Who owns DATA I/O CORP, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
LYTTON LAURENCE W: 9.9% · 1,026,424 shares — Lytton-Kambara Foundation: 5.8% · 590,374 shares — AWL Family LLC: 2.9% · 300,208 shares
Renaissance Technologies LLC: 4.7% · 437,637 shares — Renaissance Technologies Holdings Corporation: 4.7% · 437,637 shares
1 more 5% stakes behind a free account
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Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of DATA I/O CORP they hold. Together these 42 managers report 33.30% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| Kanen Wealth Management LLC | $3.29M | 839,421 | 0.80% | 8.07% | June 30, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | $1.55M | 392,443 | 0.00% | 3.78% | June 30, 2026 |
40 more institutional holders behind a free account
See every manager reporting DATA I/O CORP, how much of the company they hold, and how big the position is inside their own portfolio.
Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 22 funds hold 8.20% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| Philotimo Focused Growth & Income | $1.29M | 0.94% | 3.15% | June 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND | $844K | 0.00% | 2.06% | June 30, 2026 |
20 more funds behind a free account
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