MARK W SHEAHAN

CIK 1190815 · President and CEO · last filed 2026-05-11

"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

$9.37M

Companies

2

Total Filings

43

Lifetime Open-Market Net

-$25.51M

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
TNC Director 4,348 $86.88 $377.8K $0 3 2026-05-11
GGG President and CEO 120,483 $74.60 $8.99M -$25.51M 40 2026-02-17

Recent Filings · Page 3 of 5

43 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2018-02-16 GGG Grant (A) $0 EDGAR
2017-10-31 GGG Mixed -$3.12M EDGAR
2017-02-21 GGG Grant (A) $0 EDGAR
2016-11-10 GGG Mixed -$2.74M EDGAR
2016-02-16 GGG Grant (A) $0 EDGAR
2016-02-02 GGG Buy (P) +592 $41.2K EDGAR
2015-02-17 GGG Grant (A) $0 EDGAR
2014-02-18 GGG Grant (A) $0 EDGAR
2013-08-02 GGG Mixed -$1.85M EDGAR
2013-05-08 GGG Mixed -$823.5K EDGAR
Showing 2130 of 43
Page 3 of 5
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.