Atrium Therapeutics Inc. logo

Atrium Therapeutics Inc.

RNA | NASDAQ
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$9.21
+$0.26 (+2.91%)
Sep 21, 2026, 12:12 PM ET · Market open

Institutional Ownership

Net Outflow
Dollar & Volume Weighted
Total Institutions
168
Total Ownership
86.88%
Capital Flow
-$2.01B
Shares Change
-134.89M
Ownership Distribution
Institutions (86.88%)
Others (13.12%)

Institutional Sentiment

Overall: bearish
Equity Sentiment & Activity
bearish
New Positions
24
Increased Positions
40
Reduced Positions
119
Closed Positions
210
New (24)
Increased (40)
Reduced (119)
Closed (210)
Options Sentiment & Activity
bearish
Put/Call Ratio
17.288
Call Flow
66,000
Put Flow
1,140,978
Calls (5%)
Puts (95%)

Super Investors

Super Investor / Fund Ownership Portfolio Weight Shares Market Value
Tudor Investment Corp ET AL
0.76%
+81.60%
< 0.01%
129.59K
1.16M
Renaissance Technologies LLC
0.09%
0.00%
< 0.01%
14.97K
133.99K

Top Shareholders

Institution Ownership Portfolio Weight Shares Market Value
Price T Rowe Associates Inc /md/
9.08%
+100.00%
< 0.01%
+100.00%
1.55M
+100.00%
20.77M
+100.00%
Blackrock, Inc.
7.05%
+100.00%
< 0.01%
+100.00%
1.21M
+100.00%
16.11M
+100.00%
Susquehanna International Group, Llp
5.96%
+100.00%
< 0.01%
+100.00%
1.02M
+100.00%
13.62M
+100.00%
Pro Membership

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