OSTERWEIS CAPITAL MANAGEMENT INC
CIK
1007524
Location
SAN FRANCISCO, CA
Portfolio Value
Mid
$1,534,024,365
Diversification
Diversified
Filing Date
Global Rank
#1,152
/ 8,232
▲ 47
Top Industry
Semiconductors
11.2%
3Y Alpha vs SPY
-8.8%
Period ended 3 months ago
Filed May 15, 2026 · 31d
25 quarters · since Mar 2020
Clone Performance
Jun 2023–Jun 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+38.8%
SPY
+74.2%
Annualised alpha
-8.8%
Max drawdown
−21.2%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
201 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
3.5%
−1.7 pts
Top 5
16.4%
−3.2 pts
Top 10
30.0%
−2.4 pts
HHI
187
Diversified−15
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Technology | 26.7% | $409,617,271 |
| Industrials | 17.5% | $268,154,333 |
| Healthcare | 17.2% | $263,377,684 |
| Financial Services | 12.9% | $197,844,923 |
| Consumer Cyclical | 10.0% | $152,723,701 |
| Real Estate | 5.9% | $91,161,371 |
| Consumer Defensive | 2.7% | $41,474,853 |
| Utilities | 2.3% | $35,018,492 |
| Basic Materials | 2.2% | $33,595,330 |
| Energy | 1.6% | $24,674,414 |
| Communication Services | 1.0% | $16,073,142 |
| Unclassified | 0.0% | $308,851 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| BSX | Boston Scientific Corp | +172,712 | 442,192 | $27,747,547 | |
| ATRC | AtriCure, Inc. | +146,070 | 349,645 | $9,975,371 | |
| ABBV | AbbVie Inc. | +103,727 | 107,478 | $23,375,389 | |
| NVDA | Nvidia Corp | +96,172 | 228,679 | $39,881,617 | |
| CDNL | Cardinal Infrastructure Group Inc. | +93,711 | 169,936 | $6,738,812 | |
| VCEL | Vericel Corp | +78,070 | 401,045 | $12,901,617 | |
| HNGE | Hinge Health, Inc. | +38,010 | 210,270 | $8,108,011 | |
| RGEN | Repligen Corp | +37,585 | 92,220 | $10,865,360 | |
| LTH | Life Time Group Holdings, Inc. | +36,895 | 519,560 | $13,996,946 | |
| NXT | Nextpower Inc. | +34,085 | 82,335 | $9,925,484 | |
| VSEC | Vse Corp | +24,164 | 72,624 | $13,391,865 | |
| AX | Axos Financial, Inc. | +21,055 | 163,740 | $13,932,636 | |
| AORT | Artivion, Inc. | +19,490 | 240,217 | $8,796,746 | |
| AFRM | Affirm Holdings, Inc. | +14,551 | 60,760 | $2,784,023 | |
| GH | Guardant Health, Inc. | +13,010 | 148,946 | $13,758,142 | |
| TWLO | Twilio Inc | +10,715 | 65,930 | $8,295,312 | |
| PLMR | Palomar Holdings, Inc. | +10,580 | 68,090 | $8,136,755 | |
| WDAY | Workday, Inc. | +6,743 | 12,743 | $1,655,570 | |
| NOVT | Novanta Inc | +5,355 | 107,050 | $12,643,675 | |
| WCN | Waste Connections, Inc. | +3,097 | 240,762 | $39,109,378 | |
| CECO | Ceco Environmental Corp | +2,935 | 226,617 | $13,501,840 | |
| DHR | Danaher Corp /De/ | +2,856 | 190,961 | $36,206,204 | |
| V | Visa Inc. | +2,659 | 143,901 | $43,492,637 | |
| JPM | Jpmorgan Chase & Co | +2,458 | 141,453 | $41,609,813 | |
| ICE | Intercontinental Exchange, Inc. | +2,345 | 176,898 | $27,822,517 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| CHYM | Chime Financial, Inc. | −217,300 | 205,050 | $3,840,586 | |
| PRCT | PROCEPT BioRobotics Corp | −136,155 | 101,325 | $2,534,138 | |
| CRM | Salesforce, Inc. | −97,246 | 502 | $93,708 | |
| AMZN | Amazon Com Inc | −77,268 | 259,065 | $53,955,466 | |
| TTAN | ServiceTitan, Inc. | −57,575 | 59,480 | $3,774,600 | |
| MOD | Modine Manufacturing Co | −54,998 | 34,224 | $7,416,683 | |
| LSCC | Lattice Semiconductor Corp | −54,655 | 105,910 | $9,824,211 | |
| LAMR | Lamar Advertising Co/New | −54,562 | 201,236 | $25,488,551 | |
| AWK | American Water Works Company, Inc. | −46,663 | 256,432 | $34,897,830 | |
| TWST | Twist Bioscience Corp | −45,720 | 211,158 | $10,034,228 | |
| SIMO | Silicon Motion Technology CORP | −37,675 | 18,660 | $2,095,331 | |
| FSV | FirstService Corp | −37,470 | 64,884 | $9,014,982 | |
| USFD | US Foods Holding Corp. | −37,453 | 354,083 | $32,649,993 | |
| KEYS | Keysight Technologies, Inc. | −34,970 | 115,393 | $32,583,520 | |
| MSFT | Microsoft Corp | −31,958 | 144,666 | $53,551,012 | |
| APD | Air Products & Chemicals, Inc. | −28,862 | 114,446 | $33,245,417 | |
| BRO | Brown & Brown, Inc. | −28,435 | 397,311 | $25,908,649 | |
| AVGO | Broadcom Inc. | −27,022 | 155,094 | $48,003,143 | |
| AME | Ametek Inc/ | −26,311 | 116,894 | $25,057,396 | |
| TPB | Turning Point Brands, Inc. | −25,680 | 58,875 | $5,109,761 | |
| MTSI | MACOM Technology Solutions Holdings, Inc. | −24,427 | 36,543 | $8,115,104 | |
| TRNO | Terreno Realty Corp | −19,674 | 555,710 | $34,131,707 | |
| LHX | L3harris Technologies, Inc. /De/ | −19,202 | 89,868 | $31,017,939 | |
| CWST | Casella Waste Systems Inc | −12,465 | 148,270 | $11,763,741 | |
| AMAT | Applied Materials Inc /De | −10,745 | 142,132 | $48,579,295 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
13 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| PSA | Public Storage | 78,807 | $21,347,239 | |
| SLB | Slb Limited/Nv | 373,334 | $19,185,634 | |
| DOCN | DigitalOcean Holdings, Inc. | 115,965 | $9,947,477 | |
| BOOT | Boot Barn Holdings, Inc. | 58,680 | $8,588,404 | |
| LOAR | Loar Holdings Inc. | 138,370 | $7,927,217 | |
| TRNS | Transcat Inc | 100,462 | $7,378,933 | |
| ALHC | Alignment Healthcare, Inc. | 346,985 | $6,113,875 | |
| COGT | Cogent Biosciences, Inc. | 150,810 | $5,804,676 | |
| FSLY | Fastly, Inc. | 125,495 | $3,646,884 | |
| CLX | Clorox Co /De/ | 4,411 | $457,111 | |
| RJF | Raymond James Financial Inc | 560 | $81,082 | |
| ELS | Equity Lifestyle Properties Inc | 1,008 | $62,919 | |
| CSGP | Costar Group, Inc. | 326 | $13,150 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
25 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| INTU | Intuit Inc. | 43,190 | $28,609,919 | |
| VITL | Vital Farms, Inc. | 335,630 | $10,720,022 | |
| HURN | Huron Consulting Group Inc. | 48,660 | $8,413,800 | |
| WAY | Waystar Holding Corp. | 253,275 | $8,294,756 | |
| GWRE | Guidewire Software, Inc. | 37,644 | $7,566,820 | |
| MGY | Magnolia Oil & Gas Corp | 325,647 | $7,128,412 | |
| AGYS | Agilysys Inc | 39,420 | $4,684,672 | |
| AMPX | Amprius Technologies, Inc. | 454,830 | $3,588,608 | |
| BRZE | Braze, Inc. | 69,305 | $2,376,468 | |
| LEVI | Levi Strauss & Co | 25,000 | $518,500 | |
| SO | Southern Co | 1,981 | $172,743 | |
| DUK | Duke Energy CORP | 1,395 | $163,507 | |
| T | At&T Inc. | 6,234 | $154,852 | |
| CI | Cigna Group | 432 | $118,899 | |
| MKL | Markel Group Inc. | 53 | $113,931 | |
| KKR | KKR & Co. Inc. | 872 | $111,162 | |
| MCD | Mcdonalds Corp | 314 | $95,967 | |
| TKO | TKO Group Holdings, Inc. | 327 | $68,343 | |
| KO | Coca Cola Co | 872 | $60,961 | |
| LOW | Lowes Companies Inc | 236 | $56,913 | |
| AJG | Arthur J. Gallagher & Co. | 197 | $50,981 | |
| CASY | Caseys General Stores Inc | 88 | $48,638 | |
| BAC | Bank Of America Corp /De/ | 878 | $48,290 | |
| ADP | Automatic Data Processing Inc | 185 | $47,587 | |
| PODD | Insulet Corp | 163 | $46,331 | |
| No positions match the current search. | ||||
201 positions ·
$1,534,024,365 total
· as of Mar 31, 2026
All sectors
Basic Materials
Communication Services
Consumer Cyclical
Consumer Defensive
Energy
Financial Services
Healthcare
Industrials
Real Estate
Technology
Utilities
Showing 1–50
of 201 positions by value
· page 1 of 5
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| VRTX |
Vertex Pharmaceuticals Inc / Ma
Healthcare
|
Held | 21 | $9,377 | 0.00% | |
| NMAX |
Newsmax Inc.
Communication Services
|
Held | 2,120 | $11,066 | 0.00% | |
| ETHA |
iShares Ethereum Trust ETF
|
Held | 735 | $11,635 | 0.00% | |
| CSGP |
Costar Group, Inc.
Real Estate
|
NEW | 326 | $13,150 | 0.00% | |
| RIVN |
Rivian Automotive, Inc. / DE
Consumer Cyclical
|
Held | 1,175 | $17,683 | 0.00% | |
| SNAP |
Snap Inc
Communication Services
|
Held | 4,000 | $18,400 | 0.00% | |
| LPLA |
LPL Financial Holdings Inc.
Financial Services
|
Held | 70 | $21,058 | 0.00% | |
| PLSE |
Pulse Biosciences, Inc.
Healthcare
|
Held | 1,000 | $21,590 | 0.00% | |
| TMC |
TMC the metals Co Inc.
Basic Materials
|
Held | 4,675 | $21,832 | 0.00% | |
| SF |
Stifel Financial Corp
Financial Services
|
Added | 318 | $23,506 | 0.00% | |
| BXSL |
Blackstone Secured Lending Fund
Financial Services
|
Held | 1,272 | $30,133 | 0.00% | |
| AMD |
Advanced Micro Devices Inc
Technology
|
Held | 150 | $30,514 | 0.00% | |
| CSL |
Carlisle Companies Inc
Industrials
|
Held | 96 | $32,027 | 0.00% | |
| PANW |
Palo Alto Networks Inc
Technology
|
Reduced | 200 | $32,064 | 0.00% | |
| BR |
Broadridge Financial Solutions, Inc.
Technology
|
Held | 199 | $32,333 | 0.00% | |
| RS |
Reliance, Inc.
Basic Materials
|
Reduced | 111 | $33,735 | 0.00% | |
| TXN |
Texas Instruments Inc
Technology
|
Held | 180 | $34,945 | 0.00% | |
| PEP |
Pepsico Inc
Consumer Defensive
|
Held | 230 | $35,716 | 0.00% | |
| FISV |
Fiserv Inc
|
Held | 645 | $35,991 | 0.00% | |
| ALGN |
Align Technology Inc
Healthcare
|
Held | 211 | $36,171 | 0.00% | |
| GS |
Goldman Sachs Group Inc
Financial Services
|
Held | 43 | $36,377 | 0.00% | |
| A |
Agilent Technologies, Inc.
Healthcare
|
Held | 324 | $36,929 | 0.00% | |
| EFX |
Equifax Inc
Industrials
|
Held | 210 | $37,814 | 0.00% | |
| MLM |
Martin Marietta Materials Inc
Basic Materials
|
Held | 68 | $40,030 | 0.00% | |
| AMGN |
Amgen Inc
Healthcare
|
Held | 117 | $41,166 | 0.00% | |
| PTC |
Ptc Inc.
Technology
|
Held | 289 | $41,179 | 0.00% | |
| WM |
Waste Management Inc
Industrials
|
Reduced | 181 | $41,591 | 0.00% | |
| COLB |
Columbia Banking System, Inc.
Financial Services
|
Held | 1,553 | $42,598 | 0.00% | |
| ADBE |
Adobe Inc.
Technology
|
Held | 176 | $42,782 | 0.00% | |
| TMO |
Thermo Fisher Scientific Inc.
Healthcare
|
Held | 88 | $43,254 | 0.00% | |
| SPRY |
ARS Pharmaceuticals, Inc.
Healthcare
|
Held | 5,610 | $45,048 | 0.00% | |
| NDAQ |
Nasdaq, Inc.
Financial Services
|
Reduced | 539 | $45,755 | 0.00% | |
| MAR |
Marriott International Inc /Md/
Consumer Cyclical
|
Held | 144 | $47,098 | 0.00% | |
| HWM |
Howmet Aerospace Inc.
Industrials
|
Held | 208 | $47,935 | 0.00% | |
| IDA |
Idacorp Inc
Utilities
|
Held | 352 | $50,325 | 0.00% | |
| IR |
Ingersoll Rand Inc.
Industrials
|
Held | 631 | $50,555 | 0.00% | |
| CMI |
Cummins Inc
Industrials
|
Held | 95 | $51,111 | 0.00% | |
| NOW |
ServiceNow, Inc.
Technology
|
Reduced | 525 | $54,888 | 0.00% | |
| SHOP |
Shopify Inc.
Technology
|
Held | 463 | $54,921 | 0.00% | |
| ESE |
Esco Technologies Inc
Technology
|
Held | 205 | $57,680 | 0.00% | |
| EQT |
EQT Corp
Energy
|
Held | 921 | $58,612 | 0.00% | |
| PM |
Philip Morris International Inc.
Consumer Defensive
|
Reduced | 357 | $59,026 | 0.00% | |
| BLK |
BlackRock, Inc.
Financial Services
|
Reduced | 62 | $59,626 | 0.00% | |
| NFGC |
New Found Gold Corp.
Basic Materials
|
Held | 31,250 | $60,625 | 0.00% | |
| PRIM |
Primoris Services Corp
Industrials
|
Held | 431 | $61,650 | 0.00% | |
| ELS |
Equity Lifestyle Properties Inc
Real Estate
|
NEW | 1,008 | $62,919 | 0.00% | |
| MU |
Micron Technology Inc
Technology
|
Reduced | 190 | $64,189 | 0.00% | |
| CAT |
Caterpillar Inc
Industrials
|
Held | 91 | $64,469 | 0.00% | |
| COP |
Conocophillips
Energy
|
Held | 511 | $67,452 | 0.00% | |
| ETR |
Entergy Corp /De/
Utilities
|
Held | 626 | $70,337 | 0.00% |