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Institutional

OSTERWEIS CAPITAL MANAGEMENT INC

CIK 0001007524
$1.94B
Reported AUM
229
Positions
Q1 2026
Period
2026-05-15
Filed

The Brief · OSTERWEIS CAPITAL MANAGEMENT INC · Q1 2026

AI · grounded in 13F

OSTERWEIS CAPITAL MANAGEMENT INC closed its position in [[stock:ABNB 0 03/15/26]] for a reduction of $76.1M. The fund also exited positions in [[stock:BSY 0.125 01/15/26]] and [[stock:VAC 0 01/15/26]], reducing exposure by $75.7M and $70.9M respectively. On the buy side, the manager established a new position in [[stock:AFRM 0 11/15/26]] worth $55.8M and added [[stock:VAC 3.25 12/15/27]] for $48.1M. Overall, the fund added 58 positions and reduced 148.

Portfolio · Q1 2026

GOOG$93.8MAFFIRM$55.8MAMZN$54.0MMSFT$53.6MAMAT$48.6MMARRIOT$48.1MAVGO$48.0MADI$47.8MV$43.5MAZO$42.6MJPM$41.6MJBT$41.2MOther$1.32BOI

Top holdings

QoQ vs Q4 2025

#TickerIssuerValue% of bookΔ shares (QoQ)Status
1GOOGALPHABET INC$93.8M4.84%-32,049-8.9%
2AFRM 0 11/15/26AFFIRM HLDGS INC$55.8M2.88%+57,500,000NEW
3AMZNAMAZON COM INC$54.0M2.78%-77,268-23.0%
4MSFTMICROSOFT CORP$53.6M2.76%-31,958-18.1%
5AMATAPPLIED MATLS INC$48.6M2.51%-10,745-7.0%
6VAC 3.25 12/15/27MARRIOTT VACATIONS WORLDWIDE$48.1M2.48%+50,000,000NEW
7AVGOBROADCOM INC$48.0M2.48%-27,022-14.8%
8ADIANALOG DEVICES INC$47.8M2.47%-1,677-1.1%
9VVISA INC$43.5M2.24%+2,659+1.9%
10AZOAUTOZONE INC$42.6M2.20%+1,274+11.2%
11JPMJPMORGAN CHASE & CO$41.6M2.15%+2,458+1.8%
12JBTM 0.25 05/15/26JBT MAREL CORPORATION$41.2M2.13%+37,194,000+910.5%
13LLYELI LILLY & CO$41.2M2.12%+10+0.0%
14NVDANVIDIA CORPORATION$39.9M2.06%+96,172+72.6%
15WCNWASTE CONNECTIONS INC$39.1M2.02%+3,097+1.3%
16DHRDANAHER CORP DEL$36.2M1.87%+2,856+1.5%
17PENN 2.75 05/15/26PENN ENTERTAINMENT INC$35.5M1.83%+35,453,000NEW
18QTWO 0.75 06/01/26Q2 HLDGS INC$35.3M1.82%+35,428,000NEW
19AWKAMERICAN WTR WKS CO INC NEW$34.9M1.80%-46,663-15.4%
20TRNOTERRENO RLTY CORP$34.1M1.76%-19,674-3.4%
21APDAIR PRODUCTS AND CHEMICALS I$33.2M1.71%-28,862-20.1%
22PEB 1.75 12/15/26PEBBLEBROOK HOTEL TR$33.1M1.71%+25,000,000+281.8%
23USFDUS FOODS HLDG CORP$32.6M1.68%-37,453-9.6%
24KEYSKEYSIGHT TECHNOLOGIES INC$32.6M1.68%-34,970-23.3%
25LHXL3HARRIS TECHNOLOGIES INC$31.0M1.60%-19,202-17.6%
26ZD 1.75 11/01/26ZIFF DAVIS INC$30.1M1.55%+20,000,000+188.8%
27PGRPROGRESSIVE CORP$28.7M1.48%-6,512-4.3%
28ICEINTERCONTINENTAL EXCHANGE IN$27.8M1.43%+2,345+1.3%
29BSXBOSTON SCIENTIFIC CORP$27.7M1.43%+172,712+64.1%
30FERGFERGUSON ENTERPRISES INC$27.5M1.42%-1,555-1.3%
31BROBROWN & BROWN INC$25.9M1.34%-28,435-6.7%
32LAMRLAMAR ADVERTISING CO$25.5M1.31%-54,562-21.3%
33CPCANADIAN PACIFIC KANSAS CITY$25.3M1.31%-1,376-0.4%
34AMEAMETEK INC$25.1M1.29%-26,311-18.4%
35DEDEERE & CO$24.5M1.26%-43-0.1%
36ABBVABBVIE INC$23.4M1.21%+103,727+2765.3%
37BABOEING CO$21.7M1.12%+405+0.4%
38PSAPUBLIC STORAGE OPER CO$21.3M1.10%+78,807NEW
39LHLABCORP HOLDINGS INC$20.5M1.06%+920+1.2%
40SLBSLB LIMITED$19.2M0.99%+373,334NEW
41NVRNVR INC$18.0M0.93%+100+3.8%
42SNPSSYNOPSYS INC$17.5M0.90%+783+1.8%
43UPWK 0.25 08/15/26UPWORK INC$14.4M0.74%+14,680,000NEW
44METAMETA PLATFORMS INC$14.3M0.74%-195-0.8%
45LTHLIFE TIME GROUP HOLDINGS INC$14.0M0.72%+36,895+7.6%
46AXAXOS FINANCIAL INC$13.9M0.72%+21,055+14.8%
47GHGUARDANT HEALTH INC$13.8M0.71%+13,010+9.6%
48CECOCECO ENVIRONMENTAL CORP$13.5M0.70%+2,935+1.3%
49VSECVSE CORP$13.4M0.69%+24,164+49.9%
50VCELVERICEL CORP$12.9M0.67%+78,070+24.2%
51NVSNOVARTIS AG$12.8M0.66%-3,891-4.4%
52NOVTNOVANTA INC$12.6M0.65%+5,355+5.3%
53CPAYCORPAY INC$12.2M0.63%-1,555-3.6%
54CWSTCASELLA WASTE SYS INC$11.8M0.61%-12,465-7.8%
55AAPLAPPLE INC$11.6M0.60%-212-0.5%
56RGENREPLIGEN CORP$10.9M0.56%+37,585+68.8%
57GKOSGLAUKOS CORP$10.2M0.53%-6,750-6.6%
58TWSTTWIST BIOSCIENCE CORP$10.0M0.52%-45,720-17.8%
59ATRCATRICURE INC$10.0M0.51%+146,070+71.8%
60DOCNDIGITALOCEAN HLDGS INC$9.9M0.51%+115,965NEW
61NXTNEXTPOWER INC$9.9M0.51%+34,085+70.6%
62LSCCLATTICE SEMICONDUCTOR CORP$9.8M0.51%-54,655-34.0%
63SPXCSPX TECHNOLOGIES INC$9.8M0.51%+852+1.8%
64FSVFIRSTSERVICE CORP NEW$9.0M0.46%-37,470-36.6%
65AORTARTIVION INC$8.8M0.45%+19,490+8.8%
66SITMSITIME CORP$8.7M0.45%-5,561-18.1%
67BOOTBOOT BARN HLDGS INC$8.6M0.44%+58,680NEW
68TWLOTWILIO INC$8.3M0.43%+10,715+19.4%
69PLMRPALOMAR HLDGS INC$8.1M0.42%+10,580+18.4%
70MTSIMACOM TECH SOLUTIONS HLDGS I$8.1M0.42%-24,427-40.1%
71HNGEHINGE HEALTH INC$8.1M0.42%+38,010+22.1%
72LOARLOAR HOLDINGS INC$7.9M0.41%+138,370NEW
73MODMODINE MFG CO$7.4M0.38%-54,998-61.6%
74TRNSTRANSCAT INC$7.4M0.38%+100,462NEW
75RMBSRAMBUS INC DEL$7.3M0.38%-4,135-4.6%
76ETSY 0.25 06/15/28ETSY INC$6.9M0.36%HELD
77CAVACAVA GROUP INC$6.8M0.35%-3,720-4.3%
78CDNLCARDINAL INFRASTRUCTURE GROU$6.7M0.35%+93,711+122.9%
79ALHCALIGNMENT HEALTHCARE INC$6.1M0.32%+346,985NEW
80COGTCOGENT BIOSCIENCES INC$5.8M0.30%+150,810NEW
81TPBTURNING PT BRANDS INC$5.1M0.26%-25,680-30.4%
82CHYMCHIME FINL INC$3.8M0.20%-217,300-51.5%
83TTANSERVICETITAN INC$3.8M0.19%-57,575-49.2%
84FSLYFASTLY INC$3.6M0.19%+125,495NEW
85BRK/ABERKSHIRE HATHAWAY INC DEL$3.6M0.19%HELD
86ADSKAUTODESK INC$3.4M0.17%HELD
87EPDENTERPRISE PRODS PARTNERS L$3.3M0.17%HELD
88AFRMAFFIRM HLDGS INC$2.8M0.14%+14,551+31.5%
89PRCTPROCEPT BIOROBOTICS CORP$2.5M0.13%-136,155-57.3%
90BRK/BBERKSHIRE HATHAWAY INC DEL$2.5M0.13%-521-9.0%
91PGPROCTER & GAMBLE CO$2.3M0.12%-1,028-6.0%
92SIMOSILICON MOTION TECHNOLOGY CO$2.1M0.11%-37,675-66.9%
93XOMEXXON MOBIL CORP$1.8M0.09%HELD
94WDAYWORKDAY INC$1.7M0.09%+6,743+112.4%
95SCHBSCHWAB STRATEGIC TR$1.4M0.07%-32,430-36.0%
96GOOGLALPHABET INC$1.4M0.07%-1,120-18.4%
97FICOFAIR ISAAC CORP$1.4M0.07%HELD
98PLTRPALANTIR TECHNOLOGIES INC$1.3M0.07%HELD
99JNJJOHNSON & JOHNSON$1.1M0.06%-79-1.8%
100VOOVANGUARD INDEX FDS$1.0M0.05%-545-23.9%
101UNPUNION PAC CORP$971K0.05%-256-6.0%
102ESSESSEX PPTY TR INC$968K0.05%HELD
103XLKSELECT SECTOR SPDR TR$689K0.04%HELD
104FTGCFIRST TR EXCHANGE TRAD FD VI$686K0.04%-4,000-14.3%
105IEFAISHARES TR$565K0.03%HELD
106MRKMERCK & CO INC$503K0.03%-248-5.6%
107HYSPIMCO ETF TR$501K0.03%HELD
108VXUSVANGUARD STAR FDS$466K0.02%+3,228+114.5%
109AXPAMERICAN EXPRESS CO$458K0.02%-10-0.7%
110CLXCLOROX CO DEL$457K0.02%+4,411NEW
111COSTCOSTCO WHOLESALE CORPORATION$453K0.02%-34-7.0%
112ISTBISHARES TR$436K0.02%HELD
113WRBBERKLEY W R CORP$420K0.02%HELD
114HDHOME DEPOT INC$387K0.02%-168-12.5%
115TSLATESLA INC$384K0.02%HELD
116WMTWALMART INC$382K0.02%HELD
117MSMORGAN STANLEY$375K0.02%HELD
118WMT2WELLS FARGO & CO$343K0.02%HELD
119KLACKLA CORP$321K0.02%HELD
120RTXRTX CORPORATION$313K0.02%HELD
121BILSPDR SERIES TRUST$308K0.02%HELD
122ORCLORACLE CORP$271K0.01%-74-3.9%
123CSCOCISCO SYS INC$238K0.01%HELD
124CRCRANE COMPANY$227K0.01%HELD
125IGMISHARES TR$224K0.01%HELD
126ABNBAIRBNB INC$217K0.01%HELD
127GDGENERAL DYNAMICS CORP$204K0.01%HELD
128MCKMCKESSON CORP$196K0.01%-6-2.6%
129PNCPNC FINL SVCS GROUP INC$190K0.01%HELD
130GLDSPDR GOLD TR$184K0.01%+268+168.6%
131VIOOVANGUARD ADMIRAL FDS INC$177K0.01%HELD
132TJXTJX COS INC NEW$176K0.01%HELD
133LRCXLAM RESEARCH CORP$170K0.01%HELD
134ISRGINTUITIVE SURGICAL INC$170K0.01%-30-7.5%
135PHPARKER-HANNIFIN CORP$167K0.01%HELD
136NSCNORFOLK SOUTHN CORP$167K0.01%HELD
137VGSHVANGUARD SCOTTSDALE FDS$167K0.01%HELD
138QUREQUANTA SVCS INC$165K0.01%HELD
139TSMTAIWAN SEMICONDUCTOR MANUFAC$160K0.01%HELD
140DISDISNEY WALT CO$154K0.01%HELD
141CCITIGROUP INC$149K0.01%HELD
142VRTVERTIV HOLDINGS CO$145K0.01%HELD
143BKBANK NEW YORK MELLON CORP$142K0.01%HELD
144ORLYOREILLY AUTOMOTIVE INC$140K0.01%HELD
145VXFVANGUARD INDEX FDS$138K0.01%+202+42.9%
146PLDPROLOGIS INC.$135K0.01%HELD
147ABTABBOTT LABORATORIES$130K0.01%-2,087-62.3%
148NFLXNETFLIX INC.$125K0.01%-550-29.7%
149CVXCHEVRON CORPORATION$124K0.01%-205-25.5%
150AEMAGNICO EAGLE MINES LTD$120K0.01%HELD
151FASTFASTENAL CO$118K0.01%-1,405-35.5%
152ODFLOLD DOMINION FREIGHT LINE IN$118K0.01%HELD
153RBCRBC BEARINGS INC$115K0.01%HELD
154CRWDCROWDSTRIKE HLDGS INC$112K0.01%HELD
155BKNGBOOKING HOLDINGS INC$105K0.01%-1-3.8%
156NNNEXTNAV INC$105K0.01%HELD
157SPGIS&P GLOBAL INC$104K0.01%-91-27.2%
158EMEEMCOR GROUP INC$100K0.01%HELD
159UBERUBER TECHNOLOGIES INC$96K0.00%-340-20.4%
160SMMTSUMMIT THERAPEUTICS INC$95K0.00%HELD
161HEIHEICO CORP NEW$94K0.00%-187-35.2%
162CRMSALESFORCE INC$94K0.00%-97,246-99.5%
163MRSHMARSH & MCLENNAN COS INC$89K0.00%-328-39.0%
164HASIHA SUSTAINABLE INFRA CAP INC$88K0.00%HELD
165IBMINTERNATIONAL BUSINESS MACHS$86K0.00%-154-30.3%
166VLOVALERO ENERGY CORP$84K0.00%HELD
167QXOQXO INC$82K0.00%HELD
168NOCNORTHROP GRUMMAN CORP$81K0.00%HELD
169LYFTLYFT INC$81K0.00%HELD
170RJFRAYMOND JAMES FINL INC$81K0.00%+560NEW
171ABALLIANCEBERNSTEIN HLDG L P$80K0.00%HELD
172IBITISHARES BITCOIN TRUST ETF$77K0.00%+1,075+114.1%
173CMECME GROUP INC$76K0.00%-126-32.8%
174MSCIMSCI INC$74K0.00%HELD
175PPTAPERPETUA RESOURCES CORP$74K0.00%HELD
176ETRENTERGY CORP NEW$70K0.00%HELD
177COPCONOCOPHILLIPS$67K0.00%HELD
178IVVISHARES TR$65K0.00%HELD
179KWEBKRANESHARES TRUST$65K0.00%HELD
180CATCATERPILLAR INC$64K0.00%HELD
181MUMICRON TECHNOLOGY INC$64K0.00%-33-14.8%
182ELSEQUITY LIFESTYLE PROPERTIES$63K0.00%+1,008NEW
183VUGVANGUARD INDEX FDS$63K0.00%HELD
184PRIMPRIMORIS SVCS CORP$62K0.00%HELD
185NFGCNEW FOUND GOLD CORP$61K0.00%HELD
186BLKBLACKROCK INC$60K0.00%-11-15.1%
187PMPHILIP MORRIS INTL INC$59K0.00%-26-6.8%
188EQTEQT CORP$59K0.00%HELD
189ESEESCO TECHNOLOGIES INC$58K0.00%HELD
190SHOPSHOPIFY INC$55K0.00%HELD
191NOWSERVICENOW INC$55K0.00%-960-64.6%
192CMICUMMINS INC$51K0.00%HELD
193IRINGERSOLL RAND INC$51K0.00%HELD
194IDAIDACORP INC$50K0.00%HELD
195HWMHOWMET AEROSPACE INC$48K0.00%HELD
196MARMARRIOTT INTL INC NEW$47K0.00%HELD
197NDAQNASDAQ INC$46K0.00%-461-46.1%
198SPRYARS PHARMACEUTICALS INC$45K0.00%HELD
199TMOTHERMO FISHER SCIENTIFIC INC$43K0.00%HELD
200ADBEADOBE INC$43K0.00%HELD
201COLBCOLUMBIA BKG SYS INC$43K0.00%HELD
202WMWASTE MGMT INC DEL$42K0.00%-92-33.7%
203PTCPTC INC$41K0.00%HELD
204AMGNAMGEN INC$41K0.00%HELD
205MLMMARTIN MARIETTA MATLS INC$40K0.00%HELD
206EFXEQUIFAX INC$38K0.00%HELD
207AAGILENT TECHNOLOGIES INC$37K0.00%HELD
208GSGOLDMAN SACHS GROUP INC$36K0.00%HELD
209ALGNALIGN TECHNOLOGY INC$36K0.00%HELD
210FISVFISERV INC$36K0.00%HELD
211PEPPEPSICO INC$36K0.00%HELD
212TXNTEXAS INSTRS INC$35K0.00%HELD
213RSRELIANCE INC$34K0.00%-63-36.2%
214NOBLPROSHARES TR$34K0.00%-1,683-84.1%
215BRBROADRIDGE FINL SOLUTIONS IN$32K0.00%HELD
216PANWPALO ALTO NETWORKS INC$32K0.00%-560-73.7%
217CSLCARLISLE COS INC$32K0.00%HELD
218AMDADVANCED MICRO DEVICES INC$31K0.00%HELD
219BXSLBLACKSTONE SECD LENDING FD$30K0.00%HELD
220SFSTIFEL FINL CORP$24K0.00%+106+50.0%
221TMCTMC THE METALS COMPANY INC$22K0.00%HELD
222PLSEPULSE BIOSCIENCES INC$22K0.00%HELD
223LPLALPL FINL HLDGS INC$21K0.00%HELD
224SNAPSNAP INC$18K0.00%HELD
225RIVNRIVIAN AUTOMOTIVE INC$18K0.00%HELD
226CSGPCOSTAR GROUP INC$13K0.00%+326NEW
227ETHAISHARES ETHEREUM TR$12K0.00%HELD
228NMAXNEWSMAX INC$11K0.00%HELD
229VRTXVERTEX PHARMACEUTICALS INC$9K0.00%HELD
230ABNB 0 03/15/26AIRBNB INC-76,750,000EXITED
231BSY 0.125 01/15/26BENTLEY SYS INC-75,804,000EXITED
232VAC 0 01/15/26MARRIOTT VACATIONS WORLDWIDE-71,011,000EXITED
233INN 1.5 02/15/26SUMMIT HOTEL PPTYS-70,537,000EXITED
234CABO 0 03/15/26CABLE ONE INC-70,305,000EXITED
235ENPH 0 03/01/26ENPHASE ENERGY INC-68,500,000EXITED
236HAE 0 03/01/26HAEMONETICS CORP MASS-48,570,000EXITED
237MTN 0 01/01/26VAIL RESORTS INC-41,704,000EXITED
238ALRM 0 01/15/26ALARM COM HLDGS INC-41,165,000EXITED
239INTUINTUIT-43,190EXITED
240VITLVITAL FARMS INC-335,630EXITED
241HURNHURON CONSULTING GROUP INC-48,660EXITED
242WAYWAYSTAR HLDG CORP-253,275EXITED
243GWREGUIDEWIRE SOFTWARE INC-37,644EXITED
244MGYMAGNOLIA OIL & GAS CORP-325,647EXITED
245AGYSAGILYSYS INC-39,420EXITED
246AMPXAMPRIUS TECHNOLOGIES INC-454,830EXITED
247BRZEBRAZE INC-69,305EXITED
248LEVILEVI STRAUSS & CO NEW-25,000EXITED
249SOSOUTHERN CO-1,981EXITED
250DUKDUKE ENERGY CORP NEW-1,395EXITED
251TAT&T INC-6,234EXITED
252CITHE CIGNA GROUP-432EXITED
253MKLMARKEL GROUP INC-53EXITED
254KKRKKR & CO INC-872EXITED
255MCDMCDONALDS CORP-314EXITED
256TKOTKO GROUP HOLDINGS INC-327EXITED
257KOCOCA COLA CO-872EXITED
258LOWLOWES COS INC-236EXITED
259AZNNASTRAZENECA PLC-560EXITED
260AJGGALLAGHER ARTHUR J & CO-197EXITED
261CASYCASEYS GEN STORES INC-88EXITED
262BACBANK AMERICA CORP-878EXITED
263ADPAUTOMATIC DATA PROCESSING IN-185EXITED
264PODDINSULET CORP-163EXITED
265TRMBTRIMBLE INC-589EXITED
266ITWILLINOIS TOOL WKS INC-172EXITED
267SSNCSS&C TECHNOLOGIES HLDGS INC-478EXITED
268EVREVERCORE INC-120EXITED
269EOGEOG RES INC-363EXITED
270GFFGRIFFON CORP-512EXITED
271BPBP PLC-1,057EXITED
272CACICACI INTL INC-65EXITED
273MMM3M CO-215EXITED
274AZZAZZ INC-313EXITED
275APPAPPLOVIN CORP-46EXITED
276GRBKGREEN BRICK PARTNERS INC-491EXITED
277CDWCDW CORP-217EXITED
278COFCAPITAL ONE FINL CORP-118EXITED
279TRVTRAVELERS COMPANIES INC-96EXITED
280SONYSONY GROUP CORP-1,078EXITED
281SGISOMNIGROUP INTERNATIONAL INC-309EXITED
282NEENEXTERA ENERGY INC-330EXITED
283BROSDUTCH BROS INC-396EXITED
284EXLSEXLSERVICE HOLDINGS INC-550EXITED
285ULUNILEVER PLC-356EXITED
286SCHWSCHWAB CHARLES CORP-226EXITED
287MAMASTERCARD INCORPORATED-39EXITED
288INGING GROEP N.V.-740EXITED
289SUSUNCOR ENERGY INC NEW-437EXITED
290SYKSTRYKER CORPORATION-54EXITED
291PCARPACCAR INC-161EXITED
292BCSBARCLAYS PLC-687EXITED
293MDLZMONDELEZ INTL INC-323EXITED
294LIILENNOX INTL INC-34EXITED
295HSBCHSBC HLDGS PLC-191EXITED
296MUFGMITSUBISHI UFJ FINL GROUP IN-947EXITED
297RBARB GLOBAL INC-145EXITED
298SHELSHELL PLC-201EXITED
299HIPOHIPPO HLDGS INC-490EXITED
300MORNMORNINGSTAR INC-64EXITED
301LYGLLOYDS BANKING GROUP PLC-2,532EXITED
302GSKGSK PLC-243EXITED
303POOLPOOL CORP-41EXITED

Source: SEC EDGAR · accession 0001007524-26-000002. 13F discloses long positions only — shorts, foreign equities, and options are excluded.