Skip to content
sellModerate cluster of 6

Darin G Billerbeck sold $1.1M of MRAM

director at EVERSPIN TECHNOLOGIES INC. 30,000 shares at an average of $37.16, traded May 11, 2026, filed May 13, 2026.

Warning score
45
Value
$1.1M
30,000 shares
Holdings after
124,073
-19% from before
From 52-week low
+622%
low $5.52, close $39.86
From 52-week high
0%
high $39.86, as of May 11, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $1.1M at market
    +25
  • Share of holdings sold
    Sold 19% of holdings
    +5
  • Cluster
    6 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -41.1%, 3m -58.9%, 6m -.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

MRAMOct 9, 2026 · close 16.45
Since filing May 13, 2026: -60.3%SPY +5.4% · excess -65.7%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001628280-26-034647, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 11, 2026MOption exercise
Common Stock
+30,000$8.52$256k154,073May 13, 2026
May 11, 2026SOpen-market sale
Common Stock
-30,000$37.16$1.1M124,073May 13, 2026
May 11, 2026MOption exercise
Nonqualified Stock Option (Right to Buy)derivative
-30,000$0.00$00May 13, 2026

Related signals

Other insiders at EVERSPIN TECHNOLOGIES INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
55Moderate
MRAMsell 3
EVERSPIN TECHNOLOGIES INC
Sanjeev Aggarwal
President and CEO
$373k
19,572 shares
-2%
44Moderate
MRAMsell 3
EVERSPIN TECHNOLOGIES INC
William Earl Cooper
Chief Financial Officer
$59k
3,115 shares
-2%
41Moderate
MRAMsell 3
EVERSPIN TECHNOLOGIES INC
Sean Michael Dougherty
Vice President, Sales
$147k
7,691 shares
-7%
45Moderate
MRAMsell 2
EVERSPIN TECHNOLOGIES INC
Sanjeev Aggarwal
President and CEO
$180k
20,398 shares
-2%
61Notable
MRAMsell 3
EVERSPIN TECHNOLOGIES INC
Sanjeev Aggarwal
President and CEO
$713k
36,289 shares
-4%
30Weak
MRAMsell 2
EVERSPIN TECHNOLOGIES INC
William Earl Cooper
Chief Financial Officer
$14k
1,627 shares
-1%
43Moderate
MRAMsell 3
EVERSPIN TECHNOLOGIES INC
William Earl Cooper
Chief Financial Officer
$36k
1,821 shares
-1%
30Weak
MRAMsell 3
EVERSPIN TECHNOLOGIES INC
Sean Michael Dougherty
Vice President, Sales
$8,292
422 shares
-0%
61Notable
MRAMsell 3
EVERSPIN TECHNOLOGIES INC
Sanjeev Aggarwal
President and CEO
$690k
30,885 shares
-4%
43Moderate
MRAMsell 3
EVERSPIN TECHNOLOGIES INC
William Earl Cooper
Chief Financial Officer
$35k
1,549 shares
-1%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.