Arbiter Partners Capital Management LLC
Position in RNA — Atrium Therapeutics, Inc.
CIK 1513193
NEW YORK, NY
Position in RNA
as of Mar 31, 2026
· filed May 12, 2026
Position Value
$3,075,100
New position
Shares Held
230,000
first reported quarter
Ownership
1.34%
of shares outstanding
% of Portfolio
2.43%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2026
1 quarter on record
Voting authority
Sole 100%
Shared 0%
None 0%
Position in Biotechnology
Healthcare · as of Mar 31, 2026Arbiter Partners Capital Management LLC holds $3,377,458 across 2 Biotechnology names. RNA ranks #1 (91.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | RNA |
Atrium Therapeutics, Inc.
This page
|
230,000 | $3,075,100 | |
| 2 | OABIW |
OmniAb, Inc.
|
192,585 | $302,358 |
All Filings in RNA
Export CSV
1 filing row on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,075,100 | 230,000 | Shares | Defined | 2026-05-12 | |
| No filing history on record for this holder in this stock. | ||||||