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About EXPONENT INC (EXPO)
EXPONENT INC is an SEC registrant, filing under CIK 0000851520, classified as management consulting services. We track it alongside the rest of the Industrials sector.
EXPO Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 1 | 184 | $13K |
| Open-market sale | 2 | 3,444 | $222K |
| Option exercise | 6 | 34,846 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
EXPO insider transactions (Form 4)
8658 Form 4 filings on record, the earliest from Nov 5, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
 Maureen T. F. Reitman - Officer | Option exercise | Common Stock | 5,510 | - footnote F2 | - | |
| Maureen T. F. Reitman - Officer | Tax withholding / forfeiture | Common Stock | 1,756 | $70.03 | $123K | |
| Maureen T. F. Reitman - Officer | Option exercise | Restricted Stock Units | 5,510 | - footnote F2 | - | |
| ||||||
| Joseph Rakow - Officer | Option exercise | Restricted Stock Units | 5,298 | - footnote F2 | - | |
| Joseph Rakow - Officer | Option exercise | Common Stock | 5,298 | - footnote F2 | - | |
| Joseph Rakow - Officer | Tax withholding / forfeiture | Common Stock | 2,353 | $70.03 | $165K | |
| ||||||
| John Pye - Officer | Option exercise | Restricted Stock Units | 5,934 | - footnote F2 | - | |
| John Pye - Officer | Option exercise | Common Stock | 5,934 | - footnote F2 | - | |
| John Pye - Officer | Tax withholding / forfeiture | Common Stock | 2,384 | $70.03 | $167K | |
| ||||||
| Bradley A. James - Officer | Option exercise | Restricted Stock Units | 4,664 | - footnote F2 | - | |
| Bradley A. James - Officer | Option exercise | Common Stock | 4,664 | - footnote F2 | - | |
| Bradley A. James - Officer | Tax withholding / forfeiture | Common Stock | 1,559 | $70.03 | $109K | |
| ||||||
| Catherine Corrigan - Officer | Tax withholding / forfeiture | Common Stock | 6,156 | $70.03 | $431K | |
| Catherine Corrigan - Officer | Option exercise | Restricted Stock Units | 12,716 | - footnote F2 | - | |
| Catherine Corrigan - Officer | Option exercise | Common Stock | 12,716 | - footnote F2 | - | |
| ||||||
| Maureen T. F. Reitman - Officer | Gift | Common Stock | 140 | - footnote F1 | - | |
| ||||||
| Catherine Corrigan - Officer | Grant or award | Incentive Stock Option (right to buy) | 1,425 | - footnote F2 | - | |
| Catherine Corrigan - Officer | Grant or award | Non-Qualified Stock Option (right to buy) | 27,075 | - footnote F2 | - | |
| ||||||
| Richard L. Schlenker Jr. - Officer | Grant or award | Incentive Stock Option (right to buy) | 1,425 | - footnote F2 | - | |
| Richard L. Schlenker Jr. - Officer | Grant or award | Non-Qualified Stock Option (right to buy) | 17,575 | - footnote F2 | - | |
| ||||||
| Catherine Corrigan - Officer | Option exercise | Common Stock | 3,226 | $25.41 | $82K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 2,218 | $67.16 | $149K | |
| Catherine Corrigan - Officer | Option exercise | Common Stock | 2,380 | $29.05 | $69K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 1,702 | $67.14 | $114K | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 3,226 | - footnote F3 | - | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 2,380 | - footnote F3 | - | |
| ||||||
| Richard L. Schlenker Jr. - Officer | Option exercise | Common Stock | 4,230 | $23.63 | $100K | |
| Richard L. Schlenker Jr. - Officer | Option exercise | Incentive Stock Option (right to buy) | 4,230 | - footnote F2 | - | |
| ||||||
| John Pye - Officer | Open-market sale | Common Stock | 341 | $75.94 | $26K | |
| John Pye - Officer | Open-market sale | Common Stock | 3,659 | $75.98 | $278K | |
| Catherine Corrigan - Officer | Option exercise | Common Stock | 2,380 | $29.05 | $69K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 1,663 | $72.52 | $121K | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 2,380 | - footnote F2 | - | |
| ||||||
| Catherine Corrigan - Officer | Option exercise | Common Stock | 3,225 | $25.41 | $82K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 3,225 | $70.74 | $228K | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 3,225 | - footnote F2 | - | |
| ||||||
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 1,675 | $70.74 | $118K | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 3,225 | - footnote F3 | - | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 2,380 | - footnote F3 | - | |
| Catherine Corrigan - Officer | Option exercise | Common Stock | 3,225 | $25.41 | $82K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 3,225 | $70.21 | $226K | |
| Catherine Corrigan - Officer | Option exercise | Common Stock | 2,380 | $29.05 | $69K | |
| ||||||
| Catherine Corrigan - Officer | Option exercise | Common Stock | 3,226 | $25.41 | $82K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 3,226 | $66.84 | $216K | |
| Catherine Corrigan - Officer | Option exercise | Common Stock | 2,380 | $29.05 | $69K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 1,704 | $66.79 | $114K | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 3,226 | - footnote F3 | - | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 2,380 | - footnote F3 | - | |
| ||||||
| Catherine Corrigan - Officer | Option exercise | Common Stock | 2,380 | $29.05 | $69K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 1,679 | $70.18 | $118K | |
| Catherine Corrigan - Officer | Option exercise | Common Stock | 3,226 | $25.41 | $82K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 3,226 | $69.77 | $225K | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 3,226 | - | - | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 2,380 | - | - | |
| Catherine Corrigan - Officer | Option exercise | Common Stock | 3,226 | $25.41 | $82K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 3,226 | $70.93 | $229K | |
| Catherine Corrigan - Officer | Option exercise | Common Stock | 2,380 | $29.05 | $69K | |
| Catherine Corrigan - Officer | Open-market sale | Common Stock | 1,670 | $71.38 | $119K | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 3,226 | - | - | |
| Catherine Corrigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 2,380 | - | - | |
| Joseph Sala - Officer | Open-market sale | Common Stock | 1,595 | $70.64 | $113K | |
| Karen A. Richardson - Director | Option exercise | Common Stock | 1,525 | - | - | |
| Karen A. Richardson - Director | Option exercise | Restricted Stock Units | 1,525 | - | - | |
| Karen A. Richardson - Director | Grant or award | Restricted Stock Units | 2,009 | - | - | |
| Paul R. Johnston - Director | Option exercise | Common Stock | 1,525 | - | - | |
| Paul R. Johnston - Director | Option exercise | Restricted Stock Units | 1,525 | - | - | |
| Paul R. Johnston - Director | Grant or award | Restricted Stock Units | 2,009 | - | - | |
| Richard L. Schlenker Jr. - Officer | Gift | Common Stock | 10,000 | - | - | |
| Paul R. Johnston - Director | Option exercise | Common Stock | 1,300 | $37.45 | $49K | |
| Paul R. Johnston - Director | Open-market sale | Common Stock | 1,300 | $95.03 | $124K | |
| Paul R. Johnston - Director | Option exercise | Non-Qualified Stock Option (right to buy) | 1,300 | - | - | |
| Paul R. Johnston - Director | Option exercise | Common Stock | 7,000 | $37.45 | $262K | |
| Paul R. Johnston - Director | Open-market sale | Common Stock | 7,000 | $98.32 | $688K | |
| Paul R. Johnston - Director | Option exercise | Non-Qualified Stock Option (right to buy) | 7,000 | - | - | |
| Paul R. Johnston - Director | Gift | Common Stock | 21,336 | - | - | |
| Catherine Corrigan - Officer | Gift | Common Stock | 2,842 | - | - | |
| Paul R. Johnston - Director | Option exercise | Common Stock | 7,000 | $37.45 | $262K | |
| Paul R. Johnston - Director | Open-market sale | Common Stock | 7,000 | $103.65 | $726K | |
| Paul R. Johnston - Director | Option exercise | Non-Qualified Stock Option (right to buy) | 7,000 | - | - | |
| Paul R. Johnston - Director | Option exercise | Common Stock | 11,330 | $37.45 | $424K | |
| Paul R. Johnston - Director | Open-market sale | Common Stock | 11,330 | $104.60 | $1.19M | |
| Paul R. Johnston - Director | Option exercise | Common Stock | 2,670 | $37.45 | $100K | |
| Paul R. Johnston - Director | Open-market sale | Common Stock | 2,670 | $104.60 | $279K | |
| Paul R. Johnston - Director | Option exercise | Incentive Stock Option (right to buy) | 2,670 | - | - | |
| Paul R. Johnston - Director | Option exercise | Non-Qualified Stock Option (right to buy) | 11,330 | - | - | |
 Carol Lindstrom - Director | Open-market sale | Common Stock | 1,039 | $96.32 | $100K | |
Item 2.02, 7.01, 9.01
Item 5.07
Item 5.02, 9.01
Recent EXPO Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| CATHERINE CORRIGAN | Director, Officer | 1,707 | $115K | View on EDGAR | |
| - | - | - | - |
Stock trades in EXPO disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 Lisa C. McClainRepublican, MI-09 | Sale |
EXPO insider trading FAQ
What is the latest insider trade for EXPO?
EXPONENT INC (EXPO) had 4 insider filings in the last 90 days, with the most recent on 2026-09-22. The full record for EXPO runs to 58 Form 4 filings, the earliest from 2024-11-05. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying EXPO stock?
1 insider purchase of EXPO was filed in the last 90 days, totaling $13K.
How many insiders are selling EXPO stock?
2 insider sales of EXPO were filed in the last 90 days, totaling $222K.
Where can I see EXPO SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects EXPO Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Industrials companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Shukri Jeries Souri view on EDGAR
- - Catherine Corrigan view on EDGAR
- - Catherine Corrigan view on EDGAR
- - Catherine Corrigan view on EDGAR
- - Catherine Corrigan view on EDGAR
- - Catherine Corrigan view on EDGAR
- - Carol Lindstrom view on EDGAR
- - George H. Brown view on EDGAR
- - Karen A. Richardson view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Industrials
- Where EXPO's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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