Fiduciary Management Inc
· Exited
Change
−1.3M
Δ Own
−100.0%
Date
Q1 2026
PL
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Fiduciary Management Inc
· Exited
Change
−1.3M
Δ Own
−100.0%
Date
Q1 2026
|
Fiduciary Management Inc | Exited· Q1 2026 | – | −1.3M | −100.0% | Q1 2026 | |||||
|
Alliancebernstein L.P.
· Added
Change
+571K
Date
Q1 2026
|
Alliancebernstein L.P. | Added· Q1 2026 | – | +571K | – | Q1 2026 | |||||
|
Westfield Capital Management Co LP
· Added
Change
+379K
Date
Q1 2026
|
Westfield Capital Management Co LP | Added· Q1 2026 | – | +379K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+294K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +294K | – | Q1 2026 | |||||
|
Dimensional
· Reduced
Change
−254K
Date
Q1 2026
|
Dimensional | Reduced· Q1 2026 | – | −254K | – | Q1 2026 | |||||
|
Emerald Advisers, LLC
· New
Change
+167K
Date
Q1 2026
|
Emerald Advisers, LLC | New· Q1 2026 | – | +167K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Added
Change
+149K
Δ Own
+125.9%
Date
Q1 2026
|
Invesco Ltd. | Added· Q1 2026 | – | +149K | +125.9% | Q1 2026 | |||||
|
Fuller & Thaler Asset Management, Inc.
· Added
Change
+142K
Date
Q1 2026
|
Fuller & Thaler Asset Management, Inc. | Added· Q1 2026 | – | +142K | – | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· Exited
Change
−141K
Δ Own
−100.0%
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Exited· Q1 2026 | – | −141K | −100.0% | Q1 2026 | |||||
|
UBS Group AG
· Reduced
Change
−120K
Date
Q1 2026
|
UBS Group AG | Reduced· Q1 2026 | – | −120K | – | Q1 2026 | |||||
|
Silvercrest Asset Management Group LLC
· Reduced
Change
−118K
Date
Q1 2026
|
Silvercrest Asset Management Group LLC | Reduced· Q1 2026 | – | −118K | – | Q1 2026 | |||||
|
Cartenna Capital, LP
· New
Change
+115K
Date
Q1 2026
|
Cartenna Capital, LP | New· Q1 2026 | – | +115K | – | Q1 2026 | |||||
|
Emerald Mutual Fund Advisers Trust
· New
Change
+102K
Date
Q1 2026
|
Emerald Mutual Fund Advisers Trust | New· Q1 2026 | – | +102K | – | Q1 2026 | |||||
|
Disciplined Growth Investors Inc
· Reduced
Change
−96K
Date
Q1 2026
|
Disciplined Growth Investors Inc | Reduced· Q1 2026 | – | −96K | – | Q1 2026 | |||||
|
BNP Paribas Asset Management Holding S.A.
· Reduced
Change
−89K
Date
Q1 2026
|
BNP Paribas Asset Management Holding S.A. | Reduced· Q1 2026 | – | −89K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Kelsey Todd P.
· Director
2 operations
−$391K
|
Kelsey Todd P. | Director | 2 operations | $260.51–$261.07 | −2K | −$391K | 67K | −2.2% | Jul 15, 2026 | Jul 16, 2026 | |||||||||
|
Kelsey Todd P.
· Director
4 operations
−$442K
|
Kelsey Todd P. | Director | 4 operations | $292.11–$296.09 | −2K | −$442K | 69K | – | Jun 17, 2026 | Jun 18, 2026 | |||||||||
|
Running Michael J.
· Officer
Sell
−$139K
|
Running Michael J. | Officer | Sell | $272.17 | −510 | −$139K | 665 | – | Jun 5, 2026 | Jun 8, 2026 | |||||||||
|
Kelsey Todd P.
· Director
Sell
−$290K
|
Kelsey Todd P. | Director | Sell | $290.00 | −1K | −$290K | 70K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Rapp Karen Marie
· Director
Sell
−$135K
|
Rapp Karen Marie | Director | Sell | $270.00 | −500 | −$135K | 8K | – | Jun 1, 2026 | Jun 3, 2026 | |||||||||
|
Kelsey Todd P.
· Director
Sell
−$275K
|
Kelsey Todd P. | Director | Sell | $274.75 | −1K | −$275K | 71K | – | May 27, 2026 | May 29, 2026 | |||||||||
|
Kelsey Todd P.
· Director
2 operations
−$379K
|
Kelsey Todd P. | Director | 2 operations | $252.20–$253.26 | −2K | −$379K | 72K | – | May 20, 2026 | May 22, 2026 | |||||||||
|
Tan Victor (pang Hau)
· Officer
Sell
−$814K
|
Tan Victor (pang Hau) | Officer | Sell | $271.23 | −3K | −$814K | 10K | – | May 11, 2026 | May 13, 2026 | |||||||||
|
Ninivaggi Angelo Michael Jr
· Officer
3 operations
−$866K
|
Ninivaggi Angelo Michael Jr | Officer | 3 operations | $264.11–$266.01 | −3K | −$866K | 16K | – | May 8, 2026 | May 11, 2026 | |||||||||
|
Ninivaggi Angelo Michael Jr
· Officer
3 operations
−$604K
|
Ninivaggi Angelo Michael Jr | Officer | 3 operations | $262.43–$264.38 | −2K | −$604K | 20K | – | May 7, 2026 | May 11, 2026 | |||||||||
|
Jermain Patrick John
· Officer
Other Form 4 events
-$1.0M
|
Jermain Patrick John | Officer | Other Form 4 events | $268.94 | -4K | -$1.0M | 0 | – | May 6, 2026 | May 8, 2026 | |||||||||
|
Kelsey Todd P.
· Director
Sell
−$271K
|
Kelsey Todd P. | Director | Sell | $270.75 | −1K | −$271K | 74K | – | May 6, 2026 | May 6, 2026 | |||||||||
|
Kelsey Todd P.
· Director
3 operations
−$805K
|
Kelsey Todd P. | Director | 3 operations | $267.10–$269.50 | −3K | −$805K | 75K | – | May 5, 2026 | May 6, 2026 | |||||||||
|
Kelsey Todd P.
· Director
2 operations
−$634K
|
Kelsey Todd P. | Director | 2 operations | $263.00–$265.15 | −2K | −$634K | 78K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Kelsey Todd P.
· Director
Sell
−$336K
|
Kelsey Todd P. | Director | Sell | $224.09 | −2K | −$336K | 80K | – | Apr 15, 2026 | Apr 16, 2026 | |||||||||
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360 reporting institutions disclosed PLXS 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.