Item 1.05
DATA I/O CORP
Market reaction
Issuer share price following the disclosure
Closing prices for DATA I/O CORP’s common stock (DAIO) around the filing date, set against the S&P 500 over the same period. The baseline is the last close preceding the filing date; percentage changes are computed on prices adjusted for splits and dividends.
| Offset | Close date | Close | Change from pre-filing close | S&P 500, same period |
|---|---|---|---|---|
| Pre-filing close (baseline) | 2025-09-09 | $3.49 | — | — |
| Filing date | 2025-09-10 | $3.50 | +0.3% | +0.3% |
| 1 day after filing | 2025-09-11 | $3.45 | −1.1% | +1.1% |
| 3 days after filing | 2025-09-15 | $3.37 | −3.4% | +1.6% |
| 14 days after filing | 2025-09-24 | $3.33 | −4.6% | +1.9% |
| 1 month after filing | 2025-10-10 | $3.05 | −12.6% | +0.7% |
| 3 months after filing | 2025-12-10 | $3.13 | −10.3% | +6.0% |
| 6 months after filing | 2026-03-10 | $2.64 | −24.4% | +4.7% |
Filings accepted by EDGAR after 5:30 p.m. Eastern are dated the following business day, so the filing date shown is generally the first session in which the market could respond. Offsets falling on non-trading days resolve to the next session. End-of-day price data provided by Tiingo.
Comparable filings
Structurally comparable filings in the corpus
Ranked by structural similarity over the extracted incident:v2 axes (attack source, data classes, materiality determinations, disclosure basis, records scale). Click any row to read that filing alongside its own extraction registry.
- AMGEN INCAMGN8-K · Filed 2026-07-31 · Item 1.05 · +7.1% at 14 days · S&P 500 +4.7%unauthorized activity involving data stored in cloud environmentsThird-party vendor
- SR Bancorp, Inc.SRBK8-K · Filed 2026-07-10 · Item 8.01 · +0.7% at 14 days · S&P 500 −1.7%data security incidentThird-party vendorOp not_addressed
- NAVIENT CORPJSM8-K · Filed 2026-07-02 · Item 1.05 · −0.7% at 14 days · S&P 500 +0.7%ransomware attackThird-party vendor
- 8X8 INC /DE/EGHT8-K · Filed 2026-06-23 · Item 1.05 · +14.5% at 14 days · S&P 500 +0.4%unauthorized access and data exfiltration via third-party integrationThird-party vendor
- iRhythm Holdings, Inc.IRTC8-K · Filed 2026-06-15 · Item 1.05 · +4.2% at 14 days · S&P 500 +0.4%unauthorized activity involving data maintained on third-party-hosted business applicationsThird-party vendor