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A10 Networks stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+40.7% to $24.76
A10 Networks (ATEN) stock rose 41% over the last 252 sessions, to $24.76. On the way it reported 4 quarters, its insiders filed 1 open-market trade and 3 Form 144 notices of planned sales, and the company filed 4 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Nov 5, 2026 | Earnings | Earnings: beat the EPS estimate by 14.8% | −5.2% (−0.7% vs SPY) | — | — |
| Sep 14, 2026 | 8-K | Directors and officers: departures, appointments, pay | +3.5% (+3.9% vs SPY) | +5.5% (+5.6% vs SPY) | +14.9% (+12.9% vs SPY) |
| Aug 25, 2026 | Form 144 | Form 144: Dana Elizabeth Wolf plans to sell $68K | −0.4% (−0.7% vs SPY) | +0.6% (+0.2% vs SPY) | +5.9% (+5.1% vs SPY) |
| Aug 11, 2026 | Form 144 | Form 144: Robert S Weber plans to sell $392K | −4.2% (−3.9% vs SPY) | −3.3% (−3.3% vs SPY) | −13.1% (−11.8% vs SPY) |
| Aug 5, 2026 | 8-K | Material definitive agreement | −11.1% (−10.9% vs SPY) | −11.5% (−11.8% vs SPY) | −21.9% (−22.4% vs SPY) |
| Aug 5, 2026 | Earnings | Earnings: beat the EPS estimate by 4.2% | +0.5% (+0.7% vs SPY) | −12.2% (−12.1% vs SPY) | −21.3% (−20.5% vs SPY) |
| Jul 2, 2026 | Form 144 | Form 144: Sheen Khoury plans to sell $184K | −4.6% (−4.4% vs SPY) | +0.3% (−0.5% vs SPY) | −25.1% (−25.3% vs SPY) |
| May 7, 2026 | 8-K | Directors and officers: departures, appointments, pay | +1.9% (+1.1% vs SPY) | +2.8% (+0.5% vs SPY) | +13.0% (+11.9% vs SPY) |
| May 5, 2026 | Insider sale | Singer Eric sold $672K | +0.3% (−0.5% vs SPY) | +3.6% (+0.6% vs SPY) | +15.3% (+10.4% vs SPY) |
| May 1, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.7% (+1.1% vs SPY) | +3.5% (+1.1% vs SPY) | +19.7% (+14.5% vs SPY) |
| Apr 28, 2026 | Earnings | Earnings: beat the EPS estimate by 4.2% | +1.6% (+2.1% vs SPY) | −2.4% (−2.8% vs SPY) | +5.4% (+0.6% vs SPY) |
| Feb 4, 2026 | Earnings | Earnings: beat the EPS estimate by 9.4% | +1.4% (+1.9% vs SPY) | +19.2% (+18.8% vs SPY) | +19.2% (+20.4% vs SPY) |
Insiders’ record here
In the year on the chart, A10 Networks' insiders reported 0 open-market buys ($0) and 1 sale ($672K). Of the 1 old enough to score, 0 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale +7.3%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → A10 Networks: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.