Filed: 5/14/2025ACC: 0001085146-25-003082
📋 What this filing means
OSTERWEIS CAPITAL MANAGEMENT INC filed this quarterly 13F‑HR report disclosing 337 equity positions with a total reported market value of $20.26B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
337
Positions
$20.26B
Total AUM (reported)
536.48M
Total Shares
Allocation by class
COM$11.92B58.9%
NOTE 3/1$1.36B6.7%
CL A$963.52M4.8%
NOTE 1.500% 5/1$848.98M4.2%
CAP STK CL C$755.77M3.7%
COM CL A$534.62M2.6%
NOTE 8/1$510.34M2.5%
Portfolio Concentration
Top 3$2.37B11.7%
4–10$3.88B19.2%
11–25$5.40B26.7%
Rest$8.61B42.5%
Top 3 weight
11.7%
Top 10 weight
30.9%
Voting Authority Distribution
Total shares with voting rights: 536.48M
Sole
Full voting authority
536.48M
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)
Sole337
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings337
Rows:
LYFT INC
SOLEShares84.88M
TypePRN
Market value$848.98M
4.19%
Sole
84.88M
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares204.23K
TypeSH
Market value$766.68M
3.78%
Sole
204.23K
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares483.75K
TypeSH
Market value$755.77M
3.73%
Sole
483.75K
Shared
0.00
None
0.00
AIRBNB INC
SOLEShares70.75M
TypePRN
Market value$677.08M
3.34%
Sole
70.75M
Shared
0.00
None
0.00
CABLE ONE INC
SOLEShares69.31M
TypePRN
Market value$658.40M
3.25%
Sole
69.31M
Shared
0.00
None
0.00
AMAZON COM INC
SOLEShares334.76K
TypeSH
Market value$636.92M
3.14%
Sole
334.76K
Shared
0.00
None
0.00
WIX COM LTD
SOLEShares51.94M
TypePRN
Market value$510.34M
2.52%
Sole
51.94M
Shared
0.00
None
0.00
VISA INC
SOLEShares137.96K
TypeSH
Market value$483.51M
2.39%
Sole
137.96K
Shared
0.00
None
0.00
HAEMONETICS CORP MASS
SOLEShares48.57M
TypePRN
Market value$465.98M
2.30%
Sole
48.57M
Shared
0.00
None
0.00
UNITEDHEALTH GROUP INC
SOLEShares85.56K
TypeSH
Market value$448.14M
2.21%
Sole
85.56K
Shared
0.00
None
0.00
AUTOZONE INC
SOLEShares11.58K
TypeSH
Market value$441.37M
2.18%
Sole
11.58K
Shared
0.00
None
0.00
AMERICAN WTR WKS CO INC NEW
SOLEShares293.21K
TypeSH
Market value$432.54M
2.13%
Sole
293.21K
Shared
0.00
None
0.00
WASTE CONNECTIONS INC
SOLEShares209.22K
TypeSH
Market value$408.39M
2.02%
Sole
209.22K
Shared
0.00
None
0.00
THERMO FISHER SCIENTIFIC INC
SOLEShares77.45K
TypeSH
Market value$385.42M
1.90%
Sole
77.45K
Shared
0.00
None
0.00
BROWN & BROWN INC
SOLEShares300.98K
TypeSH
Market value$374.42M
1.85%
Sole
300.98K
Shared
0.00
None
0.00
EASTGROUP PPTYS INC
SOLEShares212.51K
TypeSH
Market value$374.33M
1.85%
Sole
212.51K
Shared
0.00
None
0.00
PROGRESSIVE CORP
SOLEShares130.75K
TypeSH
Market value$370.03M
1.83%
Sole
130.75K
Shared
0.00
None
0.00
NVIDIA CORPORATION
SOLEShares339.12K
TypeSH
Market value$367.54M
1.81%
Sole
339.12K
Shared
0.00
None
0.00
LENDINGTREE INC
SOLEShares34.64M
TypePRN
Market value$341.66M
1.69%
Sole
34.64M
Shared
0.00
None
0.00
JPMORGAN CHASE & CO.
SOLEShares138.42K
TypeSH
Market value$339.53M
1.68%
Sole
138.42K
Shared
0.00
None
0.00
ANALOG DEVICES INC
SOLEShares160.14K
TypeSH
Market value$322.96M
1.59%
Sole
160.14K
Shared
0.00
None
0.00
AIR PRODS & CHEMS INC
SOLEShares106.19K
TypeSH
Market value$313.18M
1.55%
Sole
106.19K
Shared
0.00
None
0.00
ROSS STORES INC
SOLEShares244.25K
TypeSH
Market value$312.12M
1.54%
Sole
244.25K
Shared
0.00
None
0.00
SALESFORCE INC
SOLEShares115.61K
TypeSH
Market value$310.26M
1.53%
Sole
115.61K
Shared
0.00
None
0.00
KEYSIGHT TECHNOLOGIES INC
SOLEShares204.66K
TypeSH
Market value$306.52M
1.51%
Sole
204.66K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
LYFT INCSOLE | NOTE 1.500% 5/1 | 84.88M | PRN | $848.98M 4.19% | 84.88M | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COM | 204.23K | SH | $766.68M 3.78% | 204.23K | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL C | 483.75K | SH | $755.77M 3.73% | 483.75K | 0.00 | 0.00 |
AIRBNB INCSOLE | NOTE 3/1 | 70.75M | PRN | $677.08M 3.34% | 70.75M | 0.00 | 0.00 |
CABLE ONE INCSOLE | NOTE 3/1 | 69.31M | PRN | $658.40M 3.25% | 69.31M | 0.00 | 0.00 |
AMAZON COM INCSOLE | COM | 334.76K | SH | $636.92M 3.14% | 334.76K | 0.00 | 0.00 |
WIX COM LTDSOLE | NOTE 8/1 | 51.94M | PRN | $510.34M 2.52% | 51.94M | 0.00 | 0.00 |
VISA INCSOLE | COM CL A | 137.96K | SH | $483.51M 2.39% | 137.96K | 0.00 | 0.00 |
HAEMONETICS CORP MASSSOLE | NOTE 3/0 | 48.57M | PRN | $465.98M 2.30% | 48.57M | 0.00 | 0.00 |
UNITEDHEALTH GROUP INCSOLE | COM | 85.56K | SH | $448.14M 2.21% | 85.56K | 0.00 | 0.00 |
AUTOZONE INCSOLE | COM | 11.58K | SH | $441.37M 2.18% | 11.58K | 0.00 | 0.00 |
AMERICAN WTR WKS CO INC NEWSOLE | COM | 293.21K | SH | $432.54M 2.13% | 293.21K | 0.00 | 0.00 |
WASTE CONNECTIONS INCSOLE | COM | 209.22K | SH | $408.39M 2.02% | 209.22K | 0.00 | 0.00 |
THERMO FISHER SCIENTIFIC INCSOLE | COM | 77.45K | SH | $385.42M 1.90% | 77.45K | 0.00 | 0.00 |
BROWN & BROWN INCSOLE | COM | 300.98K | SH | $374.42M 1.85% | 300.98K | 0.00 | 0.00 |
EASTGROUP PPTYS INCSOLE | COM | 212.51K | SH | $374.33M 1.85% | 212.51K | 0.00 | 0.00 |
PROGRESSIVE CORPSOLE | COM | 130.75K | SH | $370.03M 1.83% | 130.75K | 0.00 | 0.00 |
NVIDIA CORPORATIONSOLE | COM | 339.12K | SH | $367.54M 1.81% | 339.12K | 0.00 | 0.00 |
LENDINGTREE INCSOLE | NOTE 0.500% 7/1 | 34.64M | PRN | $341.66M 1.69% | 34.64M | 0.00 | 0.00 |
JPMORGAN CHASE & CO.SOLE | COM | 138.42K | SH | $339.53M 1.68% | 138.42K | 0.00 | 0.00 |
ANALOG DEVICES INCSOLE | COM | 160.14K | SH | $322.96M 1.59% | 160.14K | 0.00 | 0.00 |
AIR PRODS & CHEMS INCSOLE | COM | 106.19K | SH | $313.18M 1.55% | 106.19K | 0.00 | 0.00 |
ROSS STORES INCSOLE | COM | 244.25K | SH | $312.12M 1.54% | 244.25K | 0.00 | 0.00 |
SALESFORCE INCSOLE | COM | 115.61K | SH | $310.26M 1.53% | 115.61K | 0.00 | 0.00 |
KEYSIGHT TECHNOLOGIES INCSOLE | COM | 204.66K | SH | $306.52M 1.51% | 204.66K | 0.00 | 0.00 |
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