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Trexquant Investment LP

Position in AMPH — Amphastar Pharmaceuticals, Inc.

CIK 1633445 STAMFORD, CT

Position in AMPH

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$937,714
-$2,106,448 QoQ
Shares Held
47,867
-57.9% QoQ
Ownership
0.109%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2020
18 quarters on record
Voting authority Sole 91.03557774667307.ToString("F0")% Shared 0.ToString("F0")% None 8.964422253326926.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

Trexquant Investment LP holds $120,085,995 across 26 Drug Manufacturers - Specialty & Generic names. AMPH ranks #21 (0.8% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in AMPH

Export CSV
18 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $937,714 47,867
2025-12-31 $3,044,162 113,673
2025-06-30 $3,564,057 155,229
2025-03-31 $2,646,526 91,291
2024-12-31 $3,918,254 105,528
2024-09-30 $4,332,758 89,280
2024-06-30 $4,229,800 105,745
2024-03-31 $3,412,904 77,725
2023-12-31 $2,409,614 38,959
2023-06-30 $588,435 10,239
2023-03-31 $2,118,900 56,504
2022-12-31 $1,013,903 36,185
2022-09-30 $744,144 26,482
2022-06-30 $1,091,118 31,363
2022-03-31 $1,306,939 36,405
2021-12-31 $303,748 13,042
2021-03-31 $229,054 12,503
2020-06-30 $538,590 23,980