OSTERWEIS CAPITAL MANAGEMENT INC

CIK

1007524

Location

SAN FRANCISCO, CA

Portfolio Value

Mid $1,534,024,365

Diversification

Diversified

Filing Date

Global Rank

#1,152 / 8,232 ▲ 47

Top Industry

Semiconductors 11.2%

3Y Alpha vs SPY

-8.8%

Period ended 2 months ago

Filed May 15, 2026 · 30d

25 quarters · since Mar 2020

Clone Performance

Jun 2023–Jun 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+40.5%

SPY

+76.3%

Annualised alpha

-8.8%

Max drawdown

−21.2%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

201 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

3.5%

−1.7 pts

Top 5

16.4%

−3.2 pts

Top 10

30.0%

−2.4 pts

HHI

187

Diversified−15

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	26.7%	$409,617,271	46
Industrials	17.5%	$268,154,333	37
Healthcare	17.2%	$263,377,684	30
Financial Services	12.9%	$197,844,923	30
Consumer Cyclical	10.0%	$152,723,701	15
Real Estate	5.9%	$91,161,371	8
Consumer Defensive	2.7%	$41,474,853	8
Utilities	2.3%	$35,018,492	3
Basic Materials	2.2%	$33,595,330	7
Energy	1.6%	$24,674,414	7
Communication Services	1.0%	$16,073,142	6
Unclassified	0.0%	$308,851	4

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
BSX	Boston Scientific Corp	+172,712	442,192	$27,747,547
ATRC	AtriCure, Inc.	+146,070	349,645	$9,975,371
ABBV	AbbVie Inc.	+103,727	107,478	$23,375,389
NVDA	Nvidia Corp	+96,172	228,679	$39,881,617
CDNL	Cardinal Infrastructure Group Inc.	+93,711	169,936	$6,738,812
VCEL	Vericel Corp	+78,070	401,045	$12,901,617
HNGE	Hinge Health, Inc.	+38,010	210,270	$8,108,011
RGEN	Repligen Corp	+37,585	92,220	$10,865,360
LTH	Life Time Group Holdings, Inc.	+36,895	519,560	$13,996,946
NXT	Nextpower Inc.	+34,085	82,335	$9,925,484
VSEC	Vse Corp	+24,164	72,624	$13,391,865
AX	Axos Financial, Inc.	+21,055	163,740	$13,932,636
AORT	Artivion, Inc.	+19,490	240,217	$8,796,746
AFRM	Affirm Holdings, Inc.	+14,551	60,760	$2,784,023
GH	Guardant Health, Inc.	+13,010	148,946	$13,758,142
TWLO	Twilio Inc	+10,715	65,930	$8,295,312
PLMR	Palomar Holdings, Inc.	+10,580	68,090	$8,136,755
WDAY	Workday, Inc.	+6,743	12,743	$1,655,570
NOVT	Novanta Inc	+5,355	107,050	$12,643,675
WCN	Waste Connections, Inc.	+3,097	240,762	$39,109,378
CECO	Ceco Environmental Corp	+2,935	226,617	$13,501,840
DHR	Danaher Corp /De/	+2,856	190,961	$36,206,204
V	Visa Inc.	+2,659	143,901	$43,492,637
JPM	Jpmorgan Chase & Co	+2,458	141,453	$41,609,813
ICE	Intercontinental Exchange, Inc.	+2,345	176,898	$27,822,517
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
CHYM	Chime Financial, Inc.	−217,300	205,050	$3,840,586
PRCT	PROCEPT BioRobotics Corp	−136,155	101,325	$2,534,138
CRM	Salesforce, Inc.	−97,246	502	$93,708
AMZN	Amazon Com Inc	−77,268	259,065	$53,955,466
TTAN	ServiceTitan, Inc.	−57,575	59,480	$3,774,600
MOD	Modine Manufacturing Co	−54,998	34,224	$7,416,683
LSCC	Lattice Semiconductor Corp	−54,655	105,910	$9,824,211
LAMR	Lamar Advertising Co/New	−54,562	201,236	$25,488,551
AWK	American Water Works Company, Inc.	−46,663	256,432	$34,897,830
TWST	Twist Bioscience Corp	−45,720	211,158	$10,034,228
SIMO	Silicon Motion Technology CORP	−37,675	18,660	$2,095,331
FSV	FirstService Corp	−37,470	64,884	$9,014,982
USFD	US Foods Holding Corp.	−37,453	354,083	$32,649,993
KEYS	Keysight Technologies, Inc.	−34,970	115,393	$32,583,520
MSFT	Microsoft Corp	−31,958	144,666	$53,551,012
APD	Air Products & Chemicals, Inc.	−28,862	114,446	$33,245,417
BRO	Brown & Brown, Inc.	−28,435	397,311	$25,908,649
AVGO	Broadcom Inc.	−27,022	155,094	$48,003,143
AME	Ametek Inc/	−26,311	116,894	$25,057,396
TPB	Turning Point Brands, Inc.	−25,680	58,875	$5,109,761
MTSI	MACOM Technology Solutions Holdings, Inc.	−24,427	36,543	$8,115,104
TRNO	Terreno Realty Corp	−19,674	555,710	$34,131,707
LHX	L3harris Technologies, Inc. /De/	−19,202	89,868	$31,017,939
CWST	Casella Waste Systems Inc	−12,465	148,270	$11,763,741
AMAT	Applied Materials Inc /De	−10,745	142,132	$48,579,295
No positions match the current search.

New Positions

Positions the filer opened this quarter

13 positions

Ticker	Company	Shares	Value
PSA	Public Storage	78,807	$21,347,239
SLB	Slb Limited/Nv	373,334	$19,185,634
DOCN	DigitalOcean Holdings, Inc.	115,965	$9,947,477
BOOT	Boot Barn Holdings, Inc.	58,680	$8,588,404
LOAR	Loar Holdings Inc.	138,370	$7,927,217
TRNS	Transcat Inc	100,462	$7,378,933
ALHC	Alignment Healthcare, Inc.	346,985	$6,113,875
COGT	Cogent Biosciences, Inc.	150,810	$5,804,676
FSLY	Fastly, Inc.	125,495	$3,646,884
CLX	Clorox Co /De/	4,411	$457,111
RJF	Raymond James Financial Inc	560	$81,082
ELS	Equity Lifestyle Properties Inc	1,008	$62,919
CSGP	Costar Group, Inc.	326	$13,150
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
INTU	Intuit Inc.	43,190	$28,609,919
VITL	Vital Farms, Inc.	335,630	$10,720,022
HURN	Huron Consulting Group Inc.	48,660	$8,413,800
WAY	Waystar Holding Corp.	253,275	$8,294,756
GWRE	Guidewire Software, Inc.	37,644	$7,566,820
MGY	Magnolia Oil & Gas Corp	325,647	$7,128,412
AGYS	Agilysys Inc	39,420	$4,684,672
AMPX	Amprius Technologies, Inc.	454,830	$3,588,608
BRZE	Braze, Inc.	69,305	$2,376,468
LEVI	Levi Strauss & Co	25,000	$518,500
SO	Southern Co	1,981	$172,743
DUK	Duke Energy CORP	1,395	$163,507
T	At&T Inc.	6,234	$154,852
CI	Cigna Group	432	$118,899
MKL	Markel Group Inc.	53	$113,931
KKR	KKR & Co. Inc.	872	$111,162
MCD	Mcdonalds Corp	314	$95,967
TKO	TKO Group Holdings, Inc.	327	$68,343
KO	Coca Cola Co	872	$60,961
LOW	Lowes Companies Inc	236	$56,913
AJG	Arthur J. Gallagher & Co.	197	$50,981
CASY	Caseys General Stores Inc	88	$48,638
BAC	Bank Of America Corp /De/	878	$48,290
ADP	Automatic Data Processing Inc	185	$47,587
PODD	Insulet Corp	163	$46,331
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

201 positions · $1,534,024,365 total · as of Mar 31, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 201 positions by value · page 1 of 5

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
AMZN	Amazon Com Inc Consumer Cyclical	Reduced	259,065	-77,268	$53,955,466	−30.5%	3.52%
MSFT	Microsoft Corp Technology	Reduced	144,666	-31,958	$53,551,012	−37.3%	3.49%
AMAT	Applied Materials Inc /De Technology	Reduced	142,132	-10,745	$48,579,295	+23.6%	3.17%
AVGO	Broadcom Inc. Technology	Reduced	155,094	-27,022	$48,003,143	−23.8%	3.13%
ADI	Analog Devices Inc Technology	Reduced	150,259	-1,677	$47,803,397	+16.0%	3.12%
V	Visa Inc. Financial Services	Added	143,901	+2,659	$43,492,637	−12.2%	2.84%
AZO	Autozone Inc Consumer Cyclical	Added	12,601	+1,274	$42,563,405	+10.8%	2.77%
JPM	Jpmorgan Chase & Co Financial Services	Added	141,453	+2,458	$41,609,813	−7.1%	2.71%
LLY	ELI LILLY & Co Healthcare	Added	44,788	+10	$41,194,658	−14.4%	2.69%
NVDA	Nvidia Corp Technology	Added	228,679	+96,172	$39,881,617	+61.4%	2.60%
WCN	Waste Connections, Inc. Industrials	Added	240,762	+3,097	$39,109,378	−6.2%	2.55%
DHR	Danaher Corp /De/ Healthcare	Added	190,961	+2,856	$36,206,204	−15.9%	2.36%
AWK	American Water Works Company, Inc. Utilities	Reduced	256,432	-46,663	$34,897,830	−11.8%	2.27%
TRNO	Terreno Realty Corp Real Estate	Reduced	555,710	-19,674	$34,131,707	+1.0%	2.22%
APD	Air Products & Chemicals, Inc. Basic Materials	Reduced	114,446	-28,862	$33,245,417	−6.1%	2.17%
USFD	US Foods Holding Corp. Consumer Defensive	Reduced	354,083	-37,453	$32,649,993	+10.7%	2.13%
KEYS	Keysight Technologies, Inc. Technology	Reduced	115,393	-34,970	$32,583,520	+6.6%	2.12%
LHX	L3harris Technologies, Inc. /De/ Industrials	Reduced	89,868	-19,202	$31,017,939	−3.1%	2.02%
PGR	Progressive Corp/Oh/ Financial Services	Reduced	144,766	-6,512	$28,698,411	−16.7%	1.87%
ICE	Intercontinental Exchange, Inc. Financial Services	Added	176,898	+2,345	$27,822,517	−1.6%	1.81%
BSX	Boston Scientific Corp Healthcare	Added	442,192	+172,712	$27,747,547	+8.0%	1.81%
FERG	Ferguson Enterprises Inc. /DE/ Industrials	Reduced	117,703	-1,555	$27,455,401	+3.4%	1.79%
BRO	Brown & Brown, Inc. Financial Services	Reduced	397,311	-28,435	$25,908,649	−23.6%	1.69%
LAMR	Lamar Advertising Co/New Real Estate	Reduced	201,236	-54,562	$25,488,551	−21.3%	1.66%
CP	Canadian Pacific Kansas City Ltd/Cn Industrials	Reduced	322,243	-1,376	$25,347,634	+6.4%	1.65%
AME	Ametek Inc/ Industrials	Reduced	116,894	-26,311	$25,057,396	−14.8%	1.63%
DE	Deere & Co Industrials	Reduced	43,491	-43	$24,498,479	+20.9%	1.60%
ABBV	AbbVie Inc. Healthcare	Added	107,478	+103,727	$23,375,389	+2627.4%	1.52%
BA	Boeing Co Industrials	Added	109,106	+405	$21,715,366	−8.0%	1.42%
PSA	Public Storage Real Estate	NEW	78,807	NEW	$21,347,239	NEW	1.39%
LH	Labcorp Holdings Inc. Healthcare	Added	76,983	+920	$20,539,833	+7.6%	1.34%
SLB	Slb Limited/Nv Energy	NEW	373,334	NEW	$19,185,634	NEW	1.25%
NVR	Nvr Inc Consumer Cyclical	Added	2,725	+100	$17,957,286	−6.2%	1.17%
SNPS	Synopsys Inc Technology	Added	44,034	+783	$17,458,599	−14.1%	1.14%
META	Meta Platforms, Inc. Communication Services	Reduced	25,052	-195	$14,333,000	−14.0%	0.93%
LTH	Life Time Group Holdings, Inc. Consumer Cyclical	Added	519,560	+36,895	$13,996,946	+9.1%	0.91%
AX	Axos Financial, Inc. Financial Services	Added	163,740	+21,055	$13,932,636	+13.3%	0.91%
GH	Guardant Health, Inc. Healthcare	Added	148,946	+13,010	$13,758,142	−0.9%	0.90%
CECO	Ceco Environmental Corp Industrials	Added	226,617	+2,935	$13,501,840	+0.9%	0.88%
VSEC	Vse Corp Industrials	Added	72,624	+24,164	$13,391,865	+60.0%	0.87%
VCEL	Vericel Corp Healthcare	Added	401,045	+78,070	$12,901,617	+10.9%	0.84%
NVS	Novartis AG Healthcare	Reduced	83,792	-3,891	$12,799,227	+5.9%	0.83%
NOVT	Novanta Inc Technology	Added	107,050	+5,355	$12,643,675	+4.5%	0.82%
CPAY	Corpay, Inc. Technology	Reduced	41,867	-1,555	$12,182,878	−6.8%	0.79%
CWST	Casella Waste Systems Inc Industrials	Reduced	148,270	-12,465	$11,763,741	−25.3%	0.77%
AAPL	Apple Inc. Technology	Reduced	45,576	-212	$11,566,732	−7.1%	0.75%
RGEN	Repligen Corp Healthcare	Added	92,220	+37,585	$10,865,360	+21.4%	0.71%
GKOS	GLAUKOS Corp Healthcare	Reduced	94,863	-6,750	$10,212,950	−11.0%	0.67%
TWST	Twist Bioscience Corp Healthcare	Reduced	211,158	-45,720	$10,034,228	+23.1%	0.65%
ATRC	AtriCure, Inc. Healthcare	Added	349,645	+146,070	$9,975,371	+23.9%	0.65%