Stephen E. Macadam
CIK 1432316 · President and CEO · last filed 2026-06-15
"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.
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Disclosed Exposure
$90.03M
Companies
9
Total Filings
128
Lifetime Open-Market Net
-$5.63M
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 |
|---|---|---|---|---|---|---|---|
| Sleep Number Corp (SNBR) Delisted | Director | 30,437 | $0.12 | $3.8K | $1.02M | 10 | 2026-06-15 |
| ATMU | Director | 38,588 | $50.76 | $1.96M | $461.8K | 8 | 2026-05-13 |
| NBN | Director | 43,080 | $133.60 | $5.76M | $249.8K | 7 | 2026-05-11 |
| Veritiv Corp (VRTV) Delisted | Director | 0 | $169.99 | $0 | $589.9K | 12 | 2023-11-30 |
| VVV | Director | 14,802 | $34.16 | $505.6K | $110.0K | 21 | 2023-01-26 |
| LPX | Director | 32,131 | $75.13 | $2.41M | $508.2K | 13 | 2022-05-06 |
| NPO | President and CEO | 240,641 | $329.95 | $79.40M | -$8.61M | 50 | 2020-02-18 |
| AXIALL CORP/DE/ (AXLL) Delisted | Director | 15,795 | — | — | $47.5K | 2 | 2013-05-22 |
| AXIALL CORP/DE/ (GGC) Delisted | Director | 12,742 | — | — | $0 | 4 | 2012-05-22 |
Recent Filings · Page 13 of 13
128 filingsInsider 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 |
|---|---|---|---|---|---|
| 2011-02-14 | NPO | Grant (A) | +14,000 | $592.2K | EDGAR |
| 2010-06-10 | NPO | Buy (P) | +4,063 | $119.9K | EDGAR |
| 2010-05-20 | AXIALL CORP/DE/ (GGC) Delisted | Grant (A) | +4,038 | $70.0K | EDGAR |
| 2010-02-11 | NPO | Grant (A) | — | $0 | EDGAR |
| 2010-01-14 | AXIALL CORP/DE/ (GGC) Delisted | Grant (A) | +3,975 | $70.0K | EDGAR |
| 2009-04-30 | NPO | Grant (A) | — | $0 | EDGAR |
| 2008-11-18 | NPO | Buy (P) | +5,793 | $99.6K | EDGAR |
| 2008-11-05 | NPO | Buy (P) | +4,609 | $100.0K | EDGAR |
Showing 121–128 of 128
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Page 13 of 13
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.
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.