ATENNYSEComputer Communications EquipmentFiscal year ends December 31
A10 Networks, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026
$24.68+0.22 (+0.90%)
Close on Oct 19, 2026
- Market cap
- $1.87B
- P/E (TTM)
- 41.1
- Dividend yield
- 0.97%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
100.0%
77M of 73M shares
Institutional holders
310
79 new, 28 sold out
Net institutional buying
4M
In Q2 2026
Insider trades, 12 months
0 buys · 6 sales
Net sold $3.19M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| The Charger Corporation | 4,809,261 | 6.68% | 13G (passive) | Jun 30, 2026 |
| Vanguard Capital Management | 3,652,309 | 5.09% | 13G (passive) | Mar 31, 2026 |
| BlackRock, Inc. | 13,179,913 | 17.80% | 13G (passive) amendment | Dec 31, 2023 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of ATEN | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 13,568,496 | 18.69% | $506.92M | +480,219 | 0.01% |
| Vanguard Portfolio Management LLC | 3,462,058 | 4.77% | $129.34M | +74,210 | 0.01% |
| First Trust Advisors LP | 3,244,739 | 4.47% | $121.22M | +1,524,922 | 0.07% |
| State Street Corp | 3,082,631 | 4.25% | $115.17M | −7,554 | 0.00% |
| Vanguard Capital Management LLC | 3,071,071 | 4.23% | $114.74M | −49,944 | 0.00% |
| Penserra Capital Management LLC | 3,068,045 | 4.23% | $114.62K | −526,067 | 0.88% |
| Boston Trust Walden Corp | 2,416,808 | 3.33% | $90.29M | +243,547 | 0.69% |
| Wellington Management Group Llp | 1,959,853 | 2.70% | $73.22M | −114,658 | 0.01% |
| Geode Capital Management, LLC | 1,813,638 | 2.50% | $67.77M | +96,232 | 0.00% |
| Goldman Sachs Group Inc | 1,784,946 | 2.46% | $66.69M | +598,203 | 0.01% |
| Dimensional Fund Advisors LP | 1,599,129 | 2.20% | $59.74M | −36,818 | 0.01% |
| Renaissance Technologies LLC | 1,520,287 | 2.09% | $56.80M | −264,700 | 0.08% |
| Arrowstreet Capital, Limited Partnership | 1,437,650 | 1.98% | $53.71M | −59,494 | 0.02% |
| FMR LLC | 1,433,878 | 1.97% | $53.57M | +1,405,772 | 0.00% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1,426,608 | 1.96% | $53.27M | −129,568 | 0.06% |
| Invesco Ltd. | 1,243,053 | 1.71% | $46.44M | +880,381 | 0.00% |
| Punch & Associates Investment Management, Inc. | 1,188,747 | 1.64% | $44.41M | −271,163 | 2.20% |
| Two Sigma Investments, LP | 1,124,963 | 1.55% | $42.03M | −195,026 | 0.03% |
| Prudential Financial Inc | 1,048,320 | 1.44% | $39.17M | +163,113 | 0.04% |
| Barclays PLC | 962,382 | 1.33% | $35.95M | −912,120 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 310 | 77M | 100.0% | 79 / 90 | 100 / 28 | 12M | 8M |
| Q1 2026 | 264 | 72M | 99.6% | 59 / 100 | 77 / 32 | 16M | 7M |
| Q4 2025 | 242 | 70M | 97.0% | 38 / 84 | 90 / 28 | 6M | 6M |
| Q3 2025 | 236 | 71M | 97.2% | 41 / 89 | 82 / 33 | 6M | 6M |
| Q2 2025 | 229 | 70M | 96.9% | 22 / 91 | 97 / 44 | 6M | 6M |
| Q1 2025 | 252 | 71M | 97.5% | 57 / 86 | 86 / 23 | 12M | 6M |
| Q4 2024 | 219 | 65M | 90.0% | 35 / 90 | 67 / 20 | 8M | 8M |
| Q3 2024 | 207 | 66M | 90.4% | 23 / 87 | 65 / 33 | 18M | 7M |
| Q2 2024 | 218 | 67M | 92.0% | 56 / 84 | 61 / 17 | 12M | 16M |
| Q1 2024 | 181 | 70M | 97.0% | 19 / 64 | 70 / 26 | 6M | 4M |
| Q4 2023 | 191 | 70M | 95.7% | 26 / 74 | 70 / 26 | 10M | 6M |
| Q3 2023 | 192 | 65M | 90.0% | 16 / 78 | 73 / 22 | 4M | 5M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of ATEN | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 4,338,307 | 5.97% | $162.08M | 0.15% | Jun 30, 2026 |
| Amplify Cybersecurity ETF | 2,655,851 | 3.66% | $99.22M | 3.83% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 2,172,774 | 2.99% | $81.17M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 1,890,888 | 2.60% | $70.64M | 0.09% | Jun 30, 2026 |
| Vanguard Information Technology Index Fund | 1,817,275 | 2.50% | $54.77M | 0.03% | May 31, 2026 |
| First Trust Nasdaq Cybersecurity ETF | 1,748,067 | 2.41% | $65.31M | 0.47% | Jun 30, 2026 |
| Global X Cybersecurity ETF | 1,331,823 | 1.83% | $40.14M | 3.42% | May 31, 2026 |
| iShares Cybersecurity and Tech ETF | 1,040,838 | 1.43% | $30.78M | 3.03% | Jul 31, 2026 |
| Fidelity Small Cap Value Fund | 851,585 | 1.17% | $25.18M | 0.46% | Jul 31, 2026 |
| Vanguard Extended Market Index Fund | 823,193 | 1.13% | $30.75M | 0.03% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 792,095 | 1.09% | $23.42M | 0.07% | Jul 31, 2026 |
| First Trust SMID Cap Rising Dividend Achievers ETF | 791,921 | 1.09% | $29.59M | 0.26% | Jun 30, 2026 |
| Boston Trust Walden Small Cap Fund | 673,476 | 0.93% | $25.16M | 2.38% | Jun 30, 2026 |
| iShares Russell 2000 Growth ETF | 669,300 | 0.92% | $25.01M | 0.16% | Jun 30, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF | 662,305 | 0.91% | $24.74M | 0.15% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Dhrupad Trivedi | Chief Executive Officer, Director | 887,847 | 1.22% | May 15, 2026 |
| Robert Scott Weber | General Counsel | 50,586 | 0.07% | Aug 12, 2026 |
| Michelle Elizabeth Caron | Chief Financial Officer | 35,626 | 0.05% | May 15, 2026 |
| Sheen George Khoury | Executive VP, Sales and Mktg | 44,294 | 0.06% | Feb 13, 2026 |
| Brian Becker | Chief Financial Officer | 77,599 | 0.11% | Aug 14, 2025 |
| Karen S. Thomas | EVP, Worldwide Sales and Mkt | 28,613 | 0.04% | Dec 30, 2024 |
| Dana Elizabeth Wolf | Director | 57,409 | 0.08% | Aug 25, 2026 |
| Eric Singer | Director | 144,372 | 0.20% | May 6, 2026 |
| Peter Y. Chung | Director | 207,298 | 0.29% | Apr 24, 2026 |
| Tor Braham | Director | 192,812 | 0.27% | Apr 23, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Dana Elizabeth Wolf Director | Aug 25, 2026 | Sale(10b5-1 plan) | −2,652 | $25.65 | $68.02K | 57,409 |
| Robert Scott Weber General Counsel | Aug 11, 2026 | Sale(10b5-1 plan) | −14,086 | $27.86 | $392.44K | 50,586 |
| Robert Scott Weber General Counsel | Jul 6, 2026 | Tax withholding | −1,897 | $36.30 | $68.86K | 64,672 |
| Michelle Elizabeth Caron Chief Financial Officer | May 15, 2026 | Tax withholding | −748 | $27.00 | $20.20K | 35,626 |
| Robert Scott Weber General Counsel | May 15, 2026 | Tax withholding | −1,930 | $27.00 | $52.11K | 65,527 |
| Robert Scott Weber General Counsel | May 15, 2026 | Tax withholding | −1,930 | $28.03 | $54.10K | 65,527 |
| Dhrupad Trivedi Chief Executive Officer, Director | May 15, 2026 | Tax withholding | −32,858 | $27.00 | $887.17K | 887,847 |
| Dhrupad Trivedi Chief Executive Officer, Director | May 15, 2026 | Tax withholding | −32,858 | $28.03 | $921.01K | 887,847 |
| Michelle Elizabeth Caron Chief Financial Officer | May 15, 2026 | Tax withholding | −760 | $28.03 | $21.30K | 35,614 |
| Michelle Elizabeth Caron Chief Financial Officer | May 14, 2026 | Option exercise | +2,989 | – | – | 36,374 |
| Robert Scott Weber General Counsel | May 14, 2026 | Option exercise | +3,882 | – | – | 67,457 |
| Robert Scott Weber General Counsel | May 14, 2026 | Option exercise | +3,706 | – | – | 63,575 |
| Dhrupad Trivedi Chief Executive Officer, Director | May 14, 2026 | Option exercise | +63,406 | – | – | 920,705 |
| Dhrupad Trivedi Chief Executive Officer, Director | May 14, 2026 | Option exercise | +65,758 | – | – | 857,299 |
| Dhrupad Trivedi Chief Executive Officer, Director | May 6, 2026 | Tax withholding | −32,858 | $27.13 | $891.44K | 791,536 |
| Robert Scott Weber General Counsel | May 6, 2026 | Tax withholding | −1,930 | $27.13 | $52.36K | 59,869 |
| Michelle Elizabeth Caron Chief Financial Officer | May 6, 2026 | Tax withholding | −2,994 | $27.13 | $81.23K | 33,385 |
| Dhrupad Trivedi Chief Executive Officer, Director | May 5, 2026 | Option exercise | +63,406 | – | – | 758,641 |
| Dhrupad Trivedi Chief Executive Officer, Director | May 5, 2026 | Option exercise | +65,753 | – | – | 824,394 |
| Eric Singer Director | May 5, 2026 | Sale | −24,698 | $27.21 | $672.03K | 68,806 |
| Robert Scott Weber General Counsel | May 5, 2026 | Option exercise | +3,882 | – | – | 58,092 |
| Robert Scott Weber General Counsel | May 5, 2026 | Option exercise | +3,707 | – | – | 61,799 |
| Michelle Elizabeth Caron Chief Financial Officer | May 5, 2026 | Option exercise | +2,989 | – | – | 36,379 |
| Michelle Elizabeth Caron Chief Financial Officer | May 5, 2026 | Option exercise | +13,706 | – | – | 33,390 |
| Peter Y. Chung Director | Apr 22, 2026 | Award | +7,233 | – | – | 207,298 |
| Tor Braham Director | Apr 22, 2026 | Award | +7,233 | – | – | 192,812 |
| Dana Elizabeth Wolf Director | Apr 22, 2026 | Award | +7,233 | – | – | 60,061 |
| Eric Singer Director | Apr 22, 2026 | Award | +7,233 | – | – | 93,504 |
| Dhrupad Trivedi Chief Executive Officer, Director | Feb 28, 2026 | Tax withholding | −10,101 | $19.26 | $194.55K | 695,235 |
| Robert Scott Weber General Counsel | Feb 28, 2026 | Tax withholding | −757 | $19.26 | $14.58K | 54,210 |
| Dhrupad Trivedi Chief Executive Officer, Director | Feb 24, 2026 | Tax withholding | −8,261 | $18.99 | $156.88K | 705,336 |
| Dhrupad Trivedi Chief Executive Officer, Director | Feb 13, 2026 | Sale(10b5-1 plan) | −33,334 | $20.55 | $685.01K | 713,597 |
| Dhrupad Trivedi Chief Executive Officer, Director | Feb 12, 2026 | Award | +131,516 | – | – | 746,931 |
| Dhrupad Trivedi Chief Executive Officer, Director | Feb 12, 2026 | Sale(10b5-1 plan) | −33,333 | $20.56 | $685.33K | 615,415 |
| Robert Scott Weber General Counsel | Feb 12, 2026 | Award | +7,413 | – | – | 54,967 |
| Michelle Elizabeth Caron Chief Financial Officer | Feb 12, 2026 | Award | +5,978 | – | – | 19,684 |
| Sheen George Khoury Executive VP, Sales and Mktg | Feb 12, 2026 | Award | +7,771 | – | – | 44,294 |
| Dhrupad Trivedi Chief Executive Officer, Director | Feb 11, 2026 | Sale(10b5-1 plan) | −33,333 | $20.69 | $689.66K | 648,748 |
| Dhrupad Trivedi Chief Executive Officer, Director | Feb 10, 2026 | Tax withholding | −8,261 | $20.92 | $172.82K | 682,081 |
| Robert Scott Weber General Counsel | Feb 10, 2026 | Tax withholding | −1,897 | $20.92 | $39.69K | 47,554 |
| Robert Scott Weber General Counsel | Feb 1, 2026 | Tax withholding | −4,614 | $17.44 | $80.47K | 49,451 |
| Dhrupad Trivedi Chief Executive Officer, Director | Feb 1, 2026 | Tax withholding | −61,945 | $17.44 | $1.08M | 690,342 |
| Robert Scott Weber General Counsel | Jan 31, 2026 | Tax withholding | −836 | $17.44 | $14.58K | 54,065 |
| Dhrupad Trivedi Chief Executive Officer, Director | Jan 31, 2026 | Tax withholding | −10,102 | $17.44 | $176.18K | 752,287 |
| Robert Scott Weber General Counsel | Jan 15, 2026 | Tax withholding | −1,024 | $17.58 | $18.00K | 54,901 |
| Dhrupad Trivedi Chief Executive Officer, Director | Jan 15, 2026 | Tax withholding | −13,106 | $17.58 | $230.40K | 762,389 |
| Robert Scott Weber General Counsel | Dec 15, 2025 | Tax withholding | −925 | $18.12 | $16.76K | 55,925 |
| Dhrupad Trivedi Chief Executive Officer, Director | Dec 15, 2025 | Tax withholding | −12,620 | $18.12 | $228.67K | 775,495 |
| Robert Scott Weber General Counsel | Dec 12, 2025 | Gift | −600 | – | – | 56,850 |
| Michelle Elizabeth Caron Chief Financial Officer | Sep 30, 2025 | Award | +13,706 | – | – | 13,706 |
| Robert Scott Weber General Counsel | Aug 18, 2025 | Gift | −600 | – | – | 56,013 |
| Brian Becker Chief Financial Officer | Aug 13, 2025 | Sale | −6,400 | $18.03 | $115.39K | 77,599 |
| Sheen George Khoury Executive VP, Sales and Mktg | Jul 14, 2025 | Award | +35,000 | – | – | 36,523 |
| Robert Scott Weber General Counsel | Jul 7, 2025 | Tax withholding | −1,894 | $20.14 | $38.15K | 56,613 |
| Robert Scott Weber General Counsel | May 28, 2025 | Sale(10b5-1 plan) | −2,500 | $17.48 | $43.70K | 58,507 |
| Robert Scott Weber General Counsel | May 27, 2025 | Sale(10b5-1 plan) | −2,500 | $17.26 | $43.15K | 61,007 |
| Peter Y. Chung Director | Apr 17, 2025 | Award | +12,698 | – | – | 200,065 |
| Dana Elizabeth Wolf Director | Apr 17, 2025 | Award | +12,698 | – | – | 52,828 |
| Eric Singer Director | Apr 17, 2025 | Award | +12,698 | – | – | 86,271 |
| Tor Braham Director | Apr 17, 2025 | Award | +12,698 | – | – | 185,579 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Elizabeth Wolf Dana Director | Aug 25, 2026 | 2,652 | $68.02K | Aug 25, 2026 | Restricted Stock |
| S. Weber Robert Officer | Aug 11, 2026 | 14,086 | $392.47K | Aug 11, 2026 | Performance and Restricted Stock |
| Khoury Sheen Former Officer | Jul 2, 2026 | 5,000 | $183.70K | Jul 2, 2026 | Performance Shares |
| Khoury Sheen Former Officer | Jun 10, 2026 | 7,000 | $220.93K | Jun 10, 2026 | Restricted Stock |
| Singer Eric Director | May 5, 2026 | 24,698 | $672.06K | May 5, 2026 | Restricted Stock |
| Trivedi Dhrupad Officer, Director | Feb 13, 2026 | 33,334 | $684.88K | Feb 13, 2026 | Performance and Restricted Stock |
| Trivedi Dhrupad Officer, Director | Feb 12, 2026 | 33,333 | $685.38K | Feb 12, 2026 | Performance and Restricted Stock |
| Trivedi Dhrupad Officer, Director | Feb 11, 2026 | 33,333 | $689.59K | Feb 11, 2026 | Performance and Restricted Stock |
| Becker Brian Officer | Aug 13, 2025 | 6,400 | $115.39K | Aug 13, 2025 | Performance Shares |
| S. Weber Robert Officer | May 28, 2025 | 2,500 | $43.70K | May 28, 2025 | Performance Shares |
| Trivedi Dhrupad Officer, Director | Mar 4, 2025 | 26,813 | $531.02K | Mar 4, 2025 | Performance Shares |
| Trivedi Dhrupad Officer, Director | Mar 3, 2025 | 26,812 | $551.99K | Mar 3, 2025 | Performance Shares |
| Trivedi Dhrupad Officer, Director | Feb 28, 2025 | 26,813 | $551.53K | Feb 28, 2025 | Performance Shares |
| Karen S. Thomas Officer | Feb 6, 2025 | 2,695 | $56.20K | Feb 6, 2025 | ESPP |
| Summit Investors I (UK), L.P. AFFILIATE SHAREHOLDER | Nov 13, 2024 | 163 | $2.72K | Nov 13, 2024 | Private Placement |