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 3 of 13

121 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2020-02-05 GAMpB Sell (S) −40 -$1.1K EDGAR
2020-01-24 GAMpB Sell (S) −40 -$1.1K EDGAR
2019-10-15 GAMpB Sell (S) −400 -$10.7K EDGAR
2018-04-25 GAMpB Sell (S) −1,400 -$47.5K EDGAR
2018-04-23 GAMpB Sell (S) −1,011 -$34.2K EDGAR
2018-04-19 GAMpB Sell (S) −4,100 -$140.4K EDGAR
2017-12-21 GAMpB Buy (P) +1,300 $44.4K EDGAR
2017-12-18 GAMpB Buy (P) +5,800 $198.0K EDGAR
2017-12-14 GAMpB Buy (P) +1,800 $60.7K EDGAR
2017-12-14 GAMpB Buy (P) +400 $13.5K EDGAR
Showing 2130 of 121
Page 3 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.