Insider · CIK 0001243628
Michael Toporek
Files at SLNH (Soluna Holdings, Inc), CAPS (Capstone Holding Corp.). First filing Nov 7, 2024, latest Jul 24, 2026.
In brief
Michael Toporek files SEC Form 4 as director and 10% owner at SLNH (Soluna Holdings, Inc), and also at CAPS (Capstone Holding Corp.). Since Nov 7, 2024, Michael Toporek has reported 1 open-market buy worth $167k and 4 open-market sells worth $328k, the latest filed on Jul 24, 2026.
A track record needs three past buys with six months of prices behind them; Michael Toporek has 0, so none is measured yet.
The newest scored trade: bought $167k of CAPS on Mar 7, 2025, filed Jul 24, 2026, scored 49 (moderate). In the last 12 months: 1 buy worth $167k and 0 sells worth $0.
Where the trades landed
Last year at the 2 companies this insider has traded most, with each buy and sell on the bar it happened.
SLNH: Soluna Holdings, 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™
CAPS: Capstone Holding Corp.
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 |
|---|---|---|---|---|---|
| 49Moderate | Capstone Holding Corp. | $167k 41,750 shares | - | - | |
| 30Weak | Soluna Holdings, Inc | $6,780 674 shares | -0% | - | |
| 30Weak | Soluna Holdings, Inc | $2,343 220 shares | -0% | - | |
| 40Moderate | Soluna Holdings, Inc | $111k 30,980 shares | -100% | - | |
| 42Moderate | Soluna Holdings, Inc | $208k 59,120 shares | -66% | - |
Transactions
Every row this insider has filed, 18 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 7, 2026 | CAPS Capstone Holding Corp. | AGrant or award Common Stock | +1,094,647 | - | - | 1,492,647 | Aug 11, 2026 |
| Mar 30, 2026 | CAPS Capstone Holding Corp. | AGrant or award Common Stock | +356,250 | - | - | 391,678 | Jul 24, 2026 |
| Mar 7, 2025 | CAPS Capstone Holding Corp. | POpen-market purchase Common Stock | +41,750 | $4.00 | $167k | 41,750 | Jul 24, 2026 |
| Jun 1, 2026 | SLNH Soluna Holdings, Inc | AGrant or award Common Stock | +7,310,534 | $0.00 | $0 | 17,132,816 | Jun 3, 2026 |
| Mar 30, 2026 | CAPS Capstone Holding Corp. | AGrant or award Restricted Stock Awardderivative | +356,250 | $0.65 | $231k | 356,250 | Apr 1, 2026 |
| Dec 1, 2025 | SLNH Soluna Holdings, Inc | AGrant or award Common Stock | +6,894,614 | $0.00 | $0 | 9,822,282 | Dec 3, 2025 |
| Sep 1, 2025 | SLNH Soluna Holdings, Inc | AGrant or award Common Stock | +1,003,176 | $0.00 | $0 | 2,927,668 | Sep 2, 2025 |
| Jun 1, 2025 | SLNH Soluna Holdings, Inc | AGrant or award Common Stock | +744,454 | $0.00 | $0 | 1,924,492 | Jun 3, 2025 |
| Dec 10, 2024 | SLNH Soluna Holdings, Inc | SOpen-market sale 9.0% Series A Cumulative Perpetual Preferred Stock | -100 | $10.40 | $1,040 | 1,246,762 | Dec 12, 2024 |
| Dec 11, 2024 | SLNH Soluna Holdings, Inc | SOpen-market sale 9.0% Series A Cumulative Perpetual Preferred Stock | -574 | $10.00 | $5,740 | 1,246,188 | Dec 12, 2024 |
| Dec 5, 2024 | SLNH Soluna Holdings, Inc | SOpen-market sale 9.0% Series A Cumulative Perpetual Preferred Stock | -12 | $11.50 | $138 | 1,247,070 | Dec 9, 2024 |
| Dec 9, 2024 | SLNH Soluna Holdings, Inc | SOpen-market sale 9.0% Series A Cumulative Perpetual Preferred Stock | -208 | $10.60 | $2,205 | 1,246,862 | Dec 9, 2024 |
| Dec 1, 2024 | SLNH Soluna Holdings, Inc | AGrant or award Common Stock | +370,402 | $0.00 | $0 | 1,180,038 | Dec 3, 2024 |
| Nov 8, 2024 | SLNH Soluna Holdings, Inc | SOpen-market sale Common Stockindirect: See Footnote10b5-1 | -21,900 | $3.42 | $75k | 9,080 | Nov 12, 2024 |
| Nov 11, 2024 | SLNH Soluna Holdings, Inc | SOpen-market sale Common Stockindirect: See Footnote10b5-1 | -9,080 | $4.00 | $36k | 0 | Nov 12, 2024 |
| Nov 5, 2024 | SLNH Soluna Holdings, Inc | SOpen-market sale Common Stockindirect: See Footnote10b5-1 | -11,000 | $3.23 | $36k | 79,100 | Nov 7, 2024 |
| Nov 6, 2024 | SLNH Soluna Holdings, Inc | SOpen-market sale Common Stockindirect: See Footnote10b5-1 | -23,700 | $3.56 | $84k | 55,400 | Nov 7, 2024 |
| Nov 7, 2024 | SLNH Soluna Holdings, Inc | SOpen-market sale Common Stockindirect: See Footnote10b5-1 | -24,420 | $3.59 | $88k | 30,980 | Nov 7, 2024 |
Questions about Michael Toporek
Answered from the filings on this page, as of the latest one.
Is Michael Toporek buying or selling?
In the last 12 months Michael Toporek reported 1 open-market buy worth $167k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $167k of CAPS on Mar 7, 2025. Grants, option exercises and tax withholding are not counted.
How did Michael Toporek's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Michael Toporek has 0.
Where does Michael Toporek file Form 4?
Michael Toporek has filed Form 4 at SLNH (Soluna Holdings, Inc); CAPS (Capstone Holding Corp.). 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.