VANGUARD PORTFOLIO MANAGEMENT LLC
Position in AMPH — Amphastar Pharmaceuticals, Inc.
CIK 2100121
MALVERN, PA
Position in AMPH
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$16,337,082
+$903,767 QoQ
Shares Held
809,568
+2.8% QoQ
Ownership
1.90%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#10
of 209 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority
Sole 0%
Shared 0%
None 100%
Common Shares in AMPH Over Time
Shares Held
Position Value (USD)
Position in Drug Manufacturers - Specialty & Generic
Healthcare · as of Jun 30, 2026VANGUARD PORTFOLIO MANAGEMENT LLC holds $7,792,404,186 across 40 Drug Manufacturers - Specialty & Generic names. AMPH ranks #24 (0.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ZTS |
Zoetis Inc.
|
23,860,445 | $1,714,611,577 | |
| 2 | UTHR |
UNITED THERAPEUTICS Corp
|
1,919,429 | $1,040,004,215 | |
| 3 | VTRS |
Viatris Inc
|
54,282,080 | $861,999,430 | |
| 4 | NBIX |
Neurocrine Biosciences Inc
|
4,974,083 | $838,331,948 | |
| 5 | ELAN |
Elanco Animal Health Inc
|
22,672,312 | $557,965,598 | |
| 6 | ALKS |
Alkermes plc.
|
9,490,818 | $497,318,863 | |
| 7 | HIMS |
Hims & Hers Health, Inc.
|
10,559,314 | $366,091,416 | |
| 8 | LNTH |
Lantheus Holdings, Inc.
|
3,238,471 | $359,275,972 |
All Filings in AMPH
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $16,337,082 | 809,568 | Shares | Defined | 2026-08-13 | |
| 2026-03-31 | $15,433,315 | 787,816 | Shares | Defined | 2026-05-08 | |
| No filing history on record for this holder in this stock. | ||||||