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Flock — Smart-money disclosures, made readable

Amphastar Pharmaceuticals In

AMPHNASDAQ · US

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Holders

BlackRock
13F filer
$237.7M
5,942,524 sh
as-of 30 Jun 2024Stale
Renaissance Technologies
13F filer
$10.9M
553,900 sh
as-of 31 Mar 2026Quarterly
Two Sigma Investments
13F filer
$2.7M
138,148 sh
as-of 31 Mar 2026Quarterly

Ownership

Ownership data not yet available for this security.

Disclosure timeline

DISCLOSEDQuarterly
Renaissance Technologies
Amphastar Pharmaceuticals In · NASDAQ
553,900 sh · $10.9M
Filed 31 Mar 2026SEC 13Fview source
DISCLOSEDQuarterly
Two Sigma Investments
Amphastar Pharmaceuticals In · NASDAQ
138,148 sh · $2.7M
Filed 31 Mar 2026SEC 13Fview source
DISCLOSEDStale
BlackRock
Amphastar Pharmaceuticals In · NASDAQ
5,942,524 sh · $237.7M
Filed 30 Jun 2024SEC 13Fview source

Announcements

No announcements on record for this security.

AMPHNASDAQ · US

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Latest filing31 Mar 2026Stale

3 disclosed holders · 3 disclosures · 0 announcements

Ownership

Ownership data not yet available for this security.

Announcements

No announcements on record for this security.