As of November 6, 2026, Lattice Semiconductor Corp. is a publicly traded company (Nasdaq: LSCC); its largest reported holder is T. Rowe Price, with 11.8% on Schedule 13G/A of May 15, 2026, then BlackRock (10%) (Schedule 13G/A, May 15, 2026).
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Is Lattice Semiconductor Corp. a real, registered company?
- Lattice Semiconductor Corp files with the SEC under CIK 855658 (its SEC filings).
- Its shares are listed under the ticker LSCC on Nasdaq (SEC company record).
- Incorporated in Delaware; business address in Hillsboro, Oregon, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under LATTICE SEMICONDUCTOR CORP in our court records and SEC 8-K records (as of 2026-11-06).
- Leadership changes: the latest reported is John McCool, Director (Form 8-K filed 2026-10-22). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names T. Rowe Price (filed 2026-07-08).
Who are Lattice Semiconductor Corp.'s owners and officers?
Lattice Semiconductor Corp.: incorporated in Delaware; business address in Hillsboro, Oregon; industry Semiconductors & Related Devices (Form D, 2026-10-22).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-07-08 | T. Rowe Price Investment Management, Inc. | 5.7% |
| Schedule 13G/A, 2026-05-15 | T. Rowe Price Investment Management, Inc. | 11.9% |
| Schedule 13G/A, 2026-05-15 | T. Rowe Price Associates, Inc. | 11.8% |
| Schedule 13G, 2026-04-30 | Vanguard Capital Management | 5.25% |
| Schedule 13G, 2026-04-29 | Vanguard Portfolio Management | 5.43% |
| Schedule 13G/A, 2026-03-27 | The Vanguard Group | 0% |
| Schedule 13G/A, 2026-02-17 | T. Rowe Price Associates, Inc. | 13.2% |
| Schedule 13G/A, 2025-11-14 | T. Rowe Price Investment Management, Inc. | 15.2% |
| Schedule 13G/A, 2025-11-14 | T. Rowe Price Associates, Inc. | 13.2% |
| Schedule 13G/A, 2025-11-06 | Blackrock, Inc. | 10% |
| Schedule 13G/A, 2025-10-17 | Blackrock, Inc. | 10% |
| Schedule 13G/A, 2025-08-14 | T. Rowe Price Investment Management, Inc. | 16.5% |
Questions about who owns Lattice Semiconductor Corp.
Who owns Lattice Semiconductor Corp.?
On this page, 5 holders' latest ownership filings report 5% or more of Lattice Semiconductor Corp.: T. Rowe Price Associates, Inc. (11.8%, Schedule 13G/A, filed 2026-05-15), Blackrock, Inc. (10%, Schedule 13G/A, filed 2025-11-06), T. Rowe Price Investment Management, Inc. (5.7%, Schedule 13G/A, filed 2026-07-08), Vanguard Portfolio Management (5.43%, Schedule 13G, filed 2026-04-29) and Vanguard Capital Management (5.25%, Schedule 13G, filed 2026-04-30).
Who are the largest shareholders of Lattice Semiconductor Corp.?
By the share each holder's latest filing reports, the largest holders of Lattice Semiconductor Corp. on this page are T. Rowe Price Associates, Inc. (11.8%), Blackrock, Inc. (10%) and T. Rowe Price Investment Management, Inc. (5.7%).
When did T. Rowe Price Associates, Inc. buy into Lattice Semiconductor Corp.?
The filings give report dates, not purchase dates. The earliest filing from T. Rowe Price Associates, Inc. on this page is the Schedule 13G/A, filed 2025-11-14, reporting 13.2%; its latest, Schedule 13G/A filed 2026-05-15, reports 11.8%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 12 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-10-22 | John McCool | Director | appointed | 2026-10-21 |
Which insiders own Lattice Semiconductor Corp. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and president: 335,467 shares (0.24% of shares outstanding), held indirectly through a held in trust (Form 4, 2026-11-04).
- , the senior vice president and strategy: 154,225 shares (0.11% of shares outstanding) (Form 4, 2026-10-13).
- , the chief financial officer and senior vice president: 112,936 shares (0.08% of shares outstanding) (Form 4, 2026-10-13).
- , a director: 111,541 shares (0.08% of shares outstanding), 13,143 held directly and 98,398 indirectly (Form 4, 2026-02-13).
- , a director: 102,602 shares (0.07% of shares outstanding), 43,260 held directly and 59,342 indirectly (Form 4, 2026-05-06).
Shares outstanding: 142,225,691 as of 2026-10-29, from the company's latest SEC cover page.
How much has Lattice Semiconductor Corp. raised?
Acquisitions reported on Form 8-K, Item 2.01: acquired AMI TopCo, Inc. (2026-07-27).
Keep reading
More on Lattice Semiconductor Corp. and the records around it.
Lattice Semiconductor Corp. elsewhere on the record
- Acquisition Jul 2026
- Leadership changes Jul 2026
- 5%+ stake filings Jul 2026
Companies that share a holder
- Artisan Partners Asset Management Inc. also filed stake reports on 16 other companies: Ascendis Pharma A/S (Aug 2026), AXALTA COATING SYSTEMS LTD. (Aug 2026), iRhythm Holdings, Inc. (Aug 2026)
- T. Rowe Price Investment Management, Inc. also filed stake reports on 167 other companies: CABALETTA BIO INC (Nov 2026), MADISON SQUARE GARDEN SPORTS CORP (Nov 2026), MSG RANGERS CORP (Nov 2026)
- T. Rowe Price Associates, Inc. also filed stake reports on 191 other companies: PACIFIC BIOSCIENCES OF CALIF (Nov 2026), APARTMENT INVT & MGMT CO -A (Oct 2026), BETA BIONICS INC (Oct 2026)
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