Mark A. Crosswhite
CIK 1426400 · Chairman, President & CEO, APC · last filed 2026-07-17
"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
$3.99M
Companies
5
Total Filings
51
Lifetime Open-Market Net
-$34.65M
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 |
|---|---|---|---|---|---|---|---|
| RF | Director | 6,344 | $31.27 | $198.4K | $0 | 21 | 2026-07-17 |
| SOUTHERN CO (SOLN) Delisted | Chairman, President & CEO, APC | 210,256 | $56.16 | $11.81M | $0 | 9 | 2022-02-15 |
| SOJC | President & CEO, APC | 125,827 | $20.21 | $2.54M | -$14.55M | 5 | 2019-06-11 |
| SOUTHERN CO (SOJA) Delisted | President & CEO, APC | 183,723 | — | — | -$11.98M | 3 | 2016-08-01 |
| SO | President & CEO, APC | 12,925 | $96.78 | $1.25M | -$8.11M | 13 | 2015-02-19 |
Recent Filings · Page 5 of 6
51 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 |
|---|---|---|---|---|---|
| 2014-02-11 | SO | — | — | $0 | EDGAR |
| 2014-01-14 | SO | Mixed | +1,633 | $67.4K | EDGAR |
| 2013-11-05 | SO | Mixed | +7,427 | $305.9K | EDGAR |
| 2013-09-11 | SO | Mixed | −3,809 | -$538.8K | EDGAR |
| 2013-03-05 | SO | Mixed | — | -$368.6K | EDGAR |
| 2013-02-13 | SO | Grant (A) | — | $0 | EDGAR |
| 2013-01-15 | SO | Mixed | +3,809 | $164.0K | EDGAR |
| 2012-04-26 | SO | Mixed | — | -$227.5K | EDGAR |
| 2012-02-15 | SO | Grant (A) | — | $0 | EDGAR |
| 2011-05-23 | SO | Mixed | — | -$122.2K | 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.