Insider · CIK 0001751051
Thomas A South
Files at NTRS (NORTHERN TRUST CORP). First filing Nov 8, 2024, latest Aug 25, 2026.
In brief
Thomas A South files SEC Form 4 as officer at NTRS (NORTHERN TRUST CORP). Since Nov 8, 2024, Thomas A South has reported 0 open-market buys worth $0 and 3 open-market sells worth $1.6M, the latest filed on Aug 25, 2026.
A track record needs three past buys with six months of prices behind them; Thomas A South has 0, so none is measured yet.
The newest scored trade: sold $333k of NTRS on Aug 24, 2026, filed Aug 25, 2026, scored 30 (weak). In the last 12 months: 0 buys worth $0 and 2 sells worth $1.0M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
NTRS: NORTHERN TRUST CORP
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 30Weak | NTRSsell NORTHERN TRUST CORP | $333k 1,800 shares | -2% | +55% from low-3% from high | |
| 36Weak | NTRSsell NORTHERN TRUST CORP | $695k 5,000 shares | -7% | +69% from low0% from high | |
| 48Moderate | NORTHERN TRUST CORP | $529k 5,000 shares | -9% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 19, 2026 | NTRS Northern Trust Corporation | 1,800 0.00% of outstanding | $334k | Aug 20, 2026 | none |
| Dec 10, 2025 | NTRS Northern Trust Corporation | 5,000 0.00% of outstanding | $688k | Dec 11, 2025 | none |
| Feb 19, 2025 | NTRS Northern Trust Corporation | 3,804 0.00% of outstanding | $455k | Feb 19, 2025 | none |
| Nov 7, 2024 | NTRS Northern Trust Corporation | 5,000 0.00% of outstanding | $533k | Nov 7, 2024 | none |
Transactions
Every row this insider has filed, 21 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 24, 2026 | NTRS NORTHERN TRUST CORP | SOpen-market sale Common Stock | -1,800 | $184.90 | $333k | 92,917 | Aug 25, 2026 |
| May 22, 2026 | NTRS NORTHERN TRUST CORP | GGift Common Stock | -320 | $0.00 | $0 | 94,717 | May 26, 2026 |
| May 4, 2026 | NTRS NORTHERN TRUST CORP | GGift Common Stock | -1,300 | $0.00 | $0 | 95,037 | May 4, 2026 |
| Mar 1, 2026 | NTRS NORTHERN TRUST CORP | FTax withholding Common Stock | -2,544 | $143.15 | $364k | 96,337 | Mar 4, 2026 |
| Feb 17, 2026 | NTRS NORTHERN TRUST CORP | AGrant or award Common Stock | +19,892 | $0.00 | $0 | 107,487 | Feb 19, 2026 |
| Feb 17, 2026 | NTRS NORTHERN TRUST CORP | FTax withholding Common Stock | -8,606 | $147.24 | $1.3M | 98,881 | Feb 19, 2026 |
| Feb 5, 2026 | NTRS NORTHERN TRUST CORP | AGrant or award Common Stock | +16,850 | $0.00 | $0 | 88,658 | Feb 9, 2026 |
| Feb 5, 2026 | NTRS NORTHERN TRUST CORP | FTax withholding Common Stock | -1,063 | $148.88 | $158k | 87,595 | Feb 9, 2026 |
| Dec 11, 2025 | NTRS NORTHERN TRUST CORP | SOpen-market sale Common Stock | -5,000 | $139.03 | $695k | 71,888 | Dec 15, 2025 |
| Dec 11, 2025 | NTRS NORTHERN TRUST CORP | GGift Common Stock | -80 | $0.00 | $0 | 71,808 | Dec 15, 2025 |
| Dec 3, 2025 | NTRS NORTHERN TRUST CORP | FTax withholding Common Stock | -1,048 | $131.32 | $138k | 76,888 | Dec 5, 2025 |
| Sep 9, 2025 | NTRS NORTHERN TRUST CORP | GGift Common Stock | -155 | $0.00 | $0 | 77,936 | Sep 9, 2025 |
| May 22, 2025 | NTRS NORTHERN TRUST CORP | GGift Common Stock | -500 | $0.00 | $0 | 78,091 | May 23, 2025 |
| Dec 3, 2024 | NTRS NORTHERN TRUST CORP | FTax withholding Common Stock | -851 | $110.31 | $94k | 48,905 | Dec 5, 2024 |
| Nov 7, 2024 | NTRS NORTHERN TRUST CORP | SOpen-market sale Common Stock | -5,000 | $105.80 | $529k | 49,756 | Nov 8, 2024 |
| Oct 28, 2024 | NTRS NORTHERN TRUST CORP | GGift Common Stock | -500 | $0.00 | $0 | 54,756 | Oct 29, 2024 |
| Apr 23, 2024 | NTRS NORTHERN TRUST CORP | GGift Common Stock | -600 | $0.00 | $0 | 55,256 | Apr 25, 2024 |
| Mar 1, 2024 | NTRS NORTHERN TRUST CORP | FTax withholding Common Stock | -3,169 | $81.90 | $260k | 55,856 | Mar 5, 2024 |
| Feb 21, 2024 | NTRS NORTHERN TRUST CORP | AGrant or award Common Stock | +9,047 | $0.00 | $0 | 59,025 | Feb 23, 2024 |
| Feb 20, 2024 | NTRS NORTHERN TRUST CORP | AGrant or award Common Stock | +16,067 | $0.00 | $0 | 56,879 | Feb 22, 2024 |
| Feb 20, 2024 | NTRS NORTHERN TRUST CORP | FTax withholding Common Stock | -6,901 | $79.51 | $549k | 49,978 | Feb 22, 2024 |
Questions about Thomas A South
Answered from the filings on this page, as of the latest one.
Is Thomas A South buying or selling?
In the last 12 months Thomas A South reported 0 open-market buys worth $0 and 2 open-market sells worth $1.0M on SEC Form 4; the latest was sold $333k of NTRS on Aug 24, 2026. Grants, option exercises and tax withholding are not counted.
How did Thomas A South's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Thomas A South has 0.
Where does Thomas A South file Form 4?
Thomas A South has filed Form 4 at NTRS (NORTHERN TRUST CORP) as Executive Vice President. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.