Katherine R Davisson

CIK 1858470 · last filed 2025-07-31

Katherine R Davisson is a corporate insider who has filed 6 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing, for SEM, was dated Jul 31, 2025. Current disclosed insider exposure totals $1.0M 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

$1.00M

Companies

1

Total Filings

6

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
SEM Director 60,035 $16.66 $1.00M $0 6 2025-07-31

Recent Filings

6 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2025-07-31 SEM Grant (A) +14,035 $0 EDGAR
2024-05-01 SEM Grant (A) +10,000 $0 EDGAR
2023-08-02 SEM Grant (A) +10,000 $0 EDGAR
2022-08-03 SEM Grant (A) +10,000 $0 EDGAR
2021-08-05 SEM Grant (A) +6,000 $0 EDGAR
2021-05-05 SEM Grant (A) +10,000 $0 EDGAR
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.