SPENCER DAVIDSON

CIK 1215920 · President & CEO · last filed 2026-01-05

"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

$5.33M

Companies

2

Total Filings

121

Lifetime Open-Market Net

-$12.82M

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
GAMpB 190,874 $24.77 $4.73M -$12.12M 112 2026-01-05
MRX Director 9,722 $61.96 $602.4K -$698.7K 8 2012-05-17

Recent Filings · Page 11 of 13

121 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2013-09-12 GAMpB Sell (S) −15,000 -$508.1K EDGAR
2013-09-05 GAMpB Buy (P) +50,074 $1.27M EDGAR
2013-03-06 GAMpB Buy (P) +4,600 $117.9K EDGAR
2013-03-06 GAMpB Buy (P) +9,589 $245.1K EDGAR
2012-12-13 Disp (D) −9,722 -$427.8K
2012-05-17 MRX Grant (A) +2,311 $0 EDGAR
2011-11-01 GAMpB Sell (S) −5,000 -$126.8K EDGAR
2011-05-19 MRX Grant (A) +2,411 $0 EDGAR
2011-05-17 MRX Mixed -$251.4K EDGAR
2010-12-22 GAMpB Buy (P) +200 $5.0K EDGAR
Showing 101110 of 121
Page 11 of 13
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.