A10 Networks, Inc. 13F holders
Of the 44 funds followed here, 7 reported a position in A10 Networks, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 1.8 million shares worth $67.8 million, 0.0% of its reported book.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 1,813,638 | $67.8 million | 0.0% | +96,232 | added | 30 June 2026 | 13F |
| Renaissance Technologies | 1,520,287 | $56.8 million | 0.1% | -264,700 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 1,433,878 | $53.6 million | 0.0% | +1,405,772 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 1,124,963 | $42.0 million | 0.0% | -195,026 | trimmed | 30 June 2026 | 13F |
| Millennium Management | 175,579 | $6.6 million | 0.0% | -249,341 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 136,940 | $5.1 million | 0.0% | -377,080 | trimmed | 30 June 2026 | 13F |
| Norges Bank | 26,272 | $981,522 | 0.0% | held | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 30 July 2026 | 13G | First Trust Portfolios L.P. and 5 others | 4.8 million | 6.7% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 29 April 2026 | 13G | Vanguard Capital Management and 1 other | 3.7 million | 5.1% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.Fails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 14 September 2026 | 5,152 | $24.74 | SEC |
| 3 September 2026 | 947 | $24.76 | SEC |
| 17 August 2026 | 1,029 | $27.40 | SEC |
| 14 August 2026 | 4,875 | $27.00 | SEC |
| 13 August 2026 | 11,370 | $27.49 | SEC |
| 11 August 2026 | 5,666 | $28.33 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
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Largest in the window: 11,370 on 13 August 2026. A fail is an operational fact about settlement, not a position.Source
Each fund's 13F-HR on EDGAR, linked per row; positions matched to ATEN by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.
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