Sam Tabar is Chief Executive Officer of WhiteFiber. Following the company's IPO on August 6, 2025, Tabar continues to hold his position at Bit Digital, Inc., WhiteFiber's majority shareholder, under a transition services agreement allocating approximately 70% of his working time to WhiteFiber and up to 30% to Bit Digital operations. As of March 1, 2026, Tabar beneficially owns 147,058 ordinary shares of WhiteFiber.
Biography extracted from WhiteFiber 10-K filed 2026-03-26 View cached copy (2026-08-31)Live source ↗
Roles
Contiguous filings for the same role are collapsed into a single tenure span. Click a row to see the underlying filings.
| Company | Role | Tenure | Filings |
|---|---|---|---|
| WhiteFiber | Chief Executive Officer | 2025-08 → present (1y 3mo) | 6 |
Show 6 underlying filings | |||
| WhiteFiber | Chief Executive Officer, Director | 2026-10 → present (1mo) | 1 |
Insider transactions
Totals for this person
| Bucket | Invested (shares) | Invested (USD) | Divested (shares) | Divested (USD) | Net direction | Txns | Invested @ last price | Divested @ last price |
|---|---|---|---|---|---|---|---|---|
| All time | 1,428,112 | $1000.0K | - | $0 | ↑ Invested $1000.0K | 28 | $14.80M | $0 |
| 2026 | 1,192,819 | $0 | - | $0 | Flat | 25 | $12.36M | $0 |
| 2025 | 235,293 | $1000.0K | - | $0 | ↑ Invested $1000.0K | 3 | $2.44M | $0 |
| 2025-Q4 | 176,470 | $0 | - | $0 | Flat | 2 | $1.83M | $0 |
| 2026-Q1 | 150,058 | $0 | - | $0 | Flat | 4 | $1.55M | $0 |
| 2026-Q3 | 14,158 | $0 | - | $0 | Flat | 2 | $146.7K | $0 |
| 2026-Q4 | 1,028,603 | $0 | - | $0 | Flat | 19 | $10.66M | $0 |
Invested = shares acquired (buys, grants, option exercises) — insider adding to the position. Divested = shares reduced (sells, dispositions, tax-withholding) — cash flowing TO the insider. Net direction shows which side wins on dollar terms in each bucket. % of holder's stake not yet computed (pending Form 3/4 holdings ingest). See methodology. The two @ last price columns restate the same share counts at the most recent share price we read (close of 2026-10-30); they are a valuation, not a cash flow, and they move every day the market does.
All transactions
| Date | Company | Kind | Shares | Amount (USD) | Value @ last price |
|---|---|---|---|---|---|
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-10-14 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 54,137 | - | $560.9K |
| 2026-07-24 | WhiteFiber | Grant / award / vesting · Restricted Stock Units | 7,079 | - | $73.3K |
Show older transactions (8 more)
| Date | Company | Kind | Shares | Amount (USD) | Value @ last price |
|---|---|---|---|---|---|
| 2026-07-24 | WhiteFiber | Option / RSU exercise · Ordinary Shares, $.01 par value | 7,079 | - | $73.3K |
| 2026-03-31 | WhiteFiber | Option / RSU exercise · Ordinary Shares, $.01 par value | 41,982 | - | $434.9K |
| 2026-03-31 | WhiteFiber | Grant / award / vesting · Restricted Stock Units | 41,982 | - | $434.9K |
| 2026-03-19 | WhiteFiber | Option / RSU exercise · Ordinary Shares, $.01 par value | 33,047 | - | $342.4K |
| 2026-03-19 | WhiteFiber | Grant / award / vesting · Restricted Stock Units | 33,047 | - | $342.4K |
| 2025-10-15 | WhiteFiber | Option / RSU exercise · Ordinary Shares, $.01 par value | 88,235 | - | $914.1K |
| 2025-10-15 | WhiteFiber | Grant / award / vesting · Restricted Stock Units | 88,235 | - | $914.1K |
| 2025-08-08 | WhiteFiber | Grant / award / vesting · Ordinary Shares | 58,823 | $999,991 | $609.4K |