Home

JOSEPH P KEITHLEY

CIK 1073329 · Director, Chairman, CEO · last filed 2023-12-14

JOSEPH P KEITHLEY is a Director, Chairman, CEO who has filed 174 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for ACLS, was dated May 30, 2024. Across all open-market trades the lifetime net is −$6.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $22.9M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Loading insider history…
Disclosed Exposure

$22.91M

Companies

5

Total Filings

174

Lifetime Open-Market Net

-$6.77M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
ACLS Director 3,157 $136.42 $430.7K -$5.03M 37 2023-12-14
NDSN Director 51,497 $288.98 $14.88M -$1.11M 44 2020-11-03
MTRN Director 30,908 $245.12 $7.58M -$404.8K 27 2018-03-09
KEITHLEY INSTRUMENTS INC (KEI) Delisted Director, Chairman, CEO 23,031 — — $248.2K 44 2010-12-09
BW Director 2,262 $9.89 $22.4K -$474.0K 18 2010-05-10

Recent Filings

174 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2024-05-30 ACLS Notice (144) −3,157 -$358.2K EDGAR
2023-12-14 ACLS Sell (S) −500 -$70.2K EDGAR
2023-11-13 ACLS Sell (S) −500 -$65.2K EDGAR
2023-11-06 ACLS Notice (144) −2,875 -$372.4K EDGAR
2023-08-07 ACLS Notice (144) −2,875 -$505.3K EDGAR
2023-06-14 ACLS Sell (S) −500 -$90.9K EDGAR
2023-06-07 ACLS Sell (S) −1,000 -$173.0K EDGAR
2023-06-06 ACLS Sell (S) −1,000 -$163.5K EDGAR
2023-06-06 ACLS Sell (S) −1,000 -$152.2K EDGAR
2023-05-25 ACLS Sell (S) −1,000 -$152.2K EDGAR
Showing 1–10 of 174
Page 1 of 18
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.