ZS
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
FMR LLC
· Reduced
−$415M
Change
−2.3M
Δ Own
−51.6%
Date
Q1 2026
|
FMR LLC | Reduced· Q1 2026 | −$415M | −2.3M | −51.6% | Q1 2026 | |||||
|
Victory Capital Management Inc
· Added
+$251M
Change
+1.4M
Date
Q1 2026
|
Victory Capital Management Inc | Added· Q1 2026 | +$251M | +1.4M | – | Q1 2026 | |||||
|
Federated Hermes, Inc.
· Reduced
−$191M
Change
−1.1M
Date
Q1 2026
|
Federated Hermes, Inc. | Reduced· Q1 2026 | −$191M | −1.1M | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$173M
Change
+975K
Δ Own
+483.9%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$173M | +975K | +483.9% | Q1 2026 | |||||
|
First Trust Advisors LP
· Added
+$166M
Change
+936K
Date
Q1 2026
|
First Trust Advisors LP | Added· Q1 2026 | +$166M | +936K | – | Q1 2026 | |||||
|
T. Rowe Price Associates
· Reduced
−$146M
Change
−823K
Date
Q1 2026
|
T. Rowe Price Associates | Reduced· Q1 2026 | −$146M | −823K | – | Q1 2026 | |||||
|
Wellington Management Group LLP
· Added
+$135M
Change
+759K
Δ Own
+566.3%
Date
Q1 2026
|
Wellington Management Group LLP | Added· Q1 2026 | +$135M | +759K | +566.3% | Q1 2026 | |||||
|
BlackRock
· Added
+$131M
Change
+738K
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | +$131M | +738K | – | Q1 2026 | |||||
|
Pictet Asset Management Holding SA
· Added
+$117M
Change
+661K
Date
Q1 2026
|
Pictet Asset Management Holding SA | Added· Q1 2026 | +$117M | +661K | – | Q1 2026 | |||||
|
Voya Investment Management LLC
· Reduced
−$106M
Change
−597K
Date
Q1 2026
|
Voya Investment Management LLC | Reduced· Q1 2026 | −$106M | −597K | – | Q1 2026 | |||||
|
AQR Capital Management LLC
· Reduced
−$104M
Change
−583K
Date
Q1 2026
|
AQR Capital Management LLC | Reduced· Q1 2026 | −$104M | −583K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Reduced
−$95M
Change
−538K
Δ Own
−36.6%
Date
Q1 2026
|
Invesco Ltd. | Reduced· Q1 2026 | −$95M | −538K | −36.6% | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
+$91M
Change
+513K
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | +$91M | +513K | – | Q1 2026 | |||||
|
Seb Asset Management AB
· New
+$76M
Change
+428K
Date
Q1 2026
|
Seb Asset Management AB | New· Q1 2026 | +$76M | +428K | – | Q1 2026 | |||||
|
Voloridge Investment Management, LLC
· New
+$76M
Change
+428K
Date
Q1 2026
|
Voloridge Investment Management, LLC | New· Q1 2026 | +$76M | +428K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Schlossman Robert
· Officer
Sell
−$18K
|
Schlossman Robert | Officer | Sell | $150.00 | −122 | −$18K | 69K | −0.2% | Jul 6, 2026 | Jul 7, 2026 | |||||||||
|
Rubin Kevin
· Officer
5 operations
−$373K
|
Rubin Kevin | Officer | 5 operations | $123.18–$126.79 | −3K | −$373K | 42K | −6.7% | Jun 25, 2026 | Jun 26, 2026 | |||||||||
|
Geller Adam
· Officer
Sell
−$345K
|
Geller Adam | Officer | Sell | $122.60 | −3K | −$345K | 42K | −6.2% | Jun 22, 2026 | Jun 23, 2026 | |||||||||
|
Beer James A.
· Director
Sell
−$22K
|
Beer James A. | Director | Sell | $125.50 | −177 | −$22K | 4K | – | Jun 17, 2026 | Jun 17, 2026 | |||||||||
|
Chaudhry Jagtar Singh
· Director
Sell
−$364K
|
Chaudhry Jagtar Singh | Director | Sell | $126.43 | −3K | −$364K | 343K | – | Jun 16, 2026 | Jun 17, 2026 | |||||||||
|
Geller Adam
· Officer
Sell
−$245K
|
Geller Adam | Officer | Sell | $126.43 | −2K | −$245K | 45K | – | Jun 16, 2026 | Jun 17, 2026 | |||||||||
|
Schlossman Robert
· Officer
Sell
−$398K
|
Schlossman Robert | Officer | Sell | $126.43 | −3K | −$398K | 69K | – | Jun 16, 2026 | Jun 17, 2026 | |||||||||
|
Rich Michael J.
· Officer
Sell
−$529K
|
Rich Michael J. | Officer | Sell | $126.43 | −4K | −$529K | 100K | – | Jun 16, 2026 | Jun 17, 2026 | |||||||||
|
Rubin Kevin
· CFO
Sell
−$213K
|
Rubin Kevin | CFO | Sell | $126.43 | −2K | −$213K | 45K | – | Jun 16, 2026 | Jun 17, 2026 | |||||||||
|
Geller Adam
· Officer
Sell
−$321K
|
Geller Adam | Officer | Sell | $153.53 | −2K | −$321K | 47K | – | Mar 18, 2026 | Mar 19, 2026 | |||||||||
|
Beer James A.
· Director
Sell
−$27K
|
Beer James A. | Director | Sell | $153.53 | −177 | −$27K | 4K | – | Mar 18, 2026 | Mar 19, 2026 | |||||||||
|
Geller Adam
· Officer
Sell
−$233K
|
Geller Adam | Officer | Sell | $156.59 | −1K | −$233K | 49K | – | Mar 17, 2026 | Mar 19, 2026 | |||||||||
|
Chaudhry Jagtar Singh
· Director, Officer, 10% Owner
Sell
−$304K
|
Chaudhry Jagtar Singh | Director, Officer, 10% Owner | Sell | $156.59 | −2K | −$304K | 346K | – | Mar 17, 2026 | Mar 18, 2026 | |||||||||
|
Rubin Kevin
· Officer
Sell
−$263K
|
Rubin Kevin | Officer | Sell | $156.59 | −2K | −$263K | 46K | – | Mar 17, 2026 | Mar 18, 2026 | |||||||||
|
Schlossman Robert
· Officer
Sell
−$354K
|
Schlossman Robert | Officer | Sell | $156.59 | −2K | −$354K | 72K | – | Mar 17, 2026 | Mar 18, 2026 | |||||||||
851 reporting institutions disclosed ZS position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.