Filed: 5/15/2026ACC: 0001007524-26-000002
📋 What this filing means
OSTERWEIS CAPITAL MANAGEMENT INC filed this quarterly 13F‑HR report disclosing 229 equity positions with a total reported market value of $1.94B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
229
Positions
$1.94B
Total AUM (reported)
319.04M
Total Shares
Allocation by class
COM$1.27B65.3%
CAP STK CL C$93.85M4.8%
CL A$85.14M4.4%
NOTE 11/1$55.77M2.9%
NOTE 3.250%12/1$48.13M2.5%
COM CL A$46.66M2.4%
NOTE 0.250% 5/1$41.21M2.1%
Portfolio Concentration
Top 3$203.58M10.5%
4–10$332.12M17.1%
11–25$541.56M27.9%
Rest$861.61M44.4%
Top 3 weight
10.5%
Top 10 weight
27.6%
Voting Authority Distribution
Total shares with voting rights: 319.04M
Sole
Full voting authority
319.04M
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)
Sole229
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings229
Rows:
ALPHABET INC
SOLEShares327.16K
TypeSH
Market value$93.85M
4.84%
Sole
327.16K
Shared
0.00
None
0.00
AFFIRM HLDGS INC
SOLEShares57.50M
TypePRN
Market value$55.77M
2.88%
Sole
57.50M
Shared
0.00
None
0.00
AMAZON COM INC
SOLEShares259.06K
TypeSH
Market value$53.96M
2.78%
Sole
259.06K
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares144.67K
TypeSH
Market value$53.55M
2.76%
Sole
144.67K
Shared
0.00
None
0.00
APPLIED MATLS INC
SOLEShares142.13K
TypeSH
Market value$48.58M
2.51%
Sole
142.13K
Shared
0.00
None
0.00
MARRIOTT VACATIONS WORLDWIDE
SOLEShares50M
TypePRN
Market value$48.13M
2.48%
Sole
50M
Shared
0.00
None
0.00
BROADCOM INC
SOLEShares155.09K
TypeSH
Market value$48.00M
2.48%
Sole
155.09K
Shared
0.00
None
0.00
ANALOG DEVICES INC
SOLEShares150.26K
TypeSH
Market value$47.80M
2.47%
Sole
150.26K
Shared
0.00
None
0.00
VISA INC
SOLEShares143.90K
TypeSH
Market value$43.49M
2.24%
Sole
143.90K
Shared
0.00
None
0.00
AUTOZONE INC
SOLEShares12.60K
TypeSH
Market value$42.56M
2.20%
Sole
12.60K
Shared
0.00
None
0.00
JPMORGAN CHASE & CO
SOLEShares141.45K
TypeSH
Market value$41.61M
2.15%
Sole
141.45K
Shared
0.00
None
0.00
JBT MAREL CORPORATION
SOLEShares41.28M
TypePRN
Market value$41.21M
2.13%
Sole
41.28M
Shared
0.00
None
0.00
ELI LILLY & CO
SOLEShares44.79K
TypeSH
Market value$41.19M
2.12%
Sole
44.79K
Shared
0.00
None
0.00
NVIDIA CORPORATION
SOLEShares228.68K
TypeSH
Market value$39.88M
2.06%
Sole
228.68K
Shared
0.00
None
0.00
WASTE CONNECTIONS INC
SOLEShares240.76K
TypeSH
Market value$39.11M
2.02%
Sole
240.76K
Shared
0.00
None
0.00
DANAHER CORP DEL
SOLEShares190.96K
TypeSH
Market value$36.21M
1.87%
Sole
190.96K
Shared
0.00
None
0.00
PENN ENTERTAINMENT INC
SOLEShares35.45M
TypePRN
Market value$35.46M
1.83%
Sole
35.45M
Shared
0.00
None
0.00
Q2 HLDGS INC
SOLEShares35.43M
TypePRN
Market value$35.28M
1.82%
Sole
35.43M
Shared
0.00
None
0.00
AMERICAN WTR WKS CO INC NEW
SOLEShares256.43K
TypeSH
Market value$34.90M
1.80%
Sole
256.43K
Shared
0.00
None
0.00
TERRENO RLTY CORP
SOLEShares555.71K
TypeSH
Market value$34.13M
1.76%
Sole
555.71K
Shared
0.00
None
0.00
AIR PRODUCTS AND CHEMICALS I
SOLEShares114.45K
TypeSH
Market value$33.25M
1.71%
Sole
114.45K
Shared
0.00
None
0.00
PEBBLEBROOK HOTEL TR
SOLEShares33.87M
TypePRN
Market value$33.08M
1.71%
Sole
33.87M
Shared
0.00
None
0.00
US FOODS HLDG CORP
SOLEShares354.08K
TypeSH
Market value$32.65M
1.68%
Sole
354.08K
Shared
0.00
None
0.00
KEYSIGHT TECHNOLOGIES INC
SOLEShares115.39K
TypeSH
Market value$32.58M
1.68%
Sole
115.39K
Shared
0.00
None
0.00
L3HARRIS TECHNOLOGIES INC
SOLEShares89.87K
TypeSH
Market value$31.02M
1.60%
Sole
89.87K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
ALPHABET INCSOLE | CAP STK CL C | 327.16K | SH | $93.85M 4.84% | 327.16K | 0.00 | 0.00 |
AFFIRM HLDGS INCSOLE | NOTE 11/1 | 57.50M | PRN | $55.77M 2.88% | 57.50M | 0.00 | 0.00 |
AMAZON COM INCSOLE | COM | 259.06K | SH | $53.96M 2.78% | 259.06K | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COM | 144.67K | SH | $53.55M 2.76% | 144.67K | 0.00 | 0.00 |
APPLIED MATLS INCSOLE | COM | 142.13K | SH | $48.58M 2.51% | 142.13K | 0.00 | 0.00 |
MARRIOTT VACATIONS WORLDWIDESOLE | NOTE 3.250%12/1 | 50M | PRN | $48.13M 2.48% | 50M | 0.00 | 0.00 |
BROADCOM INCSOLE | COM | 155.09K | SH | $48.00M 2.48% | 155.09K | 0.00 | 0.00 |
ANALOG DEVICES INCSOLE | COM | 150.26K | SH | $47.80M 2.47% | 150.26K | 0.00 | 0.00 |
VISA INCSOLE | COM CL A | 143.90K | SH | $43.49M 2.24% | 143.90K | 0.00 | 0.00 |
AUTOZONE INCSOLE | COM | 12.60K | SH | $42.56M 2.20% | 12.60K | 0.00 | 0.00 |
JPMORGAN CHASE & COSOLE | COM | 141.45K | SH | $41.61M 2.15% | 141.45K | 0.00 | 0.00 |
JBT MAREL CORPORATIONSOLE | NOTE 0.250% 5/1 | 41.28M | PRN | $41.21M 2.13% | 41.28M | 0.00 | 0.00 |
ELI LILLY & COSOLE | COM | 44.79K | SH | $41.19M 2.12% | 44.79K | 0.00 | 0.00 |
NVIDIA CORPORATIONSOLE | COM | 228.68K | SH | $39.88M 2.06% | 228.68K | 0.00 | 0.00 |
WASTE CONNECTIONS INCSOLE | COM | 240.76K | SH | $39.11M 2.02% | 240.76K | 0.00 | 0.00 |
DANAHER CORP DELSOLE | COM | 190.96K | SH | $36.21M 1.87% | 190.96K | 0.00 | 0.00 |
PENN ENTERTAINMENT INCSOLE | NOTE 2.750% 5/1 | 35.45M | PRN | $35.46M 1.83% | 35.45M | 0.00 | 0.00 |
Q2 HLDGS INCSOLE | NOTE 0.750% 6/0 | 35.43M | PRN | $35.28M 1.82% | 35.43M | 0.00 | 0.00 |
AMERICAN WTR WKS CO INC NEWSOLE | COM | 256.43K | SH | $34.90M 1.80% | 256.43K | 0.00 | 0.00 |
TERRENO RLTY CORPSOLE | COM | 555.71K | SH | $34.13M 1.76% | 555.71K | 0.00 | 0.00 |
AIR PRODUCTS AND CHEMICALS ISOLE | COM | 114.45K | SH | $33.25M 1.71% | 114.45K | 0.00 | 0.00 |
PEBBLEBROOK HOTEL TRSOLE | NOTE 1.750%12/1 | 33.87M | PRN | $33.08M 1.71% | 33.87M | 0.00 | 0.00 |
US FOODS HLDG CORPSOLE | COM | 354.08K | SH | $32.65M 1.68% | 354.08K | 0.00 | 0.00 |
KEYSIGHT TECHNOLOGIES INCSOLE | COM | 115.39K | SH | $32.58M 1.68% | 115.39K | 0.00 | 0.00 |
L3HARRIS TECHNOLOGIES INCSOLE | COM | 89.87K | SH | $31.02M 1.60% | 89.87K | 0.00 | 0.00 |
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