68,315-33.42%Reduce
Yakira Capital Management, Inc.
0.51%0.5%#9$1.8M133,047$1.7M126,645+6,402+5.06%Add
BANK OF AMERICA CORP /DE/
<0.01%<0.01%#100$1.8M132,833$1.8M136,248-3,415-2.51%Reduce
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
<0.01%<0.01%#89$1.8M130,217$1.6M116,598+13,619+11.68%Add
TUDOR INVESTMENT CORP ET AL
<0.01%<0.01%#47$1.7M129,591$954,07071,359+58,232+81.60%Add
DAFNA Capital Management LLC
0.33%#13$1.7M128,000$00+128,000New Buy
Creek Drive Management Group LLC
0.83%0.37%#5$1.7M127,600$1.6M120,000+7,600+6.33%Add
NORGES BANK
<0.01%#92$1.7M126,575$00+126,575New Buy
Anson Funds Management LP
0.1%#20$1.7M125,000$00+125,000New Buy
NORTHERN TRUST CORP
<0.01%<0.01%#91$1.6M119,781$1.3M98,585+21,196+21.50%Add
ExodusPoint Capital Management, LP
0.01%0.6%#37$1.6M117,275$1.2M87,942+29,333+33.35%Add
TD ASSET MANAGEMENT INC
<0.01%<0.01%#61$1.5M111,200$1.5M111,20000.00%Unchanged
VANGUARD FIDUCIARY TRUST CO
<0.01%<0.01%#79$1.5M109,961$1.3M95,128+14,833+15.59%Add
JANE STREET GROUP, LLC
<0.01%<0.01%#99$1.5M109,810$266,79819,955+89,855+450.29%Add
Athos Capital Ltd
0.52%0.45%#8$1.5M107,965$1.4M107,96500.00%Unchanged
AWM Investment Company, Inc.
0.13%0.07%#19$1.4M107,500$668,50050,000+57,500+115.00%Add
BALYASNY ASSET MANAGEMENT L.P.
<0.01%<0.01%#55$1.4M105,875$3.1M235,115-129,240-54.97%Reduce
Marble Bar Asset Management LLP
0.97%1.93%#3$1.4M103,849$2.0M147,000-43,151-29.35%Reduce
VANGUARD PORTFOLIO MANAGEMENT LLC
<0.01%<0.01%#114$1.4M101,195$4.6M344,369-243,174-70.61%Reduce
ADAGE CAPITAL PARTNERS GP, L.L.C.
<0.01%<0.01%#53$1.3M100,000$2.5M183,580-83,580-45.53%Reduce
BlueCrest Capital Management Ltd
0.04%#24$1.3M100,000$00+100,000New Buy
CREDIT INDUSTRIEL ET COMMERCIAL
0.08%0.02%#21$1.2M89,723$307,51023,000+66,723+290.10%Add
Groupe la Francaise
0.01%0.01%#34$1.1M80,273$397,06229,698+50,575+170.30%Add
FIL Ltd
<0.01%<0.01%#68$1.0M76,500$1.0M78,500-2,000-2.55%Reduce
CITADEL ADVISORS LLC
<0.01%<0.01%#105$909,74567,639$1.5M109,936-42,297-38.47%Reduce

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow