Y-Intercept (HK)’s Amphastar Pharmaceuticals AMPH Stock Holding History

Y-Intercept (HK)’s Portfolio AMPH Stock Details AMPH Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$700K	Buy	+34,704	New	+$700K	0.01%	1194
2025 Q4	–	Sell	-25,090	Closed	-$669K	–	1510
2025 Q3	$669K	Buy	25,090 +7,363	+42%	+$190K	0.02%	1157
2025 Q2	$407K	Buy	+17,727	New	+$440K	0.01%	1266
2023 Q4	–	Sell	-5,746	Closed	-$264K	–	1204
2023 Q3	$264K	Buy	+5,746	New	+$313K	0.03%	810

Other funds holding AMPH

LAM Group Lake Oswego, Oregon $201M AUM 22.35% 1-Year Est. Return

ETC

Exchange Traded Concepts Oklahoma City, Oklahoma $21.9B AUM 68.6% 1-Year Est. Return

Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

SteelPeak Wealth Woodland Hills, California $3.86B AUM 48.92% 1-Year Est. Return

PCM

Polaris Capital Management Boston, Massachusetts $1.06B AUM 40.82% 1-Year Est. Return

SIM

SummerHaven Investment Management Stamford, Connecticut $187M AUM 70.61% 1-Year Est. Return

SOADOR

State of Alaska Department of Revenue Juneau, Alaska $10.1B AUM 42.83% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return

Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return

LSERS

Louisiana State Employees Retirement System Baton Rouge, Louisiana $6.74B AUM 53.06% 1-Year Est. Return

Y-Intercept (HK)'s AMPH Position: Q2 2026 in Review

Y-Intercept (HK) opened a new position in Amphastar Pharmaceuticals (AMPH) in Q2 2026: 34,704 shares worth $700K. The stake represents 0.01% of the portfolio and ranks #1194 among its holdings. This is a return to the name: Y-Intercept (HK) previously reported a position in AMPH as recently as Q3 2025.

Y-Intercept (HK) first reported a position in AMPH in Q3 2023 and has held it in 4 quarters since. 42 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

Y-Intercept (HK) held 34,704 shares of Amphastar Pharmaceuticals worth $700K as of Q2 2026.
Amphastar Pharmaceuticals was a new Y-Intercept (HK) position in Q2 2026.
Amphastar Pharmaceuticals made up 0.01% of Y-Intercept (HK)'s portfolio in Q2 2026, its #1194 holding.
Y-Intercept (HK) first reported a position in Amphastar Pharmaceuticals in Q3 2023 and has held it in 4 quarters since.
42 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on Y-Intercept (HK)'s 13F filing for Q2 2026, filed 14 Jul 2026.