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ALLIANCEBERNSTEIN L.P.

Position in AMPH — Amphastar Pharmaceuticals, Inc.

CIK 1109448 NASHVILLE, TN

Position in AMPH

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$1,105,463
-$518,208 QoQ
Shares Held
56,430
-6.9% QoQ
Ownership
0.128%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 74.25128477760057.ToString("F0")% Shared 0.ToString("F0")% None 25.748715222399433.ToString("F0")%

Common Shares in AMPH Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Mar 31, 2026

ALLIANCEBERNSTEIN L.P. holds $800,528,984 across 41 Drug Manufacturers - Specialty & Generic names. AMPH ranks #23 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in AMPH

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $1,105,463 56,430
2025-12-31 $1,623,671 60,630
2025-09-30 $1,349,289 50,630
2025-06-30 $1,162,464 50,630
2025-03-31 $1,467,763 50,630
2024-12-31 $1,879,891 50,630
2024-09-30 $2,413,930 49,741
2024-06-30 $1,990,800 49,770
2024-03-31 $2,074,308 47,240
2023-12-31 $4,755,646 76,890
2023-09-30 $6,068,380 131,950
2023-06-30 $2,878,097 50,080
2023-03-31 $1,683,637 44,897
2022-12-31 $2,254,040 80,444
2022-09-30 $1,418,740 50,489
2022-06-30 $1,751,572 50,347
2022-03-31 $1,658,795 46,206
2021-12-31 $1,072,574 46,053
2021-09-30 $1,671,644 87,935
2021-06-30 $961,027 47,670
2021-03-31 $873,314 47,670
2020-12-31 $1,807,547 89,883
2020-09-30 $1,665,187 88,810
2020-06-30 $2,425,904 108,010
2020-03-31 $1,605,539 108,190