WhiteFiber, Inc.
Ownership
Ownership Structure
Who owns WhiteFiber, Inc. (WYFI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 28.9% of the shares are freely tradable; institutional investors hold 24.2%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Situational Awareness LP | 4.52 | 1,757,600 | +0.0 | 06/30/2026 |
| BlackRock Inc | 2.06 | 800,577 | +7.8 | 06/30/2026 |
| Capital World Investors | 1.85 | 719,612 | +0.0 | 06/30/2026 |
| Driehaus Capital Management LLC | 1.50 | 582,371 | +0.0 | 06/30/2026 |
| D. E. Shaw & Co LP | 1.05 | 409,655 | +0.0 | 06/30/2026 |
| T. Rowe Price Associates, Inc. | 1.03 | 398,891 | +212.2 | 06/30/2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1.00 | 390,042 | +72.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| American Funds SMALLCAP World A | 1.80 | 700,608 | +0.0 | 09/30/2026 |
| CoinShares Bitcoin Mng and Dgtl Pwr ETF | 1.26 | 488,571 | -3.0 | 10/30/2026 |
| iShares Russell 2000 ETF | 0.82 | 319,902 | +0.0 | 10/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Tabar Samir | Chief Executive Officer | 283,303 | 2,946,351 $ | Oct 14, 2026 | direct |
| Sanfilippo Thomas | Chief Technology Officer | 24,885 | 258,804 $ | Oct 31, 2026 | direct |
| Zhu Justin | Chief Financial Officer | 23,935 | 248,924 $ | Oct 15, 2026 | direct |
| Krassakopoulos Billy | President, Data Centers | 23,700 | 246,480 $ | Nov 6, 2026 | direct |
| Shih Ichi | Director | 4,657 | 48,433 $ | May 29, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Nov 6, 2026 | Krassakopoulos Billy | President, Data Centers | Other | 4,763 | – | – |
| Oct 31, 2026 | Sanfilippo Thomas | Chief Technology Officer | Other | 4,412 | – | – |
| Oct 15, 2026 | Zhu Justin | Chief Financial Officer | Other | 14,080 | 12.20 | 171,776 |
| Oct 14, 2026 | Tabar Samir | Chief Executive Officer | Other | 54,137 | – | – |
| Oct 14, 2026 | Zhu Justin | Chief Financial Officer | Other | 26,374 | – | – |
| Aug 27, 2026 | Zhu Justin | Chief Financial Officer | Other | 2,060 | 20.39 | 42,003 |
| Aug 5, 2026 | Sanfilippo Thomas | Chief Technology Officer | Other | 1,259 | 26.34 | 33,162 |
| Jul 31, 2026 | Sanfilippo Thomas | Chief Technology Officer | Other | 4,412 | – | – |
| May 29, 2026 | Shih Ichi | Director | Sell | 7,059 | 30.12 | 212,617 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 11, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.