William Blair Investment Management
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William Blair Investment Management’s Coherent COHR Stock Holding History

William Blair Investment Management’s Portfolio COHR Stock Details COHR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$159M Sell
668,137
-204,923
-23% -$46.9M 0.53% 48
2025
Q4 		$161M Sell
873,060
-491,957
-36% -$73.6M 0.45% 53
2025
Q3 		$147M Buy
1,365,017
+945,853
+226% +$94.3M 0.38% 72
2025
Q2 		$37.4M Buy
+419,164
New +$30.2M 0.1% 160

Other funds holding COHR

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
NC
Nvidia Corp Santa Clara, California $18.4B AUM 362.26% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
WAM
WT Asset Management Hong Kong $4.77B AUM 334.05% 1-Year Est. Return

William Blair Investment Management's COHR Position: Q1 2026 in Review

William Blair Investment Management reduced its Coherent (COHR) stake by 23% in Q1 2026, selling an estimated $46.9M and leaving 668,137 shares worth $159M. The position accounts for 0.53% of the portfolio, ranked #48.

William Blair Investment Management first reported a position in COHR in Q2 2025 and has held it in 4 quarters since. The position peaked at $161M in Q4 2025. 1,101 funds tracked by Wall St. Rank hold COHR as of Q1 2026.

  • William Blair Investment Management held 668,137 shares of Coherent worth $159M as of Q1 2026.
  • William Blair Investment Management sold 204,923 Coherent shares in Q1 2026, an estimated $46.9M.
  • Coherent made up 0.53% of William Blair Investment Management's portfolio in Q1 2026, its #48 holding.
  • William Blair Investment Management first reported a position in Coherent in Q2 2025 and has held it in 4 quarters since.
  • William Blair Investment Management's Coherent position peaked at $161M in Q4 2025.
  • 1,101 funds tracked by Wall St. Rank held Coherent as of Q1 2026.

Based on William Blair Investment Management's 13F filing for Q1 2026, filed 8 May 2026.