Osterweis Capital Management Inc
Institutional manager — quarterly 13F holdings, Q ending 2026-03-31
Reported value
$1.94B
Q ending 2026-03-31
Prior quarter
$2.36B
Q ending 2025-12-31
Change
-17.9% QoQ · -4.3% YoY
Positions
229
reported holdings
Largest positions
Top 100 of 229 reported positions by value, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
| Holding | Ticker | Type | Value ▼ | Shares |
|---|---|---|---|---|
| Alphabet Inc | GOOG | Shares | $93.8M | 327K |
| Affirm Hldgs Inc | AFRM 0 11/15/26 | Principal | $55.8M | 57.5M |
| Amazon Com Inc | AMZN | Shares | $54.0M | 259K |
| Microsoft Corp | MSFT | Shares | $53.6M | 145K |
| Applied Matls Inc | AMAT | Shares | $48.6M | 142K |
| Marriott Vacations Worldwide | VAC 3.25 12/15/27 | Principal | $48.1M | 50.0M |
| Broadcom Inc | AVGO | Shares | $48.0M | 155K |
| Analog Devices Inc | ADI | Shares | $47.8M | 150K |
| Visa Inc | V | Shares | $43.5M | 144K |
| Autozone Inc | AZO | Shares | $42.6M | 13K |
| Jpmorgan Chase & Co | JPM | Shares | $41.6M | 141K |
| Jbt Marel Corporation | JBTM 0.25 05/15/26 | Principal | $41.2M | 41.3M |
| Eli Lilly & Co | LLY | Shares | $41.2M | 45K |
| Nvidia Corporation | NVDA | Shares | $39.9M | 229K |
| Waste Connections Inc | WCN | Shares | $39.1M | 241K |
| Danaher Corp Del | DHR | Shares | $36.2M | 191K |
| Penn Entertainment Inc | PENN 2.75 05/15/26 | Principal | $35.5M | 35.5M |
| Q2 Hldgs Inc | QTWO 0.75 06/01/26 | Principal | $35.3M | 35.4M |
| American Wtr Wks Co Inc New | AWK | Shares | $34.9M | 256K |
| Terreno Rlty Corp | TRNO | Shares | $34.1M | 556K |
| Air Products And Chemicals I | APD | Shares | $33.2M | 114K |
| Pebblebrook Hotel Tr | PEB 1.75 12/15/26 | Principal | $33.1M | 33.9M |
| Us Foods Hldg Corp | USFD | Shares | $32.6M | 354K |
| Keysight Technologies Inc | KEYS | Shares | $32.6M | 115K |
| L3Harris Technologies Inc | LHX | Shares | $31.0M | 90K |
| Ziff Davis Inc | ZD 1.75 11/01/26 | Principal | $30.1M | 30.6M |
| Progressive Corp | PGR | Shares | $28.7M | 145K |
| Intercontinental Exchange In | ICE | Shares | $27.8M | 177K |
| Boston Scientific Corp | BSX | Shares | $27.7M | 442K |
| Ferguson Enterprises Inc | FERG | Shares | $27.5M | 118K |
| Brown & Brown Inc | BRO | Shares | $25.9M | 397K |
| Lamar Advertising Co | LAMR | Shares | $25.5M | 201K |
| Canadian Pacific Kansas City | CP | Shares | $25.3M | 322K |
| Ametek Inc | AME | Shares | $25.1M | 117K |
| Deere & Co | DE | Shares | $24.5M | 43K |
| Abbvie Inc | ABBV | Shares | $23.4M | 107K |
| Boeing Co | BA | Shares | $21.7M | 109K |
| Public Storage Oper Co | PSA | Shares | $21.3M | 79K |
| Labcorp Holdings Inc | LH | Shares | $20.5M | 77K |
| Slb Limited | SLB | Shares | $19.2M | 373K |
| Nvr Inc | NVR | Shares | $18.0M | 3K |
| Synopsys Inc | SNPS | Shares | $17.5M | 44K |
| Upwork Inc | UPWK 0.25 08/15/26 | Principal | $14.4M | 14.7M |
| Meta Platforms Inc | META | Shares | $14.3M | 25K |
| Life Time Group Holdings Inc | LTH | Shares | $14.0M | 520K |
| Axos Financial Inc | AX | Shares | $13.9M | 164K |
| Guardant Health Inc | GH | Shares | $13.8M | 149K |
| Ceco Environmental Corp | CECO | Shares | $13.5M | 227K |
| Vse Corp | VSEC | Shares | $13.4M | 73K |
| Vericel Corp | VCEL | Shares | $12.9M | 401K |
| Novartis Ag | NVS | Principal | $12.8M | 84K |
| Novanta Inc | NOVT | Shares | $12.6M | 107K |
| Corpay Inc | CPAY | Shares | $12.2M | 42K |
| Casella Waste Sys Inc | CWST | Shares | $11.8M | 148K |
| Apple Inc | AAPL | Shares | $11.6M | 46K |
| Repligen Corp | RGEN | Shares | $10.9M | 92K |
| Glaukos Corp | GKOS | Shares | $10.2M | 95K |
| Twist Bioscience Corp | TWST | Shares | $10.0M | 211K |
| Atricure Inc | ATRC | Shares | $10.0M | 350K |
| Digitalocean Hldgs Inc | DOCN | Shares | $9.9M | 116K |
| Nextpower Inc | NXT | Shares | $9.9M | 82K |
| Lattice Semiconductor Corp | LSCC | Shares | $9.8M | 106K |
| Spx Technologies Inc | SPXC | Shares | $9.8M | 49K |
| Firstservice Corp New | FSV | Shares | $9.0M | 65K |
| Artivion Inc | AORT | Shares | $8.8M | 240K |
| Sitime Corp | SITM | Shares | $8.7M | 25K |
| Boot Barn Hldgs Inc | BOOT | Shares | $8.6M | 59K |
| Twilio Inc | TWLO | Shares | $8.3M | 66K |
| Palomar Hldgs Inc | PLMR | Shares | $8.1M | 68K |
| Macom Tech Solutions Hldgs I | MTSI | Shares | $8.1M | 37K |
| Hinge Health Inc | HNGE | Shares | $8.1M | 210K |
| Loar Holdings Inc | LOAR | Shares | $7.9M | 138K |
| Modine Mfg Co | MOD | Shares | $7.4M | 34K |
| Transcat Inc | TRNS | Shares | $7.4M | 100K |
| Rambus Inc Del | RMBS | Shares | $7.3M | 85K |
| Etsy Inc | ETSY 0.25 06/15/28 | Principal | $6.9M | 7.8M |
| Cava Group Inc | CAVA | Shares | $6.8M | 84K |
| Cardinal Infrastructure Grou | CDNL | Shares | $6.7M | 170K |
| Alignment Healthcare Inc | ALHC | Shares | $6.1M | 347K |
| Cogent Biosciences Inc | COGT | Shares | $5.8M | 151K |
| Turning Pt Brands Inc | TPB | Shares | $5.1M | 59K |
| Chime Finl Inc | CHYM | Shares | $3.8M | 205K |
| Servicetitan Inc | TTAN | Shares | $3.8M | 59K |
| Fastly Inc | FSLY | Shares | $3.6M | 125K |
| Berkshire Hathaway Inc Del | BRK/A | Shares | $3.6M | 5 |
| Autodesk Inc | ADSK | Shares | $3.4M | 14K |
| Enterprise Prods Partners L | EPD | Shares | $3.3M | 88K |
| Affirm Hldgs Inc | AFRM | Shares | $2.8M | 61K |
| Procept Biorobotics Corp | PRCT | Shares | $2.5M | 101K |
| Berkshire Hathaway Inc Del | BRK/B | Shares | $2.5M | 5K |
| Procter & Gamble Co | PG | Shares | $2.3M | 16K |
| Silicon Motion Technology Co | SIMO | Principal | $2.1M | 19K |
| Exxon Mobil Corp | XOM | Shares | $1.8M | 11K |
| Workday Inc | WDAY | Shares | $1.7M | 13K |
| Schwab Strategic Tr | SCHB | Principal | $1.4M | 58K |
| Alphabet Inc | GOOGL | Shares | $1.4M | 5K |
| Fair Isaac Corp | FICO | Shares | $1.4M | 1K |
| Palantir Technologies Inc | PLTR | Shares | $1.3M | 9K |
| Johnson & Johnson | JNJ | Shares | $1.1M | 4K |
| Vanguard Index Fds | VOO | Principal | $1.0M | 2K |
Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.