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13F-HR filed by OSTERWEIS CAPITAL MANAGEMENT INC

OSTERWEIS CAPITAL MANAGEMENT INC filed this 13F-HR for the quarter ended 2026-03-31, filed 2026-05-15, with 229 holding rows worth $1,938,865,854.

Accession
0001007524-26-000002
Filed
2026-05-15
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q1 2026

A holdings report, 277 entries on the cover page, a total value of $1,938,865,854 stated on the cover page (in dollars after the unit check, H1), rows summing to $1,938,865,854 with VALUE read as dollars as filed, 13F file number 028-04483. The quarter's positions are built on this report. The resolved quarter.

Other managers

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
Alphabet Inc. Reg. Shares C02079K107COM327,158$93,848,544dollars as filed
AFFIRM HLDGS INC00827BAB2NOTE 11/157,500,000$55,775,000dollars as filedprincipal
Amazon.com, Inc023135106COM259,065$53,955,468dollars as filed
Microsoft Corp594918104COM144,666$53,551,013dollars as filed
Applied Materials,Inc.038222105COM142,132$48,579,296dollars as filed
MARRIOTT VACATIONS WORLDWIDE57164YAF4NOTE 3.250%12/150,000,000$48,125,000dollars as filedprincipal
Broadcom Inc.11135F101COM155,094$48,003,144dollars as filed
Analog Devices,Inc.032654105COM150,259$47,803,398dollars as filed
Visa Inc92826C839COM143,901$43,492,639dollars as filed
AUTOZONE INC COM053332102Stock12,601$42,563,405dollars as filed
JPMorgan Chase & Co46625H100COM141,453$41,609,814dollars as filed
JBT MAREL CORPORATION477839AB0NOTE 0.250% 5/141,279,000$41,206,762dollars as filedprincipal
Eli Lilly and Company532457108COM44,788$41,194,659dollars as filed
NVIDIA Corp67066G104COM228,679$39,881,618dollars as filed
WASTE CONNECTIONS INC COM94106B101Stock240,762$39,109,380dollars as filed
Danaher Corporation235851102COM190,961$36,206,206dollars as filed
PENN ENTERTAINMENT INC707569AU3NOTE 2.750% 5/135,453,000$35,461,863dollars as filedprincipal
Q2 HLDGS INC74736LAD1NOTE 0.750% 6/035,428,000$35,282,720dollars as filedprincipal
AMERICAN WTR WKS CO INC NEW COM030420103Stock256,432$34,897,831dollars as filed
TERRENO RLTY CORP88146M101COM555,710$34,131,708dollars as filed
AIR PRODS & CHEMS INC009158106COM114,446$33,245,419dollars as filed
PEBBLEBROOK HOTEL TR70509VAA8NOTE 1.750%12/133,871,000$33,075,822dollars as filedprincipal
US FOODS HLDG CORP COM912008109Stock354,083$32,649,993dollars as filed
KEYSIGHT TECHNOLOGIES INC COM49338L103Stock115,393$32,583,522dollars as filed
L3HARRIS TECHNOLOGIES INC COM502431109Stock89,868$31,017,940dollars as filed
ZIFF DAVIS INC48123VAE2NOTE 1.75% 11/01/202630,595,000$30,059,588dollars as filedprincipal
Progressive Corporation743315103COM144,766$28,698,412dollars as filed
Intercontinental Exchange,Inc.45866F104COM176,898$27,822,517dollars as filed
Boston Scientific Corporation101137107COM442,192$27,747,548dollars as filed
FERGUSON ENTERPRISES INC COMMON STOCK NEW31488V107Stock117,703$27,455,401dollars as filed
BROWN & BROWN INC COM115236101Stock397,311$25,908,651dollars as filed
LAMAR ADVERTISING CO CL A512816109REIT201,236$25,488,552dollars as filed
CANADIAN PACIFIC KANSAS CITY COM13646K108Stock322,243$25,347,634dollars as filed
AMETEK INC COM031100100Stock116,894$25,057,398dollars as filed
Deere & Company244199105COM43,491$24,498,480dollars as filed
AbbVie,Inc.00287Y109COM107,478$23,375,391dollars as filed
Boeing Company097023105COM109,106$21,715,368dollars as filed
PUBLIC STORAGE COM74460D109REIT78,807$21,347,240dollars as filed
LABCORP HOLDINGS INC COM SHS504922105Stock76,983$20,539,834dollars as filed
Schlumberger Limited806857108COM373,334$19,185,634dollars as filed
NVR INC COM62944T105Stock2,725$17,957,287dollars as filed
SYNOPSYS INC COM871607107Stock44,034$17,458,601dollars as filed
UPWORK INC91688FAB0NOTE 0.250% 8/114,680,000$14,404,750dollars as filedprincipal
META PLATFORMS INC CL A30303M102COM25,052$14,333,001dollars as filed
LIFE TIME GROUP HOLDINGS INC COMMON STOCK53190C102Stock519,560$13,996,946dollars as filed
AXOSFINLINC05465C100STOK163,740$13,932,637dollars as filed
GUARDANT HEALTH INC COM40131M109Stock148,946$13,758,142dollars as filed
CECO ENVIRONMENTAL CORP125141101COM226,617$13,501,841dollars as filed
VSE CORP COM918284100Stock72,624$13,391,866dollars as filed
VERICEL CORP92346J108COM401,045$12,901,618dollars as filed
NOVARTIS AG SPONSORED ADR66987V109ADR83,792$12,799,228dollars as filedprincipal
NOVANTA INC67000B104COM107,050$12,643,676dollars as filed
CORPAY INC COM SHS219948106Stock41,867$12,182,878dollars as filed
CASELLA WASTE SYS INC147448104CL A148,270$11,763,742dollars as filed
Apple Inc037833100COM45,576$11,566,695dollars as filed
REPLIGEN CORP COM759916109Stock92,220$10,865,360dollars as filed
GLAUKOS CORP COM377322102Stock94,863$10,212,951dollars as filed
TWIST BIOSCIENCE CORP90184D100COM211,158$10,034,228dollars as filed
ATRICURE INC04963C209COM349,645$9,975,372dollars as filed
DIGITALOCEAN HLDGS INC COM25402D102Stock115,965$9,947,478dollars as filed
NEXTPOWER INC CLASS A COM65290E101Stock82,335$9,925,484dollars as filed
LATTICE SEMICONDUCTOR CORP COM518415104Stock105,910$9,824,212dollars as filed
SPX TECHNOLOGIES INC78473E103COM48,982$9,793,461dollars as filed
FIRSTSERVICE CORP NEW COM33767E202Stock64,884$9,014,983dollars as filed
ARTIVION INC228903100COM240,217$8,796,747dollars as filed
SITIME CORP COM82982T106Stock25,137$8,681,063dollars as filed
BOOT BARN HLDGS INC099406100COM58,680$8,588,405dollars as filed
TWILIO INC CL A90138F102Stock65,930$8,295,313dollars as filed
PALOMAR HLDGS INC COM69753M105Stock68,090$8,136,755dollars as filed
MACOM TECH SOLUTIONS HLDGS INC COM55405Y100Stock36,543$8,115,104dollars as filed
HINGE HEALTH INC A433313103COMMON STOCK210,270$8,108,011dollars as filed
LOAR HOLDINGS INC COM SHS53947R105Stock138,370$7,927,217dollars as filed
MODINE MFG CO COM607828100Stock34,224$7,416,683dollars as filed
TRANSCAT INC893529107COM100,462$7,378,934dollars as filed
RAMBUS INC DEL COM750917106Stock84,930$7,306,528dollars as filed
ETSY INC29786AAN6NOTE 0.250% 6/17,750,000$6,939,350dollars as filedprincipal
CAVAGROUPINC148929102STOK83,695$6,770,926dollars as filed
CARDINAL INFRASTRUCTURE GR A14154A102COMMON STOCK169,936$6,738,812dollars as filed
ALIGNMENT HEALTHCARE INC COM01625V104Stock346,985$6,113,876dollars as filed
COGENT BIOSCIENCES INC19240Q201COM150,810$5,804,677dollars as filed
TURNING PT BRANDS INC COM90041L105Stock58,875$5,109,761dollars as filed
CHIME FINL INC COM SHS CL A16935C109Stock205,050$3,840,587dollars as filed
SERVICETITAN INC SHS CL A81764X103Stock59,480$3,774,601dollars as filed
FASTLY INC31188V100CL A125,495$3,646,885dollars as filed
BERKSHIRE HATHAWAY INC DEL084670108CL A5$3,590,700dollars as filed
AUTODESK INC COM052769106Stock14,000$3,351,600dollars as filed
ENTERPRISE PRODS PARTNERS L293792107COM87,815$3,322,920dollars as filed
AFFIRM HLDGS INC COM CL A00827B106Stock60,760$2,784,023dollars as filed
PROCEPT BIOROBOTICS CORP COM74276L105Stock101,325$2,534,138dollars as filed
Berkshire Hathaway Inc084670702COM5,284$2,532,093dollars as filed
Procter & Gamble Co742718109COM16,118$2,328,084dollars as filed
SILICON MOTION TECHNOLOGY CORP SPONSORED ADR82706C108ADR18,660$2,095,331dollars as filedprincipal
EXXON MOBIL CORP30231G102COM10,797$1,831,818dollars as filed
WORKDAY INC CL A98138H101Stock12,743$1,655,571dollars as filed
Schwab U.S. Broad Market ETF808524102SHS57,722$1,448,822dollars as filedprincipal
Alphabet Inc. Reg. Shares A02079K305COM4,978$1,431,474dollars as filed
FAIR ISAAC CORP COM303250104Stock1,292$1,379,262dollars as filed
Palantir Technologies Inc. Class A69608A108COM9,202$1,346,069dollars as filed
Johnson & Johnson478160104COM4,431$1,083,113dollars as filed
Vanguard S&P 500 ETF922908363COM1,738$1,038,467dollars as filedprincipal
Union Pacific Corporation907818108COM4,003$971,208dollars as filed
ESSEX PPTY TR INC COM297178105REIT4,000$968,000dollars as filed
Technology Select Sector SPDR Fund81369Y803SHS5,182$688,688dollars as filedprincipal
FIRST TR EXCHANGE TRAD FD VI33739H101FST TR GLB FD23,878$685,550dollars as filedprincipal
iShares Core MSCI EAFE ETF46432F842SHS6,240$564,907dollars as filedprincipal
Merck & Co.,Inc.58933Y105COM4,183$503,173dollars as filed
PIMCO ETF TR72201R7830-5 HIGH YIELD5,370$500,860dollars as filedprincipal
VANGUARD STAR FDS921909768COM6,047$466,304dollars as filedprincipal
American Express Company025816109COM1,515$458,257dollars as filed
CLOROX CO DEL189054109COM4,411$457,112dollars as filed
Costco Wholesale Corporation22160K105COM455$453,376dollars as filed
ISHARES TR46432F859CORE 1 5 YR USD9,000$436,140dollars as filedprincipal
BERKLEY W R CORP COM084423102Stock6,331$419,619dollars as filed
Home Depot, Inc437076102COM1,178$387,433dollars as filed
Tesla Motors, Inc88160R101COM1,034$384,390dollars as filed
Walmart Inc.931142103COM3,072$381,788dollars as filed
Morgan Stanley617446448COM2,278$374,890dollars as filed
Wells Fargo & Company949746101COM4,307$342,880dollars as filed
KLA CORP482480100COM218$320,985dollars as filed
Raytheon Technologies Corporation75513E101COM1,625$313,462dollars as filed
SPDR Bloomberg 1-3 Month T-Bill ETF78468R663SHS3,365$308,369dollars as filedprincipal
Oracle Corporation68389X105COM1,845$271,418dollars as filed
Cisco Systems,Inc.17275R102COM3,067$237,969dollars as filed
CRANE COMPANY COMMON STOCK224408104Stock1,325$226,575dollars as filed
iShares Expanded Tech Sector ETF464287549SHS1,889$223,917dollars as filedprincipal
Airbnb, Inc. Class A009066101COM1,715$216,570dollars as filed
GENERAL DYNAMICS CORP COM369550108Stock594$203,873dollars as filed
MCKESSON CORP COM58155Q103Stock226$195,571dollars as filed
PNC FINL SVCS GROUP INC COM693475105Stock914$190,194dollars as filed
SPDR GOLD TR78463V107GOLD SHS427$183,734dollars as filedprincipal
VANGUARD S&P SMALL-CAP 600 ETF921932828ETF1,542$177,088dollars as filedprincipal
TJX Companies Inc872540109COM1,104$176,309dollars as filed
Lam Research Corporation512807306COM796$170,073dollars as filed
Intuitive Surgical,Inc.46120E602COM368$169,644dollars as filed
PARKER-HANNIFIN CORP COM701094104Stock187$167,410dollars as filed
NORFOLK SOUTHN CORP COM655844108Stock582$167,034dollars as filed
Vanguard Short-Term Treasury ETF92206C102SHS2,852$166,956dollars as filedprincipal
QUANTA SVCS INC74762E102COM300$164,706dollars as filed
TAIWAN SEMICONDUCTOR MFG874039100SPONSORED ADS473$159,851dollars as filedprincipal
Walt Disney Co254687106COM1,600$154,208dollars as filed
Citigroup Inc.172967424COM1,314$149,021dollars as filed
VERTIV HOLDINGS CO COM CL A92537N108Stock579$145,086dollars as filed
BANK OF NY MELLON CORP COM064058100Stock1,199$142,237dollars as filed
OREILLY AUTOMOTIVE INC COM67103H107Stock1,515$139,850dollars as filed
Vanguard Extended Market ETF922908652SHS673$138,465dollars as filedprincipal
Prologis,Inc.74340W103COM1,020$134,824dollars as filed
Abbott Laboratories002824100COM1,265$129,878dollars as filed
Netflix, Inc64110L106COM1,300$124,995dollars as filed
Chevron Corporation166764100COM598$123,726dollars as filed
AGNICO EAGLE MINES LTD COM008474108Stock591$119,961dollars as filed
FASTENAL CO COM311900104Stock2,553$118,459dollars as filed
OLD DOMINION FREIGHT LINE INC COM679580100Stock606$118,412dollars as filed
RBC BEARINGS INC COM75524B104Stock212$115,141dollars as filed
CROWDSTRIKE HLDGS INC22788C105COM286$111,657dollars as filed
Booking Holdings Inc.09857L108COM25$105,258dollars as filed
NEXTNAV INC65345N106COMMON STOCK6,533$104,659dollars as filed
S&P Global,Inc.78409V104COM244$103,783dollars as filed
EMCOR GROUP INC COM29084Q100Stock136$100,410dollars as filed
Uber Technologies90353T100COM1,329$95,595dollars as filed
SUMMIT THERAPEUTICS INC86627T108COM5,000$94,800dollars as filed
HEICO CORP NEW COM422806109Stock344$94,325dollars as filed
Salesforce.com, Inc79466L302COM502$93,708dollars as filed
Marsh & McLennan Companies,Inc.571748102COM513$88,980dollars as filed
HA SUSTAINABLE INFRA CAP INC41068X100COM2,390$87,833dollars as filed
International Business Machines Corporation459200101COM354$85,806dollars as filed
VALERO ENERGY CORP COM91913Y100Stock341$84,254dollars as filed
QXO INC COM NEW82846H405Stock4,245$82,438dollars as filed
NORTHROP GRUMMAN CORP COM666807102Stock119$81,187dollars as filed
LYFT INC55087P104CL A COM6,099$81,117dollars as filed
RAYMOND JAMES FINL INC COM754730109Stock560$81,082dollars as filed
ALLIANCEBERNSTEIN HLDG L P01881G106UNIT LTD PARTN2,124$79,523dollars as filed
IShares Bitcoin Trust Registered46438F101SHS2,017$77,494dollars as filedprincipal
CME Group Inc. Class A12572Q105COM258$76,200dollars as filed
MSCI INC COM55354G100Stock137$73,844dollars as filed
PERPETUA RESOURCES CORP714266103COM2,622$73,731dollars as filed
ENTERGY CORP NEW COM29364G103Stock626$70,337dollars as filed
ConocoPhillips20825C104COM511$67,452dollars as filed
ISHARES TR CORE S&P 500 ETF464287200SHS100$65,321dollars as filedprincipal
KRANESHARES TRUST CSI CHI INTERNET500767306CSI CHI INTERNET2,291$65,133dollars as filedprincipal
Caterpillar Inc.149123101COM91$64,470dollars as filed
Micron Technology,Inc.595112103COM190$64,190dollars as filed
EQUITY LIFESTYLE PROPERTIES COM29472R108REIT1,008$62,919dollars as filed
Vanguard Growth922908736COM143$62,637dollars as filedprincipal
PRIMORIS SVCS CORP COM74164F103Stock431$61,650dollars as filed
NEW FOUND GOLD CORP64440N103COM31,250$60,625dollars as filed
BlackRock,Inc.09290D101COM62$59,626dollars as filed
Philip Morris International Inc.718172109COM357$59,026dollars as filed
EQT CORP COM26884L109Stock921$58,612dollars as filed
ESCO TECHNOLOGIES INC296315104COM205$57,681dollars as filed
SHOPIFY INC82509L107CL A SUB VTG SHS463$54,921dollars as filed
ServiceNow,Inc.81762P102COM525$54,889dollars as filed
CUMMINS INC COM231021106Stock95$51,112dollars as filed
INGERSOLL RAND INC COM45687V106Stock631$50,556dollars as filed
IDACORP INC451107106COM352$50,325dollars as filed
HOWMET AEROSPACE INC COM443201108Stock208$47,936dollars as filed
MARRIOTT INTL INC NEW CL A571903202Stock144$47,098dollars as filed
NASDAQ INC COM631103108Stock539$45,756dollars as filed
ARS PHARMACEUTICALS INC82835W108COM5,610$45,048dollars as filed
Thermo Fisher Scientific Inc.883556102COM88$43,255dollars as filed
Adobe Inc00724F101COM176$42,782dollars as filed
COLUMBIA BKG SYS INC197236102COM1,553$42,599dollars as filed
Waste Management, Inc.94106L109COM181$41,592dollars as filed
PTC INC COM69370C100Stock289$41,180dollars as filed
Amgen Inc.031162100COM117$41,166dollars as filed
MARTIN MARIETTA MATLS INC COM573284106Stock68$40,030dollars as filed
EQUIFAX INC COM294429105Stock210$37,815dollars as filed
AGILENT TECHNOLOGIES INC COM00846U101Stock324$36,930dollars as filed
Goldman Sachs Group,Inc.38141G104COM43$36,378dollars as filed
ALIGN TECHNOLOGY INC COM016255101Stock211$36,172dollars as filed
FISERV INC337738108COM645$35,991dollars as filed
PepsiCo,Inc.713448108COM230$35,717dollars as filed
Texas Instruments Incorporated882508104COM180$34,945dollars as filed
RELIANCE INC759509102COM111$33,735dollars as filed
PROSHARES TR74348A467S&P 500 DV ARIST318$33,673dollars as filedprincipal
BROADRIDGE FINL SOLUTIONS INC COM11133T103Stock199$32,334dollars as filed
PALO ALTO NETWORKS INC697435105COM200$32,064dollars as filed
CARLISLE COS INC COM142339100Stock96$32,028dollars as filed
Advanced Micro Devices,Inc.007903107COM150$30,515dollars as filed
BLACKSTONE SECD LENDING FD09261X102COMMON STOCK1,272$30,134dollars as filed
STIFEL FINL CORP860630102COM318$23,507dollars as filed
TMC THE METALS CO INC87261Y106COMMON STOCK4,675$21,832dollars as filed
PULSE BIOSCIENCES INC74587B101COMMON STOCK1,000$21,590dollars as filed
LPL FINL HLDGS INC COM50212V100Stock70$21,058dollars as filed
SNAP INC83304A106CL A4,000$18,400dollars as filed
RIVIAN AUTOMOTIVE INC COM CL A76954A103Stock1,175$17,684dollars as filed
COSTAR GROUP INC COM22160N109Stock326$13,151dollars as filed
iShares Ethereum Trust46438R105COM735$11,635dollars as filedprincipal
NEWSMAX INC65250K105COMMON STOCK2,120$11,066dollars as filed
Vertex Pharmaceuticals Incorporated92532F100COM21$9,377dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001007524-26-000002this filing2026-05-15acceptance time not in the bulk data set