Trigran Investments, Inc.
In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 14, 2024), Trigran Investments, Inc. reported 20 stock positions worth $1.0 billion. Its top holding was Sonos (SONO) at 11.2% of the portfolio, followed by Synaptics (SYNA, 10.7%) and Gentherm (THRM, 10.3%). Compared with Q4 2023, it opened 3 new positions, sold out of 1, added to 8 and reduced 7. The biggest buy was a new position in Calix (CALX) and the biggest sale an exit from Energy Recovery (ERII).
- Most Recent 13F
- Q2 2026
- Location
- NORTHBROOK, IL
- CIK
- 0001336800
- Portfolio Value
- $1.0B (Q1 2024)
- SEC Filing
- 0001062993-24-010159 ↗ filed May 14, 2024
Holdings Value
Holdings 20 stocks · $1.0B
| SONO Sonos Inc. | 11.21% | 6,067,705 | $115.7M | Reduce -9.1% |
| SYNA Synaptics Inc. | 10.75% | 1,136,513 | $110.9M | Add +2.4% |
| THRM Gentherm Inc. | 10.27% | 1,839,822 | $105.9M | Reduce -2.5% |
| HLIT Harmonic Inc. | 8.99% | 6,901,923 | $92.8M | Reduce -19.4% |
| MTRN Materion Corp. | 8.89% | 696,207 | $91.7M | Add +1.2% |
| TTGT Techtarget Holdings Inc. | 8.64% | 2,694,108 | $89.1M | Reduce -1.2% |
| SRDX Surmodics Inc. | 6.71% | 2,358,300 | $69.2M | No change |
| SSTK Shutterstock Inc. | 5.92% | 1,333,156 | $61.1M | Add +9.8% |
| ANIK Anika Therapeutics Inc. | 5.10% | 2,072,424 | $52.6M | Reduce -3.1% |
| HCKT The Hackett Group Inc. | 4.31% | 1,829,511 | $44.5M | Reduce -0.4% |
| RDVT Red Violet Inc. | 4.09% | 2,159,480 | $42.2M | Add +2.2% |
| OOMA Ooma Inc. | 3.38% | 4,084,732 | $34.8M | Add +1.2% |
| CALX Calix Inc. | 2.73% | 850,598 | $28.2M | New |
| MDXG Mimedx Group Inc. | 2.43% | 3,256,949 | $25.1M | New |
| NPO Enpro Inc. | 1.75% | 106,933 | $18.0M | Add +5.8% |
| EXTR Extreme Networks Inc. | 1.73% | 1,547,142 | $17.9M | New |
| ATEN A10 Networks Inc. | 1.14% | 862,050 | $11.8M | Add +16.8% |
| NEOG Neogen Corp. | 1.12% | 730,345 | $11.5M | Add +21.9% |
| BCOV Brightcove | 0.70% | 3,721,468 | $7.2M | Reduce -17.3% |
| BRK.B Berkshire Hathaway Inc. Class B | 0.13% | 3,150 | $1.3M | No change |
Portfolio Sells Q4 2023 → Q1 2024
| ERII Energy Recovery Inc. | Sold out | 0.00% | −2.44 |
| HLIT Harmonic Inc. | Reduce -19.4% | 8.99% | −1.83 |
| TTGT Techtarget Holdings Inc. | Reduce -1.2% | 8.64% | −0.57 |
| BCOV Brightcove | Reduce -17.3% | 0.70% | −0.43 |
| SONO Sonos Inc. | Reduce -9.1% | 11.21% | +0.12 |
| HCKT The Hackett Group Inc. | Reduce -0.4% | 4.31% | +0.25 |
| ANIK Anika Therapeutics Inc. | Reduce -3.1% | 5.10% | +0.40 |
| THRM Gentherm Inc. | Reduce -2.5% | 10.27% | +0.69 |
Portfolio Buys Q4 2023 → Q1 2024
| CALX Calix Inc. | New | 2.73% | +2.73 |
| MDXG Mimedx Group Inc. | New | 2.43% | +2.43 |
| EXTR Extreme Networks Inc. | New | 1.73% | +1.73 |
| SSTK Shutterstock Inc. | Add +9.8% | 5.92% | +0.24 |
| MTRN Materion Corp. | Add +1.2% | 8.89% | +0.22 |
| NPO Enpro Inc. | Add +5.8% | 1.75% | +0.21 |
| ATEN A10 Networks Inc. | Add +16.8% | 1.14% | +0.20 |
| RDVT Red Violet Inc. | Add +2.2% | 4.09% | +0.00 |
| NEOG Neogen Corp. | Add +21.9% | 1.12% | −0.05 |
| OOMA Ooma Inc. | Add +1.2% | 3.38% | −0.82 |
| SYNA Synaptics Inc. | Add +2.4% | 10.75% | −1.52 |
Options Activity Q4 2023 → Q1 2024
| SONO Sonos Inc. | call | Sold out | 400,000 | $6.9Mbefore exit |
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 17 | $545.3M | MTRN, NPO, SYNA, EXTR, THRM |
| Q1 2026 | 17 | $418.2M | MTRN, SYNA, EXTR, NPO, THRM |
| Q4 2025 | 17 | $507.6M | MTRN, THRM, SYNA, SONO, MDXG |
| Q3 2025 | 17 | $551.6M | MTRN, THRM, MDXG, SONO, EXTR |
| Q2 2025Amended | 16 | $575.9M | MTRN, THRM, SYNA, MDXG, SONO |
| Q1 2025 | 16 | $679.6M | SYNA, TTGT, MTRN, THRM, MDXG |
| Q4 2024 | 18 | $869.5M | SYNA, THRM, TTGT, MDXG, MTRN |
| Q3 2024 | 20 | $913.5M | TTGT, THRM, HLIT, MTRN, SYNA |
| Q2 2024 | 20 | $956.3M | TTGT, THRM, SYNA, MTRN, HLIT |
| Q1 2024 | 20 | $1.0B | SONO, SYNA, THRM, HLIT, MTRN |