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OSTERWEIS CAPITAL MANAGEMENT INC
Period ended Jun 30, 2026 · Latest filing Aug 14, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Sep 30, 2024: $1,973,932,473
- Dec 31, 2024: $2,149,101,752
- Mar 31, 2025: $2,026,050,307
- Jun 30, 2025: $2,090,086,624
- Sep 30, 2025: $2,215,909,888
- Dec 31, 2025: $2,362,738,606
- Mar 31, 2026: $1,938,865,854
- Jun 30, 2026: $2,120,950,602
Top holdings
Top 10 at Jun 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- ALPHABET INC · CAP STK CL C · 02079K107 · shares: $113,836,566
- APPLE INC · COM · 037833100 · shares: $69,393,693
- MARRIOTT VACATIONS WORLDWIDE · NOTE 3.250%12/1 · 57164YAF4 · principal: $62,216,210
- AMAZON COM INC · COM · 023135106 · shares: $60,233,523
- APPLIED MATLS INC · COM · 038222105 · shares: $58,792,914
- AFFIRM HLDGS INC · NOTE 11/1 · 00827BAB2 · principal: $56,637,500
- ANALOG DEVICES INC · COM · 032654105 · shares: $53,685,072
- MICROSOFT CORP · COM · 594918104 · shares: $52,558,517
- ELI LILLY & CO · COM · 532457108 · shares: $52,290,350
- BROADCOM INC · COM · 11135F101 · shares: $51,131,484
Reported holdings
280 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| ALPHABET INC | CAP STK CL C | 02079K107 | — | 239,005 shares | $84,447,637 |
| MARRIOTT VACATIONS WORLDWIDE | NOTE 3.250%12/1 | 57164YAF4 | — | 63,260,000 principal | $62,216,210 |
| AFFIRM HLDGS INC | NOTE 11/1 | 00827BAB2 | — | 57,500,000 principal | $56,637,500 |
| APPLE INC | COM | 037833100 | — | 189,558 shares | $54,850,459 |
| AMAZON COM INC | COM | 023135106 | — | 191,591 shares | $45,663,799 |
| APPLIED MATLS INC | COM | 038222105 | — | 62,291 shares | $45,036,393 |
| ANALOG DEVICES INC | COM | 032654105 | — | 101,898 shares | $40,470,829 |
| PEBBLEBROOK HOTEL TR | NOTE 1.750%12/1 | 70509VAA8 | — | 40,571,000 principal | $40,291,060 |
| MICROSOFT CORP | COM | 594918104 | — | 107,178 shares | $39,979,537 |
| BROADCOM INC | COM | 11135F101 | — | 103,527 shares | $39,107,324 |
| VISA INC | COM CL A | 92826C839 | — | 106,903 shares | $36,677,350 |
| JPMORGAN CHASE & CO | COM | 46625H100 | — | 107,173 shares | $35,080,938 |
| WASTE CONNECTIONS INC | COM | 94106B101 | — | 209,637 shares | $34,944,392 |
| REDFIN CORP | NOTE 0.500% 4/0 | 75737FAE8 | — | 35,377,000 principal | $34,138,805 |
| NVIDIA CORPORATION | COM | 67066G104 | — | 167,356 shares | $33,486,262 |
| ELI LILLY & CO | COM | 532457108 | — | 25,899 shares | $31,064,037 |
| ZIFF DAVIS INC | NOTE 1.750%11/0 | 48123VAE2 | — | 30,595,000 principal | $30,328,597 |
| AUTOZONE INC | COM | 053332102 | — | 9,265 shares | $29,610,384 |
| ALPHABET INC | CAP STK CL C | 02079K107 | — | 83,177 shares | $29,388,929 |
| DANAHER CORP DEL | COM | 235851102 | — | 141,259 shares | $26,907,014 |
| US FOODS HLDG CORP | COM | 912008109 | — | 254,537 shares | $26,026,408 |
| ABBVIE INC | COM | 00287Y109 | — | 102,555 shares | $25,806,940 |
| TERRENO RLTY CORP | COM | 88146M101 | — | 381,765 shares | $24,726,919 |
| BOEING CO | COM | 097023105 | — | 110,285 shares | $23,873,394 |
| AMERICAN WTR WKS CO INC NEW | COM | 030420103 | — | 179,512 shares | $23,620,189 |
| SYNOPSYS INC | COM | 871607107 | — | 51,111 shares | $22,799,084 |
| BOSTON SCIENTIFIC CORP | COM | 101137107 | — | 533,931 shares | $22,788,175 |
| PROGRESSIVE CORP | COM | 743315103 | — | 102,102 shares | $22,304,182 |
| LAMAR ADVERTISING CO | CL A | 512816109 | — | 141,178 shares | $22,020,944 |
| ELI LILLY & CO | COM | 532457108 | — | 17,697 shares | $21,226,313 |
| FERGUSON ENTERPRISES INC | COMMON STOCK NEW | 31488V107 | — | 88,911 shares | $21,101,248 |
| AMETEK INC | COM | 031100100 | — | 87,168 shares | $21,089,426 |
| NVR INC | COM | 62944T105 | — | 2,999 shares | $20,433,387 |
| CANADIAN PACIFIC KANSAS CITY | COM | 13646K108 | — | 230,530 shares | $19,975,425 |
| DEERE & CO | COM | 244199105 | — | 30,752 shares | $19,506,916 |
| VERICEL CORP | COM | 92346J108 | — | 398,365 shares | $17,723,259 |
| LIFE TIME GROUP HOLDINGS INC | COMMON STOCK | 53190C102 | — | 429,210 shares | $17,528,936 |
| SPX TECHNOLOGIES INC | COM | 78473E103 | — | 71,108 shares | $17,433,548 |
| NOVANTA INC | COM | 67000B104 | — | 105,125 shares | $17,055,480 |
| CARDINAL INFRASTRUCTURE GROU | CL A | 14154A102 | — | 179,516 shares | $16,910,407 |
| TWILIO INC | CL A | 90138F102 | — | 80,590 shares | $16,628,135 |
| VSE CORP | COM | 918284100 | — | 71,699 shares | $16,383,222 |
| AXOS FINANCIAL INC | COM | 05465C100 | — | 165,685 shares | $16,136,062 |
| GALLAGHER ARTHUR J & CO | COM | 363576109 | — | 70,179 shares | $16,110,993 |
| LOAR HOLDINGS INC | COM SHS | 53947R105 | — | 188,865 shares | $15,224,408 |
| REPLIGEN CORP | COM | 759916109 | — | 110,995 shares | $15,144,158 |
| GUARDANT HEALTH INC | COM | 40131M109 | — | 97,320 shares | $14,600,920 |
| UPWORK INC | NOTE 0.250% 8/1 | 91688FAB0 | — | 14,680,000 principal | $14,569,896 |
| AMAZON COM INC | COM | 023135106 | — | 61,130 shares | $14,569,724 |
| APPLE INC | COM | 037833100 | — | 50,260 shares | $14,543,234 |
| DUTCH BROS INC | CL A | 26701L100 | — | 201,610 shares | $14,477,614 |
| ALIGNMENT HEALTHCARE INC | COM | 01625V104 | — | 604,000 shares | $14,381,240 |
| DIGITALOCEAN HLDGS INC | COM | 25402D102 | — | 91,535 shares | $14,373,741 |
| AIR PRODUCTS AND CHEMICALS I | COM | 009158106 | — | 48,891 shares | $14,333,863 |
| ATRICURE INC | COM | 04963C209 | — | 501,355 shares | $14,027,913 |
| META PLATFORMS INC | CL A | 30303M102 | — | 24,876 shares | $14,012,402 |
| APPLIED MATLS INC | COM | 038222105 | — | 19,027 shares | $13,756,521 |
| WORKIVA INC | NOTE 1.125% 8/1 | 98139AAB1 | — | 13,436,000 principal | $13,369,492 |
| BOOT BARN HLDGS INC | COM | 099406100 | — | 81,015 shares | $13,308,334 |
| ANALOG DEVICES INC | COM | 032654105 | — | 33,271 shares | $13,214,243 |
| FIRSTSERVICE CORP NEW | COM | 33767E202 | — | 91,739 shares | $13,037,029 |
| AFFIRM HLDGS INC | COM CL A | 00827B106 | — | 157,605 shares | $12,852,688 |
| SLB LIMITED | COM STK | 806857108 | — | 275,389 shares | $12,802,835 |
| MICROSOFT CORP | COM | 594918104 | — | 33,722 shares | $12,578,980 |
| SITIME CORP | COM | 82982T106 | — | 16,670 shares | $12,428,485 |
| TRANSCAT INC | COM | 893529107 | — | 132,797 shares | $12,319,578 |
| LATTICE SEMICONDUCTOR CORP | COM | 518415104 | — | 79,865 shares | $12,216,150 |
| VISA INC | COM CL A | 92826C839 | — | 35,310 shares | $12,114,508 |
| BROADCOM INC | COM | 11135F101 | — | 31,831 shares | $12,024,160 |
| CASELLA WASTE SYS INC | CL A | 147448104 | — | 123,055 shares | $11,932,643 |
| KEYSIGHT TECHNOLOGIES INC | COM | 49338L103 | — | 32,851 shares | $11,500,150 |
| WASTE CONNECTIONS INC | COM | 94106B101 | — | 68,861 shares | $11,478,440 |
| TWIST BIOSCIENCE CORP | COM | 90184D100 | — | 111,458 shares | $11,466,799 |
| NVIDIA CORPORATION | COM | 67066G104 | — | 54,976 shares | $11,000,148 |
| JPMORGAN CHASE & CO | COM | 46625H100 | — | 32,829 shares | $10,745,917 |
| NOVARTIS AG | SPONSORED ADR | 66987V109 | — | 67,984 principal | $10,654,452 |
| AUTOZONE INC | COM | 053332102 | — | 3,248 shares | $10,380,413 |
| US FOODS HLDG CORP | COM | 912008109 | — | 98,609 shares | $10,082,770 |
| SEMTECH CORP | COM | 816850101 | — | 60,445 shares | $9,783,023 |
| MACOM TECH SOLUTIONS HLDGS I | COM | 55405Y100 | — | 25,396 shares | $9,659,877 |
| SERVICETITAN INC | SHS CL A | 81764X103 | — | 135,580 shares | $9,586,862 |
| CORPAY INC | COM SHS | 219948106 | — | 28,469 shares | $9,487,864 |
| AMERICAN WTR WKS CO INC NEW | COM | 030420103 | — | 69,663 shares | $9,166,258 |
| NEXTPOWER INC | CLASS A COM | 65290E101 | — | 74,675 shares | $8,896,780 |
| LAMAR ADVERTISING CO | CL A | 512816109 | — | 56,298 shares | $8,781,362 |
| PROGRESSIVE CORP | COM | 743315103 | — | 40,091 shares | $8,757,879 |
| HINGE HEALTH INC | CL A | 433313103 | — | 103,545 shares | $8,594,235 |
| DANAHER CORP DEL | COM | 235851102 | — | 44,756 shares | $8,525,123 |
| TERRENO RLTY CORP | COM | 88146M101 | — | 126,902 shares | $8,219,443 |
| ABBVIE INC | COM | 00287Y109 | — | 32,360 shares | $8,143,070 |
| BOEING CO | COM | 097023105 | — | 36,507 shares | $7,902,670 |
| DEERE & CO | COM | 244199105 | — | 12,316 shares | $7,812,408 |
| NAVAN INC | CL A | 639193101 | — | 337,640 shares | $7,721,827 |
| MICRON TECHNOLOGY INC | COM | 595112103 | — | 6,500 shares | $7,502,885 |
| BOSTON SCIENTIFIC CORP | COM | 101137107 | — | 175,018 shares | $7,469,768 |
| SYNOPSYS INC | COM | 871607107 | — | 16,488 shares | $7,354,802 |
| ETSY INC | NOTE 0.250% 6/1 | 29786AAN6 | — | 7,750,000 principal | $7,092,025 |
| AMETEK INC | COM | 031100100 | — | 28,528 shares | $6,902,064 |
| COGENT BIOSCIENCES INC | COM | 19240Q201 | — | 172,085 shares | $6,659,690 |
| DAVE INC | CLASS A COM NEW | 23834J201 | — | 17,672 shares | $6,584,410 |