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Robeco Institutional Asset Management B.V.

Position in AMPH — Amphastar Pharmaceuticals, Inc.

CIK 1418773 ROTTERDAM, P7

Position in AMPH

as of Jun 30, 2026 · filed Jul 21, 2026
Position Value
$1,340,093
+$39,180 QoQ
Shares Held
66,407
0.0% QoQ
Ownership
0.156%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#53
of 209 holders
Holding Since
Mar 2022
5 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in AMPH Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Jun 30, 2026

Robeco Institutional Asset Management B.V. holds $403,524,623 across 13 Drug Manufacturers - Specialty & Generic names. AMPH ranks #11 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in AMPH

Export CSV
5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,340,093 66,407
2026-03-31 $1,300,913 66,407
2022-09-30 $1,025,565 36,497
2022-06-30 $1,269,730 36,497
2022-03-31 $1,204,839 33,561