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Karen L. Alvingham

CIK 1726148 · last filed 2026-03-09

Karen L. Alvingham is a corporate insider who has filed 33 SEC Form 4 insider transactions across 4 companies since 2018. The most recent filing, for MGRE, was dated Mar 9, 2026. Current disclosed insider exposure totals $382.9K across reported positions.

"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

$382.9K

Companies

4

Total Filings

33

Lifetime Open-Market Net

$0

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
MGRE Director 13,043 $22.78 $297.1K $0 8 2026-03-09
MGRD Director 4,262 $15.07 $64.2K $0 15 2024-03-07
MGRB Director 807 $16.79 $13.5K $0 2 2021-02-09
MGR Director 398 $20.15 $8.0K $0 8 2020-07-30

Recent Filings

33 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
2026-03-09 MGRE Mixed +800 -$20.0K EDGAR
2025-11-12 MGRE Mixed +378 -$8.2K EDGAR
2025-08-18 MGRE Mixed +1,008 -$18.4K EDGAR
2025-08-04 MGRE Grant (A) — $0 EDGAR
2025-03-07 MGRE Mixed +1,088 -$14.9K EDGAR
2025-02-10 MGRE Grant (A) — $0 EDGAR
2024-08-16 MGRE Mixed +856 -$12.4K EDGAR
2024-07-31 MGRE Mixed +4,651 -$70.5K EDGAR
2024-03-07 MGRD Mixed +496 -$6.5K EDGAR
2024-02-07 MGRD Grant (A) — $0 EDGAR
Showing 1–10 of 33
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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.