Insider · CIK 0001611286

Petersen Floyd F.

Reports to the SEC for 1 company · RANCHO CUCAMONGA, CA

sec.gov

Transactions

Companies

Filings

CIK

0001611286

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2025-12-12	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−2,426 sh	$25.92	−$62.9K	71,368
2025-12-11	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−1,737 sh	$25.69	−$44.6K	73,794
2025-11-13	AMPHAmphastar Pharmaceuticals, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+16.7K sh	$16.69	+$278K	92,210
2025-11-13	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−16.7K sh	$26.49	−$442K	75,531
2025-11-13	AMPHAmphastar Pharmaceuticals, Inc. · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−16.7K sh	—	—	0
2025-11-03	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$25.27	−$12.6K	75,531
2025-10-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$27.20	−$13.6K	76,031
2025-09-02	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$30.98	−$15.5K	76,531
2025-08-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$20.83	−$10.4K	77,031
2025-07-02	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$23.47	−$11.7K	77,531
2025-06-02	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$25.67	−$12.8K	72,909
2025-06-02	AMPHAmphastar Pharmaceuticals, Inc.A Award	Director	AAward	+5,122 sh	—	—	78,031
2025-06-02	AMPHAmphastar Pharmaceuticals, Inc. · Stock Option (right to buy)A Award	Director	AAward	+11.4K sh	—	—	11,402
2025-05-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$24.08	−$12K	73,409
2025-04-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$28.38	−$14.2K	73,909
2025-03-06	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−1,000 sh	$27.99	−$28K	74,409
2024-09-05	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−3,000 sh	$46.47	−$139K	75,409
2024-06-10	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−3,000 sh	$41.40	−$124K	78,409
2024-06-03	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$42.65	−$21.3K	78,333
2024-06-03	AMPHAmphastar Pharmaceuticals, Inc.A Award	Director	AAward	+3,076 sh	—	—	81,409
2024-06-03	AMPHAmphastar Pharmaceuticals, Inc. · Stock Option (right to buy)A Award	Director	AAward	+6,864 sh	—	—	6,864
2024-05-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$41.67	−$20.8K	78,833
2024-04-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$43.43	−$21.7K	79,333
2024-03-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−451 sh	$45.60	−$20.6K	79,882
2024-03-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−49 sh	$46.53	−$2,279.892	79,833
2024-02-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−474 sh	$53.07	−$25.2K	80,359
2024-02-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−26 sh	$53.64	−$1,394.64	80,333
2024-01-02	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−147 sh	$60.56	−$8,902.085	81,186
2024-01-02	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−353 sh	$61.70	−$21.8K	80,833
2023-12-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−135 sh	$57.24	−$7,727.346	81,698
2023-12-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−365 sh	$58.15	−$21.2K	81,333
2023-11-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$45.30	−$22.7K	81,833
2023-10-02	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$45.78	−$22.9K	82,333
2023-06-05	AMPHAmphastar Pharmaceuticals, Inc.A Award	Director	AAward	+2,716 sh	—	—	82,833
2023-06-05	AMPHAmphastar Pharmaceuticals, Inc. · Stock Option (right to buy)A Award	Director	AAward	+7,016 sh	—	—	7,016
2023-05-17	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−5,000 sh	$43.13	−$216K	80,117
2023-04-03	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−491 sh	$37.72	−$18.5K	85,117
2023-03-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−1 sh	$33.70	−$33.7	86,107
2023-03-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−412 sh	$36.59	−$15.1K	85,695
2023-03-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−87 sh	$37.25	−$3,241.107	85,608
2023-02-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$30.35	−$15.2K	86,108
2023-01-03	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$27.94	−$14K	86,608
2022-12-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$30.13	−$15.1K	87,108
2022-11-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$31.13	−$15.6K	87,608
2022-10-03	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$28.59	−$14.3K	88,108
2022-09-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$29.44	−$14.7K	88,608
2022-08-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$37.48	−$18.7K	89,108
2022-07-01	AMPHAmphastar Pharmaceuticals, Inc.S Sale	Director	SSale	−500 sh	$34.78	−$17.4K	89,608
2022-06-10	AMPHAmphastar Pharmaceuticals, Inc.A Award	Director	AAward	+4,163 sh	—	—	90,108
2022-06-10	AMPHAmphastar Pharmaceuticals, Inc. · Stock Option (right to buy)A Award	Director	AAward	+11K sh	—	—	10,984

Recent filings

Accepted (ET)
Dec 154
Petersen Floyd F.0001611286-25-000011
SEC(opens sec.gov)
Nov 174
Petersen Floyd F.0001611286-25-000009
SEC(opens sec.gov)
Nov 54
Petersen Floyd F.0001611286-25-000007
SEC(opens sec.gov)
Oct 24
Petersen Floyd F.0001611286-25-000005
SEC(opens sec.gov)
Sep 34
Petersen Floyd F.0001415889-25-023538
SEC(opens sec.gov)
Aug 44
Petersen Floyd F.0001415889-25-020987
SEC(opens sec.gov)
Jul 34
Petersen Floyd F.0001415889-25-019356
SEC(opens sec.gov)
Jun 44
Petersen Floyd F.0001415889-25-015658
SEC(opens sec.gov)
May 24
Petersen Floyd F.0001415889-25-011878
SEC(opens sec.gov)
Apr 24
Petersen Floyd F.0001415889-25-009776
SEC(opens sec.gov)
Mar 74
Petersen Floyd F.0001415889-25-007365
SEC(opens sec.gov)
Sep 64
Petersen Floyd F.0001415889-24-023057
SEC(opens sec.gov)
Jun 114
Petersen Floyd F.0001415889-24-016425
SEC(opens sec.gov)
Jun 54
Petersen Floyd F.0001415889-24-015652
SEC(opens sec.gov)

Companies

Amphastar Pharmaceuticals, Inc.DirectorAMPH

Address

C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET

RANCHO CUCAMONGA, CA, 91730