Stocks/Funds/CIK 1007524

OSTERWEIS CAPITAL MANAGEMENT INC

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1007524
Assets
$1.64B
+8.0% YoY
Holdings
220
Lifetime alpha vs market
-2.25% annual
Average hold time
3.3 yr
median 2.1 yr

Quarterly history

Cum return +32% vs S&P +45% · α -13% lifetimeAUM $1.6B · peak $1.8BFlow $-72M (-4%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-4.04%
trims when stocks drop
when a holding falls −10%+
Middle response
-2.79%
baseline attrition
Rally response
-7.98%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
GOOGAlphabet Inc.$94M5.7%+84.3%10.5 yr
AMZNAmazon.com, Inc.$54M3.3%+9.5%6.0 yr
MSFTMicrosoft Corporation$54M3.3%-0.6%8.5 yr
AMATApplied Materials, Inc.$49M3.0%+137.6%7.0 yr
AVGOBroadcom Inc.$48M2.9%+86.0%3.8 yr
ADIAnalog Devices, Inc.$48M2.9%+60.2%6.3 yr
VVisa Inc.$43M2.7%-13.1%8.3 yr
AZOAutoZone, Inc.$43M2.6%-11.4%2.3 yr
JPMJPMorgan Chase & Co.$42M2.5%+21.8%5.8 yr
LLYEli Lilly and Company$41M2.5%+12.2%10.3 yr
NVDANVIDIA Corporation$40M2.4%+60.9%5.0 yr
WCNWaste Connections, Inc.$39M2.4%-16.2%8.3 yr
DHRDanaher Corporation$36M2.2%-7.1%9.0 yr
AWKAmerican Water Works Com$35M2.1%-5.4%8.5 yr
TRNOTerreno Realty Corporati$34M2.1%+0.0%1.0 yr

Portfolio composition (YoY)

Industry mix
Semiconductors13.5%+5.6pp$221M
Internet Content & Information6.7%+0.7pp$110M
Specialty Retail5.9%-1.2pp$97M
Software - Infrastructure5.7%-0.9pp$94M
Medical - Diagnostics & Research4.9%-0.2pp$81M
Drug Manufacturers - General4.8%+3.4pp$79M
Aerospace & Defense4.6%+1.6pp$75M
REIT - Industrial3.4%+0.9pp$56M
Waste Management3.1%+0.4pp$51M
Medical - Devices3.0%-1.2pp$50M
Country
US92.2%-0.5pp
CA3.0%-1.0pp
Unknown2.3%
GB1.7%-0.1pp
CH0.8%+0.1pp
HK0.1%
TW0.0%
Top 5: 18.2% · Top 10: 31.4% · Top 25: 60.5%

Winners

TickerPrev $PnLYoY %
GOOG$76M+0.06B84.3%
KEYS$31M+0.03B88.5%
NVDA$37M+0.02B60.9%
AVGO$23M+0.02B86.0%
ADI$32M+0.02B60.2%

Losers

TickerPrev $PnLYoY %
BRO$37M-0.02B-47.2%
BSX$28M-0.01B-37.8%
PGR$37M-0.01B-25.5%
WCN$41M-0.01B-16.2%
V$48M-0.01B-13.1%

Top buys this quarter · 15

ABBV AbbVie Inc.+$23M
SLB SLB N.V.+$18M
NVDA NVIDIA Corporation+$17M
BSX Boston Scientific Corporation+$11M
DOCN DigitalOcean Holdings, Inc.new+$10M
LOAR Loar Holdings Inc.new+$8M
ALHC Alignment Healthcare, Inc.new+$6M
COGT Cogent Biosciences, Inc.new+$6M
VSEC VSE Corporation+$4M
RGEN Repligen Corporation+$4M

Top sells this quarter · 15

INTU Intuit Inc.exit$19M
PSA Public Storage$18M
CRM Salesforce, Inc.$18M
AMZN Amazon.com, Inc.$16M
MOD Modine Manufacturing Company$12M
MSFT Microsoft Corporation$12M
MGY Magnolia Oil & Gas Corporationexit$10M
KEYS Keysight Technologies, Inc.$31M
GOOG Alphabet Inc.$9M
AVGO Broadcom Inc.$8M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$1.64B220+14.93%+17.59%-2.66%-0.07B
2025-12-31$1.77B272+10.05%+17.72%-7.66%-0.02B
2025-09-30$1.72B259+3.96%+17.52%-13.55%+0.00B
2025-06-30$1.63B267+4.16%+14.94%-10.78%-0.02B
2025-03-31$1.52B320-2.18%+8.30%-10.49%-0.03B
2024-12-31$1.67B178+17.07%+24.89%-7.81%+0.01B
2024-09-30$1.69B176+35.57%+36.04%-0.46%+0.06B
2024-06-30$1.55B180+22.86%+24.49%-1.63%+0.02B
2024-03-31$1.50B176+28.68%+29.62%-0.94%-0.05B
2023-12-31$1.40B181+25.65%+26.18%-0.53%+0.01B
2023-09-30$1.21B188+18.06%+21.57%-3.50%-0.07B
2023-06-30$1.35B192+18.44%+19.42%-0.98%-0.01B
2023-03-31$1.27B191-4.49%-7.82%+3.33%-0.00B
2022-12-31$1.18B214-15.73%-18.17%+2.45%-0.03B
2022-09-30$1.13B213-4.28%-4.93%+0.65%+0.03B
2022-06-30$1.14B113-13.86%-16.11%+2.25%-0.17B