Henry A Clark III

CIK 1474932 · View on SEC EDGAR ↗

Insider

First SEC filing: Oct. 21, 2009 · Latest: Oct. 21, 2009

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Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 99 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

99 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 5, 2019 SOMN P 2,000 $50.19 $100,380 2,000 Direct — Acquired -1.3% (price as of 2026-08-20)

Showing latest 100 of 112 transactions

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
April 1, 2025 SOMN Deferred Stock Units Holding [F1] Southern Company Common Stock (790) $0.00 — 790 Acquired
Jan. 2, 2025 SOMN Deferred Stock Units Holding [F1] Southern Company Common Stock (881) $0.00 — 881 Acquired
Oct. 1, 2024 SOMN Deferred Stock Units Holding [F1] Southern Company Common Stock (798) $0.00 — 798 Acquired
July 1, 2024 SOMN Deferred Stock Units Holding [F1] Southern Company Common Stock (942) $0.00 — 942 Acquired
April 1, 2024 SOMN Deferred Stock Units [F1] Southern Company Common Stock (1,020) $0.00 — 1,020 Acquired
Jan. 2, 2024 SOMN Deferred Stock Units [F1] Southern Company Common Stock (1,034) $0.00 — 1,034 Acquired
Oct. 2, 2023 SOMN Deferred Stock Units [F1] Southern Company Common Stock (1,043) $0.00 — 1,043 Acquired
July 3, 2023 SOMN Deferred Stock Units [F1] Southern Company Common Stock (961) $0.00 — 961 Acquired
April 3, 2023 SOMN Deferred Stock Units [F1] Southern Company Common Stock (970) $0.00 — 970 Acquired
Jan. 3, 2023 SOMN Deferred Stock Units [F1] Southern Company Common Stock (945) $0.00 — 945 Acquired
Oct. 3, 2022 SOMN Deferred Stock Units [F1] Southern Company Common Stock (993) $0.00 — 993 Acquired
July 1, 2022 SOMN Deferred Stock Units [F1] Southern Company Common Stock (923) $0.00 — 923 Acquired
April 1, 2022 SOMN Deferred Stock Units [F1] Southern Company Common Stock (911) $0.00 — 911 Acquired
Jan. 3, 2022 SOMN Deferred Stock Units [F1] Southern Company Common Stock (984) $0.00 — 984 Acquired
Oct. 1, 2021 SOMN Deferred Stock Units [F1] Southern Company Common Stock (1,093) $0.00 — 1,093 Acquired
July 1, 2021 SOMN Deferred Stock Units [F1] Southern Company Common Stock (1,098) $0.00 — 1,098 Acquired
April 1, 2021 SOMN Deferred Stock Units [F1] Southern Company Common Stock (1,083) $0.00 — 1,083 Acquired
Jan. 4, 2021 SOMN Deferred Stock Units Southern Company Common Stock (1,099) $0.00 — 1,099 Acquired
Oct. 1, 2020 SOMN Deferred Stock Units Southern Company Common Stock (1,236) $0.00 — 1,236 Acquired
July 1, 2020 SOMN Deferred Stock Units Southern Company Common Stock (1,277) $0.00 — 1,277 Acquired
April 1, 2020 SOMN Deferred Stock Units Southern Company Common Stock (1,346) $0.00 — 1,346 Acquired
Jan. 2, 2020 SOMN Deferred Stock Units Southern Company Common Stock (1,060) $0.00 — 1,060 Acquired
Oct. 1, 2019 SOMN Deferred Stock Units Southern Company Common Stock (1,010) $0.00 — 1,010 Acquired
July 1, 2019 SOMN Deferred Stock Units Southern Company Common Stock (1,140) $0.00 — 1,140 Acquired
April 1, 2019 SOMN Deferred Stock Units Southern Company Common Stock (1,216) $0.00 — 1,216 Acquired
Jan. 2, 2019 SOMN Deferred Stock Units Southern Company Common Stock (1,423) $0.00 — 1,423 Acquired
Oct. 1, 2018 SOMN Deferred Stock Units Southern Company Common Stock (811) $0.00 — 811 Acquired
Oct. 1, 2018 SOMN Deferred Stock Units Southern Company Common Stock (803) $0.00 — 803 Acquired
July 2, 2018 SOMN Deferred Stock Units Southern Company Common Stock (756) $0.00 — 756 Acquired
April 2, 2018 SOMN Deferred Stock Units Southern Company Common Stock (784) $0.00 — 784 Acquired
Jan. 2, 2018 SOMN Deferred Stock Units Southern Company Common Stock (728) $0.00 — 728 Acquired
Oct. 2, 2017 SOMN Deferred Stock Units Southern Company Common Stock (712) $0.00 — 712 Acquired
July 3, 2017 SOMN Deferred Stock Units Southern Company Common Stock (731) $0.00 — 731 Acquired
April 3, 2017 SOMN Deferred Stock Units Southern Company Common Stock (703) $0.00 — 703 Acquired
Jan. 3, 2017 SOMN Deferred Stock Units Southern Company Common Stock (712) $0.00 — 712 Acquired
Oct. 1, 2016 SOMN Deferred Stock Units Southern Company Common Stock (682) $0.00 — 682 Acquired
July 1, 2016 SOMN Deferred Stock Units Southern Company Common Stock (650) $0.00 — 650 Acquired
April 1, 2016 SOMN Deferred Stock Units Southern Company Common Stock (677) $0.00 — 677 Acquired
Jan. 1, 2016 SOMN Deferred Stock Units Southern Company Common Stock (748) $0.00 — 748 Acquired
Oct. 1, 2015 SOMN Deferred Stock Units Southern Company Common Stock (792) $0.00 — 792 Acquired
Sept. 1, 2015 SOMN Deferred Stock Units Southern Company Common Stock (269) $0.00 — 269 Acquired
Aug. 1, 2015 SOMN Deferred Stock Units Southern Company Common Stock (261) $0.00 — 261 Acquired
July 1, 2015 SOMN Deferred Stock Units Southern Company Common Stock (237) $0.00 — 237 Acquired
June 1, 2015 SOMN Deferred Stock Units Southern Company Common Stock (229) $0.00 — 229 Acquired
May 1, 2015 SOMN Deferred Stock Units Southern Company Common Stock (223) $0.00 — 223 Acquired
April 1, 2015 SOMN Deferred Stock Units Southern Company Common Stock (226) $0.00 — 226 Acquired
March 1, 2015 SOMN Deferred Stock Units Southern Company Common Stock (221) $0.00 — 221 Acquired
Feb. 1, 2015 SOMN Deferred Stock Units Southern Company Common Stock (198) $0.00 — 198 Acquired
Jan. 2, 2015 SOMN Deferred Stock Units Southern Company Common Stock (204) $0.00 — 204 Acquired
Dec. 1, 2014 SOMN Deferred Stock Units Southern Company Common Stock (210) $0.00 — 210 Acquired
Nov. 1, 2014 SOMN Deferred Stock Units Southern Company Common Stock (216) $0.00 — 216 Acquired
Oct. 1, 2014 SOMN Deferred Stock Units Southern Company Common Stock (226) $0.00 — 226 Acquired
Sept. 2, 2014 SOMN Deferred Stock Units Southern Company Common Stock (228) $0.00 — 228 Acquired
Aug. 1, 2014 SOMN Deferred Stock Units Southern Company Common Stock (229) $0.00 — 229 Acquired
July 1, 2014 SOMN Deferred Stock Units Southern Company Common Stock (221) $0.00 — 221 Acquired
June 2, 2014 SOMN Deferred Stock Units Southern Company Common Stock (229) $0.00 — 229 Acquired
May 1, 2014 SOMN Deferred Stock Units Southern Company Common Stock (222) $0.00 — 222 Acquired
April 1, 2014 SOMN Deferred Stock Units Southern Company Common Stock (230) $0.00 — 230 Acquired
March 4, 2014 SOMN Deferred Stock Units Southern Company Common Stock (237) $0.00 — 237 Acquired
Feb. 3, 2014 SOMN Deferred Stock Units Southern Company Common Stock (243) $0.00 — 243 Acquired
Jan. 2, 2014 SOMN Deferred Stock Units Southern Company Common Stock (244) $0.00 — 244 Acquired
Dec. 2, 2013 SOMN Deferred Stock Units Southern Company Common Stock (217) $0.00 — 217 Acquired
Nov. 1, 2013 SOMN Deferred Stock Units Southern Company Common Stock (213) $0.00 — 213 Acquired
Oct. 1, 2013 SOMN Deferred Stock Units Southern Company Common Stock (212) $0.00 — 212 Acquired
Sept. 3, 2013 SOMN Deferred Stock Units Southern Company Common Stock (213) $0.00 — 213 Acquired
Aug. 1, 2013 SOMN Deferred Stock Units Southern Company Common Stock (198) $0.00 — 198 Acquired
July 1, 2013 SOMN Deferred Stock Units Southern Company Common Stock (198) $0.00 — 198 Acquired
June 3, 2013 SOMN Deferred Stock Units Southern Company Common Stock (198) $0.00 — 198 Acquired
May 1, 2013 SOMN Deferred Stock Units Southern Company Common Stock (182) $0.00 — 182 Acquired
April 1, 2013 SOMN Deferred Stock Units Southern Company Common Stock (188) $0.00 — 188 Acquired
March 1, 2013 SOMN Deferred Stock Units Southern Company Common Stock (195) $0.00 — 195 Acquired
Feb. 2, 2013 SOMN Deferred Stock Units Southern Company Common Stock (198) $0.00 — 198 Acquired
Jan. 2, 2013 SOMN Deferred Stock Units Southern Company Common Stock (202) $0.00 — 202 Acquired
Dec. 3, 2012 SOMN Deferred Stock Units Southern Company Common Stock (203) $0.00 — 203 Acquired
Nov. 1, 2012 SOMN Deferred Stock Units Southern Company Common Stock (189) $0.00 — 189 Acquired
Oct. 1, 2012 SOMN Deferred Stock Units Southern Company Common Stock (190) $0.00 — 190 Acquired
Sept. 4, 2012 SOMN Deferred Stock Units Southern Company Common Stock (193) $0.00 — 193 Acquired
Aug. 1, 2012 SOMN Deferred Stock Units Southern Company Common Stock (181) $0.00 — 181 Acquired
July 2, 2012 SOMN Deferred Stock Units Southern Company Common Stock (188) $0.00 — 188 Acquired
June 1, 2012 SOMN Deferred Stock Units Southern Company Common Stock (190) $0.00 — 190 Acquired
May 1, 2012 SOMN Deferred Stock Units Southern Company Common Stock (190) $0.00 — 190 Acquired
April 2, 2012 SOMN Deferred Stock Units Southern Company Common Stock (195) $0.00 — 195 Acquired
March 1, 2012 SOMN Deferred Stock Units Southern Company Common Stock (197) $0.00 — 197 Acquired
Feb. 1, 2012 SOMN Deferred Stock Units Southern Company Common Stock (193) $0.00 — 193 Acquired
Jan. 3, 2012 SOMN Deferred Stock Units Southern Company Common Stock (191) $0.00 — 191 Acquired
Dec. 1, 2011 SOMN Deferred Stock Units Southern Company Common Stock (198) $0.00 — 198 Acquired
Nov. 1, 2011 SOMN Deferred Stock Units Southern Company Common Stock (204) $0.00 — 204 Acquired
Oct. 3, 2011 SOMN Deferred Stock Units Southern Company Common Stock (207) $0.00 — 207 Acquired
Sept. 1, 2011 SOMN Deferred Stock Units Southern Company Common Stock (213) $0.00 — 213 Acquired
Aug. 1, 2011 SOMN Deferred Stock Units Southern Company Common Stock (221) $0.00 — 221 Acquired
July 1, 2011 SOMN Deferred Stock Units Southern Company Common Stock (216) $0.00 — 216 Acquired
June 1, 2011 SOMN Deferred Stock Units Southern Company Common Stock (220) $0.00 — 220 Acquired
May 2, 2011 SOMN Deferred Stock Units Southern Company Common Stock (224) $0.00 — 224 Acquired
April 1, 2011 SOMN Deferred Stock Units Southern Company Common Stock (229) $0.00 — 229 Acquired
March 1, 2011 SOMN Deferred Stock Units Southern Company Common Stock (231) $0.00 — 231 Acquired
Feb. 1, 2011 SOMN Deferred Stock Units Southern Company Common Stock (232) $0.00 — 232 Acquired
Jan. 3, 2011 SOMN Deferred Stock Units Southern Company Common Stock (228) $0.00 — 228 Acquired
Dec. 1, 2010 SOMN Deferred Stock Units Southern Company Common Stock (196) $0.00 — 196 Acquired
Nov. 1, 2010 SOMN Deferred Stock Units Southern Company Common Stock (199) $0.00 — 199 Acquired
Oct. 1, 2010 SOMN Deferred Stock Units Southern Company Common Stock (201) $0.00 — 201 Acquired

Showing latest 100 of 111 transactions

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
Oct. 21, 2009 SOMN Southern Company Common Stock 0 Direct