A10 Networks, Inc. (ATEN) ownership: Top institutional holder: BlackRock, Inc. ($302.60M). Insider activity: Net Seller (6 buys, 14 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 13088277.00 | $302.60M | 2026-03-31 |
| VANGUARD GROUP INC | 7241762.00 | $128.11M | 2025-12-31 |
| Penserra Capital Management LLC | 3594112.00 | $83.09M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3387848.00 | $78.33M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3121015.00 | $72.16M | 2026-03-31 |
| STATE STREET CORP | 3090185.00 | $71.45M | 2026-03-31 |
| Boston Trust Walden Corp | 2173261.00 | $50.25M | 2026-03-31 |
| WELLINGTON MANAGEMENT GROUP LLP | 2074511.00 | $47.96M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Buy | null | 2026-05-15 | |
| Buy | null | 2026-05-15 | |
| Sell | null | 2026-05-15 | |
| Buy | null | 2026-05-15 | |
| Buy | null | 2026-05-15 | |
| Buy | null | 2026-05-15 | |
| Sell | null | 2026-05-15 | |
| Sell | null | 2026-05-15 |
Back to ATEN overview · ATEN earnings · All congressional trades
Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.