Elyxium Wealth, LLC
· Reduced
−$3.6B
Change
−11.7M
Date
Q1 2026
CI
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Elyxium Wealth, LLC
· Reduced
−$3.6B
Change
−11.7M
Date
Q1 2026
|
Elyxium Wealth, LLC | Reduced· Q1 2026 | −$3.6B | −11.7M | – | Q1 2026 | |||||
|
Vanguard
· Added
+$1.1B
Change
+3.6M
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | +$1.1B | +3.6M | – | Q1 2026 | |||||
|
BlackRock
· Reduced
−$1.0B
Change
−3.3M
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | −$1.0B | −3.3M | – | Q1 2026 | |||||
|
Capital Research Global Investors
· New
+$838M
Change
+2.8M
Date
Q1 2026
|
Capital Research Global Investors | New· Q1 2026 | +$838M | +2.8M | – | Q1 2026 | |||||
|
Geode
· Added
+$420M
Change
+1.4M
Date
Q1 2026
|
Geode | Added· Q1 2026 | +$420M | +1.4M | – | Q1 2026 | |||||
|
State Street
· Added
+$368M
Change
+1.2M
Date
Q1 2026
|
State Street | Added· Q1 2026 | +$368M | +1.2M | – | Q1 2026 | |||||
|
T. Rowe Price Associates
· Added
+$363M
Change
+1.2M
Date
Q1 2026
|
T. Rowe Price Associates | Added· Q1 2026 | +$363M | +1.2M | – | Q1 2026 | |||||
|
BNP Paribas Asset Management Holding S.A.
· Reduced
−$290M
Change
−952K
Date
Q1 2026
|
BNP Paribas Asset Management Holding S.A. | Reduced· Q1 2026 | −$290M | −952K | – | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· Reduced
−$259M
Change
−848K
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Reduced· Q1 2026 | −$259M | −848K | – | Q1 2026 | |||||
|
Norges
· Exited
−$248M
Change
−812K
Δ Own
−100.0%
Date
Q1 2026
|
Norges | Exited· Q1 2026 | −$248M | −812K | −100.0% | Q1 2026 | |||||
|
Lone Pine Capital LLC
· New
+$247M
Change
+810K
Date
Q1 2026
|
Lone Pine Capital LLC | New· Q1 2026 | +$247M | +810K | – | Q1 2026 | |||||
|
Atreides Management, LP
· Reduced
−$229M
Change
−751K
Date
Q1 2026
|
Atreides Management, LP | Reduced· Q1 2026 | −$229M | −751K | – | Q1 2026 | |||||
|
William Blair Investment Management, LLC
· Reduced
−$213M
Change
−700K
Date
Q1 2026
|
William Blair Investment Management, LLC | Reduced· Q1 2026 | −$213M | −700K | – | Q1 2026 | |||||
|
Whale Rock Capital Management LLC
· Reduced
−$202M
Change
−662K
Δ Own
−74.1%
Date
Q1 2026
|
Whale Rock Capital Management LLC | Reduced· Q1 2026 | −$202M | −662K | −74.1% | Q1 2026 | |||||
|
JPMorgan Chase & Co
· Reduced
−$194M
Change
−638K
Date
Q1 2026
|
JPMorgan Chase & Co | Reduced· Q1 2026 | −$194M | −638K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Smith Gary B.
· Director
Sell
−$1.2M
|
Smith Gary B. | Director | Sell | $421.10 | −3K | −$1.2M | 252K | −1.2% | Jul 15, 2026 | Jul 17, 2026 | |||||||||
|
Rothenstein David M.
· Officer
Sell
−$1.1M
|
Rothenstein David M. | Officer | Sell | $420.91 | −2K | −$1.1M | 183K | −1.3% | Jul 15, 2026 | Jul 17, 2026 | |||||||||
|
Gage Brodie
· Officer
Sell
−$539K
|
Gage Brodie | Officer | Sell | $449.15 | −1K | −$539K | 40K | −2.9% | Jul 15, 2026 | Jul 17, 2026 | |||||||||
|
Diperna Dino
· Officer
2 operations
−$351K
|
Diperna Dino | Officer | 2 operations | $449.15 | −782 | −$351K | 40K | −1.9% | Jul 15, 2026 | Jul 17, 2026 | |||||||||
|
Kosaraju Sheela
· Officer
Sell
−$938K
|
Kosaraju Sheela | Officer | Sell | $466.20 | −2K | −$938K | 88K | −2.2% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Graff Marc D.
· Officer
Sell
−$59K
|
Graff Marc D. | Officer | Sell | $466.20 | −126 | −$59K | 127K | −0.1% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Phipps Jason
· Officer
Sell
−$1.2M
|
Phipps Jason | Officer | Sell | $466.20 | −3K | −$1.2M | 62K | −4.0% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Smith Gary B.
· Director
Sell
−$1.4M
|
Smith Gary B. | Director | Sell | $468.83 | −3K | −$1.4M | 255K | −1.1% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Cumello Joseph
· Officer
Sell
−$740K
|
Cumello Joseph | Officer | Sell | $466.33 | −2K | −$740K | 43K | −3.6% | Jun 26, 2026 | Jun 30, 2026 | |||||||||
|
Graff Marc D.
· Officer
Sell
−$57K
|
Graff Marc D. | Officer | Sell | $449.36 | −126 | −$57K | 127K | −0.1% | Jun 24, 2026 | Jun 26, 2026 | |||||||||
|
Hoffman Grant
· Officer
Grant (A)
7K
|
Hoffman Grant | Officer | Grant (A) | – | 7K | – | 7K | – | Jun 22, 2026 | Jun 23, 2026 | |||||||||
|
Graff Marc D.
· Officer
Tax withholding or exercise payment (F)
-$85K
|
Graff Marc D. | Officer | Tax withholding or exercise payment (F) | $428.22 | -199 | -$85K | 127K | −0.2% | Jun 20, 2026 | Jun 23, 2026 | |||||||||
|
Smith Gary B.
· Director
4 operations
-$3.8M
|
Smith Gary B. | Director | 4 operations | $428.22 | -9K | -$3.8M | 258K | −3.3% | Jun 20, 2026 | Jun 23, 2026 | |||||||||
|
Rothenstein David M.
· Officer
5 operations
-$1.0M
|
Rothenstein David M. | Officer | 5 operations | $428.22 | -2K | -$1.0M | 185K | −1.3% | Jun 20, 2026 | Jun 23, 2026 | |||||||||
|
Phipps Jason
· Officer
4 operations
-$1.0M
|
Phipps Jason | Officer | 4 operations | $428.22 | -2K | -$1.0M | 65K | −3.5% | Jun 20, 2026 | Jun 23, 2026 | |||||||||
N
A
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A
A
1,065 reporting institutions disclosed CIEN 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.