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Stephen Socolof

CIK 1350862 · Chairman and Interim CEO · last filed 2022-06-23

Stephen Socolof is a Chairman and Interim CEO who has filed 16 SEC Form 4 insider transactions across 2 companies since 2016. The most recent filing, for EFOI, was dated Jun 23, 2022. Across all open-market trades the lifetime net is −$38.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $30.3M 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

$30.26M

Companies

2

Total Filings

16

Lifetime Open-Market Net

-$38.85M

Filer Profile

Reported Address
C/O EVERSPIN TECHNOLOGIES, INC.
1347 N. ALMA SCHOOL ROAD, SUITE 220
CHANDLER, AZ 85224
Related Filers
NV PARTNERS IV C L P — 1 joint filings, latest 2021-11-29
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
EFOI Chairman and Interim CEO 3,643 $2.89 $10.5K $9.8K 10 2022-06-23
MRAM Director 1,779,147 $17.00 $30.25M -$38.86M 6 2021-11-29

Recent Filings

16 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
2022-06-23 EFOI Exer (M) +5,000 $0 EDGAR
2022-02-15 EFOI Grant (A) — $0 EDGAR
2021-11-29 MRAM Sell (S) −3,065,850 -$35.02M EDGAR
2021-11-24 MRAM Sell (S) −510,975 -$5.84M EDGAR
2021-08-20 EFOI Buy (P) +3,500 $9.8K EDGAR
2021-05-27 EFOI Exer (M) +10,000 $0 EDGAR
2021-02-23 EFOI Grant (A) — $0 EDGAR
2020-09-17 EFOI Exer (M) +3,000 $0 EDGAR
2020-05-20 MRAM Grant (A) +20,131 $0 EDGAR
2020-03-20 EFOI Grant (A) — $0 EDGAR
Showing 1–10 of 16
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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.