Latest filing published 03 Jun 2026 for Amphastar Pharmaceuticals, Inc..
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Diane G. Gerst: trading record in brief
Diane G. Gerst (board member) discloses dealings in Amphastar Pharmaceuticals, Inc. to SEC (Form 4). We count 51 filings; the first trade dates from 26 March 2015 and the latest from 1 June 2026.
The open-market record consists of 19 sales worth €1.4M, with no purchase. Other entries cover 20 share grants and 12 option exercises.
The record was last updated on 3 June 2026 with a share grant in Amphastar Pharmaceuticals, Inc. Typically, a trade is published a median of 2 days after it takes place. The legal deadline for a Form 4 is two business days after the transaction. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
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- 8,143 shares0Common StockSEC:0001611283-26-000003:0
- 5,122 shares0Common StockSEC:0001415889-25-015664:0
- 3,076 shares0Common StockSEC:0001415889-24-015660:0
- 2,716 shares0Common StockSEC:0001104659-23-068999:0
- 1,520 shares@ US$20.0811.1% of flowCommon StockSEC:0001104659-22-080883:0
- 1,520 shares@ US$37.234620.6% of flowCommon StockSEC:0001104659-22-080883:1
- 1,521 shares@ US$20.0811.2% of flowCommon StockSEC:0001104659-22-079289:0
- 1,521 shares@ US$36.255720.3% of flowCommon StockSEC:0001104659-22-079289:1
- 1,813 shares@ US$35.003.0% of flowCommon StockSEC:0001104659-22-077826:1
- 1,813 shares@ US$20.0813.1% of flowCommon StockSEC:0001104659-22-077826:0
- 5,146 shares@ US$35.008.4% of flowCommon StockSEC:0001104659-22-077306:2
- 1,813 shares@ US$20.081.7% of flowCommon StockSEC:0001104659-22-077306:1
- 3,333 shares@ US$20.0323.6% of flowCommon StockSEC:0001104659-22-077306:0
- 4,163 shares0Common StockSEC:0001104659-22-071076:0
- 3,009 shares0Common StockSEC:0001104659-21-078409:0
- 2,925 shares0Common StockSEC:0001104659-20-071605:0
- 2,745 shares0Common StockSEC:0001104659-19-035438:0
- 523 shares@ US$19.480.5% of flowCommon StockSEC:0001104659-17-074116:0
- 523 shares@ US$18.960.5% of flowCommon StockSEC:0001104659-17-073456:0
- 523 shares@ US$18.150.4% of flowCommon StockSEC:0001104659-17-071205:0
- 523 shares@ US$18.810.5% of flowCommon StockSEC:0001209191-17-062137:0
- 523 shares@ US$17.770.4% of flowCommon StockSEC:0001104659-17-069496:0
- 523 shares@ US$17.930.5% of flowCommon StockSEC:0001104659-17-067522:0
- 523 shares@ US$18.290.5% of flowCommon StockSEC:0001104659-17-064080:0
- 523 shares@ US$18.480.5% of flowCommon StockSEC:0001104659-17-063006:0
25 of 51 declarations
