MassMutual Private Wealth & Trust’s Amphastar Pharmaceuticals AMPH Stock Holding History

MassMutual Private Wealth & Trust’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 Q3	$9.42K	Sell	365 -68	-16%	-$1.47K	﹤0.01%	1355
2026 Q2	$8.74K	Buy	433 +209	+93%	+$4.22K	﹤0.01%	1464
2026 Q1	$4.39K	Sell	224 -543	-71%	-$13.3K	﹤0.01%	1733
2025 Q4	$20.5K	Sell	767 -160	-17%	-$4.12K	﹤0.01%	1108
2025 Q3	$24.7K	Sell	927 -335	-27%	-$8.65K	﹤0.01%	1033
2025 Q2	$29K	Buy	1,262 +831	+193%	+$20.6K	﹤0.01%	955
2025 Q1	$12.5K	Buy	431 +334	+344%	+$10.7K	﹤0.01%	1217
2024 Q4	$3.6K	Hold	97	–	–	﹤0.01%	1656
2024 Q3	$4.71K	Hold	97	–	–	﹤0.01%	1407
2024 Q2	$3.88K	Hold	97	–	–	﹤0.01%	1399
2024 Q1	$4.26K	Hold	97	–	–	﹤0.01%	1324
2023 Q4	$6K	Hold	97	–	–	﹤0.01%	1183
2023 Q3	$4.46K	Hold	97	–	–	﹤0.01%	1283
2023 Q2	$5.58K	Hold	97	–	–	﹤0.01%	1177
2023 Q1	$3.64K	Hold	97	–	–	﹤0.01%	1229
2022 Q4	$3K	Hold	97	–	–	﹤0.01%	1120
2022 Q3	$3K	Sell	97 -9	-8%	-$294	﹤0.01%	1058
2022 Q2	$4K	Buy	106 +9	+9%	+$321	﹤0.01%	934
2022 Q1	$3K	Hold	97	–	–	﹤0.01%	1023
2021 Q4	$2K	Buy	+97	New	+$1.98K	﹤0.01%	1056
2021 Q3	–	Sell	-129	Closed	-$3K	–	1257
2021 Q2	$3K	Buy	+129	New	+$2.43K	﹤0.01%	919

Other funds holding AMPH

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $54.1B AUM 39.29% 1-Year Est. Return

Bridge City Capital Lake Oswego, Oregon $480M AUM 47.16% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return

Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

Universal-Beteiligungs- und Servicegesellschaft Frankfurt Am Main, Germany $65.3B AUM 33.78% 1-Year Est. Return

LAM Group Lake Oswego, Oregon $199M AUM 14.21% 1-Year Est. Return

Bessemer Group Woodbridge, New Jersey $72.8B AUM 32.97% 1-Year Est. Return

Nordea Investment Management Stockholm, Sweden $127B AUM 33.25% 1-Year Est. Return

MassMutual Private Wealth & Trust's AMPH Position: Q3 2026 in Review

MassMutual Private Wealth & Trust reduced its Amphastar Pharmaceuticals (AMPH) stake by 16% in Q3 2026, selling an estimated $1.47K and leaving 365 shares worth $9.42K. The position accounts for ﹤0.01% of the portfolio, ranked #1355.

MassMutual Private Wealth & Trust first reported a position in AMPH in Q2 2021 and has held it in 21 quarters since. The position peaked at $29K in Q2 2025. 105 funds tracked by Wall St. Rank hold AMPH as of Q3 2026.

MassMutual Private Wealth & Trust held 365 shares of Amphastar Pharmaceuticals worth $9.42K as of Q3 2026.
MassMutual Private Wealth & Trust sold 68 Amphastar Pharmaceuticals shares in Q3 2026, an estimated $1.47K.
Amphastar Pharmaceuticals made up ﹤0.01% of MassMutual Private Wealth & Trust's portfolio in Q3 2026, its #1355 holding.
MassMutual Private Wealth & Trust first reported a position in Amphastar Pharmaceuticals in Q2 2021 and has held it in 21 quarters since.
MassMutual Private Wealth & Trust's Amphastar Pharmaceuticals position peaked at $29K in Q2 2025.
105 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q3 2026.

Based on MassMutual Private Wealth & Trust's 13F filing for Q3 2026, filed 5 Oct 2026.