GW&K Investment Management, LLC

Position in TNDM — Tandem Diabetes Care Inc

CIK 1082917 BOSTON, MA

Position in TNDM

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$51,550,161

-$7,249,789 QoQ

Shares Held

2,689,106

+0.5% QoQ

Ownership

3.92%

of shares outstanding

% of Portfolio

0.46%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2023

10 quarters on record

Voting authority Sole 91.93813854864776.ToString("F0")% Shared 8.015191665929123.ToString("F0")% None 0.04666978542311088.ToString("F0")%

Healthcare · as of Mar 31, 2026

GW&K Investment Management, LLC holds $400,658,650 across 19 Medical Devices names. TNDM ranks #2 (12.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GMED	Globus Medical Inc	1,494,723	$128,785,333
2	TNDM	Tandem Diabetes Care Inc This page	2,689,106	$51,550,161
3	BIO	Bio-Rad Laboratories, Inc.	174,708	$48,699,855
4	ITGR	Integer Holdings Corp	527,943	$46,458,984
5	STE	STERIS plc	154,999	$34,274,928
6	ABT	Abbott Laboratories	296,469	$30,438,472
7	AORT	Artivion, Inc.	738,703	$27,051,303
8	MASI	Masimo Corp	122,781	$21,839,056

10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$51,550,161	2,689,106	+0.5%	Shares	Sole	2026-05-13
2025-12-31	$58,799,950	2,675,157	-1.7%	Shares	Sole	2026-02-11
2025-09-30	$33,040,818	2,721,649	-5.8%	Shares	Sole	2025-11-12
2025-06-30	$53,872,022	2,890,130	+0.9%	Shares	Sole	2025-08-11
2025-03-31	$54,873,990	2,863,987	+34.9%	Shares	Sole	2025-05-05
2024-12-31	$76,488,037	2,123,488	+18.0%	Shares	Sole	2025-02-05
2024-09-30	$76,330,111	1,799,814	+34.0%	Shares	Sole	2024-11-07
2024-06-30	$54,113,941	1,343,111	+2.8%	Shares	Sole	2024-08-12
2024-03-31	$46,242,237	1,305,909	+6.5%	Shares	Sole	2024-05-08
2023-12-31	$36,287,501	1,226,758	—	Shares	Sole	2024-02-09
No filing history on record for this holder in this stock.