Canada Pension Plan Investment Board
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Canada Pension Plan Investment Board’s Amphastar Pharmaceuticals AMPH Stock Holding History

Canada Pension Plan Investment Board’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
Q1 		$319K Sell
16,300
-13,500
-45% -$330K ﹤0.01% 1400
2025
Q4 		$798K Buy
29,800
+9,100
+44% +$234K ﹤0.01% 1134
2025
Q3 		$552K Buy
20,700
+16,500
+393% +$426K ﹤0.01% 1034
2025
Q2 		$96.4K Buy
4,200
+1,500
+56% +$37.2K ﹤0.01% 1186
2025
Q1 		$78.3K Buy
2,700
+2,600
+2,600% +$83K ﹤0.01% 1162
2024
Q4 		$3.71K Buy
+100
New +$4.57K ﹤0.01% 1386

Other funds holding AMPH

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
TD Asset Management
TD Asset Management Toronto, Ontario, Canada $123B AUM 34.51% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
BTW
Boston Trust Walden Boston, Massachusetts $12.2B AUM 12.45% 1-Year Est. Return

Canada Pension Plan Investment Board's AMPH Position: Q1 2026 in Review

Canada Pension Plan Investment Board reduced its Amphastar Pharmaceuticals (AMPH) stake by 45% in Q1 2026, selling an estimated $330K and leaving 16,300 shares worth $319K. The position accounts for ﹤0.01% of the portfolio, ranked #1400.

Canada Pension Plan Investment Board first reported a position in AMPH in Q4 2024 and has held it in 6 quarters since. The position peaked at $798K in Q4 2025. 215 funds tracked by Wall St. Rank hold AMPH as of Q1 2026.

  • Canada Pension Plan Investment Board held 16,300 shares of Amphastar Pharmaceuticals worth $319K as of Q1 2026.
  • Canada Pension Plan Investment Board sold 13,500 Amphastar Pharmaceuticals shares in Q1 2026, an estimated $330K.
  • Amphastar Pharmaceuticals made up ﹤0.01% of Canada Pension Plan Investment Board's portfolio in Q1 2026, its #1400 holding.
  • Canada Pension Plan Investment Board first reported a position in Amphastar Pharmaceuticals in Q4 2024 and has held it in 6 quarters since.
  • Canada Pension Plan Investment Board's Amphastar Pharmaceuticals position peaked at $798K in Q4 2025.
  • 215 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q1 2026.

Based on Canada Pension Plan Investment Board's 13F filing for Q1 2026, filed 15 May 2026.