Position in AMPH
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$401,497
-$146,877 QoQ
Shares Held
20,495
+0.1% QoQ
Ownership
0.046%
of shares outstanding
% of Portfolio
0.14%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2025
3 quarters on record
Voting authority
Sole 99.585264698707.ToString("F0")%
Shared 0.ToString("F0")%
None 0.4147353012929983.ToString("F0")%
Common Shares in AMPH Over Time
Shares Held
Position Value (USD)
Position in Drug Manufacturers - Specialty & Generic
Healthcare · as of Mar 31, 2026Round Rock Advisors LLC holds $4,278,133 across 10 Drug Manufacturers - Specialty & Generic names. AMPH ranks #5 (9.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALKS |
Alkermes plc.
|
17,942 | $634,429 | |
| 2 | ANIP |
Ani Pharmaceuticals Inc
|
8,076 | $621,044 | |
| 3 | HROW |
Harrow, Inc.
|
17,481 | $616,380 | |
| 4 | XERS |
Xeris Biopharma Holdings, Inc.
|
96,816 | $561,532 | |
| 5 | AMPH |
Amphastar Pharmaceuticals, Inc.
This page
|
20,495 | $401,497 | |
| 6 | COLL |
Collegium Pharmaceutical, Inc
|
10,690 | $353,518 | |
| 7 | KNSA |
Kiniksa Pharmaceuticals International, plc
|
7,226 | $347,931 | |
| 8 | ESPR |
Esperion Therapeutics, Inc.
|
101,553 | $278,255 |
All Filings in AMPH
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $401,497 | 20,495 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $548,374 | 20,477 | Shares | Sole | 2026-04-07 | |
| 2025-09-30 | $228,657 | 8,580 | Shares | Sole | 2025-11-14 | |
| No filing history on record for this holder in this stock. | ||||||