Zscaler, Inc. (ZS) ownership: Top institutional holder: VANGUARD GROUP INC ($2.57B). Insider activity: Net Seller (0 buys, 20 sells). 6 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 11423424.00 | $2.57B | 2025-12-31 |
| BlackRock, Inc. | 8568317.00 | $1.20B | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5930635.00 | $832.01M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4660890.00 | $653.88M | 2026-03-31 |
| FIRST TRUST ADVISORS LP | 3518678.00 | $493.64M | 2026-03-31 |
| GOLDMAN SACHS GROUP INC | 3140139.00 | $440.53M | 2026-03-31 |
| STATE STREET CORP | 2384518.00 | $334.52M | 2026-03-31 |
| AMERICAN CENTURY COMPANIES INC | 2384425.00 | $334.51M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-17 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-03-18 | |
| Sell | null | 2026-03-18 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.