Thomas A South

CIK 1751051 · Executive Vice President · last filed 2026-05-26

"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

$1.84M

Companies

2

Total Filings

37

Lifetime Open-Market Net

-$2.10M

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
NTRSO Executive Vice President 99,001 $18.56 $1.84M -$2.00M 34 2026-05-26
NORTHERN TRUST CORP (NTRSP) Delisted Executive Vice President 18,289 -$98.5K 3 2019-09-16

Recent Filings · Page 3 of 4

37 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2023-02-23 NTRSO Mixed +15,430 -$271.6K EDGAR
2022-03-03 NTRSO Tax (F) −2,199 -$240.0K EDGAR
2022-02-25 NTRSO Grant (A) +7,546 $0 EDGAR
2022-01-20 NTRSO Mixed +2,919 -$168.8K EDGAR
2021-12-10 NTRSO Sell (S) −2,000 -$236.4K EDGAR
2021-08-02 NTRSO Gift (G) −444 $0 EDGAR
2021-04-28 NTRSO Sell (S) −1,000 -$109.7K EDGAR
2021-03-03 NTRSO Tax (F) −1,261 -$124.1K EDGAR
2021-02-24 NTRSO Tax (F) −579 -$56.1K EDGAR
2021-02-19 NTRSO Grant (A) +6,554 $0 EDGAR
Showing 2130 of 37
Page 3 of 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.