LOOMIS SAYLES & CO L P

Position in GKOS — GLAUKOS Corp

CIK 312348 BOSTON, MA

Position in GKOS

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$45,350,697

-$5,210,964 QoQ

Shares Held

421,240

-5.9% QoQ

Ownership

0.717%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2023

10 quarters on record

Voting authority Sole 98.08090399772101.ToString("F0")% Shared 0.ToString("F0")% None 1.919096002278986.ToString("F0")%

Healthcare · as of Mar 31, 2026

LOOMIS SAYLES & CO L P holds $142,136,158 across 12 Medical Devices names. GKOS ranks #1 (31.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GKOS	GLAUKOS Corp This page	421,240	$45,350,697
2	IRTC	iRhythm Holdings, Inc.	367,894	$43,418,849
3	AORT	Artivion, Inc.	980,439	$35,903,675
4	BRKR	Bruker Corp	456,773	$16,498,640
5	STE	STERIS plc	1,883	$416,386
6	PODD	Insulet Corp	1,243	$260,830
7	PEN	Penumbra Inc	358	$117,555
8	MDT	Medtronic plc	801	$69,406

10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
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.