Steven R Mitchell

CIK 1610279 · last filed 2026-05-21

"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

$262.41M

Companies

3

Total Filings

45

Lifetime Open-Market Net

-$3.35M

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
ALKT Director 2,619,104 $15.19 $39.78M $0 27 2026-05-21
ASPN Director 156,898 $5.92 $928.8K $357.5K 14 2026-05-14
STEP Director 4,994,330 $44.39 $221.70M -$3.71M 4 2026-02-25

Recent Filings · Page 2 of 5

45 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2025-01-07 ALKT Grant (A) +219 $0 EDGAR
2024-10-08 ALKT Grant (A) +272 $0 EDGAR
2024-07-09 ALKT Grant (A) +311 $0 EDGAR
2024-06-12 STEP Sell (S) −35,000 -$1.53M EDGAR
2024-06-12 STEP Sell (S) −27,500 -$1.22M EDGAR
2024-05-31 ASPN Grant (A) +1,898 $0 EDGAR
2024-05-17 ALKT Grant (A) +6,853 $0 EDGAR
2024-04-08 ALKT Grant (A) +354 $0 EDGAR
2024-01-09 ALKT Grant (A) +367 $0 EDGAR
2023-10-06 ALKT Grant (A) +485 $0 EDGAR
Showing 1120 of 45
Page 2 of 5
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.