MAYO A III SHATTUCK
CIK 1087426 · Chairman · last filed 2026-07-01
"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
$221.40M
Companies
7
Total Filings
154
Lifetime Open-Market Net
-$134.84M
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 |
|---|---|---|---|---|---|---|---|
| GAP | Director | 200,118 | $20.25 | $4.05M | $0 | 1 | 2026-07-01 |
| HUT | Director | 109,408 | $90.77 | $9.93M | $0 | 6 | 2026-06-15 |
| COF | Director | 67,911 | $222.44 | $15.11M | -$5.26M | 26 | 2026-05-12 |
| GAP INC (GPS) Delisted | Director | 179,339 | $24.55 | $4.40M | -$82.3K | 35 | 2025-07-02 |
| EXC | Director | 270,016 | $45.22 | $12.21M | -$102.00M | 55 | 2022-04-04 |
| ALRM | Director | 67,317 | $55.46 | $3.73M | -$945.9K | 13 | 2020-09-30 |
| CEG | Chairman, Pres. & CEO | 632,881 | $278.68 | $176.37M | -$26.55M | 17 | 2012-02-28 |
Recent Filings · Page 10 of 16
154 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 |
|---|---|---|---|---|---|
| 2014-12-18 | GAP INC (GPS) Delisted | Exer (M) | +7,500 | $157.8K | EDGAR |
| 2014-10-01 | EXC | Grant (A) | +757 | $25.0K | EDGAR |
| 2014-07-01 | EXC | Grant (A) | +673 | $25.0K | EDGAR |
| 2014-07-01 | GAP INC (GPS) Delisted | Mixed | +7,243 | $0 | EDGAR |
| 2014-03-13 | GAP INC (GPS) Delisted | Mixed | +1,750 | $923 | EDGAR |
| 2014-01-29 | EXC | Mixed | — | $0 | EDGAR |
| 2014-01-02 | EXC | Grant (A) | +887 | $25.0K | EDGAR |
| 2013-10-01 | EXC | Grant (A) | +814 | $25.0K | EDGAR |
| 2013-09-03 | EXC | Mixed | — | $0 | EDGAR |
| 2013-08-05 | COF | Mixed | — | -$105.4K | EDGAR |
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.