# Trigran Investments, Inc.: Form 13F holdings

An institutional investment manager in NORTHBROOK, IL. SEC CIK 1336800.

- Quarter ended: 2026-06-30
- Filed: 2026-08-12
- Reported value: $545.3m
- Positions: 17 (33 lines in the filing's table; lines for the same security and option type are added together here)
- Compared with: the 13F for the quarter ended 2026-03-31
- Filing: https://www.sec.gov/Archives/edgar/data/1336800/000106299326004214/

## Holdings

As filed, largest first. Reported value is what the manager stated at the quarter end (Jun 30, 2026), in US dollars; it is filing data, not a price. Weight is the share of the total reported value.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| [MATERION CORP (MTRN)](/companies/mtrn.md) | COM | $65.4m | 12.0% | 219,877 |  | Reduced −114,108 |
| [ENPRO INC (NPO)](/companies/npo.md) | COM | $59.0m | 10.8% | 156,472 |  | Reduced −13,571 |
| [SYNAPTICS INC (SYNA)](/companies/syna.md) | COM | $49.1m | 9.0% | 394,893 |  | Reduced −260,818 |
| [EXTREME NETWORKS INC (EXTR)](/companies/extr.md) | COM | $48.8m | 8.9% | 1,507,325 |  | Reduced −1,340,045 |
| [GENTHERM INC (THRM)](/companies/thrm.md) | COM | $39.7m | 7.3% | 1,164,206 |  | Reduced −184,163 |
| [SONOS INC (SONO)](/companies/sono.md) | COM | $38.7m | 7.1% | 2,862,915 |  | Added +373,752 |
| [HAYWARD HLDGS INC (HAYW)](/companies/hayw.md) | COM | $38.7m | 7.1% | 2,237,543 |  | Added +101,440 |
| [RED VIOLET INC (RDVT)](/companies/rdvt.md) | COM | $38.2m | 7.0% | 600,169 |  | Reduced −5,987 |
| [HARMONIC INC (HLIT)](/companies/hlit.md) | COM | $31.0m | 5.7% | 1,897,838 |  | Reduced −1,318,997 |
| [BARRETT BUSINESS SVCS INC (BBSI)](/companies/bbsi.md) | COM | $27.6m | 5.1% | 778,356 |  | Added +59,966 |
| [MIMEDX GROUP INC (MDXG)](/companies/mdxg.md) | COM | $27.6m | 5.1% | 7,173,770 |  | Reduced −1,339 |
| [CORE & MAIN INC (CNM)](/companies/cnm.md) | CL A | $22.8m | 4.2% | 472,746 |  | Added +313,378 |
| [AMPLITUDE INC (AMPL)](/companies/ampl.md) | COM CL A | $17.8m | 3.3% | 2,321,209 |  | Added +1,940,683 |
| [CALIX INC (CALX)](/companies/calx.md) | COM | $16.5m | 3.0% | 442,008 |  | New +442,008 |
| [TECHTARGET INC (TTGT)](/companies/ttgt.md) | COM NEW | $12.6m | 2.3% | 3,487,313 |  | Added +26,105 |
| [MSA SAFETY INC (MSA)](/companies/msa.md) | COM | $10.6m | 1.9% | 60,834 |  | New +60,834 |
| [BERKSHIRE HATHAWAY INC DEL (BRK-B)](/companies/brk-b.md) | CL B NEW | $1.1m | 0.2% | 2,290 |  | Reduced −110 |

## Sold out

Held at the end of the quarter before and not reported this quarter.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| AVANOS MED INC | COM | $0 | 0.0% | 0 |  | Sold out −95,540 |
| [OOMA INC (OOMA)](/companies/ooma.md) | COM | $0 | 0.0% | 0 |  | Sold out −923,264 |

Source: SEC EDGAR, Form 13F-HR, accession 0001062993-26-004214. Last ingested by Listed: Oct 22, 2026, 05:26 ET. No prices; not investment advice.