Position in PRTA
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$285,868
+$2,044 QoQ
Shares Held
29,200
0.0% QoQ
Ownership
0.057%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#81
of 187 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PRTA Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026RBF Capital, LLC holds $5,245,524 across 20 Biotechnology names. PRTA ranks #9 (5.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | KROS |
Keros Therapeutics, Inc.
|
62,800 | $671,960 | |
| 2 | STRO |
Sutro Biopharma, Inc.
|
15,272 | $507,030 | |
| 3 | BOLD |
Boundless Bio, Inc.
|
200,000 | $500,000 | |
| 4 | XBIT |
XBiotech Inc.
|
198,501 | $456,552 | |
| 5 | ZURA |
Zura Bio Ltd
|
58,193 | $343,338 | |
| 6 | ACET |
Adicet Bio, Inc.
|
38,582 | $333,348 | |
| 7 | CTNM |
Contineum Therapeutics, Inc.
|
20,000 | $327,800 | |
| 8 | DNTH |
Dianthus Therapeutics, Inc. /DE/
|
3,000 | $292,440 |
All Filings in PRTA
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $285,868 | 29,200 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $283,824 | 29,200 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $278,860 | 29,200 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $284,992 | 29,200 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $177,244 | 29,200 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $361,350 | 29,200 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $404,420 | 29,200 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $758,906 | 45,362 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $936,271 | 45,362 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $1,123,616 | 45,362 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $1,648,455 | 45,362 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $2,622,966 | 54,362 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $3,711,837 | 54,362 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $2,634,926 | 54,362 | Shares | Sole | 2023-05-16 | |
| 2022-12-31 | $3,275,310 | 54,362 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $3,295,968 | 54,362 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $1,231,578 | 45,362 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $1,658,888 | 45,362 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $2,240,882 | 45,362 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $3,231,135 | 45,362 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $2,332,060 | 45,362 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $1,139,493 | 45,362 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $544,797 | 45,362 | Shares | Sole | 2021-03-02 | |
| 2020-09-30 | $453,166 | 45,362 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $474,486 | 45,362 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $485,373 | 45,362 | Shares | Sole | 2020-05-18 | |
| No filing history on record for this holder in this stock. | ||||||