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Ken Griffin's Zscaler, Inc. (ZS) position

Yes: as of Q1 2026, Ken Griffin holds 511K shares of ZS worth $72M (0.1% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
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Current value
$72M
Shares held
511K
% of portfolio
0.1%
Est. average buy price (i)
$213.06
est. since Q1 2021
Quarter-end price
$140.29

Estimated trade prices

Average price in quarters with purchases
$210.94
Average prices in quarters with sales
  • Q3 2025: $285.06 (1.0M shares sold)
  • Q1 2025: $199.27 (48K shares sold)
  • Q4 2024: $193.56 (307K shares sold)
  • Q3 2024: $182.63 (180K shares sold)
  • Q1 2024: $223.73 (307K shares sold)
  • Q4 2022: $135.86 (495K shares sold)
  • Q1 2022: $245.72 (44K shares sold)
  • Q4 2021: $314.89 (217K shares sold)
  • Q2 2021: $190.14 (59K shares sold)

ZS price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$80$200$40020222023202420252026Added 284K shares (116.0%) · Q3 2021. Average closing price $251.10 · Price range $213.72–$287.40284KsharespurchasedSold 217K shares (41.0%) · Q4 2021. Average closing price $314.89 · Price range $251.86–$368.78217KsharessoldSold 44K shares (14.1%) · Q1 2022. Average closing price $245.72 · Price range $189.53–$301.8344KsharessoldAdded 19K shares (7.2%) · Q2 2022. Average closing price $176.82 · Price range $127.81–$252.1119KsharespurchasedAdded 222K shares (77.2%) · Q3 2022. Average closing price $163.61 · Price range $141.95–$193.60222KsharespurchasedSold 495K shares (97.2%) · Q4 2022. Average closing price $135.86 · Price range $107.57–$182.92495KsharessoldAdded 12K shares (82.3%) · Q1 2023. Average closing price $119.97 · Price range $103.96–$142.7712KsharespurchasedAdded 71K shares (276.4%) · Q2 2023. Average closing price $122.11 · Price range $87.00–$158.3471KsharespurchasedAdded 123K shares (128.1%) · Q3 2023. Average closing price $149.95 · Price range $135.65–$165.05123KsharespurchasedAdded 190K shares (86.6%) · Q4 2023. Average closing price $185.19 · Price range $151.46–$225.02190KsharespurchasedSold 307K shares (75.1%) · Q1 2024. Average closing price $223.73 · Price range $192.63–$254.93307KsharessoldAdded 541K shares (531.0%) · Q2 2024. Average closing price $177.98 · Price range $156.65–$192.19541KsharespurchasedSold 180K shares (27.9%) · Q3 2024. Average closing price $182.63 · Price range $155.90–$204.47180KsharessoldSold 307K shares (66.2%) · Q4 2024. Average closing price $193.56 · Price range $166.99–$211.99307KsharessoldSold 48K shares (30.6%) · Q1 2025. Average closing price $199.27 · Price range $181.66–$216.8748KsharessoldAdded 1.1M shares (over 1,000%) · Q2 2025. Average closing price $249.30 · Price range $174.67–$315.321.1MsharespurchasedSold 1.0M shares (85.3%) · Q3 2025. Average closing price $285.06 · Price range $267.68–$316.501.0MsharessoldAdded 64K shares (36.2%) · Q4 2025. Average closing price $282.25 · Price range $224.92–$336.2764KsharespurchasedAdded 271K shares (112.8%) · Q1 2026. Average closing price $177.52 · Price range $133.16–$231.16271Ksharespurchased← Earlier —1 sell
Average closing price · filing quarter
$177.52
Price range · filing quarter
$133.16 – $231.16
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +271K +$48M +112.8% 511K May 15, 2026
Q4 2025 Added +64K +$18M +36.2% 240K Feb 17, 2026
Q3 2025 Reduced −1.0M −$292M −85.3% 176K Nov 14, 2025
Q2 2025 Added +1.1M +$272M +1,002.5% 1.2M Aug 14, 2025
Q1 2025 Reduced −48K −$9.6M −30.6% 109K May 15, 2025
Q4 2024 Reduced −307K −$59M −66.2% 157K Feb 14, 2025
Q3 2024 Reduced −180K −$33M −27.9% 464K Nov 14, 2024
Q2 2024 Added +541K +$96M +531.0% 643K Aug 14, 2024
Q1 2024 Reduced −307K −$69M −75.1% 102K May 15, 2024
Q4 2023 Added +190K +$35M +86.6% 409K Feb 14, 2024
Q3 2023 Added +123K +$18M +128.1% 219K Nov 14, 2023
Q2 2023 Added +71K +$8.6M +276.4% 96K Aug 14, 2023
Q1 2023 Added +12K +$1.4M +82.3% 26K May 15, 2023
Q4 2022 Reduced −495K −$67M −97.2% 14K Feb 14, 2023
Q3 2022 Added +222K +$36M +77.2% 509K Nov 14, 2022
Q2 2022 Added +19K +$3.4M +7.2% 287K Aug 15, 2022
Q1 2022 Reduced −44K −$11M −14.1% 268K May 16, 2022
Q4 2021 Reduced −217K −$68M −41.0% 312K Feb 14, 2022
Q3 2021 Added +284K +$71M +116.0% 529K Nov 15, 2021
Q2 2021 Reduced −59K −$11M −19.5% 245K Aug 16, 2021
Q1 2021 First covered – – – 304K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
21 grouped rows from 21 quarters

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Common questions

Does Ken Griffin own ZS?

Yes. As of Q1 2026, Ken Griffin disclosed 511K shares of ZS, worth $72M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy ZS?

Ken Griffin held ZS since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell ZS?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in ZS. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of ZS does Ken Griffin own?

Ken Griffin disclosed 511K shares of ZS as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for ZS?

Ken Griffin began building the ZS position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.