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Gregg R. Honigblum bought $35k of SINT

Chief Investment Officer at Sintx Technologies, Inc.. 8,200 shares at an average of $4.26, traded Dec 8, 2025, filed Dec 9, 2025.

Conviction score
30
Value
$35k
8,200 shares
Holdings after
201,067
+4% from before
From 52-week low
+143%
low $1.73, close $4.21
From 52-week high
-24%
high $5.53, as of Dec 8, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $35k at market
    +6
  • Relative to holdings
    Holdings up 4.3%
    0
  • Price context
    24% below the 52-week high
    +4
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    3 buys in 90 days
    +5
  • 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.

This signal so far: 1m -10.1%, 3m -32.6%, 6m -49.5%.

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.

SINTOct 9, 2026 · close 2.11
Since filing Dec 9, 2025: -50.5%SPY +15.1% · excess -65.6%

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 0001493152-25-026777, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 8, 2025POpen-market purchase
Common Stock
+3,200$4.28$14k196,067Dec 9, 2025
Dec 8, 2025POpen-market purchase
Common Stock
+5,000$4.24$21k201,067Dec 9, 2025

Related signals

Other insiders at Sintx Technologies, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
46Moderate
SINTbuy 3
Sintx Technologies, Inc.
Christopher Michael Lyons
director
$24k
8,292 shares
-
44Moderate
SINTbuy 3
Sintx Technologies, Inc.
Jay M Moyes
director
$2,910
1,000 shares
+33%
44Moderate
SINTbuy 3
Sintx Technologies, Inc.
Mark Lewis Anderson
director
$9,060
3,000 shares
+20%
47Moderate
SINTbuy
Sintx Technologies, Inc.
Gregg R. Honigblum
Chief Investment Officer
$255k
65,000 shares
+88%
36Weak
SINTbuy
Sintx Technologies, Inc.
Gregg R. Honigblum
Chief Investment Officer
$32k
10,000 shares
+16%
44Moderate
SINTbuy
Sintx Technologies, Inc.
Eric K. Olson
President and CEO
$20k
5,800 shares
+23%
60Notable
SINTbuy 3
Sintx Technologies, Inc.
Gregg R. Honigblum
Chief Investment Officer
$185k
50,000 shares
+357%
46Moderate
SINTbuy 3
Sintx Technologies, Inc.
Jay M Moyes
director
$11k
3,000 shares
-
64Notable
SINTbuy 3
Sintx Technologies, Inc.
Eric K. Olson
President and CEO
$37k
10,475 shares
+72%
36Weak
SINTbuy
Sintx Technologies, Inc.
Mark Lewis Anderson
director
$33k
10,000 shares
+200%

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 R. Honigblum bought $35k of SINT | InsiderTell