Northwestern Mutual Wealth Management’s Amphastar Pharmaceuticals AMPH Stock Holding History

Northwestern Mutual Wealth Management’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
2025 Q4	–	Sell	-62	Closed	-$1.65K	–	4017
2025 Q3	$1.65K	Hold	62	–	–	﹤0.01%	3440
2025 Q2	$1.42K	Buy	+62	New	+$1.54K	﹤0.01%	3334
2024 Q4	–	Sell	-200	Closed	-$9.71K	–	3601
2024 Q3	$9.71K	Buy	+200	New	+$8.78K	﹤0.01%	2695
2017 Q1	–	Sell	-199	Closed	-$4K	–	2002
2016 Q4	$4K	Buy	+199	New	+$3.87K	﹤0.01%	1886

Other funds holding AMPH

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

TD Asset Management Toronto, Ontario, Canada $115B AUM 41.58% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

EIP

Epoch Investment Partners New York $16.5B AUM 24.3% 1-Year Est. Return

BTW

Boston Trust Walden Boston, Massachusetts $13.1B AUM 24.63% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Northwestern Mutual Wealth Management's AMPH Position: Q4 2025 in Review

Northwestern Mutual Wealth Management sold out of Amphastar Pharmaceuticals (AMPH) in Q4 2025, closing a stake of 62 shares — an estimated $1.65K sold.

Northwestern Mutual Wealth Management first reported a position in AMPH in Q4 2016 and held it in 4 quarters. The position peaked at $9.71K in Q3 2024. 235 funds tracked by Wall St. Rank hold AMPH as of Q4 2025.

Northwestern Mutual Wealth Management reported no remaining Amphastar Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
Northwestern Mutual Wealth Management sold 62 Amphastar Pharmaceuticals shares in Q4 2025, an estimated $1.65K.
Northwestern Mutual Wealth Management first reported a position in Amphastar Pharmaceuticals in Q4 2016 and held it in 4 quarters.
Northwestern Mutual Wealth Management's Amphastar Pharmaceuticals position peaked at $9.71K in Q3 2024.
235 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q4 2025.

Based on Northwestern Mutual Wealth Management's 13F filing for Q4 2025, filed 5 Feb 2026.