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Illumine Investment Management’s Amphastar Pharmaceuticals AMPH Stock Holding History

Illumine Investment 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
2026
Q2 		– Sell
-28,078
Closed -$566K – 75
2026
Q1 		$550K Sell
28,078
-250
-0.9% -$6.12K 0.42% 74
2025
Q4 		$759K Buy
28,328
+651
+2% +$16.8K 0.55% 60
2025
Q3 		$738K Buy
27,677
+551
+2% +$14.2K 0.53% 65
2025
Q2 		$623K Buy
27,126
+596
+2% +$14.8K 0.5% 65
2025
Q1 		$769K Buy
26,530
+9,481
+56% +$303K 0.63% 46
2024
Q4 		$633K Buy
+17,049
New +$780K 0.52% 57

Other funds holding AMPH

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Illumine Investment Management's AMPH Position: Q2 2026 in Review

Illumine Investment Management sold out of Amphastar Pharmaceuticals (AMPH) in Q2 2026, closing a stake of 28,078 shares — an estimated $566K sold.

Illumine Investment Management first reported a position in AMPH in Q4 2024 and held it in 6 quarters. The position peaked at $769K in Q1 2025. 211 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

  • Illumine Investment Management reported no remaining Amphastar Pharmaceuticals position as of Q2 2026 after selling out during the quarter.
  • Illumine Investment Management sold 28,078 Amphastar Pharmaceuticals shares in Q2 2026, an estimated $566K.
  • Illumine Investment Management first reported a position in Amphastar Pharmaceuticals in Q4 2024 and held it in 6 quarters.
  • Illumine Investment Management's Amphastar Pharmaceuticals position peaked at $769K in Q1 2025.
  • 211 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on Illumine Investment Management's 13F filing for Q2 2026, filed 29 Jul 2026.