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 6 of 13

121 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2016-05-26 GAMpB Sell (S) −14,600 -$450.1K EDGAR
2016-05-19 GAMpB Sell (S) −400 -$12.3K EDGAR
2016-05-18 GAMpB Sell (S) −400 -$12.3K EDGAR
2016-04-29 GAMpB Sell (S) −9,360 -$298.2K EDGAR
2016-04-27 GAMpB Sell (S) +8,840 $280.7K EDGAR
2016-04-26 GAMpB Sell (S) −400 -$12.7K EDGAR
2016-04-19 GAMpB Sell (S) −4,000 -$126.3K EDGAR
2015-09-03 GAMpB Buy (P) +11,200 $293.3K EDGAR
2015-08-26 GAMpB Buy (P) +16,481 $515.0K EDGAR
2015-08-24 GAMpB Buy (P) +4,218 $137.7K EDGAR
Showing 5160 of 121
Page 6 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.