William B. Horne
CIK 1333268 · Chief Executive Officer · last filed 2026-05-08
William B. Horne is a Chief Executive Officer who has filed 41 SEC Form 4 insider transactions across 6 companies since 2017. The most recent filing, for GPUSpD, was dated May 8, 2026. Across all open-market trades the lifetime net is +$17.0K, making them a net buyer over the disclosed history.
"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.
$0
6
41
$17.0K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| GPUSpD | Chief Executive Officer | 0 | $19.54 | $0 | -$10 | 2 | 2026-05-08 |
| ALZN | Director | 0 | $1.21 | $0 | $6.0K | 9 | 2025-12-23 |
| Hyperscale Data, Inc. (AULTpD) Delisted | Chief Executive Officer | 603,306 | $21.88 | $13.20M | $0 | 1 | 2023-01-11 |
| Hyperscale Data, Inc. (NILEpD) Delisted | Chief Executive Officer | 303,306 | $14.00 | $4.25M | $0 | 2 | 2022-11-17 |
| Hyperscale Data, Inc. (NILE) Delisted | Chief Executive Officer | 203,306 | $0.12 | $24.9K | $0 | 1 | 2022-05-17 |
| Hyperscale Data, Inc. (DPW) Delisted | Chief Executive Officer | 136,639 | $1.60 | $218.6K | $11.0K | 15 | 2021-12-03 |
Recent Filings
41 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-08 | GPUSpD | Grant (A) | — | $0 | EDGAR |
| 2025-12-23 | ALZN | Sell (S) | −3,333 | -$7.1K | EDGAR |
| 2025-03-27 | ALZN | Buy (P) | +3,334 | $3.3K | EDGAR |
| 2025-03-20 | ALZN | Buy (P) | +5,000 | $4.9K | EDGAR |
| 2025-03-19 | ALZN | Mixed | +15,000 | $5.5K | EDGAR |
| 2025-01-02 | GPUSpD | Sell (S) | −2 | -$10 | EDGAR |
| 2023-02-28 | ALZN | Exer (M) | +500,000 | $2.0K | EDGAR |
| 2023-01-11 | Hyperscale Data, Inc. (AULTpD) Delisted | Exer (M) | +300,000 | $0 | EDGAR |
| 2022-11-30 | ALZN | — | — | $0 | EDGAR |
| 2022-11-17 | Hyperscale Data, Inc. (NILEpD) Delisted | Exer (M) | +100,000 | $0 | EDGAR |