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buyNotable cluster of 8

Gregg Winiarski bought $977k of MSTR

director at Strategy Inc. 10,000 shares at an average of $97.65, traded Aug 8, 2025, filed Aug 12, 2025.

Conviction score
67
Value
$977k
10,000 shares
Holdings after
10,000
change unknown
From 52-week low
+206%
low $129.28, close $395.13
From 52-week high
-17%
high $473.83, as of Aug 8, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $977k at market
    +25
  • Relative to holdings
    First purchase: no shares before this trade
    +8
  • Price context
    17% below the 52-week high
    +4
  • Cluster
    8 insiders buying within 14 days
    +15
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

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.

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.

MSTROct 9, 2026 · close 154.34
Since filing Aug 12, 2025: -60.9%SPY +22.8% · excess -83.7%

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 0000950170-25-107378, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 8, 2025POpen-market purchase
Series A Perpetual Stretch Preferred Stock
+10,000$97.65$977k10,000Aug 12, 2025

Related signals

Other insiders at Strategy Inc and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
9Weak
MSTRsell
Strategy Inc
Jarrod M Patten
director
$81k
475 shares
-2%
13Weak
MSTRsell
Strategy Inc
Jarrod M Patten
director
$238k
1,425 shares
-5%
35Weak
MSTRsell
Strategy Inc
Thomas C. Chow
EVP & General Counsel
$15k
106 shares
-100%
53Moderate
MSTRbuy
Strategy Inc
Jane A Dietze
director
$105k
1,100 shares
+73%
28Weak
MSTRsell 210b5-1
Strategy Inc
Wei-Ming Shao
EVP & General Counsel
$1.0M
5,200 shares
-15%
0Weak
MSTRsell 210b5-1
Strategy Inc
Jeanine Montgomery
VP & CAO
$8,968
43 shares
-0%
28Weak
MSTRsell 210b5-1
Strategy Inc
Wei-Ming Shao
EVP & General Counsel
$1.0M
5,200 shares
-15%
28Weak
MSTRsell 210b5-1
Strategy Inc
Wei-Ming Shao
EVP & General Counsel
$1.8M
7,934 shares
-21%
43Moderate
MSTRsell 210b5-1
Strategy Inc
Wei-Ming Shao
EVP & General Counsel
$2.6M
10,668 shares
-59%
63Notable
MSTRbuy
Strategy Inc
Jarrod M Patten
director
$2.3M
23,780 shares
+428%

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.

Gregg Winiarski bought $977k of MSTR | InsiderTell