OSTERWEIS CAPITAL MANAGEMENT INC

Position in BSX — Boston Scientific Corp

CIK 1007524 SAN FRANCISCO, CA

Position in BSX

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$27,747,547

+$2,052,630 QoQ

Shares Held

442,192

+64.1% QoQ

Ownership

0.030%

of shares outstanding

% of Portfolio

1.81%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2021

19 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

OSTERWEIS CAPITAL MANAGEMENT INC holds $49,421,258 across 5 Medical Devices names. BSX ranks #1 (56.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BSX	Boston Scientific Corp This page	442,192	$27,747,547
2	GKOS	GLAUKOS Corp	94,863	$10,212,950
3	AORT	Artivion, Inc.	240,217	$8,796,746
4	PRCT	PROCEPT BioRobotics Corp	101,325	$2,534,138
5	ABT	Abbott Laboratories	1,265	$129,877

19 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$27,747,547	442,192	+64.1%	Shares	Sole	2026-05-15
2025-12-31	$25,694,917	269,480	-5.2%	Shares	Sole	2026-02-17
2025-09-30	$27,746,640	284,202	+0.4%	Shares	Sole	2025-11-14
2025-06-30	$30,419,370	283,208	+1.4%	Shares	Sole	2025-08-14
2025-03-31	$28,180,121	279,343	-15.7%	Shares	Sole	2025-06-05
2024-12-31	$29,601,719	331,412	-5.5%	Shares	Sole	2025-06-05
2024-09-30	$29,373,659	350,521	-12.0%	Shares	Sole	2024-11-14
2024-06-30	$30,676,394	398,343	-11.1%	Shares	Sole	2024-08-14
2024-03-31	$30,673,999	447,861	-14.7%	Shares	Sole	2024-05-15
2023-12-31	$30,365,568	525,265	+0.2%	Shares	Sole	2024-02-14
2023-09-30	$27,669,840	524,050	-4.1%	Shares	Sole	2023-11-14
2023-06-30	$29,558,561	546,470	-0.8%	Shares	Sole	2023-08-14
2023-03-31	$27,557,023	550,810	-15.9%	Shares	Sole	2023-05-15
2022-12-31	$30,305,230	654,965	+0.2%	Shares	Sole	2023-02-14
2022-09-30	$25,314,315	653,610	-3.8%	Shares	Sole	2022-11-14
2022-06-30	$25,331,486	679,675	+29.2%	Shares	Sole	2022-08-15
2022-03-31	$23,295,432	525,975	+0.7%	Shares	Other	2022-05-16
2021-12-31	$22,198,348	522,560	+4.1%	Shares	Other	2022-02-14
2021-09-30	$21,771,799	501,770	—	Shares	Other	2021-11-15
No filing history on record for this holder in this stock.