Osterweis Opportunity Fund (OSTGX) is an MF managed by Independent / Boutique. Its largest position is FEDERATED HERMES US TREASURY CASH RESERVES (UTIXX), representing 9.51% of fund assets.
Osterweis Opportunity Fund Portfolio Holdings
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- OSTGX
- Type:
- MF
- Manager:
- Independent / Boutique
- Total Assets:
- —
- Report Date:
- Mar 31, 2026
- Filing Date:
- May 28, 2026
| Holding | Weight | Market Value | Shares |
|---|---|---|---|
|
-
FEDERATED HERMES US TREASURY CASH RESERVES
|
9.51% | $27,342,833.05 | 27,342,833 |
|
-
Life Time Group Holdings, Inc.
|
3.67% | $10,533,001.20 | 390,980 |
|
-
Axos Financial, Inc.
|
3.65% | $10,497,127.85 | 123,365 |
|
-
Guardant Health, Inc.
|
3.61% | $10,363,914.00 | 112,200 |
|
-
VSE CORP
|
3.37% | $9,684,872.40 | 52,521 |
|
-
Vericel Corp
|
3.37% | $9,671,588.80 | 300,640 |
|
-
CECO ENVIRONMENTAL CORP
|
3.35% | $9,613,530.90 | 161,355 |
|
-
Fabrinet
|
3.19% | $9,155,805.12 | 17,556 |
|
-
NOVANTA INC
|
3.12% | $8,952,147.45 | 75,795 |
|
-
CASELLA WASTE SYSTEMS INC
|
3.08% | $8,851,963.80 | 111,570 |
|
-
GLAUKOS Corp
|
2.67% | $7,668,621.80 | 71,230 |
|
-
REPLIGEN CORP
|
2.65% | $7,630,023.20 | 64,760 |
|
-
AtriCure, Inc.
|
2.62% | $7,540,051.05 | 264,285 |
|
-
DigitalOcean Holdings, Inc.
|
2.62% | $7,519,903.70 | 87,665 |
|
-
Twist Bioscience Corp
|
2.61% | $7,508,397.60 | 158,005 |
|
-
Nextpower Inc.
|
2.60% | $7,459,031.25 | 61,875 |
|
-
LATTICE SEMICONDUCTOR CORP
|
2.58% | $7,426,829.40 | 80,065 |
|
-
SPX Technologies, Inc.
|
2.56% | $7,345,795.60 | 36,740 |
|
-
FirstService Corp
|
2.37% | $6,796,944.80 | 48,920 |
|
-
ARTIVION, INC.
|
2.30% | $6,622,434.04 | 180,842 |
|
-
SITIME Corp
|
2.26% | $6,504,667.25 | 18,835 |
|
-
Boot Barn Holdings, Inc.
|
2.26% | $6,497,652.20 | 44,395 |
|
-
MACOM Technology Solutions Holdings, Inc.
|
2.13% | $6,134,017.54 | 27,622 |
|
-
Hinge Health, Inc.
|
2.13% | $6,130,847.20 | 158,995 |
|
-
Palomar Holdings, Inc.
|
2.12% | $6,096,292.50 | 51,015 |
|
-
TWILIO INC
|
2.08% | $5,975,820.90 | 47,495 |
|
-
MODINE MANUFACTURING CO
|
1.95% | $5,609,971.77 | 25,887 |
|
-
TRANSCAT INC
|
1.94% | $5,582,934.50 | 76,010 |
|
-
RAMBUS INC
|
1.91% | $5,477,960.25 | 63,675 |
|
-
Loar Holdings Inc.
|
1.85% | $5,302,762.40 | 92,560 |
|
-
CAVA GROUP, INC.
|
1.78% | $5,118,947.50 | 63,275 |
|
-
Cardinal Infrastructure Group Inc.
|
1.77% | $5,093,883.03 | 128,455 |
|
-
Alignment Healthcare, Inc.
|
1.61% | $4,621,461.70 | 262,285 |
|
-
KESTRA MEDICAL TECHNOLOGIES, LTD.
|
1.55% | $4,465,715.10 | 224,070 |
|
-
Cogent Biosciences, Inc.
|
1.52% | $4,375,158.30 | 113,670 |
|
-
Turning Point Brands, Inc.
|
1.35% | $3,866,494.50 | 44,550 |
|
-
Chime Financial, Inc.
|
1.01% | $2,903,243.65 | 155,005 |
|
-
Fastly, Inc.
|
0.96% | $2,756,631.60 | 94,860 |
|
-
Silicon Motion Technology CORP
|
0.61% | $1,764,637.35 | 15,715 |
|
-
ServiceTitan, Inc.
|
0.51% | $1,452,599.40 | 22,890 |
|
-
Affirm Holdings, Inc.
|
0.49% | $1,401,633.80 | 30,590 |
|
-
PROCEPT BioRobotics Corp
|
0.48% | $1,366,921.55 | 54,655 |
|
-
NeuroPace Inc
|
0.34% | $984,737.75 | 74,885 |
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