GSA Capital Partners’s Amphastar Pharmaceuticals AMPH Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-57,057	Closed	-$1.31M	–	1628
2025 Q2	$1.31M	Buy	57,057 +11,760	+26%	+$292K	0.09%	301
2025 Q1	$1.31M	Buy	45,297 +27,863	+160%	+$890K	0.12%	221
2024 Q4	$647K	Buy	17,434 +11,185	+179%	+$511K	0.05%	712
2024 Q3	$303K	Buy	+6,249	New	+$274K	0.02%	1208
2023 Q2	–	Sell	-21,852	Closed	-$819K	–	1488
2023 Q1	$819K	Buy	+21,852	New	+$716K	0.08%	429
2021 Q2	–	Sell	-34,425	Closed	-$631K	–	1298
2021 Q1	$631K	Buy	+34,425	New	+$640K	0.1%	243
2018 Q3	–	Sell	-33,000	Closed	-$504K	–	1613
2018 Q2	$504K	Buy	+33,000	New	+$577K	0.03%	1149
2017 Q4	–	Sell	-22,400	Closed	-$400K	–	1539
2017 Q3	$400K	Buy	+22,400	New	+$368K	0.03%	1094
2017 Q1	–	Sell	-56,544	Closed	-$1.04M	–	1726
2016 Q4	$1.04M	Buy	56,544 +38,444	+212%	+$748K	0.06%	544
2016 Q3	$343K	Buy	+18,100	New	+$329K	0.02%	1285
2016 Q1	–	Sell	-11,500	Closed	-$164K	–	1647
2015 Q4	$164K	Sell	11,500 -986	-8%	-$13K	0.01%	1678
2015 Q3	$146K	Buy	+12,486	New	+$187K	0.01%	1620
2015 Q2	–	Sell	-14,400	Closed	-$215K	–	1927
2015 Q1	$215K	Sell	14,400 -15,900	-52%	-$213K	0.01%	1891
2014 Q4	$352K	Buy	+30,300	New	+$330K	0.02%	1170