LONGFELLOW INVESTMENT MANAGEMENT CO LLC
Position in RNA — Atrium Therapeutics, Inc.
CIK 1167487
BOSTON, MA
Position in RNA
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$1,439
+$9 QoQ
Shares Held
107
0.0% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#129
of 153 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority
Sole 98%
Shared 0%
None 2%
Common Shares in RNA Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026LONGFELLOW INVESTMENT MANAGEMENT CO LLC holds $82,537 across 3 Biotechnology names. RNA ranks #2 (1.7% of the industry book) .
All Filings in RNA
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,439 | 107 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $1,430 | 107 | Shares | Sole | 2026-05-12 | |
| No filing history on record for this holder in this stock. | ||||||