WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

Position in COHR — Coherent Corp.

CIK 1644956 CHICAGO, IL

Back to COHR Full portfolio

Position in COHR

as of Mar 31, 2026 · filed May 8, 2026 Compact

Position Value

$159,156,914

-$1,983,770 QoQ

Shares Held

668,137

-23.5% QoQ

Ownership

0.342%

of shares outstanding

% of Portfolio

0.53%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2025

4 quarters on record

Voting authority Sole 95.92284217159056.ToString("F0")% Shared 0.ToString("F0")% None 4.077157828409443.ToString("F0")%

Common Shares in COHR Over Time

Shares Held

Position Value (USD)

Position in Scientific & Technical Instruments

Technology · as of Mar 31, 2026

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds $305,410,220 across 4 Scientific & Technical Instruments names. COHR ranks #1 (52.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	COHR	Coherent Corp. This page	668,137	$159,156,914
2	NOVT	Novanta Inc	783,084	$92,490,051
3	CGNX	Cognex Corp	1,016,463	$49,796,522
4	KEYS	Keysight Technologies, Inc.	14,048	$3,966,733

All Filings in COHR

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4 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$159,156,914	668,137	-23.5%	Shares	Sole	2026-05-08
2025-12-31	$161,140,684	873,060	-36.0%	Shares	Sole	2026-02-09
2025-09-30	$147,039,631	1,365,017	+225.7%	Shares	Sole	2025-11-12
2025-06-30	$37,393,620	419,164	—	Shares	Sole	2025-07-29
No filing history on record for this holder in this stock.