William Blair Investment Management
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William Blair Investment Management’s IAMGOLD IAG Stock Holding History

William Blair Investment Management’s Portfolio IAG Stock Details IAG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$11.3M Sell
714,288
-191,658
-21% -$3.35M 0.03% 303
2026
Q1 		$17M Sell
905,946
-315,665
-26% -$6.26M 0.06% 265
2025
Q4 		$20.1M Sell
1,221,611
-123,224
-9% -$1.74M 0.06% 270
2025
Q3 		$17.4M Buy
+1,344,835
New +$11.8M 0.05% 291

Other funds holding IAG

VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $139B AUM 29.06% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Donald Smith & Co
Donald Smith & Co New York $5.65B AUM 47.79% 1-Year Est. Return
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $52.8B AUM 58.98% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $100B AUM 36.93% 1-Year Est. Return

William Blair Investment Management's IAG Position: Q2 2026 in Review

William Blair Investment Management reduced its IAMGOLD (IAG) stake by 21% in Q2 2026, selling an estimated $3.35M and leaving 714,288 shares worth $11.3M. The position accounts for 0.03% of the portfolio, ranked #303.

William Blair Investment Management first reported a position in IAG in Q3 2025 and has held it in 4 quarters since. The position peaked at $20.1M in Q4 2025. 319 funds tracked by Wall St. Rank hold IAG as of Q2 2026.

  • William Blair Investment Management held 714,288 shares of IAMGOLD worth $11.3M as of Q2 2026.
  • William Blair Investment Management sold 191,658 IAMGOLD shares in Q2 2026, an estimated $3.35M.
  • IAMGOLD made up 0.03% of William Blair Investment Management's portfolio in Q2 2026, its #303 holding.
  • William Blair Investment Management first reported a position in IAMGOLD in Q3 2025 and has held it in 4 quarters since.
  • William Blair Investment Management's IAMGOLD position peaked at $20.1M in Q4 2025.
  • 319 funds tracked by Wall St. Rank held IAMGOLD as of Q2 2026.

Based on William Blair Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.