Nasdaq · CIK 0000785786
PLXS PLEXUS CORP
Insider trading from SEC Form 4. Last filing 26 d ago. Close $256.56 on Oct 12, 2026, +93% from the 52-week low and -16% from the high.
In brief
PLEXUS CORP (PLXS) has 158 SEC Form 4 filings on file from 12 insiders, the latest filed on Sep 17, 2026. In the last 90 days insiders made 0 open-market buys worth $0 and 5 open-market sells worth $2.4M, net -$2.4M.
82 open-market trades have been scored at PLXS. The newest: Todd P. Kelsey (President & CEO) sold $364k of stock on Sep 16, 2026, filed Sep 17, 2026, scored 20 (weak), under a 10b5-1 plan. The largest of the 50 shown: Oliver K. Mihm (Exec VP & COO) sold $2.4M on Feb 17, 2026, scored 65 (notable). 2 insiders sold within 14 days of each other around Aug 31, 2026.
25 Form 144 notices of planned sales are on file, the latest filed Aug 19, 2026.
Last 90 days
Price and insider trades, last year
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at PLEXUS CORP, scored: the newest 50 of 82.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 20Weak | Todd P. Kelsey President & CEO sell | $364k 1,500 shares | -2% | - | |
| 13Weak | Karen Marie Rapp director sell | $120k 500 shares | -6% | +80% from low-21% from high | |
| 36Weak | Todd P. Kelsey President & CEO sell | $376k 1,500 shares | -2% | +90% from low-20% from high | |
| 28Weak | Michael Schrock V director sell | $1.1M 4,000 shares | -9% | +110% from low-11% from high | |
| 21Weak | Todd P. Kelsey President & CEO sell | $391k 1,500 shares | -2% | +115% from low-16% from high | |
| 30Weak | Todd P. Kelsey President & CEO sell | $442k 1,500 shares | -2% | +149% from low-0% from high | |
| 56Moderate | Michael J. Running Regional President - AMER sell | $139k 510 shares | -43% | +131% from low-5% from high | |
| 54Moderate | Todd P. Kelsey President & CEO sell | $290k 1,000 shares | -1% | +143% from low0% from high | |
| 21Weak | Karen Marie Rapp director sell | $135k 500 shares | -6% | +129% from low-1% from high | |
| 53Moderate | Todd P. Kelsey President & CEO sell | $275k 1,000 shares | -1% | +127% from low-2% from high | |
| 36Weak | Todd P. Kelsey President & CEO sell | $379k 1,500 shares | -2% | +118% from low-5% from high | |
| 62Notable | Victor (Pang Hau) Tan Regional President - APAC sell | $814k 3,000 shares | -22% | +130% from low0% from high | |
| 65Notable | Angelo Michael Ninivaggi Jr EVP, Chief Legal & PAO & Secy sell | $1.5M 5,568 shares | -26% | +120% from low-2% from high | |
| 65Notable | Todd P. Kelsey President & CEO sell | $1.7M 6,403 shares | -8% | +122% from low-1% from high | |
| 20Weak | Todd P. Kelsey President & CEO sell | $336k 1,500 shares | -2% | +86% from low-4% from high | |
| 19Weak | Todd P. Kelsey President & CEO sell | $291k 1,500 shares | -2% | +76% from low-6% from high | |
| 20Weak | Karen Marie Rapp director sell | $98k 500 shares | -6% | +75% from low-7% from high | |
| 47Moderate | Randy J Martinez director sell | $203k 1,000 shares | -16% | +84% from low-2% from high | |
| 56Moderate | Michael J. Running Regional President - AMER sell | $144k 700 shares | -37% | +84% from low-2% from high | |
| 30Weak | Todd P. Kelsey President & CEO sell | $1.0M 5,231 shares | -6% | +78% from low-5% from high | |
| 65Notable | Oliver K. Mihm Exec VP & COO sell | $2.4M 11,767 shares | -48% | +77% from low-6% from high | |
| 54Moderate | Patrick John Jermain Exec. VP & CFO sell | $467k 2,321 shares | -14% | +79% from low-4% from high | |
| 69Notable | Frank Zycinski Regional President - EMEA sell | $288k 1,399 shares | -100% | +79% from low-4% from high | |
| 55Moderate | Dean A Foate director, other sell | $2.0M 10,000 shares | -9% | +86% from low0% from high | |
| 60Notable | Victor (Pang Hau) Tan Regional President - APAC sell | $617k 3,000 shares | -21% | +86% from low0% from high | |
| 73Notable | Patrick John Jermain Exec. VP & CFO sell | $732k 3,587 shares | -18% | +77% from low-4% from high | |
| 58Moderate | Angelo Michael Ninivaggi Jr Exec VP, CAO, Gen Coun & Secy sell | $874k 4,303 shares | -18% | +81% from low-2% from high | |
| 50Moderate | Dean A Foate director, other sell | $1.0M 5,000 shares | -25% | +85% from low0% from high | |
| 62Notable | Patrick John Jermain Exec. VP & CFO sell | $988k 4,841 shares | -19% | +84% from low-1% from high | |
| 50Moderate | Todd P. Kelsey President & CEO sell | $1.7M 8,120 shares | -9% | +84% from low-1% from high | |
| 42Moderate | Michael J. Running Regional President - AMER sell | $190k 926 shares | -42% | +85% from low0% from high | |
| 18Weak | Karen Marie Rapp director sell | $72k 500 shares | -6% | +29% from low-16% from high | |
| 65Notable | Oliver K. Mihm Exec VP & COO sell | $333k 2,327 shares | -11% | +29% from low-16% from high | |
| 42Moderate | Angelo Michael Ninivaggi Jr Exec VP, CAO, Gen Coun & Secy sell | $195k 1,347 shares | -6% | +30% from low-16% from high | |
| 51Moderate | Patrick John Jermain Exec. VP & CFO sell | $287k 2,000 shares | -11% | +30% from low-16% from high | |
| 58Moderate | Oliver K. Mihm Exec VP & COO sell | $255k 1,748 shares | -8% | +32% from low-14% from high | |
| 50Moderate | Angelo Michael Ninivaggi Jr Exec VP, CAO, Gen Coun & Secy sell | $363k 2,500 shares | -11% | +32% from low-14% from high | |
| 42Moderate | Todd P. Kelsey President & CEO sell | $786k 5,500 shares | -9% | +29% from low-16% from high | |
| 61Notable | Patrick John Jermain Exec. VP & CFO sell | $285k 1,998 shares | -10% | +29% from low-16% from high | |
| 17Weak | Todd P. Kelsey President & CEO sell | $216k 1,500 shares | -2% | +31% from low-15% from high | |
| 32Weak | Todd P. Kelsey President & CEO sell | $202k 1,500 shares | -2% | +22% from low-21% from high | |
| 18Weak | Karen Marie Rapp director sell | $70k 500 shares | -5% | +23% from low-20% from high | |
| 67Notable | Patrick John Jermain Exec. VP & CFO sell | $344k 2,500 shares | -11% | +25% from low-19% from high | |
| 61Notable | Victor (Pang Hau) Tan Regional President - APAC sell | $417k 3,000 shares | -26% | +26% from low-18% from high | |
| 42Moderate | Angelo Michael Ninivaggi Jr Exec VP, CAO, Gen Coun & Secy sell | $217k 1,576 shares | -6% | +24% from low-20% from high | |
| 58Moderate | Oliver K. Mihm Exec VP & COO sell | $274k 2,102 shares | -9% | +18% from low-23% from high | |
| 61Notable | Patrick John Jermain Exec. VP & CFO sell | $284k 2,178 shares | -8% | +15% from low-25% from high | |
| 32Weak | Todd P. Kelsey President & CEO sell | $188k 1,500 shares | -2% | +13% from low-27% from high | |
| 17Weak | Todd P. Kelsey President & CEO sell | $202k 1,500 shares | -2% | +23% from low-20% from high | |
| 32Weak | Todd P. Kelsey President & CEO sell | $195k 1,500 shares | -2% | +18% from low-23% from high |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 19, 2026 | Todd P. Kelsey President & CEO | 4,500 0.02% of outstanding | $1.2M | Aug 19, 2026 | $1.8M |
| Aug 11, 2026 | SCHROCK MICHAEL V Director | 4,000 0.01% of outstanding | $1.1M | Aug 11, 2026 | none |
| Jun 5, 2026 | MICHAEL J RUNNING Officer | 510 0.00% of outstanding | $139k | Jun 5, 2026 | none |
| Jun 3, 2026 | TODD P KELSEY & KELLY M LIV T U/A DTD 03/02/2009 Officer, Director | 1,000 0.00% of outstanding | $290k | Jun 3, 2026 | $3.0M |
| Jun 1, 2026 | KAREN M RAPP Director | 1,000 0.00% of outstanding | $268k | Jun 1, 2026 | none |
| May 27, 2026 | TODD P KELSEY & KELLY M LIV T U/A DTD 03/02/2009 Officer, Director | 1,000 0.00% of outstanding | $275k | May 27, 2026 | $2.7M |
| May 20, 2026 | Todd P. Kelsey President & CEO | 4,500 0.02% of outstanding | $1.1M | May 20, 2026 | $1.7M |
| May 13, 2026 | PATRICK JERMAIN Officer | 3,312 0.01% of outstanding | $870k | May 13, 2026 | $1.0M |
| May 11, 2026 | PANG HAU (VICTOR) TAN Officer | 3,000 0.01% of outstanding | $814k | May 11, 2026 | none |
| May 8, 2026 | ANGELO M NINIVAGGI Officer | 3,270 0.01% of outstanding | $866k | May 8, 2026 | $604k |
| May 8, 2026 | SCHROCK MICHAEL V Director | 7,550 0.03% of outstanding | $2.0M | May 8, 2026 | none |
| May 7, 2026 | ANGELO M NINIVAGGI Officer | 2,298 0.01% of outstanding | $604k | May 7, 2026 | none |
| May 6, 2026 | TODD P KELSEY & KELLY M LIV T U/A DTD 03/02/2009 Officer, Director | 1,000 0.00% of outstanding | $271k | May 6, 2026 | $3.1M |
| May 5, 2026 | Patrick J. Jermain Exec VP & CFO | 3,815 0.01% of outstanding | $1.0M | May 5, 2026 | $467k |
| May 5, 2026 | TODD P KELSEY & KELLY M LIV T U/A DTD 03/02/2009 Officer, Director | 3,000 0.01% of outstanding | $805k | May 5, 2026 | $2.3M |
| May 4, 2026 | TODD P KELSEY & KELLY M LIV T U/A DTD 03/02/2009 Officer, Director | 2,403 0.01% of outstanding | $634k | May 4, 2026 | $1.7M |
| Feb 25, 2026 | Randy J Martinez Director | 1,000 0.00% of outstanding | $203k | Feb 25, 2026 | none |
| Feb 25, 2026 | MICHAEL J RUNNING Officer | 700 0.00% of outstanding | $144k | Feb 25, 2026 | $190k |
| Feb 18, 2026 | Todd P. Kelsey President & CEO | 9,731 0.04% of outstanding | $1.9M | Feb 18, 2026 | $1.7M |
| Feb 18, 2026 | OLIVER MIHM Officer | 9,541 0.04% of outstanding | $1.9M | Feb 18, 2026 | $776k |
| Feb 17, 2026 | OLIVER MIHM Officer | 2,226 0.01% of outstanding | $442k | Feb 17, 2026 | $333k |
| Feb 12, 2026 | PATRICK JERMAIN Officer | 2,321 0.01% of outstanding | $467k | Feb 12, 2026 | $1.7M |
| Feb 12, 2026 | FRANK B ZYCINSKI Officer | 1,399 0.01% of outstanding | $288k | Feb 12, 2026 | none |
| Feb 6, 2026 | PANG HAU (VICTOR) TAN Officer | 3,000 0.01% of outstanding | $617k | Feb 6, 2026 | none |
| Feb 5, 2026 | ANGELO M NINIVAGGI Officer | 4,303 0.02% of outstanding | $874k | Feb 5, 2026 | $558k |
Transactions
The newest 50 of 337 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 16, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -1,500 | $242.41 | $364k | 64,388 | 26 d ago |
| Sep 15, 2026 | David Westen Abuhl Sr. VP & CFO | MOption exercise Common Stock, $.01 par value | +2,500 | - | - | 2,500 | 27 d ago |
| Sep 15, 2026 | David Westen Abuhl Sr. VP & CFO | FTax withholding Common Stock, $.01 par value | -800 | $238.53 | $191k | 1,700 | 27 d ago |
| Sep 15, 2026 | David Westen Abuhl Sr. VP & CFO | MOption exercise Restricted Stock Unitsderivative | -2,500 | - | - | 5,000 | 27 d ago |
| Aug 31, 2026 | Karen Marie Rapp director | SOpen-market sale Common Stock, $.01 par value10b5-1 | -500 | $240.87 | $120k | 7,535 | 42 d ago |
| Aug 19, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -319 | $248.79 | $79k | 67,069 | Aug 20, 2026 |
| Aug 19, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -681 | $251.09 | $171k | 66,388 | Aug 20, 2026 |
| Aug 19, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -500 | $252.23 | $126k | 65,888 | Aug 20, 2026 |
| Aug 11, 2026 | Michael Schrock V director | SOpen-market sale Common Stock, $.01 par value10b5-1 | -4,000 | $275.00 | $1.1M | 40,329 | Aug 13, 2026 |
| Jul 15, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -500 | $260.51 | $130k | 68,388 | Jul 16, 2026 |
| Jul 15, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -1,000 | $261.07 | $261k | 67,388 | Jul 16, 2026 |
| Jun 17, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -100 | $292.11 | $29k | 70,288 | Jun 18, 2026 |
| Jun 17, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -300 | $294.19 | $88k | 69,988 | Jun 18, 2026 |
| Jun 17, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -748 | $295.15 | $221k | 69,240 | Jun 18, 2026 |
| Jun 17, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -352 | $296.09 | $104k | 68,888 | Jun 18, 2026 |
| Jun 5, 2026 | Michael J. Running Regional President - AMER | SOpen-market sale Common Stock, $.01 par value | -510 | $272.17 | $139k | 665 | Jun 8, 2026 |
| Jun 3, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value | -1,000 | $290.00 | $290k | 70,388 | Jun 4, 2026 |
| Jun 1, 2026 | Karen Marie Rapp director | SOpen-market sale Common Stock, $.01 par value10b5-1 | -500 | $270.00 | $135k | 8,035 | Jun 3, 2026 |
| May 27, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value | -1,000 | $274.75 | $275k | 71,388 | May 29, 2026 |
| May 20, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -700 | $252.20 | $177k | 73,188 | May 22, 2026 |
| May 20, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -800 | $253.26 | $203k | 72,388 | May 22, 2026 |
| May 11, 2026 | Victor (Pang Hau) Tan Regional President - APAC | SOpen-market sale Common Stock, $.01 par value | -3,000 | $271.23 | $814k | 10,457 | May 13, 2026 |
| May 7, 2026 | Angelo Michael Ninivaggi Jr EVP, Chief Legal & PAO & Secy | SOpen-market sale Common Stock, $.01 par value | -1,294 | $262.43 | $340k | 20,540 | May 11, 2026 |
| May 7, 2026 | Angelo Michael Ninivaggi Jr EVP, Chief Legal & PAO & Secy | SOpen-market sale Common Stock, $.01 par value | -945 | $263.66 | $249k | 19,595 | May 11, 2026 |
| May 7, 2026 | Angelo Michael Ninivaggi Jr EVP, Chief Legal & PAO & Secy | SOpen-market sale Common Stock, $.01 par value | -59 | $264.38 | $16k | 19,536 | May 11, 2026 |
| May 8, 2026 | Angelo Michael Ninivaggi Jr EVP, Chief Legal & PAO & Secy | SOpen-market sale Common Stock, $.01 par value | -1,484 | $264.11 | $392k | 18,052 | May 11, 2026 |
| May 8, 2026 | Angelo Michael Ninivaggi Jr EVP, Chief Legal & PAO & Secy | SOpen-market sale Common Stock, $.01 par value | -1,562 | $265.18 | $414k | 16,490 | May 11, 2026 |
| May 8, 2026 | Angelo Michael Ninivaggi Jr EVP, Chief Legal & PAO & Secy | SOpen-market sale Common Stock, $.01 par value | -224 | $266.01 | $60k | 16,266 | May 11, 2026 |
| May 6, 2026 | Patrick John Jermain Exec. VP & CFO | IDiscretionary transaction Common Stock, $.01 par valueindirect: 401(k) | -3,815 | $268.94 | $1.0M | 0 | May 8, 2026 |
| May 4, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value | -1,403 | $263.00 | $369k | 78,888 | May 6, 2026 |
| May 4, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value | -1,000 | $265.15 | $265k | 77,888 | May 6, 2026 |
| May 5, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value | -1,000 | $267.10 | $267k | 76,888 | May 6, 2026 |
| May 5, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value | -1,000 | $268.75 | $269k | 75,888 | May 6, 2026 |
| May 5, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value | -1,000 | $269.50 | $270k | 74,888 | May 6, 2026 |
| May 6, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value | -1,000 | $270.75 | $271k | 73,888 | May 6, 2026 |
| Apr 15, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -1,500 | $224.09 | $336k | 80,291 | Apr 16, 2026 |
| Mar 18, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -1,500 | $194.24 | $291k | 81,791 | Mar 19, 2026 |
| Feb 27, 2026 | Karen Marie Rapp director | SOpen-market sale Common Stock, $.01 par value10b5-1 | -500 | $195.59 | $98k | 8,535 | Mar 2, 2026 |
| Feb 25, 2026 | Randy J Martinez director | SOpen-market sale Common Stock, $.01 par value | -1,000 | $203.14 | $203k | 5,201 | Feb 27, 2026 |
| Feb 25, 2026 | Michael J. Running Regional President - AMER | SOpen-market sale Common Stock, $.01 par value | -700 | $205.47 | $144k | 1,175 | Feb 27, 2026 |
| Feb 17, 2026 | Michael J. Running Regional President - AMER | MOption exercise Common Stock, $.01 par value | +1,096 | - | - | 2,391 | Feb 19, 2026 |
| Feb 17, 2026 | Angelo Michael Ninivaggi Jr EVP, Chief Legal & PAO & Secy | MOption exercise Common Stock, $.01 par value | +3,275 | - | - | 23,374 | Feb 19, 2026 |
| Feb 17, 2026 | Todd P. Kelsey President & CEO | MOption exercise Common Stock, $.01 par value10b5-1 | +18,726 | - | - | 97,324 | Feb 19, 2026 |
| Feb 17, 2026 | Victor (Pang Hau) Tan Regional President - APAC | MOption exercise Common Stock, $.01 par value | +2,022 | - | - | 13,457 | Feb 19, 2026 |
| Feb 17, 2026 | Angelo Michael Ninivaggi Jr EVP, Chief Legal & PAO & Secy | FTax withholding Common Stock, $.01 par value | -1,540 | $195.95 | $302k | 21,834 | Feb 19, 2026 |
| Feb 17, 2026 | Michael J. Running Regional President - AMER | FTax withholding Common Stock, $.01 par value | -516 | $195.95 | $101k | 1,875 | Feb 19, 2026 |
| Feb 17, 2026 | Victor (Pang Hau) Tan Regional President - APAC | AGrant or award Performance Stock Unitsderivative | +602 | - | - | 2,022 | Feb 19, 2026 |
| Feb 17, 2026 | Oliver K. Mihm Exec VP & COO | MOption exercise Common Stock, $.01 par value | +4,357 | - | - | 26,624 | Feb 19, 2026 |
| Feb 17, 2026 | Todd P. Kelsey President & CEO | FTax withholding Common Stock, $.01 par value10b5-1 | -8,802 | $195.95 | $1.7M | 88,522 | Feb 19, 2026 |
| Feb 18, 2026 | Todd P. Kelsey President & CEO | SOpen-market sale Common Stock, $.01 par value10b5-1 | -1,155 | $194.47 | $225k | 87,367 | Feb 19, 2026 |
Insiders
Everyone who has filed a Form 4 here.
- David Westen AbuhlSr. VP & CFO
- Dean A Foatedirector, other
- Patrick John JermainExec. VP & CFO
- Todd P. KelseyCEO
- Randy J Martinezdirector
- Oliver K. MihmExec VP & COO
- Angelo Michael Ninivaggi JrExec VP, CAO, Gen Coun & Secy
- Karen Marie Rappdirector
- Michael J. RunningRegional President - AMER
- Michael Schrock Vdirector
- Victor (Pang Hau) TanRegional President - APAC
- Frank ZycinskiRegional President - EMEA
Questions about PLXS
Answered from the filings on this page, as of the latest one.
Are insiders buying PLXS?
As of Sep 17, 2026, SEC Form 4 filings show 0 open-market buys worth $0 by 0 insiders and 5 open-market sells worth $2.4M by 3 insiders at PLEXUS CORP in the last 90 days, net -$2.4M. Only purchases (code P) and sales (code S) count; grants, option exercises and tax withholding do not.
Who was the last insider to trade PLXS on the open market?
Todd P. Kelsey (President & CEO) sold $364k of PLXS on Sep 16, 2026 and filed the Form 4 on Sep 17, 2026. InsiderTell scored 20 (weak), under a 10b5-1 plan.
How many insiders file Form 4 at PLEXUS CORP?
12 people have filed a Form 4 at PLEXUS CORP, among them David Westen Abuhl (Sr. VP & CFO), Dean A Foate (director), Patrick John Jermain (Exec. VP & CFO). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.