Plexus Corp (PLXS) insider trading
Recent insider transactions reported to the SEC on Form 4 — directors and officers buying or selling their own company’s stock. Sourced directly from public SEC filings, latest filed Sep 17, 2026.
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- Filings shown
- 8
- Open-market buys
- 0
- Open-market sells
- 13
Counts cover the 8 most recent Form 4 filings Tradune holds for PLXS (filed Jun 8 – Sep 17, 2026); the score below covers only the trailing 90 days (0 buys, 6 sells). No completed check of PLXS's Form 4 list on SEC EDGAR is on record yet; the latest PLXS filing Tradune holds was filed Sep 17, 2026. This is not guaranteed to be the complete record — see PLXS's full Form 4 filing history on SEC EDGAR.
Open-market activity, last 90 days
Purchases (Form 4 code P) and sales (code S) on the 5 filings Tradune holds for PLXS filed Aug 13 – Sep 17, 2026. Grants, exercises, tax withholding and the other Form 4 transaction codes are left out.
6 open-market sales by Rule 10b5-1 checkbox
- On filings with the 10b5-1 box checked
- 6 sales· 7,500 sh
- checkbox disclosed
- On filings with the box not checked
- 0 sales· 0 sh
- not proof that no plan exists
- Not comparable
- 0 sales· 0 sh
- filed before Apr 1, 2023, or no checkbox value in the filing data
Counts are Form 4 lines as filed. The checkbox is one per filing, so every sale on a filing with the box checked is counted there even if only some of its transactions were under a plan; it records what the filer disclosed, and the three categories are not a judgement about why a sale was made.
| Insider | Buys | Sells | Shares bought | Shares sold | Value |
|---|---|---|---|---|---|
| Todd P. KelseyPresident & CEO | 0 | 4 | — | 3,000 | −$740,082 |
| Michael V. SchrockDirector | 0 | 1 | — | 4,000 | −$1,100,000 |
| Karen Marie RappDirector | 0 | 1 | — | 500 | −$120,435 |
Value = shares × the price reported on each Form 4 (+ purchases, − sales); every open-market line in this window disclosed a price.
Summarises ~90 days of public SEC Form 4 activity — more distinct buyers, officer involvement and net buying score higher. A description of filing activity, not a rating or buy signal. How this score is computed →
How to read this: an open-market purchase (Form 4 code P) is a buy at the market price with the insider’s own money, as opposed to a grant, award or option exercise; an open-market sale is code S. When two or more distinct insiders report open-market purchases in the same 90-day window, this site labels that a cluster — a definition, not a forecast; see insider cluster buying. “Held after” is Form 4 Table I column 5; “Change” = shares ÷ holdings before the trade (held after − shares for an acquisition, held after + shares for a disposition).
Insider Buying at PLXS
No open-market insider purchases (Form 4 code P) were reported for PLXS between Jun 8, 2026 and Sep 17, 2026. The filings below may include other transaction types — sales, grants, option exercises, and tax withholding — shown for completeness; they are not open-market purchases.
Recent Form 4 filings
Source: SEC EDGAR Form 4 · transaction codes explained
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale 10b5-1 box checked | 1,500 | $242.41 | 64,388 | −2.3% | Sep 16, 2026 |
† change in this filer’s own reported holding line (Form 4 Table I, col. 5), not of total company ownership; small prior holdings produce large percentages, so under 100 shares the prior holding is shown instead.
“10b5-1 box checked” = the filer checked the Form 4 box stating that a transaction on the filing was made under a plan intended to satisfy Rule 10b5-1(c); “10b5-1 box not checked” = the box was left blank, which does not prove that no plan exists. The box applies to Form 4s filed from April 1, 2023; older filings, and boxes we could not read, carry no tag. What the 10b5-1 box means.
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Option exercise Restricted Stock Units | 2,500 | — | — | — | Sep 15, 2026 |
| Option exercise | 2,500 | — | 2,500 | — | Sep 15, 2026 |
| Tax withholding | 800 | $238.53 | 1,700 | −32% | Sep 15, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale 10b5-1 box checked | 500 | $240.87 | 7,535 | −6.2% | Aug 31, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale 10b5-1 box checked | 681 | $251.09 | 66,388 | −1.0% | Aug 19, 2026 |
| Open-market sale 10b5-1 box checked | 500 | $252.23 | 65,888 | −0.8% | Aug 19, 2026 |
| Open-market sale 10b5-1 box checked | 319 | $248.79 | 67,069 | −0.5% | Aug 19, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale 10b5-1 box checked | 4,000 | $275.00 | 40,329 | −9.0% | Aug 11, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale 10b5-1 box checked | 500 | $260.51 | 68,388 | −0.7% | Jul 15, 2026 |
| Open-market sale 10b5-1 box checked | 1,000 | $261.07 | 67,388 | −1.5% | Jul 15, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale 10b5-1 box checked | 100 | $292.11 | 70,288 | −0.1% | Jun 17, 2026 |
| Open-market sale 10b5-1 box checked | 300 | $294.19 | 69,988 | −0.4% | Jun 17, 2026 |
| Open-market sale 10b5-1 box checked | 748 | $295.15 | 69,240 | −1.1% | Jun 17, 2026 |
| Open-market sale 10b5-1 box checked | 352 | $296.09 | 68,888 | −0.5% | Jun 17, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale 10b5-1 box not checked | 510 | $272.17 | 665 | −43% | Jun 5, 2026 |
Insider filings reported around the same time
Other companies whose most recent Form 4 was filed closest to PLXS's (Sep 17, 2026).
Frequently asked about PLXS insider activity
How many insiders bought PLXS stock in these Form 4 filings?
No open-market purchases (Form 4 code P) of PLXS shares were reported by Plexus Corp insiders between Jun 8, 2026 and Sep 17, 2026. The 8 filings shown on this page cover other transaction types — sales, grants, option exercises, and tax withholding.
Who filed the most recent Form 4 for PLXS?
The most recent Form 4 on this page was filed by Todd P. Kelsey (President & CEO) on Sep 17, 2026, reporting 1 transaction. The original document is linked from the filing list above on SEC EDGAR. Amended filings (Form 4/A) may later revise reported figures.
What was the largest open-market PLXS insider sale shown?
The largest open-market sale among the filings shown was 4,000 PLXS shares at $275.00 (about $1,100,000) by Michael V. Schrock (Director) on Aug 11, 2026. Value is shares × the price reported on the Form 4; that Form 4 has the Rule 10b5-1 box checked.
New to Form 4s? The transaction codes, the 90-day window and the 0–100 score are defined on the insider-activity score methodology page.
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Track PLXS insider filings free →This score summarizes SEC Form 4 filing activity over the trailing 90 days. It is descriptive, not predictive — not a rating, recommendation, or investment advice. Data: SEC EDGAR (public domain), as filed; amendments may revise figures. Tradune is not a registered investment adviser.
Data as filed; amended filings (Form 4/A) may revise figures. Sales may occur under prearranged Rule 10b5-1 trading plans.