ZS Institutional Ownership Changes & 13F Activity
ZSCALER INC (ZS) institutional ownership data tracks hedge funds, asset managers, pension funds, and institutional investors holding Amazon shares based on recent SEC 13F filings (Q1 2026). Recent filings show notable position changes from firms including Sequoia Financial Advisors, Tiger Global Management, Renaissance Technologies LLC, Viking Global Investors, and ARK Invest. This page analyzes institutional buying and selling activity, increased and reduced positions, new holdings, and sold-out positions to help investors understand institutional sentiment, portfolio allocation trends, and hedge fund conviction in ZSCALER INC stock.
Key Insights:
- Q1 2026 SEC 13F filings show notable institutional position changes in ZS.
- Sequoia Financial Advisors, Tiger Global Management, Renaissance Technologies LLC, Viking Global Investors, and ARK Invest were among firms reporting significant share count changes.
- Institutional ownership trends can help investors monitor hedge fund sentiment and long-term conviction in ZS stock.
Related ZS Insights:
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q1 2022 | Renaissance Technologies LLC | Buy | 630,400 | 697,800 | $168,365 |
| Q3 2021 | Renaissance Technologies LLC | Sell | -195,900 | 67,400 | $17,674 |
| Q2 2021 | Renaissance Technologies LLC | Sell | -364,100 | 263,300 | $56,889 |
| Q1 2021 | ARK Invest | Sell | -48,761 | 621 | $107 |
| Q1 2021 | Renaissance Technologies LLC | Buy | 604,934 | 627,400 | $107,706 |
| Q4 2020 | ARK Invest | Sell | -981,482 | 49,382 | $9,862 |
| Q4 2020 | Renaissance Technologies LLC | Sell | -150,734 | 22,466 | $4,487 |
| Q3 2020 | ARK Invest | Buy | 249,725 | 1,030,864 | $145,032 |
| Q2 2020 | ARK Invest | Buy | 672,055 | 781,139 | $85,535 |
| Q2 2020 | Renaissance Technologies LLC | Sell | -538,700 | 173,200 | $18,965 |
| Q1 2020 | ARK Invest | Sell | -17,255 | 109,084 | $6,639 |
| Q4 2019 | ARK Invest | Buy | 126,339 | 126,339 | $5,875 |
| Q2 2019 | Renaissance Technologies LLC | Buy | 92,600 | 711,900 | $54,560 |
| Q1 2019 | Renaissance Technologies LLC | Buy | 400,800 | 619,300 | $43,927 |
| Q4 2018 | Renaissance Technologies LLC | Buy | 211,645 | 218,500 | $8,567 |
| Q3 2018 | Renaissance Technologies LLC | Buy | 6,855 | 6,855 | $280 |
Frequently asked questions about ZS activity
Which institutional owners are buying ZS?
Institutional owners buying ZS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ZS activity?
"Buy" means an investor increased their reported position in ZS compared to the prior reporting period. This reflects growing exposure to ZSCALER INC (ZS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ZS increasing?
Institutional interest in ZS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.