GW&K Investment Management, LLC

Position in TNDM — Tandem Diabetes Care Inc

CIK 1082917 BOSTON, MA

Position in TNDM

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$38,766,692

-$12,783,469 QoQ

Shares Held

2,569,032

-4.5% QoQ

Ownership

3.69%

of shares outstanding

% of Portfolio

0.31%

of 13F equity value

Holder Rank

of 274 holders

Holding Since

Dec 2023

11 quarters on record

Voting authority Sole 92% Shared 8% None 0%

Healthcare · as of Jun 30, 2026

GW&K Investment Management, LLC holds $330,625,713 across 18 Medical Devices names. TNDM ranks #4 (11.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GMED	Globus Medical Inc	1,453,206	$114,817,805
2	BIO	Bio-Rad Laboratories, Inc.	166,905	$49,004,976
3	ITGR	Integer Holdings Corp	497,676	$46,507,821
4	TNDM	Tandem Diabetes Care Inc This page	2,569,032	$38,766,692
5	ABT	Abbott Laboratories	285,193	$25,878,412
6	UFPT	Ufp Technologies Inc	88,417	$23,441,999
7	AORT	Artivion, Inc.	794,478	$17,851,919
8	STE	STERIS plc	66,241	$13,948,367

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$38,766,692	2,569,032	-4.5%	Shares	Sole	2026-08-12
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.