Michael O'Grady

CIK 1527742 · Chairman and CEO · last filed 2026-04-28

"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

$11.10M

Companies

5

Total Filings

61

Lifetime Open-Market Net

-$15.81M

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
ABT Director 7,603 $105.68 $803.5K $0 4 2026-04-28
NTRSO Chairman and CEO 63,856 $18.45 $1.18M -$15.81M 37 2026-03-04
NORTHERN TRUST CORP (NTRSP) Delisted President and CEO 143,995 $0 9 2019-03-05
NORTHERN TRUST CORP (NTRS.P) Delisted President / C&IS 73,474 $0 7 2016-02-18
NTRS Executive Vice President /CFO 49,941 $182.60 $9.12M $0 4 2014-02-12

Recent Filings · Page 3 of 7

61 filings
Insider 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
2023-10-25 NTRSO Buy (P) +20,000 $1.30M EDGAR
2023-05-02 ABT Grant (A) +1,816 $0 EDGAR
2023-03-03 NTRSO Tax (F) −9,845 -$930.3K EDGAR
2023-02-23 NTRSO Mixed +53,446 -$1.64M EDGAR
2023-02-09 NTRSO Exer (M) +28,469 $1.50M EDGAR
2022-12-07 NTRSO Tax (F) −1,060 -$95.6K EDGAR
2022-05-20 NTRSO Gift (G) $0 EDGAR
2022-03-03 NTRSO Tax (F) −8,841 -$964.9K EDGAR
2022-02-25 NTRSO Grant (A) +26,180 $0 EDGAR
2022-01-20 NTRSO Mixed +17,260 -$1.55M EDGAR
Showing 2130 of 61
Page 3 of 7
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.