LOOMIS SAYLES & CO L P

Position in GKOS — GLAUKOS Corp

CIK 312348 BOSTON, MA

Position in GKOS

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$65,601,665

+$20,250,968 QoQ

Shares Held

469,388

+11.4% QoQ

Ownership

0.796%

of shares outstanding

% of Portfolio

0.08%

of 13F equity value

Holder Rank

#31

of 364 holders

Holding Since

Dec 2023

11 quarters on record

Voting authority Sole 98% Shared 0% None 2%

Healthcare · as of Jun 30, 2026

LOOMIS SAYLES & CO L P holds $110,481,292 across 7 Medical Devices names. GKOS ranks #1 (59.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GKOS	GLAUKOS Corp This page	469,388	$65,601,665
2	IRTC	iRhythm Holdings, Inc.	347,959	$41,389,722
3	BRKR	Bruker Corp	54,702	$3,291,966
4	ABT	Abbott Laboratories	1,506	$136,654
5	ZBH	Zimmer Biomet Holdings, Inc.	372	$32,025
6	MDT	Medtronic plc	200	$15,646
7	BSX	Boston Scientific Corp	319	$13,614

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$65,601,665	469,388	+11.4%	Shares	Defined	2026-08-14
2026-03-31	$45,350,697	421,240	-5.9%	Shares	Defined	2026-05-14
2025-12-31	$50,561,661	447,805	+0.1%	Shares	Defined	2026-02-12
2025-09-30	$36,487,834	447,429	-24.6%	Shares	Defined	2025-11-13
2025-06-30	$61,314,182	593,612	-7.3%	Shares	Defined	2025-08-13
2025-03-31	$63,003,562	640,150	-2.1%	Shares	Defined	2025-05-14
2024-12-31	$98,071,555	654,072	-2.9%	Shares	Defined	2025-02-12
2024-09-30	$87,776,279	673,751	+21.6%	Shares	Defined	2024-11-13
2024-06-30	$65,592,410	554,224	+30.5%	Shares	Defined	2024-08-13
2024-03-31	$40,047,225	424,724	-2.6%	Shares	Defined	2024-05-14
2023-12-31	$34,678,068	436,257	—	Shares	Defined	2024-02-13
No filing history on record for this holder in this stock.