Position in CRBU
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$76,000
+$12,400 QoQ
Shares Held
40,000
0.0% QoQ
Ownership
0.040%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#52
of 137 holders
Holding Since
Jun 2025
4 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in CRBU Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026RBF Capital, LLC holds $7,669,628 across 23 Biotechnology names. CRBU ranks #22 (1.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | XOMA |
XOMA Royalty Corp
|
30,000 | $941,100 | |
| 2 | LYEL |
Lyell Immunopharma, Inc.
|
44,094 | $884,525 | |
| 3 | RLMD |
Relmada Therapeutics, Inc.
|
120,000 | $835,200 | |
| 4 | KROS |
Keros Therapeutics, Inc.
|
62,800 | $693,312 | |
| 5 | FULC |
Fulcrum Therapeutics, Inc.
|
70,000 | $536,900 | |
| 6 | XBIT |
XBiotech Inc.
|
198,501 | $466,477 | |
| 7 | STRO |
Sutro Biopharma, Inc.
|
15,272 | $380,425 | |
| 8 | ZURA |
Zura Bio Ltd
|
58,193 | $346,248 |
All Filings in CRBU
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $76,000 | 40,000 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $63,600 | 40,000 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $186,400 | 80,000 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $100,800 | 80,000 | Shares | Sole | 2025-08-14 | |
| No filing history on record for this holder in this stock. | ||||||