MATTHEW MORRIS PARTRIDGE
CIK 1663789 · Chief Executive Officer · last filed 2026-04-03
"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
$5.87M
Companies
4
Total Filings
28
Lifetime Open-Market Net
$196.3K
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 |
|---|---|---|---|---|---|---|---|
| SEG | Chief Executive Officer | 115,615 | $26.23 | $3.03M | $0 | 9 | 2026-04-03 |
| CTO | SR. VP, CFO & TREASURER | 123,802 | $21.97 | $2.72M | $171.3K | 14 | 2024-02-16 |
| PINE | SR. VP, CFO & TREASURER | 1,658 | $20.18 | $33.5K | $25.0K | 1 | 2020-12-15 |
| ADC | CFO, Executive VP, Secretary | 1,082 | $77.80 | $84.2K | $0 | 4 | 2017-08-08 |
Recent Filings · Page 3 of 3
28 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 |
|---|---|---|---|---|---|
| 2021-02-11 | CTO | Grant (A) | +4,101 | $0 | EDGAR |
| 2020-12-15 | CTO | Buy (P) | +1,200 | $50.1K | EDGAR |
| 2020-12-15 | PINE | Buy (P) | +1,658 | $25.0K | EDGAR |
| 2020-10-05 | CTO | Grant (A) | +4,000 | $0 | EDGAR |
| 2017-08-08 | ADC | Disp (D) | −10,149 | $0 | EDGAR |
| 2017-02-27 | ADC | Grant (A) | +4,114 | $0 | EDGAR |
| 2017-01-17 | ADC | Tax (F) | −777 | -$35.6K | EDGAR |
| 2016-01-14 | ADC | Grant (A) | −7,544 | -$250.0K | EDGAR |
Showing 21–28 of 28
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Page 3 of 3
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.