Position in PBYI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$823,747
+$198,748 QoQ
Shares Held
128,912
+22.7% QoQ
Ownership
0.253%
of shares outstanding
% of Portfolio
0.29%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2025
3 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PBYI Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026Round Rock Advisors LLC holds $4,657,848 across 9 Biotechnology names. PBYI ranks #1 (17.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PBYI |
Puma Biotechnology, Inc.
This page
|
128,912 | $823,747 | |
| 2 | CPRX |
Catalyst Pharmaceuticals, Inc.
|
32,438 | $803,164 | |
| 3 | CRMD |
CorMedix Inc.
|
92,681 | $629,303 | |
| 4 | GLUE |
Monte Rosa Therapeutics, Inc.
|
37,229 | $612,417 | |
| 5 | BDTX |
Black Diamond Therapeutics, Inc.
|
274,367 | $584,401 | |
| 6 | PLX |
Protalix BioTherapeutics, Inc.
|
192,080 | $416,813 | |
| 7 | HALO |
Halozyme Therapeutics, Inc.
|
5,362 | $346,546 | |
| 8 | RIGL |
Rigel Pharmaceuticals Inc
|
8,754 | $236,708 |
All Filings in PBYI
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $823,747 | 128,912 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $624,999 | 105,042 | Shares | Sole | 2026-04-07 | |
| 2025-09-30 | $347,252 | 65,396 | Shares | Sole | 2025-11-14 | |
| No filing history on record for this holder in this stock. | ||||||