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Planned insider sales
Notices (SEC Form 144) that executives and other insiders file before selling shares, and whether a sale was reported afterwards.
About this data
- What it is
- Before an executive, director or large owner sells restricted or control shares, they file a short notice with the SEC, called Form 144, saying how many shares they plan to sell, through which broker and roughly when. This feed lists those notices, and for each one shows whether a sale was reported afterwards on a Form 4 and how many days later.
- Who files it
- The person selling, or their broker, on the day the sale is placed. Electronic notices start in April 2023.
- How current
- We collect new notices throughout the day on SEC business days.
- Terms
- Form 144The notice an insider or other affiliate of a company files with the SEC before selling restricted or control shares, so the shares can be sold under Rule 144. The notice says how many shares, through which broker, and roughly when.10b5-1 planA Rule 10b5-1 trading plan lets an insider set up future sales in advance, on a schedule or at set prices, at a time when they do not hold inside information. A notice that gives a plan adoption date says the sale is made under such a plan.
- Worth knowing
- A notice is a plan, not a sale: the person may sell fewer shares, later, or not at all. The value is the one the filer typed, at a price they chose, not what the shares sell for. Many sales are routine, made to diversify or pay taxes, or under a 10b5-1 plan set up months earlier. A blank in the last column does not mean no sale: the person may not have to file a Form 4 (an ordinary affiliate does not), the sale may be recent, or the Form 4 may name a different spelling of the person. We match by the filer's number first and by name second. Information, not investment advice.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Form 144 notices per day, last 30 days
All notices Notices that give a 10b5-1 plan
By the day each notice was filed. A notice is a plan to sell, not a sale.
Latest notices of planned insider sales
Showing: ticker ATEN
| Filed | Insider | Company | Shares to sellA notice is a plan, not a sale. The person may sell fewer shares, sell later, or not sell at all, and the number of shares is what they expect to sell on the day they file. | ValueThe aggregate market value the filer typed on the notice: the shares times a price the filer chose. It is not what the shares will sell for. | PlanA Rule 10b5-1 trading plan lets an insider set up future sales in advance, on a schedule or at set prices, at a time when they do not hold inside information. A notice that gives a plan adoption date says the sale is made under such a plan. | Expected sale | Sale reportedInsiders who are officers, directors or hold more than 10% report their sales on a Form 4, within two business days. We look for the first Form 4 with an open-market sale by the same person in the same company within 90 days of the notice, and show how many days after the notice it was filed. A blank means we found none: the person may not have sold, may not have to file a Form 4, or the Form 4 may be one we do not have. | Notice |
|---|---|---|---|---|---|---|---|---|
| Aug 25, 2026 | Dana Elizabeth Wolf Director | ATEN A10 Networks, Inc. | 2,652 | $68.0K | 10b5-1 | Aug 25, 2026 | Form 4 ↗ same day · 2,652 shares | Form 144 ↗ |
| Aug 11, 2026 | Robert S Weber Officer | ATEN A10 Networks, Inc. | 14,086 | $392.5K | 10b5-1 | Aug 11, 2026 | Form 4 ↗ 1 day later · 14,086 shares | Form 144 ↗ |
| Jul 2, 2026 | Sheen Khoury Former Officer | ATEN A10 Networks, Inc. | 5,000 | $183.7K | — | Jul 2, 2026 | — | Form 144 ↗ |
| Jun 10, 2026 | Sheen Khoury Former Officer | ATEN A10 Networks, Inc. | 7,000 | $220.9K | — | Jun 10, 2026 | — | Form 144 ↗ |
| May 5, 2026 | Eric Singer Director | ATEN A10 Networks, Inc. | 24,698 | $672.1K | — | May 5, 2026 | Form 4 ↗ 1 day later · 24,698 shares | Form 144 ↗ |
| Feb 13, 2026 | Dhrupad Trivedi Officer, Director | ATEN A10 Networks, Inc. | 33,334 | $684.9K | 10b5-1 | Feb 13, 2026 | Form 4 ↗ same day · 100,000 shares | Form 144 ↗ |
| Feb 12, 2026 | Dhrupad Trivedi Officer, Director | ATEN A10 Networks, Inc. | 33,333 | $685.4K | 10b5-1 | Feb 12, 2026 | Form 4 ↗ 1 day later · 100,000 shares | Form 144 ↗ |
| Feb 11, 2026 | Dhrupad Trivedi Officer, Director | ATEN A10 Networks, Inc. | 33,333 | $689.6K | 10b5-1 | Feb 11, 2026 | Form 4 ↗ 2 days later · 100,000 shares | Form 144 ↗ |
| Aug 13, 2025 | Brian Becker Officer | ATEN A10 Networks, Inc. | 6,400 | $115.4K | — | Aug 13, 2025 | Form 4 ↗ 1 day later · 6,400 shares | Form 144 ↗ |
| May 28, 2025 | Robert S Weber Officer | ATEN A10 Networks, Inc. | 2,500 | $43.7K | 10b5-1 | May 28, 2025 | Form 4 ↗ same day · 5,000 shares | Form 144 ↗ |
| Mar 4, 2025 | Dhrupad Trivedi Officer, Director | ATEN A10 Networks, Inc. | 26,813 | $531.0K | 10b5-1 | Mar 4, 2025 | Form 4 ↗ same day · 53,625 shares | Form 144 ↗ |
| Mar 3, 2025 | Dhrupad Trivedi Officer, Director | ATEN A10 Networks, Inc. | 26,812 | $552.0K | 10b5-1 | Mar 3, 2025 | Form 4 ↗ 1 day later · 80,438 shares | Form 144 ↗ |
| Feb 28, 2025 | Dhrupad Trivedi Officer, Director | ATEN A10 Networks, Inc. | 26,813 | $551.5K | 10b5-1 | Feb 28, 2025 | Form 4 ↗ 4 days later · 80,438 shares | Form 144 ↗ |
| Feb 6, 2025 | Karen S. Thomas Officer | ATEN A10 Networks, Inc. | 2,695 | $56.2K | — | Feb 6, 2025 | — | Form 144 ↗ |
| Nov 13, 2024 | Summit Investors I (UK), L.P. AFFILIATE SHAREHOLDER | ATEN A10 Networks, Inc. | 163 | $2,719 | — | Nov 13, 2024 | — | Form 144 ↗ |
| Nov 13, 2024 | Summit Investors I, LLC AFFILIATE SHAREHOLDER | ATEN A10 Networks, Inc. | 1,840 | $30.7K | — | Nov 13, 2024 | — | Form 144 ↗ |
| Nov 13, 2024 | Summit Partners Growth Equity Fund VIII-B, L.P. AFFILIATE SHAREHOLDER | ATEN A10 Networks, Inc. | 115,005 | $1.9M | — | Nov 13, 2024 | — | Form 144 ↗ |
| Nov 13, 2024 | Summit Partners Growth Equity Fund VIII-A, L.P. AFFILIATE SHAREHOLDER | ATEN A10 Networks, Inc. | 314,791 | $5.3M | — | Nov 13, 2024 | — | Form 144 ↗ |
| Nov 12, 2024 | Karen S. Thomas Officer | ATEN A10 Networks, Inc. | 6,162 | $102.9K | — | Nov 12, 2024 | Form 4 ↗ 1 day later · 6,162 shares | Form 144 ↗ |
| May 20, 2024 | Summit Partners Growth Equity Fund VIII-B, L.P. Shareholder | ATEN A10 Networks, Inc. | 877,861 | $13.5M | — | May 20, 2024 | — | Form 144 ↗ |
| May 20, 2024 | Summit Partners Growth Equity Fund VIII-A, L.P. Shareholder | ATEN A10 Networks, Inc. | 2.40M | $37.0M | — | May 20, 2024 | — | Form 144 ↗ |
| May 20, 2024 | Summit Investors I, LLC Shareholder | ATEN A10 Networks, Inc. | 14,049 | $216.4K | — | May 20, 2024 | — | Form 144 ↗ |
| May 20, 2024 | Summit Investors I (UK), L.P. Shareholder | ATEN A10 Networks, Inc. | 1,236 | $19.0K | — | May 20, 2024 | — | Form 144 ↗ |
| Apr 23, 2024 amended | Dhrupad Trivedi Affiliate | ATEN A10 Networks, Inc. | 20,965 | $301.3K | — | Mar 13, 2023 | — | Form 144/A ↗ |
| Mar 5, 2024 | Dhrupad Trivedi Officer, Director | ATEN A10 Networks, Inc. | 60,606 | $804.1K | 10b5-1 | Mar 5, 2024 | — | Form 144 ↗ |
| Feb 13, 2024 | Brian Becker Officer | ATEN A10 Networks, Inc. | 15,000 | $193.9K | — | Feb 13, 2024 | — | Form 144 ↗ |
| Feb 6, 2024 | Dhrupad Trivedi Officer and Director | ATEN A10 Networks, Inc. | 8,679 | $113.3K | 10b5-1 | Feb 5, 2024 | — | Form 144 ↗ |
| Feb 6, 2024 | Brian Becker Officer | ATEN A10 Networks, Inc. | 2,047 | $26.7K | 10b5-1 | Feb 5, 2024 | — | Form 144 ↗ |
| Feb 2, 2024 | Brian Becker Officer | ATEN A10 Networks, Inc. | 4,348 | $57.5K | 10b5-1 | Feb 2, 2024 | — | Form 144 ↗ |
| Feb 2, 2024 | Dhrupad Trivedi Officer and Director | ATEN A10 Networks, Inc. | 28,957 | $382.6K | 10b5-1 | Feb 2, 2024 | — | Form 144 ↗ |
| Feb 2, 2024 | Robert Scott Weber Officer | ATEN A10 Networks, Inc. | 1,509 | $19.9K | 10b5-1 | Feb 2, 2024 | — | Form 144 ↗ |
| Jan 29, 2024 | Dhrupad Trivedi Officer and Director | ATEN A10 Networks, Inc. | 21,498 | $291.9K | 10b5-1 | Jan 29, 2024 | — | Form 144 ↗ |
| Jan 24, 2024 | Dhrupad Trivedi Officer and Director | ATEN A10 Networks, Inc. | 8,809 | $123.6K | 10b5-1 | Jan 24, 2024 | — | Form 144 ↗ |
| Jan 24, 2024 | Brian Becker Officer | ATEN A10 Networks, Inc. | 1,375 | $19.3K | 10b5-1 | Jan 24, 2024 | — | Form 144 ↗ |
| Dec 6, 2023 | Dhrupad Trivedi CEO and Director | ATEN A10 Networks, Inc. | 15,729 | $200.0K | 10b5-1 | Dec 6, 2023 | — | Form 144 ↗ |
| Nov 13, 2023 | Matthew P. Bruening Officer | ATEN A10 Networks, Inc. | 5,151 | $62.4K | — | Nov 13, 2023 | — | Form 144 ↗ |
| Sep 6, 2023 | Matthew Breuning Officer | ATEN A10 Networks, Inc. | 2,085 | $31.5K | 10b5-1 | Sep 5, 2023 | — | Form 144 ↗ |
| Sep 6, 2023 | Brian Becker Officer | ATEN A10 Networks, Inc. | 1,559 | $23.5K | 10b5-1 | Sep 5, 2023 | — | Form 144 ↗ |
| Sep 6, 2023 | Dhrupad Trivedi Officer and Director | ATEN A10 Networks, Inc. | 6,622 | $100.0K | 10b5-1 | Sep 5, 2023 | — | Form 144 ↗ |
| Aug 21, 2023 | Matthew Bruening Officer | ATEN A10 Networks, Inc. | 2,080 | $30.1K | 10b5-1 | Aug 18, 2023 | — | Form 144 ↗ |
| Aug 21, 2023 | Brian Becker Officer | ATEN A10 Networks, Inc. | 1,556 | $22.5K | — | Aug 18, 2023 | — | Form 144 ↗ |
| Aug 21, 2023 | Dhrupad Trivedi Officer and Director | ATEN A10 Networks, Inc. | 6,607 | $95.5K | 10b5-1 | Aug 18, 2023 | — | Form 144 ↗ |
| Aug 8, 2023 | Matthew P. Bruening Officer | ATEN A10 Networks, Inc. | 8,641 | $132.9K | — | Aug 8, 2023 | — | Form 144 ↗ |
| Aug 7, 2023 | Matthew P Bruening Officer | ATEN A10 Networks, Inc. | 5,036 | $77.9K | 10b5-1 | Aug 7, 2023 | — | Form 144 ↗ |
| Aug 7, 2023 | Dhrupad Trivedi Officer and Director | ATEN A10 Networks, Inc. | 21,181 | $327.5K | 10b5-1 | Aug 7, 2023 | — | Form 144 ↗ |
| Aug 7, 2023 | Brian Becker Officer | ATEN A10 Networks, Inc. | 2,886 | $44.6K | 10b5-1 | Aug 7, 2023 | — | Form 144 ↗ |
| Aug 3, 2023 | Brian Becker Officer | ATEN A10 Networks, Inc. | 12,347 | $191.4K | — | Aug 3, 2023 | — | Form 144 ↗ |
| Aug 1, 2023 | Weber Robert Scott Officer | ATEN A10 Networks, Inc. | 1,860 | $28.8K | — | Jul 28, 2023 | — | Form 144 ↗ |
| Aug 1, 2023 | Brian Becker Officer | ATEN A10 Networks, Inc. | 1,565 | $24.1K | 10b5-1 | Jul 31, 2023 | — | Form 144 ↗ |
| Aug 1, 2023 | Matthew P. Bruening Officer | ATEN A10 Networks, Inc. | 2,092 | $32.2K | — | Jul 31, 2023 | — | Form 144 ↗ |
The newest 50 items, most recent first. Every row links to the notice on the SEC's site, and to the Form 4 when we found one. Updated Nov 15, 2026, 6:51 PM EST.
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