Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.
Reported portfolio value by quarter (53 quarters reported)
$428M in Q2 2013 → $3.33B now. Hover for any quarter.
As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.
| Holding | % of portfolio | Activity | Shares | Value |
|---|---|---|---|---|
| Vicor Corp | 6.0% | Added 0.4% | 524,000 | $199M |
| Arteris Inc | 5.7% | Trimmed 0.6% | 3,927,500 | $191M |
| Vishay Intertechnology Inc | 4.9% | Added 4.0% | 3,035,610 | $163M |
| Pdf Solutions Inc | 4.4% | Added 2.1% | 2,065,000 | $146M |
| Nlight Inc | 4.2% | Added 3.6% | 1,992,740 | $139M |
| Vertiv Holdings Co | 2.9% | Added 0.2% | 285,750 | $95.7M |
| Vishay Precision Group Inc | 2.7% | Trimmed 3.4% | 599,000 | $89.8M |
| Formfactor Inc | 2.6% | Trimmed 9.3% | 547,500 | $87.6M |
| Ceco Environmental Corp | 2.6% | Added 147% | 957,500 | $86.9M |
| OD Oil Dri Corp Amer | 2.1% | Added 1.3% | 686,000 | $70.1M |
| Thredup Inc | 2.1% | Added 9.7% | 10,175,000 | $69.7M |
| LE Lincoln Edl Svcs Corp | 2.0% | Added 3.7% | 1,325,000 | $66.1M |
| VI Veeco Instrs Inc Del | 1.9% | Trimmed 3.9% | 845,850 | $64.1M |
| TT Tetra Technologies Inc Del | 1.9% | Added 67% | 5,651,500 | $64M |
| Super Micro Computer Inc | 1.6% | Added 15% | 1,858,500 | $54.5M |
| EG Elmet Group Co (the) | 1.6% | New | 2,639,416 | $52.1M |
| Mks Inc. | 1.5% | Trimmed 6.5% | 112,250 | $49.9M |
| UT Universal Technical Inst Inc | 1.5% | Added 9.7% | 1,130,000 | $48.3M |
| Nova Ltd | 1.4% | Trimmed 3.8% | 88,650 | $48.1M |
| Coherent Corp | 1.1% | Trimmed 12% | 92,500 | $36.5M |
| Kla Corp | 0.9% | Added 900% | 102,500 | $30.9M |
| CI Cra Intl Inc | 0.9% | Added 54% | 215,506 | $30.7M |
| Genius Sports Limited | 0.9% | Added 23% | 4,925,000 | $29.8M |
| Viasat Inc | 0.9% | Unchanged | 330,600 | $29.7M |
| PD Parsons Corp Del | 0.9% | Added 36% | 555,000 | $29.1M |
| Ambiq Micro Inc | 0.9% | Added 62% | 323,700 | $28.6M |
| Centuri Holdings Inc | 0.9% | Added 15% | 942,628 | $28.5M |
| Bruker Corp | 0.8% | Added 8.2% | 459,250 | $27.6M |
| Arlo Technologies Inc | 0.8% | Added 13% | 1,995,000 | $26.9M |
| NE Nvent Elec PLC | 0.8% | Unchanged | 154,500 | $26.2M |
| Select Water Solutions Inc | 0.8% | Added 13% | 1,300,000 | $26M |
| Gorman Rupp Co | 0.8% | Unchanged | 272,500 | $25M |
| GH Generac Hldgs Inc | 0.7% | Added 13% | 82,000 | $24M |
| Astronics Corp | 0.7% | Unchanged | 272,500 | $22.1M |
| Akamai Technologies Inc | 0.7% | Added 2.8% | 183,500 | $21.7M |
| Badger Meter Inc | 0.6% | Added 383% | 145,000 | $21.5M |
| Tennant Co | 0.6% | Added 5.9% | 242,500 | $21.2M |
| EC Everus Constr Group | 0.6% | Unchanged | 126,500 | $21M |
| Clean Harbors Inc | 0.6% | Added 1.8% | 70,106 | $20.9M |
| Asure Software Inc | 0.6% | Added 1.1% | 2,635,000 | $20.9M |
| Aspen Aerogels Inc | 0.6% | Trimmed 28% | 3,260,800 | $20.7M |
| MS Matrix Svc Co | 0.6% | Unchanged | 1,435,000 | $19.7M |
| Myr Group Inc | 0.6% | Added 1.0% | 39,000 | $19.5M |
| Photronics Inc | 0.6% | Trimmed 3.2% | 585,500 | $19M |
| Lantronix Inc | 0.6% | New | 3,150,000 | $18.5M |
| Entegris Inc | 0.5% | Trimmed 13% | 101,500 | $18.3M |
| ET Evolv Technologies Hldngs In | 0.5% | Added 146% | 3,075,000 | $17.8M |
| Bwx Technologies Inc | 0.5% | Added 48% | 87,500 | $17M |
| SA Solstice Advanced Matls Inc | 0.5% | Unchanged | 187,500 | $16.6M |
| FE Franklin Elec Inc | 0.5% | New | 154,200 | $16.5M |
| Lightpath Technologies Inc | 0.5% | Added 91% | 1,010,000 | $16.5M |
| BS Bentley Sys Inc | 0.5% | Added 152% | 542,300 | $16.2M |
| Unisys Corp | 0.5% | Unchanged | 4,428,000 | $16.2M |
| UM Unusual Machs Inc | 0.5% | Added 48% | 718,500 | $16M |
| 908 Devices Inc | 0.5% | Added 47% | 1,820,620 | $15.8M |
| HI Huntington Ingalls Inds Inc | 0.5% | Added 2.3% | 56,500 | $15.8M |
| Labcorp Holdings Inc | 0.5% | Unchanged | 56,313 | $15.8M |
| Jacobs Solutions Inc | 0.5% | Added 30% | 124,500 | $15.7M |
| ES Energy Services Of Amer Corp | 0.5% | Unchanged | 800,000 | $15.5M |
| AB Atlanta Braves Hldgs Inc | 0.4% | Added 98% | 287,100 | $14.9M |
Showing top 60 of 176 positions.
What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.
quarter ended June 30, 2026 · filed August 14, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| EG Elmet Group Co (the) | New | +2,639,416 | +$52.1M | 1.6% |
| Ceco Environmental Corp | Added | +570,000 | +$51.7M | 2.6% |
| TG Thermon Group Hldgs Inc | Exited | −632,500 | −$31.9M | — |
| Kla Corp | Added | +92,250 | +$27.8M | 0.9% |
| TT Tetra Technologies Inc Del | Added | +2,276,500 | +$25.8M | 1.9% |
| Lantronix Inc | New | +3,150,000 | +$18.5M | 0.6% |
| Badger Meter Inc | Added | +115,000 | +$17.1M | 0.6% |
| FE Franklin Elec Inc | New | +154,200 | +$16.5M | 0.5% |
| Ambiq Micro Inc | Added | +123,700 | +$10.9M | 0.9% |
| Adtran Holdings Inc | Trimmed | −778,500 | −$10.8M | 0.2% |
Showing the 10 largest of 129 changes.
quarter ended March 31, 2026 · filed May 15, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Tennant Co | Added | +161,500 | +$10.7M | 0.8% |
| Thredup Inc | Added | +3,200,000 | +$10.5M | 1.6% |
| Vishay Intertechnology Inc | Added | +545,000 | +$9.81M | 2.7% |
| Ttm Technologies Inc | Trimmed | −97,750 | −$9.52M | 0.4% |
| Arteris Inc | Added | +541,000 | +$8.89M | 3.3% |
| Formfactor Inc | Trimmed | −91,000 | −$8.83M | 3.0% |
| Entegris Inc | Trimmed | −74,400 | −$8.72M | 0.7% |
| TT Tetra Technologies Inc Del | Added | +1,000,000 | +$8.52M | 1.5% |
| Nova Ltd | Trimmed | −19,600 | −$8.51M | 2.0% |
| UT Universal Technical Inst Inc | Added | +222,500 | +$8.03M | 1.9% |
Showing the 10 largest of 122 changes.
quarter ended December 31, 2025 · filed February 17, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| SA Solstice Advanced Matls Inc | New | +175,000 | +$8.5M | 0.5% |
| TT Tetra Technologies Inc Del | Added | +850,000 | +$7.96M | 1.4% |
| Vishay Intertechnology Inc | Added | +545,650 | +$7.91M | 2.2% |
| Vicor Corp | Trimmed | −71,675 | −$7.86M | 3.9% |
| Klaviyo Inc | Trimmed | −240,000 | −$7.79M | 0.1% |
| Ceco Environmental Corp | Added | +123,500 | +$7.39M | 1.1% |
| UT Universal Technical Inst Inc | Added | +257,500 | +$6.73M | 1.3% |
| LE Lincoln Edl Svcs Corp | Added | +260,000 | +$6.28M | 1.7% |
| Vital Farms Inc | Added | +162,500 | +$5.19M | 1.4% |
| Coherent Corp | Trimmed | −28,000 | −$5.17M | 1.6% |
Showing the 10 largest of 123 changes.
quarter ended September 30, 2025 · filed November 14, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Faro Technologies Inc | Exited | −818,375 | −$35.9M | — |
| Ceco Environmental Corp | New | +175,000 | +$8.96M | 0.6% |
| UT Universal Technical Inst Inc | Added | +239,000 | +$7.78M | 1.2% |
| Ttm Technologies Inc | Trimmed | −106,500 | −$6.13M | 0.9% |
| LE Lincoln Edl Svcs Corp | Added | +255,500 | +$6M | 1.4% |
| Bruker Corp | Added | +179,500 | +$5.83M | 0.9% |
| Box Inc | New | +160,000 | +$5.16M | 0.4% |
| Select Water Solutions Inc | Added | +475,000 | +$5.08M | 0.4% |
| Vishay Intertechnology Inc | Added | +304,350 | +$4.66M | 2.0% |
| TT Tetra Technologies Inc Del | Added | +775,000 | +$4.46M | 0.6% |
Showing the 10 largest of 116 changes.
quarter ended June 30, 2025 · filed August 14, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Nlight Inc | Trimmed | −722,750 | −$14.2M | 2.9% |
| Calix Inc | Trimmed | −172,000 | −$9.15M | 0.2% |
| Faro Technologies Inc | Trimmed | −200,000 | −$8.78M | 2.9% |
| LS Logility Supply Chain Soluti | Exited | −460,000 | −$6.56M | — |
| Ttm Technologies Inc | Trimmed | −152,750 | −$6.24M | 1.1% |
| Thredup Inc | Trimmed | −475,000 | −$3.56M | 3.5% |
| Vicor Corp | Trimmed | −68,500 | −$3.11M | 2.6% |
| Nova Ltd | Trimmed | −11,000 | −$3.03M | 2.8% |
| Vail Resorts Inc | Added | +17,000 | +$2.67M | 0.5% |
| Badger Meter Inc | Trimmed | −8,500 | −$2.08M | 0.1% |
Showing the 10 largest of 107 changes.
quarter ended March 31, 2025 · filed May 15, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| AE Altair Engr Inc | Exited | −225,000 | −$24.5M | — |
| LS Logility Supply Chain Soluti | Trimmed | −1,521,900 | −$21.7M | 0.6% |
| OD Oil Dri Corp Amer | Added | +281,500 | +$12.9M | 2.4% |
| AR Adams Res & Energy Inc | Exited | −190,000 | −$7.17M | — |
| Nova Ltd | Trimmed | −29,000 | −$5.35M | 2.4% |
| Vicor Corp | Trimmed | −100,000 | −$4.68M | 3.4% |
| Camtek Ltd | New | +47,500 | +$2.78M | 0.3% |
| Luna Innovations Inc | Exited | −1,175,000 | −$2.54M | — |
| Calix Inc | Trimmed | −63,000 | −$2.23M | 0.7% |
| Aspen Aerogels Inc | Added | +347,500 | +$2.22M | 1.6% |
Showing the 10 largest of 100 changes.
quarter ended December 31, 2024 · filed February 14, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Super Micro Computer Inc | Exited | −130,750 | −$54.4M | — |
| Super Micro Computer Inc | New | +1,410,000 | +$43M | 3.3% |
| EC Everus Constr Group | New | +115,250 | +$7.58M | 0.6% |
| Zuora Inc | Exited | −825,000 | −$7.11M | — |
| Sitime Corp | Trimmed | −21,250 | −$4.56M | 0.4% |
| Nlight Inc | Added | +314,375 | +$3.3M | 2.1% |
| Rapid7 Inc | New | +75,000 | +$3.02M | 0.2% |
| Vishay Intertechnology Inc | Added | +154,100 | +$2.61M | 1.8% |
| BS Bentley Sys Inc | Added | +55,500 | +$2.59M | 0.4% |
| Apple Inc | Trimmed | −10,200 | −$2.55M | 0.4% |
Showing the 10 largest of 113 changes.
quarter ended September 30, 2024 · filed November 14, 2024
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Pdf Solutions Inc | Added | +429,550 | +$13.6M | 4.3% |
| Bruker Corp | Added | +100,000 | +$6.91M | 1.2% |
| Vishay Intertechnology Inc | Added | +355,000 | +$6.71M | 1.8% |
| MR Mdu Res Group Inc | Added | +212,500 | +$5.82M | 0.9% |
| LH Lumentum Hldgs Inc | Trimmed | −85,000 | −$5.39M | 0.1% |
| MS Matrix Svc Co | Added | +395,000 | +$4.55M | 1.3% |
| Asure Software Inc | Added | +502,500 | +$4.55M | 1.7% |
| Akamai Technologies Inc | Added | +45,000 | +$4.54M | 1.4% |
| AS Amer Software Inc | Added | +375,000 | +$4.2M | 1.6% |
| Markel Group Inc | Added | +2,300 | +$3.61M | 0.6% |
Showing the 10 largest of 113 changes.
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