Vaughan Nelson Investment Management, L.P.
· New
Change
+1.2M
Date
Q1 2026
PL
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Vaughan Nelson Investment Management, L.P.
· New
Change
+1.2M
Date
Q1 2026
|
Vaughan Nelson Investment Management, L.P. | New· Q1 2026 | – | +1.2M | – | Q1 2026 | |||||
|
BlackRock
· Added
Change
+559K
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | – | +559K | – | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· Exited
Change
−535K
Δ Own
−100.0%
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Exited· Q1 2026 | – | −535K | −100.0% | Q1 2026 | |||||
|
Polar Capital Holdings PLC
· New
Change
+513K
Date
Q1 2026
|
Polar Capital Holdings PLC | New· Q1 2026 | – | +513K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Reduced
Change
−435K
Δ Own
−98.0%
Date
Q1 2026
|
Citadel Advisors LLC | Reduced· Q1 2026 | – | −435K | −98.0% | Q1 2026 | |||||
|
Morgan Stanley
· Reduced
Change
−382K
Date
Q1 2026
|
Morgan Stanley | Reduced· Q1 2026 | – | −382K | – | Q1 2026 | |||||
|
Norges
· Exited
Change
−361K
Δ Own
−100.0%
Date
Q1 2026
|
Norges | Exited· Q1 2026 | – | −361K | −100.0% | Q1 2026 | |||||
|
American Century Companies Inc
· Added
Change
+359K
Date
Q1 2026
|
American Century Companies Inc | Added· Q1 2026 | – | +359K | – | Q1 2026 | |||||
|
Walleye Trading LLC
· Exited
Change
−353K
Δ Own
−100.0%
Date
Q1 2026
|
Walleye Trading LLC | Exited· Q1 2026 | – | −353K | −100.0% | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Added
Change
+259K
Date
Q1 2026
|
Qube Research & Technologies Ltd | Added· Q1 2026 | – | +259K | – | Q1 2026 | |||||
|
Allianz Asset Management GMBH
· Added
Change
+252K
Date
Q1 2026
|
Allianz Asset Management GMBH | Added· Q1 2026 | – | +252K | – | Q1 2026 | |||||
|
Barrow Hanley Mewhinney & Strauss LLC
· Reduced
Change
−225K
Date
Q1 2026
|
Barrow Hanley Mewhinney & Strauss LLC | Reduced· Q1 2026 | – | −225K | – | Q1 2026 | |||||
|
Victory Capital Management Inc
· Reduced
Change
−204K
Date
Q1 2026
|
Victory Capital Management Inc | Reduced· Q1 2026 | – | −204K | – | Q1 2026 | |||||
|
Janus Henderson Group PLC
· Added
Change
+202K
Date
Q1 2026
|
Janus Henderson Group PLC | Added· Q1 2026 | – | +202K | – | Q1 2026 | |||||
|
Denali Advisors LLC
· Reduced
Change
−185K
Date
Q1 2026
|
Denali Advisors LLC | Reduced· Q1 2026 | – | −185K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Zhang Rui
· Officer
Sell
−$213K
|
Zhang Rui | Officer | Sell | $46.70 | −5K | −$213K | 27K | – | Apr 17, 2026 | Apr 21, 2026 | |||||||||
|
Paladino Mary
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$1.1M
|
Paladino Mary | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $47.77 | -23K | -$1.1M | 1K | – | Apr 17, 2026 | Apr 21, 2026 | |||||||||
|
Lee Kang Jyh
· Director
2 operations
−$918K
|
Lee Kang Jyh | Director | 2 operations | $45.80–$46.05 | −20K | −$918K | 356K | – | Apr 16, 2026 | Apr 20, 2026 | |||||||||
|
Lee Kang Jyh
· Director
Sell
−$451K
|
Lee Kang Jyh | Director | Sell | $45.10 | −10K | −$451K | 376K | – | Apr 15, 2026 | Apr 17, 2026 | |||||||||
|
Wang Hsueh-Chun
· Officer
Sell
−$872K
|
Wang Hsueh-Chun | Officer | Sell | $45.30 | −19K | −$872K | 114K | – | Apr 14, 2026 | Apr 16, 2026 | |||||||||
|
Macricostas Constantine S.
· Director
Sell
−$2.3M
|
Macricostas Constantine S. | Director | Sell | $45.35 | −50K | −$2.3M | 0 | – | Apr 14, 2026 | Apr 14, 2026 | |||||||||
|
Tyson Mitchell G.
· Director
Grant (A)
4K
|
Tyson Mitchell G. | Director | Grant (A) | – | 4K | – | 37K | – | Apr 13, 2026 | Apr 15, 2026 | |||||||||
|
Garcia David A.
· Director
Grant (A)
4K
|
Garcia David A. | Director | Grant (A) | – | 4K | – | 15K | – | Apr 13, 2026 | Apr 15, 2026 | |||||||||
|
Almeida Michelle
· Director
Grant (A)
4K
|
Almeida Michelle | Director | Grant (A) | – | 4K | – | 5K | – | Apr 13, 2026 | Apr 15, 2026 | |||||||||
|
Liao Daniel Jl
· Director
Grant (A)
4K
|
Liao Daniel Jl | Director | Grant (A) | – | 4K | – | 73K | – | Apr 13, 2026 | Apr 15, 2026 | |||||||||
|
Lewis Adam M.
· Director
Grant (A)
4K
|
Lewis Adam M. | Director | Grant (A) | – | 4K | – | 35K | – | Apr 13, 2026 | Apr 15, 2026 | |||||||||
|
Macricostas Constantine S.
· Director
Grant (A)
4K
|
Macricostas Constantine S. | Director | Grant (A) | – | 4K | – | 415K | – | Apr 13, 2026 | Apr 15, 2026 | |||||||||
|
Lee Kang Jyh
· Director
Sell
−$225K
|
Lee Kang Jyh | Director | Sell | $45.00 | −5K | −$225K | 386K | – | Apr 13, 2026 | Apr 15, 2026 | |||||||||
|
Lee Kang Jyh
· Director
2 operations
0
|
Lee Kang Jyh | Director | 2 operations | $8.60 | 0 | – | 0 | – | Apr 13, 2026 | Apr 15, 2026 | |||||||||
|
Rivera Eric
· Officer
Sell
−$45K
|
Rivera Eric | Officer | Sell | $44.77 | −1K | −$45K | 136K | – | Apr 13, 2026 | Apr 15, 2026 | |||||||||
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322 reporting institutions disclosed PLAB 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.