Insider · CIK 0001408053
Gregg R. Honigblum
Files at SINT (Sintx Technologies, Inc.). First filing Apr 30, 2025, latest Dec 9, 2025.
Gregg R. Honigblum files SEC Form 4 as officer and director at SINT (Sintx Technologies, Inc.). Since Apr 30, 2025, Gregg R. Honigblum has reported 6 open-market buys worth $532k and 0 open-market sells worth $0, the latest filed on Dec 9, 2025.
A track record needs three past buys with six months of prices behind them; Gregg R. Honigblum has 0, so none is measured yet.
The newest scored trade: bought $35k of SINT on Dec 8, 2025, filed Dec 9, 2025, scored 30 (weak). In the last 12 months: 3 buys worth $322k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
SINT: Sintx Technologies, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 30Weak | SINTbuy Sintx Technologies, Inc. | $35k 8,200 shares | +4% | +143% from low-24% from high | |
| 47Moderate | SINTbuy Sintx Technologies, Inc. | $255k 65,000 shares | +88% | +133% from low-27% from high | |
| 36Weak | SINTbuy Sintx Technologies, Inc. | $32k 10,000 shares | +16% | +89% from low-48% from high | |
| 60Notable | Sintx Technologies, Inc. | $185k 50,000 shares | +357% | +120% from low-40% from high | |
| 54Moderate | Sintx Technologies, Inc. | $7,160 4,000 shares | +40% | +1% from low-72% from high | |
| 56Moderate | Sintx Technologies, Inc. | $18k 10,000 shares | - | +1% from low-72% from high |
Transactions
Every row this insider has filed, 34 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Feb 6, 2026 | SINT Sintx Technologies, Inc. | AGrant or award Restricted Stock Unitsderivative | +75,000 | $0.00 | $0 | 133,000 | Feb 10, 2026 |
| Dec 8, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +3,200 | $4.28 | $14k | 196,067 | Dec 9, 2025 |
| Dec 8, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $4.24 | $21k | 201,067 | Dec 9, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.95 | $20k | 79,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.94 | $20k | 84,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $4.00 | $20k | 89,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $4.07 | $20k | 94,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $4.02 | $20k | 99,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.94 | $20k | 104,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.91 | $20k | 109,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.91 | $20k | 114,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.91 | $20k | 119,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.88 | $19k | 124,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.86 | $19k | 129,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.91 | $20k | 134,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.77 | $19k | 139,000 | Dec 8, 2025 |
| Dec 5, 2025 | SINT Sintx Technologies, Inc. | AGrant or award Common Stock | +53,867 | $0.00 | $0 | 192,867 | Dec 8, 2025 |
| Nov 7, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.20 | $16k | 69,000 | Nov 10, 2025 |
| Nov 7, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.18 | $16k | 74,000 | Nov 10, 2025 |
| Aug 26, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.60 | $18k | 19,000 | Aug 27, 2025 |
| Aug 26, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.66 | $18k | 24,000 | Aug 27, 2025 |
| Aug 26, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.70 | $19k | 29,000 | Aug 27, 2025 |
| Aug 26, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.68 | $18k | 34,000 | Aug 27, 2025 |
| Aug 26, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.74 | $19k | 39,000 | Aug 27, 2025 |
| Aug 26, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.73 | $19k | 44,000 | Aug 27, 2025 |
| Aug 26, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.69 | $18k | 49,000 | Aug 27, 2025 |
| Aug 26, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.72 | $19k | 54,000 | Aug 27, 2025 |
| Aug 26, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.75 | $19k | 59,000 | Aug 27, 2025 |
| Aug 26, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +5,000 | $3.73 | $19k | 64,000 | Aug 27, 2025 |
| Apr 22, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +4,000 | $1.79 | $7,160 | 14,000 | May 1, 2025 |
| Apr 22, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +3,000 | $1.76 | $5,280 | 3,000 | Apr 30, 2025 |
| Apr 22, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +3,000 | $1.77 | $5,320 | 6,000 | Apr 30, 2025 |
| Apr 22, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +3,808 | $1.77 | $6,723 | 9,808 | Apr 30, 2025 |
| Apr 22, 2025 | SINT Sintx Technologies, Inc. | POpen-market purchase Common Stock | +192 | $1.79 | $344 | 10,000 | Apr 30, 2025 |
Questions about Gregg R. Honigblum
Answered from the filings on this page, as of the latest one.
Is Gregg R. Honigblum buying or selling?
In the last 12 months Gregg R. Honigblum reported 3 open-market buys worth $322k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $35k of SINT on Dec 8, 2025. Grants, option exercises and tax withholding are not counted.
How did Gregg R. Honigblum's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Gregg R. Honigblum has 0.
Where does Gregg R. Honigblum file Form 4?
Gregg R. Honigblum has filed Form 4 at SINT (Sintx Technologies, Inc.) as Chief Investment Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
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.