Filed: 11/14/2025ACC: 0001007524-25-000003
📋 What this filing means
OSTERWEIS CAPITAL MANAGEMENT INC filed this quarterly 13F‑HR report disclosing 275 equity positions with a total reported market value of $2.22B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
275
Positions
$2.22B
Total AUM (reported)
516.89M
Total Shares
Allocation by class
COM$1.34B60.4%
NOTE 3/1$141.04M6.4%
CAP STK CL C$107.05M4.8%
CL A$99.06M4.5%
NOTE 11/0$59.01M2.7%
NOTE 3/0$57.50M2.6%
NOTE 0.250%11/1$54.13M2.4%
Portfolio Concentration
Top 3$284.14M12.8%
4–10$424.13M19.1%
11–25$600.14M27.1%
Rest$907.50M41.0%
Top 3 weight
12.8%
Top 10 weight
32.0%
Voting Authority Distribution
Total shares with voting rights: 516.89M
Sole
Full voting authority
516.89M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole275
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings275
Rows:
ALPHABET INC
SOLEShares439.53K
TypeSH
Market value$107.05M
4.83%
Sole
439.53K
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares191.76K
TypeSH
Market value$99.32M
4.48%
Sole
191.76K
Shared
0.00
None
0.00
AMAZON COM INC
SOLEShares354.20K
TypeSH
Market value$77.77M
3.51%
Sole
354.20K
Shared
0.00
None
0.00
BROADCOM INC
SOLEShares211.37K
TypeSH
Market value$69.73M
3.15%
Sole
211.37K
Shared
0.00
None
0.00
AIRBNB INC
SOLEShares70.75M
TypePRN
Market value$69.33M
3.13%
Sole
70.75M
Shared
0.00
None
0.00
CABLE ONE INC
SOLEShares70.31M
TypePRN
Market value$68.65M
3.10%
Sole
70.31M
Shared
0.00
None
0.00
FIVERR INTL LTD
SOLEShares59M
TypePRN
Market value$59.01M
2.66%
Sole
59M
Shared
0.00
None
0.00
DEXCOM INC
SOLEShares54.50M
TypePRN
Market value$54.13M
2.44%
Sole
54.50M
Shared
0.00
None
0.00
SUMMIT HOTEL PPTYS
SOLEShares54.04M
TypePRN
Market value$53.20M
2.40%
Sole
54.04M
Shared
0.00
None
0.00
AUTOZONE INC
SOLEShares11.67K
TypeSH
Market value$50.06M
2.26%
Sole
11.67K
Shared
0.00
None
0.00
VISA INC
SOLEShares142.09K
TypeSH
Market value$48.51M
2.19%
Sole
142.09K
Shared
0.00
None
0.00
DANAHER CORPORATION
SOLEShares241.24K
TypeSH
Market value$47.83M
2.16%
Sole
241.24K
Shared
0.00
None
0.00
HAEMONETICS CORP MASS
SOLEShares48.57M
TypePRN
Market value$47.72M
2.15%
Sole
48.57M
Shared
0.00
None
0.00
JPMORGAN CHASE & CO.
SOLEShares142.29K
TypeSH
Market value$44.88M
2.03%
Sole
142.29K
Shared
0.00
None
0.00
AMERICAN WTR WKS CO INC NEW
SOLEShares298.06K
TypeSH
Market value$41.49M
1.87%
Sole
298.06K
Shared
0.00
None
0.00
AIR PRODS & CHEMS INC
SOLEShares149.06K
TypeSH
Market value$40.65M
1.83%
Sole
149.06K
Shared
0.00
None
0.00
BROWN & BROWN INC
SOLEShares423.59K
TypeSH
Market value$39.73M
1.79%
Sole
423.59K
Shared
0.00
None
0.00
ANALOG DEVICES INC
SOLEShares156.82K
TypeSH
Market value$38.53M
1.74%
Sole
156.82K
Shared
0.00
None
0.00
APPLIED MATLS INC
SOLEShares185.75K
TypeSH
Market value$38.03M
1.72%
Sole
185.75K
Shared
0.00
None
0.00
WASTE CONNECTIONS INC
SOLEShares213.80K
TypeSH
Market value$37.59M
1.70%
Sole
213.80K
Shared
0.00
None
0.00
PROGRESSIVE CORP
SOLEShares150.98K
TypeSH
Market value$37.29M
1.68%
Sole
150.98K
Shared
0.00
None
0.00
ELI LILLY & CO
SOLEShares47.98K
TypeSH
Market value$36.61M
1.65%
Sole
47.98K
Shared
0.00
None
0.00
L3HARRIS TECHNOLOGIES INC
SOLEShares113.33K
TypeSH
Market value$34.61M
1.56%
Sole
113.33K
Shared
0.00
None
0.00
TERRENO RLTY CORP
SOLEShares604.40K
TypeSH
Market value$34.30M
1.55%
Sole
604.40K
Shared
0.00
None
0.00
LAMAR ADVERTISING CO NEW
SOLEShares264.49K
TypeSH
Market value$32.38M
1.46%
Sole
264.49K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
ALPHABET INCSOLE | CAP STK CL C | 439.53K | SH | $107.05M 4.83% | 439.53K | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COM | 191.76K | SH | $99.32M 4.48% | 191.76K | 0.00 | 0.00 |
AMAZON COM INCSOLE | COM | 354.20K | SH | $77.77M 3.51% | 354.20K | 0.00 | 0.00 |
BROADCOM INCSOLE | COM | 211.37K | SH | $69.73M 3.15% | 211.37K | 0.00 | 0.00 |
AIRBNB INCSOLE | NOTE 3/1 | 70.75M | PRN | $69.33M 3.13% | 70.75M | 0.00 | 0.00 |
CABLE ONE INCSOLE | NOTE 3/1 | 70.31M | PRN | $68.65M 3.10% | 70.31M | 0.00 | 0.00 |
FIVERR INTL LTDSOLE | NOTE 11/0 | 59M | PRN | $59.01M 2.66% | 59M | 0.00 | 0.00 |
DEXCOM INCSOLE | NOTE 0.250%11/1 | 54.50M | PRN | $54.13M 2.44% | 54.50M | 0.00 | 0.00 |
SUMMIT HOTEL PPTYSSOLE | NOTE 1.500% 2/1 | 54.04M | PRN | $53.20M 2.40% | 54.04M | 0.00 | 0.00 |
AUTOZONE INCSOLE | COM | 11.67K | SH | $50.06M 2.26% | 11.67K | 0.00 | 0.00 |
VISA INCSOLE | COM CL A | 142.09K | SH | $48.51M 2.19% | 142.09K | 0.00 | 0.00 |
DANAHER CORPORATIONSOLE | COM | 241.24K | SH | $47.83M 2.16% | 241.24K | 0.00 | 0.00 |
HAEMONETICS CORP MASSSOLE | NOTE 3/0 | 48.57M | PRN | $47.72M 2.15% | 48.57M | 0.00 | 0.00 |
JPMORGAN CHASE & CO.SOLE | COM | 142.29K | SH | $44.88M 2.03% | 142.29K | 0.00 | 0.00 |
AMERICAN WTR WKS CO INC NEWSOLE | COM | 298.06K | SH | $41.49M 1.87% | 298.06K | 0.00 | 0.00 |
AIR PRODS & CHEMS INCSOLE | COM | 149.06K | SH | $40.65M 1.83% | 149.06K | 0.00 | 0.00 |
BROWN & BROWN INCSOLE | COM | 423.59K | SH | $39.73M 1.79% | 423.59K | 0.00 | 0.00 |
ANALOG DEVICES INCSOLE | COM | 156.82K | SH | $38.53M 1.74% | 156.82K | 0.00 | 0.00 |
APPLIED MATLS INCSOLE | COM | 185.75K | SH | $38.03M 1.72% | 185.75K | 0.00 | 0.00 |
WASTE CONNECTIONS INCSOLE | COM | 213.80K | SH | $37.59M 1.70% | 213.80K | 0.00 | 0.00 |
PROGRESSIVE CORPSOLE | COM | 150.98K | SH | $37.29M 1.68% | 150.98K | 0.00 | 0.00 |
ELI LILLY & COSOLE | COM | 47.98K | SH | $36.61M 1.65% | 47.98K | 0.00 | 0.00 |
L3HARRIS TECHNOLOGIES INCSOLE | COM | 113.33K | SH | $34.61M 1.56% | 113.33K | 0.00 | 0.00 |
TERRENO RLTY CORPSOLE | COM | 604.40K | SH | $34.30M 1.55% | 604.40K | 0.00 | 0.00 |
LAMAR ADVERTISING CO NEWSOLE | CL A | 264.49K | SH | $32.38M 1.46% | 264.49K | 0.00 | 0.00 |
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