VOLORIDGE INVESTMENT MANAGEMENT, LLC
Position in AMPH — Amphastar Pharmaceuticals, Inc.
CIK 1556921
JUPITER, FL
Position in AMPH
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$3,353,572
-$2,840,775 QoQ
Shares Held
171,188
-26.0% QoQ
Ownership
0.388%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2020
18 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in AMPH Over Time
Shares Held
Position Value (USD)
Position in Drug Manufacturers - Specialty & Generic
Healthcare · as of Mar 31, 2026VOLORIDGE INVESTMENT MANAGEMENT, LLC holds $160,704,963 across 12 Drug Manufacturers - Specialty & Generic names. AMPH ranks #7 (2.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ZTS |
Zoetis Inc.
|
853,063 | $100,840,577 | |
| 2 | HLN |
Haleon plc
|
1,667,494 | $16,691,614 | |
| 3 | TEVA |
Teva Pharmaceutical Industries Ltd
|
379,586 | $11,433,130 | |
| 4 | VTRS |
Viatris Inc
|
492,473 | $6,653,310 | |
| 5 | COLL |
Collegium Pharmaceutical, Inc
|
200,306 | $6,624,119 | |
| 6 | KNSA |
Kiniksa Pharmaceuticals International, plc
|
134,516 | $6,476,945 | |
| 7 | AMPH |
Amphastar Pharmaceuticals, Inc.
This page
|
171,188 | $3,353,572 | |
| 8 | LQDA |
Liquidia Corp
|
75,602 | $2,853,219 |
All Filings in AMPH
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18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,353,572 | 171,188 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $6,194,347 | 231,305 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $7,793,605 | 292,443 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $7,473,755 | 325,512 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $6,261,897 | 216,002 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $5,325,778 | 143,436 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $5,990,785 | 123,445 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $8,058,920 | 201,473 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $9,739,238 | 221,800 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $14,143,177 | 228,669 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $17,076,546 | 371,310 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $10,800,854 | 187,939 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $2,735,400 | 72,944 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $2,651,280 | 94,621 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $4,559,449 | 162,258 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $6,157,203 | 176,982 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $3,377,113 | 94,070 | Shares | Sole | 2022-05-16 | |
| 2020-09-30 | $853,893 | 45,541 | Shares | Sole | 2020-11-16 | |
| No filing history on record for this holder in this stock. | ||||||