William P Phelan
CIK 1311899 · last filed 2026-09-04
William P Phelan is a corporate insider who has filed 45 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing shows the insider sold $13.5K of SLNH on Sep 4, 2026. Across all open-market trades the lifetime net is −$698.4K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.5M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
SLNH price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
325 WASHINGTON AVENUE EXTENSION
ALBANY, NY 12205
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SLNH | Director | 2,279,985 | $0.52 | $1.18M | -$538.5K | 5 | 2026-09-04 |
| SLNHP | Director | 114,120 | $10.49 | $1.20M | -$318.8K | 19 | 2026-06-22 |
| Soluna Holdings, Inc (MKTY) Delisted | Director | 244,750 | $12.66 | $3.10M | $0 | 13 | 2021-05-17 |
| PLUG | Director | 95,488 | $1.37 | $130.8K | $158.9K | 1 | 2016-11-02 |
Recent Filings
45 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-09-04 | SLNH | Sell (S) | −12,037 | -$13.5K | EDGAR |
| 2026-09-03 | SLNH | Notice (144) | −12,037 | -$12.7K | EDGAR |
| 2026-09-01 | SLNH | Sell (S) | −8,227 | -$100.2K | EDGAR |
| 2026-08-27 | SLNH | Sell (S) | −14,961 | -$180.3K | EDGAR |
| 2026-08-25 | SLNH | Sell (S) | −13,843 | -$167.0K | EDGAR |
| 2026-08-21 | SLNH | Sell (S) | −6,157 | -$77.5K | EDGAR |
| 2026-08-19 | SLNH | Notice (144) | −43,188 | -$539.4K | EDGAR |
| 2026-06-22 | SLNHP | Sell (S) | −18,000 | -$195.5K | EDGAR |
| 2026-06-17 | SLNH | Notice (144) | −18,000 | -$192.6K | EDGAR |
| 2026-06-03 | SLNHP | Grant (A) | +973,307 | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.