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PLXS Insider Trading & Form 4 Activity

PLEXUS CORP
Last filing: Jun 18, 2026·11 days ago
BEARISH · LAST 90 DAYS
0%
buyers
$0
0 buys
$3.9M
13 sells
-$3.9M
net selling
4
insiders
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ACTIVE SELLING CLUSTER

3 insiders sold a combined $3.5M of PLXS between May 4, 2026 and May 11, 2026.

Kelsey Todd P., Ninivaggi Angelo Michael JR, Tan Victor (pang Hau)

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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Kelsey Todd P.
President & CEO
$2.3M
-$2.3M
Ninivaggi Angelo Michael JR
EVP, Chief Legal & PAO & Secy
$1.5M
-$1.5M
Tan Victor (pang Hau)
Regional President - APAC
$814K
-$814K
Running Michael J.
Regional President - AMER
$139K
-$139K
Rapp Karen Marie
Insider
$135K
-$135K
Jermain Patrick John
Exec. VP & CFO
$0

Recent transactions

Every Form 4 transaction for PLXS, newest first.

SELL10b5-1
Kelsey Todd P. · President & CEO
Tx Jun 17·Filed Jun 18·EDGAR ↗
300 sh @ $294.19
$88K
SELL10b5-1
Kelsey Todd P. · President & CEO
Tx Jun 17·Filed Jun 18·EDGAR ↗
352 sh @ $296.09
$104K
SELL10b5-1
Kelsey Todd P. · President & CEO
Tx Jun 17·Filed Jun 18·EDGAR ↗
748 sh @ $295.15
$221K
SELL10b5-1
Kelsey Todd P. · President & CEO
Tx Jun 17·Filed Jun 18·EDGAR ↗
100 sh @ $292.11
$29K
SELL
Running Michael J. · Regional President - AMER
Tx Jun 5·Filed Jun 8·EDGAR ↗
510 sh @ $272.17
$139K
SELL
Kelsey Todd P. · President & CEO
Tx Jun 3·Filed Jun 4·EDGAR ↗
1,000 sh @ $290.00
$290K
SELL10b5-1
Rapp Karen Marie · Insider
Tx Jun 1·Filed Jun 3·EDGAR ↗
500 sh @ $270.00
$135K
SELL10b5-1
Kelsey Todd P. · President & CEO
Tx May 20·Filed May 22·EDGAR ↗
800 sh @ $253.26
$203K
SELL10b5-1
Kelsey Todd P. · President & CEO
Tx May 20·Filed May 22·EDGAR ↗
700 sh @ $252.20
$177K
SELL
Tan Victor (pang Hau) · Regional President - APAC
Tx May 11·Filed May 13·EDGAR ↗
3,000 sh @ $271.23
$814K
SELL
Ninivaggi Angelo Michael JR · EVP, Chief Legal & PAO & Secy
Tx May 8·Filed May 11·EDGAR ↗
1,484 sh @ $264.11
$392K
SELL
Ninivaggi Angelo Michael JR · EVP, Chief Legal & PAO & Secy
Tx May 8·Filed May 11·EDGAR ↗
224 sh @ $266.01
$60K
SELL
Ninivaggi Angelo Michael JR · EVP, Chief Legal & PAO & Secy
Tx May 8·Filed May 11·EDGAR ↗
1,562 sh @ $265.18
$414K
SELL
Ninivaggi Angelo Michael JR · EVP, Chief Legal & PAO & Secy
Tx May 7·Filed May 11·EDGAR ↗
1,294 sh @ $262.43
$340K
SELL
Ninivaggi Angelo Michael JR · EVP, Chief Legal & PAO & Secy
Tx May 7·Filed May 11·EDGAR ↗
945 sh @ $263.66
$249K
SELL
Ninivaggi Angelo Michael JR · EVP, Chief Legal & PAO & Secy
Tx May 7·Filed May 11·EDGAR ↗
59 sh @ $264.38
$16K
OTHER
Jermain Patrick John · Exec. VP & CFO
Tx May 6·Filed May 8·EDGAR ↗
3,815 sh @ $268.94
$1.0M
SELL
Kelsey Todd P. · President & CEO
Tx May 6·Filed May 6·EDGAR ↗
1,000 sh @ $270.75
$271K
SELL
Kelsey Todd P. · President & CEO
Tx May 5·Filed May 6·EDGAR ↗
1,000 sh @ $267.10
$267K
SELL
Kelsey Todd P. · President & CEO
Tx May 4·Filed May 6·EDGAR ↗
1,403 sh @ $263.00
$369K
SELL
Kelsey Todd P. · President & CEO
Tx May 4·Filed May 6·EDGAR ↗
1,000 sh @ $265.15
$265K

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About PLXS insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for PLXS from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying PLXS always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on PLEXUS CORP (PLXS) when they form.

Where does PLXS insider trading data come from?

Every Form 4 filing for PLXS is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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