Twin Securities, Inc.
Broker-DealerPosition in RNA — Atrium Therapeutics, Inc.
CIK 1351351
New York, NY
Position in RNA
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$356,653
-$310,683 QoQ
Shares Held
26,517
-46.9% QoQ
Ownership
0.155%
of shares outstanding
% of Portfolio
0.18%
of 13F equity value
Holder Rank
#71
of 154 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in RNA Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026Twin Securities, Inc. holds $16,284,253 across 2 Biotechnology names. RNA ranks #2 (2.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | 120,000 | $15,927,600 | |||
| 2 | RNA |
Atrium Therapeutics, Inc.
This page
|
26,517 | $356,653 |
All Filings in RNA
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $356,653 | 26,517 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $667,336 | 49,913 | Shares | Sole | 2026-05-15 | |
| No filing history on record for this holder in this stock. | ||||||