William Blair Investment Management
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William Blair Investment Management’s Hudbay HBM Stock Holding History

William Blair Investment Management’s Portfolio HBM Stock Details HBM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$99.5M Buy
+4,215,842
New +$107M 0.3% 100
2018
Q2 		– Sell
-877,678
Closed -$6.21M – 488
2018
Q1 		$6.21M Sell
877,678
-1,462,434
-62% -$12.2M 0.02% 349
2017
Q4 		$20.8M Sell
2,340,112
-70,934
-3% -$553K 0.08% 237
2017
Q3 		$17.8M Buy
+2,411,046
New +$18.1M 0.06% 271
2017
Q2 		– Sell
-278,655
Closed -$1.83M – 458
2017
Q1 		$1.83M Buy
278,655
+50,229
+22% +$375K 0.01% 389
2016
Q4 		$1.31M Buy
+228,426
New +$1.22M 0.01% 386

Other funds holding HBM

Fidelity International
Fidelity International Hamilton, Bermuda $139B AUM 29.06% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $83.9B AUM 60.43% 1-Year Est. Return
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $100B AUM 36.93% 1-Year Est. Return
GC
GMT Capital Atlanta, Georgia $1.92B AUM 70.51% 1-Year Est. Return
HP
Hancock Prospecting West Perth, Australia $5.71B AUM 63.42% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
LC
L1 Capital Melbourne VIC 3000, Australia $2.97B AUM 43.46% 1-Year Est. Return
Bank of Montreal
Bank of Montreal Toronto, Ontario, Canada $304B AUM 35.64% 1-Year Est. Return
CIBC Asset Management
CIBC Asset Management Toronto, Ontario, Canada $45.6B AUM 44.74% 1-Year Est. Return

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

William Blair Investment Management opened a new position in Hudbay (HBM) in Q2 2026: 4,215,842 shares worth $99.5M. The stake represents 0.3% of the portfolio and ranks #100 among its holdings. This is a return to the name: William Blair Investment Management previously reported a position in HBM as recently as Q1 2018.

William Blair Investment Management first reported a position in HBM in Q4 2016 and has held it in 6 quarters since. 320 funds tracked by Wall St. Rank hold HBM as of Q2 2026.

  • William Blair Investment Management held 4,215,842 shares of Hudbay worth $99.5M as of Q2 2026.
  • Hudbay was a new William Blair Investment Management position in Q2 2026.
  • Hudbay made up 0.3% of William Blair Investment Management's portfolio in Q2 2026, its #100 holding.
  • William Blair Investment Management first reported a position in Hudbay in Q4 2016 and has held it in 6 quarters since.
  • 320 funds tracked by Wall St. Rank held Hudbay as of Q2 2026.

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