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OCM

Osterweis Capital Management Portfolio holdings

AUM $2.12B
1-Year Est. Return 32.36%
This Fund
S&P 500
This Quarter Est. Return
+21.23%
1 Year Est. Return
+32.36%
3 Year Est. Return
+93.72%
5 Year Est. Return
+113.14%
10 Year Est. Return
+557.09%
AUM
$2.12B
AUM Growth
+$182M
Cap. Flow
-$242M
Cap. Flow %
-11.41%
Top 10 Hldgs %
29.74%
Holding
242
New
14
Increased
25
Reduced
84
Closed
11

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$55.6M
2
AJG icon
Arthur J. Gallagher & Co
AJG
+$19.5M
3
BSX icon
Boston Scientific
BSX
+$14.5M
4
BROS icon
Dutch Bros
BROS
+$11.6M
5
SNPS icon
Synopsys
SNPS
+$11.1M

Top Sells

Rank Stock Value
1
AMAT icon
Applied Materials
AMAT
+$28.1M
2
BRO icon
Brown & Brown
BRO
+$25.9M
3
KEYS icon
Keysight
KEYS
+$24.9M
4
LHX icon
L3Harris
LHX
+$21.5M
5
PSA icon
Public Storage
PSA
+$17.7M

Sector Composition

Rank Sector Weight
1 Technology 25.57%
2 Industrials 14.09%
3 Healthcare 13.95%
4 Miscellaneous 12.58%
5 Financials 9.75%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
FSV icon
51
FirstService
FSV
$6.18B
$13M 0.61%
91,739
+26,855
+41% +$3.73M
NVS icon
52
Novartis
NVS
$292B
– –
0
– –
AFRM icon
53
Affirm
AFRM
$26.2B
$12.9M 0.61%
157,605
+96,845
+159% +$6.33M
SITM icon
54
SiTime
SITM
$16.8B
$12.4M 0.59%
16,670
-8,467
-34% -$5.34M
TRNS icon
55
Transcat
TRNS
$804M
$12.3M 0.58%
132,797
+32,335
+32% +$2.64M
LSCC icon
56
Lattice Semiconductor
LSCC
$16.2B
$12.2M 0.58%
79,865
-26,045
-25% -$3.36M
CWST icon
57
Casella Waste Systems
CWST
$5.96B
$11.9M 0.56%
123,055
-25,215
-17% -$2.15M
TWST icon
58
Twist Bioscience
TWST
$8.87B
$11.5M 0.54%
111,458
-99,700
-47% -$6.49M
MU icon
59
Micron Technology
MU
$1.05T
$10.3M 0.49%
8,964
+8,774
+4,618% +$6.58M
SMTC icon
60
Semtech
SMTC
$12.2B
$9.78M 0.46%
+60,445
New +$7.9M
MTSI icon
61
MACOM Technology Solutions
MTSI
$20.3B
$9.66M 0.46%
25,396
-11,147
-31% -$3.7M
TTAN
62
ServiceTitan Inc
TTAN
$9.53B
$9.59M 0.45%
135,580
+76,100
+128% +$4.9M
ICE icon
63
Intercontinental Exchange
ICE
$91.1B
$9.45M 0.45%
76,744
-100,154
-57% -$15M
NXT icon
64
Nextpower Inc. Common Stock
NXT
$13B
$8.9M 0.42%
74,675
-7,660
-9% -$945K
HNGE
65
Hinge Health
HNGE
$7.05B
$8.59M 0.41%
103,545
-106,725
-51% -$5.79M
NAVN
66
Navan Inc
NAVN
$7.25B
$7.72M 0.36%
+337,640
New +$6.18M
BAC icon
67
Bank of America
BAC
$436B
$7.31M 0.34%
+128,256
New +$6.82M
LH icon
68
Labcorp
LH
$27.2B
$7.07M 0.33%
25,240
-51,743
-67% -$13.6M
PSA icon
69
Public Storage
PSA
$58.5B
$6.67M 0.31%
20,963
-57,844
-73% -$17.7M
COGT icon
70
Cogent Biosciences
COGT
$6.02B
$6.66M 0.31%
172,085
+21,275
+14% +$744K
DAVE icon
71
Dave Inc
DAVE
$4.83B
$6.58M 0.31%
+17,672
New +$4.59M
MEC icon
72
Mayville Engineering Co
MEC
$493M
$6.54M 0.31%
+174,600
New +$4.67M
AGYS icon
73
Agilysys
AGYS
$3.32B
$6.52M 0.31%
+62,440
New +$4.83M
LHX icon
74
L3Harris
LHX
$48.9B
$6.47M 0.31%
22,267
-67,601
-75% -$21.5M
TPB icon
75
Turning Point Brands
TPB
$1.68B
$6.45M 0.3%
76,076
+17,201
+29% +$1.43M
1 2
3
4 5

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Osterweis Capital Management's Q2 2026 Portfolio in Review

As of Q2 2026, Osterweis Capital Management held 242 positions worth $2.12B, up 9.4% from $1.94B the previous quarter. Its ten largest holdings account for 30% of the portfolio.

Osterweis Capital Management withdrew a net $242M in Q2 2026, closing 11 positions and reducing 84 holdings. Its most notable exit was Brown & Brown, an estimated $25.9M position sold in full.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 21% a quarter earlier, followed by Industrials and Healthcare.

Against the trend, Osterweis Capital Management opened a new position in Arthur J. Gallagher & Co worth $21.1M.

  • Osterweis Capital Management's largest Q2 2026 buy was Arthur J. Gallagher & Co: 91,965 shares worth $21.1M.
  • Osterweis Capital Management added most to Apple in Q2 2026, an estimated $55.6M increase.
  • Osterweis Capital Management's biggest Q2 2026 reduction was Applied Materials, cutting an estimated $28.1M.
  • Osterweis Capital Management fully exited Brown & Brown in Q2 2026, selling an estimated $25.9M.
  • Osterweis Capital Management's ten largest holdings make up 30% of its $2.12B portfolio in Q2 2026.
  • Osterweis Capital Management opened 14 new positions and closed 11 in Q2 2026.
  • Osterweis Capital Management's portfolio value rose 9.4% quarter-over-quarter to $2.12B.

Based on Osterweis Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.