William B. Horne
CIK 1333268 · Chief Executive Officer · last filed 2026-05-08
"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.
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Disclosed Exposure
$0
Companies
6
Total Filings
41
Lifetime Open-Market Net
$17.0K
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 3 of 5
41 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-02-02 | Hyperscale Data, Inc. (DPW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-09-21 | Hyperscale Data, Inc. (DPW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2019-01-10 | Hyperscale Data, Inc. (DPW) Delisted | Buy (P) | +25,000 | $2.9K | EDGAR |
| 2018-12-21 | Hyperscale Data, Inc. (DPW) Delisted | Buy (P) | +16,000 | $1.6K | EDGAR |
| 2018-12-18 | Hyperscale Data, Inc. (DPW) Delisted | Buy (P) | +4,000 | $440 | EDGAR |
| 2018-01-30 | Hyperscale Data, Inc. (DPW) Delisted | Grant (A) | +1,000,000 | $0 | EDGAR |
| 2017-12-21 | Hyperscale Data, Inc. (DPW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2017-12-01 | Hyperscale Data, Inc. (DPW) Delisted | Grant (A) | +200,000 | $0 | EDGAR |
| 2017-11-28 | Hyperscale Data, Inc. (DPW) Delisted | Grant (A) | +200,000 | $0 | EDGAR |
| 2017-02-07 | Hyperscale Data, Inc. (DPW) Delisted | Grant (A) | — | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.