Data I/O Corp. (DAIO) Insider Trading
Directors, officers and holders of more than 10% of DAIO report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 24 most recent of 24 transactions on file: 7 with code P, 0 with code S and 17 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 20, 2026 | Red Oak Partners, LLC | 10% Owner | P Purchase | 130,199 | $2.68 | $348,933 |
| Oct 20, 2026 | Red Oak Partners, LLC | 10% Owner | P Purchase | 242,934 | $2.68 | $651,063 |
| Oct 20, 2026 | Red Oak Partners, LLC | 10% Owner | P Purchase | 0 | $1046808.00 | Not measured |
| Oct 20, 2026 | Red Oak Partners, LLC | 10% Owner | P Purchase | 0 | $1953192.04 | Not measured |
| Sep 1, 2026 | DiBona Charles Joseph | Vice President & CFO | F Tax Payment | 10,345 | $2.88 | $29,845 |
| Jul 8, 2026 | WASZAK STEVEN M | Director | A Award | 16,260 | $3.56 | $57,804 |
| Jul 8, 2026 | Washlow Sally A. | Director | A Award | 16,260 | $3.56 | $57,804 |
| Jul 8, 2026 | SMITH EDWARD J | Director | A Award | 16,260 | $3.56 | $57,804 |
| Jul 8, 2026 | Larson Garrett Riley | Director | A Award | 16,260 | $3.56 | $57,804 |
| Dec 3, 2025 | WASZAK STEVEN M | Director | A Award | 7,950 | $2.79 | $22,192 |
| Dec 3, 2025 | Wentworth William O. | President | A Award | 1,100 | $2.80 | $3,080 |
| Dec 2, 2025 | Wentworth William O. | President | A Award | 7,455 | $2.78 | $20,755 |
| Sep 1, 2025 | DiBona Charles Joseph | Vice President & CFO | A Award | 100,000 | $3.15 | $315,430 |
| May 15, 2025 | Larson Garrett Riley | Director | A Award | 20,300 | $2.48 | $50,344 |
| May 15, 2025 | Washlow Sally A. | Director | A Award | 20,300 | $2.48 | $50,344 |
| May 15, 2025 | SMITH EDWARD J | Director | A Award | 20,300 | $2.48 | $50,344 |
| May 15, 2025 | Brown Douglas Wells | Director | A Award | 20,300 | $2.48 | $50,344 |
| May 7, 2025 | SMITH EDWARD J | Director | P Purchase | 5,000 | $2.46 | $12,300 |
| May 6, 2025 | Wentworth William O. | President | P Purchase | 10,332 | $2.42 | $24,998 |
| May 2, 2025 | Wentworth William O. | President | A Award | 10,585 | $2.36 | $24,981 |
| May 1, 2025 | Wentworth William O. | President | P Purchase | 10,585 | $2.36 | $24,981 |
| Jan 23, 2025 | Larson Garrett Riley | Director | A Award | 5,272 | $2.91 | $15,342 |
| Sep 3, 2024 | Wentworth William O. | President | A Award | 200,000 | $2.39 | $478,460 |
| Jul 3, 2024 | Ng Gerald Yat | Vice President CFO | F Tax Payment | 5,559 | $2.79 | $15,510 |
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.