Osterweis Opportunity Fund
Open-end / ETFRegistrant
Professionally Managed Portfolios
Class ticker
OSTGX
Net Assets
$382,660,795
Holdings
44
Latest Report
Jun 30, 2026
Net Assets Over Time
Holdings · 44
Export CSV| Holding | Symbol | Balance | Value | % of Fund | Side | Category | Open |
|---|---|---|---|---|---|---|---|
|
Federated Hermes US Treasury C
|
60934N682 | 34,471,748 | $34,471,748 | 9.01% | Long | STIV | |
| Vericel Corp | VCEL | 304,115 | $13,530,076 | 3.54% | Long | EC | |
| Life Time Group Holdings Inc | LTH | 326,945 | $13,352,434 | 3.49% | Long | EC | |
| SPX Technologies Inc | SPXC | 54,208 | $13,290,175 | 3.47% | Long | EC | |
| Novanta Inc | NOVT | 80,270 | $13,023,005 | 3.40% | Long | EC | |
| Cardinal Infrastructure Group | CDNL | 137,020 | $12,907,284 | 3.37% | Long | EC | |
| VSE Corp | VSEC | 54,704 | $12,499,864 | 3.27% | Long | EC | |
| Twilio Inc | TWLO | 57,599 | $11,884,402 | 3.11% | Long | EC | |
| Loar Holdings Inc | LOAR | 144,335 | $11,634,844 | 3.04% | Long | EC | |
| Repligen Corp | RGEN | 84,775 | $11,566,701 | 3.02% | Long | EC | |
| Axos Financial Inc | AX | 118,210 | $11,512,472 | 3.01% | Long | EC | |
| Guardant Health Inc | GH | 74,300 | $11,147,229 | 2.91% | Long | EC | |
| Dutch Bros Inc | BROS | 153,925 | $11,053,354 | 2.89% | Long | EC | |
| DigitalOcean Holdings Inc | DOCN | 69,915 | $10,978,752 | 2.87% | Long | EC | |
| Alignment Healthcare Inc | ALHC | 460,940 | $10,974,981 | 2.87% | Long | EC | |
| AtriCure Inc | ATRC | 353,985 | $9,904,500 | 2.59% | Long | EC | |
| SiTime Corp | SITM | 12,734 | $9,493,961 | 2.48% | Long | EC | |
| Boot Barn Holdings Inc | BOOT | 56,940 | $9,353,534 | 2.44% | Long | EC | |
| Lattice Semiconductor Corp | LSCC | 61,000 | $9,330,560 | 2.44% | Long | EC | |
| Casella Waste Systems Inc | CWST | 93,600 | $9,076,392 | 2.37% | Long | EC | |
| Affirm Holdings Inc | AFRM | 110,260 | $8,991,703 | 2.35% | Long | EC | |
| Twist Bioscience Corp | TWST | 85,150 | $8,760,232 | 2.29% | Long | EC | |
| Transcat Inc | TRNS | 92,770 | $8,606,273 | 2.25% | Long | EC | |
| FirstService Corp | FSV | 58,440 | $8,304,908 | 2.17% | Long | EC | |
|
Kestra Medical Technologies Lt
|
— | 308,020 | $7,836,029 | 2.05% | Long | EC | |
| Semtech Corp | SMTC | 46,120 | $7,464,522 | 1.95% | Long | EC | |
| MACOM Technology Solutions Hol | MTSI | 19,397 | $7,378,037 | 1.93% | Long | EC | |
| Hinge Health Inc | HNGE | 79,000 | $6,557,000 | 1.71% | Long | EC | |
| ServiceTitan Inc | TTAN | 91,980 | $6,503,906 | 1.70% | Long | EC | |
| Nextpower Inc | NXT | 50,020 | $5,959,383 | 1.56% | Long | EC | |
| Navan Inc | NAVN | 224,245 | $5,128,483 | 1.34% | Long | EC | |
| Cogent Biosciences Inc | COGT | 131,530 | $5,090,211 | 1.33% | Long | EC | |
| Waystar Holding Corp | WAY | 214,805 | $4,409,947 | 1.15% | Long | EC | |
| Glaukos Corp | GKOS | 30,955 | $4,326,271 | 1.13% | Long | EC | |
| Dave Inc | DAVE | 11,360 | $4,232,622 | 1.11% | Long | EC | |
| Mayville Engineering Co Inc | MEC | 112,250 | $4,204,885 | 1.10% | Long | EC | |
| Agilysys Inc | AGYS | 40,165 | $4,197,243 | 1.10% | Long | EC | |
| Turning Point Brands Inc | TPB | 48,490 | $4,112,437 | 1.07% | Long | EC | |
| Galaxy Digital Inc | GLXY | 148,365 | $4,056,299 | 1.06% | Long | EC | |
|
Fabrinet
|
— | 6,553 | $3,683,310 | 0.96% | Long | EC | |
| CECO Environmental Corp | CECO | 39,585 | $3,591,943 | 0.94% | Long | EC | |
| Arrowhead Pharmaceuticals Inc | ARWR | 38,470 | $3,135,690 | 0.82% | Long | EC | |
| Procept Biorobotics Corp | PRCT | 127,585 | $2,880,869 | 0.75% | Long | EC | |
| Chime Financial Inc | CHYM | 125,805 | $2,576,486 | 0.67% | Long | EC |