WYFI · WhiteFiber, Inc. · Insider Trading
One customer — 63% of revenue (six months ended June 30, 2026)
“Our largest customer accounted for approximately 63% of our revenue during the six months ended June 30, 2026.”
Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.
| Date | Insider | Role | Type | Security | Shares |
|---|---|---|---|---|---|
| 2026-08-03 | Shih Ichi |
Director |
Award↑
Filing footnotes — Ordinary Shares (Direct)
The Ordinary Shares were valued at $25.77 per share, the closing market price of the Company's Ordinary Shares on August 3, 2026, the measurement date for the RSUs, rounded to the nearest whole share, and issued in a transaction exempt pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. Represents Ordinary Shares, par value $0.01 per share, of the Issuer, issued upon vesting of Restricted Stock Units ("RSUs") immediately on the grant date, August 3, 2026. The RSUs were granted pursuant to Company's 2025 Omnibus Equity Incentive Plan in connection with the renewal of the Reporting Person's compensation as an independent director under the Second Amendment to Director Agreement, dated August 1, 2026 (the "Second Amendment"), by and between the Reporting Person and the Company. |
Ordinary Shares
|
4,657 |
| 2026-08-01 | Zhu Justin |
VP of Finance & CAO |
Award↑
Filing footnotes — Ordinary Shares (Direct)
These Ordinary Shares were valued at $23.70 per share, the closing market price of the Company's Ordinary Shares on July 31, 2026, the measurement date for the RSUs, rounded to the nearest whole share and issued in a transaction exempt pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. Represents Ordinary Shares, par value $0.01 per share, of the Issuer, issued upon vesting of Restricted Stock Units ("RSUs") immediately on the grant date, August 1, 2026. The RSUs were granted as a signing bonus pursuant to the Reporting Person's employment agreement with the Company, effective August 1, 2026 (the "Employment Agreement"), entered into in connection with the Reporting Person's appointment as the Company's Chief Financial Officer, Principal Financial Officer and Principal Accounting Officer, as previously disclosed in the Issuer's Current Report on Form 8-K, previously filed on August 3, 2026. |
Ordinary Shares
|
4,219 |
| 2026-07-24 | Tabar Samir |
Chief Executive Officer |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued upon vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan") on the date the applicable performance milestone was achieved. These shares were valued at $38.85 the closing market price on June 30, 2026, when the RSUs vested. |
Ordinary Shares, $.01 par value
|
7,079 |
| 2026-07-24 | Huang Erke |
Director, Chief Financial Officer |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued upon vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan") on the date the applicable performance milestone was achieved. These shares were valued at $38.85 the closing market price on June 30, 2026, when the RSUs vested. |
Ordinary Shares, $.01 par value
|
7,079 |
| 2026-07-24 | Huang Erke |
Director, Chief Financial Officer |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents RSUs granted pursuant to the Plan. Each RSU represents the right to receive one Ordinary Share of the Issuer. These performance based RSUs were issued under the Plan in an exempt transaction pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. The RSUs immediately vested on the date of the grant. |
Restricted Stock Units
|
7,079 |
| 2026-07-24 | Tabar Samir |
Chief Executive Officer |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents RSUs granted pursuant to the Plan. Each RSU represents the right to receive one Ordinary Share of the Issuer. These performance based RSUs were issued under the Plan in an exempt transaction pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. The RSUs immediately vested on the date of the grant. |
Restricted Stock Units
|
7,079 |
| 2026-05-29 | Shih Ichi |
Director |
Sell↓
|
Ordinary Shares
|
7,059 |
| 2026-05-07 | Sanfilippo Thomas |
Chief Technology Officer |
Tax↓
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares sold to pay tax liability upon the vesting of the RSUs on April 31, 2026 and previously reported on February 12, 2026, under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan") pursuant to Rule 16b-3. This does not represent a discretionary transaction by a reporting person. These shares were sold at $21.00, the average sales price on May 7, 2026. |
Ordinary Shares, $.01 par value
|
955 |
| 2026-04-28 | Krassakopoulos Billy |
President |
Tax↓
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares sold by the issuer solely to satisfy tax withholding obligations in connection with the net issuance of Ordinary Shares delivered to the Reporting Person on March 16, 2026, from the vesting of RSUs, and does not represent a sale by the Reporting Person These shares were sold at $15.48 the average market price on April 28, 2026. This does not represent a discretionary transaction by a reporting person. |
Ordinary Shares, $.01 par value
|
8,490 |
| 2026-03-31 | Huang Erke |
Director, Chief Financial Officer |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued upon vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan") on the date the applicable performance milestone was achieved. These shares were valued at $11.91 the closing market price on March 31, 2026, when the RSUs vested. |
Ordinary Shares, $.01 par value
|
41,982 |
| 2026-03-31 | Tabar Samir |
Chief Executive Officer |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued upon vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan") on the date the applicable performance milestone was achieved. These shares were valued at $11.91 the closing market price on March 31, 2026, when the RSUs vested. |
Ordinary Shares, $.01 par value
|
41,982 |
| 2026-03-31 | Tabar Samir |
Chief Executive Officer |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents RSUs granted pursuant to the Plan. Each RSU represents the right to receive one Ordinary Share of the Issuer. These performance based RSUs were issued under the Plan in an exempt transaction pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. The RSUs immediately vested on the date of the grant. |
Restricted Stock Units
|
41,982 |
| 2026-03-31 | Huang Erke |
Director, Chief Financial Officer |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents RSUs granted pursuant to the Plan. Each RSU represents the right to receive one Ordinary Share of the Issuer. These performance based RSUs were issued under the Plan in an exempt transaction pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. The RSUs immediately vested on the date of the grant. |
Restricted Stock Units
|
41,982 |
| 2026-03-19 | Huang Erke |
Director, Chief Financial Officer |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued upon the immediate vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan"). These shares were valued at $15.13 the closing market price on March 19, 2026. |
Ordinary Shares, $.01 par value
|
66,094 |
| 2026-03-19 | Huang Erke |
Director, Chief Financial Officer |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents RSUs granted pursuant to the Plan. Each RSU represents the right to receive one Ordinary Share of the Issuer. These performance based RSUs were issued under the Plan in an exempt transaction pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. |
Restricted Stock Units
|
66,094 |
| 2026-03-19 | Tabar Samir |
Chief Executive Officer |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued upon the immediate vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan"). These shares were valued at $15.13 the closing market price on March 19, 2026. |
Ordinary Shares, $.01 par value
|
33,047 |
| 2026-03-19 | Tabar Samir |
Chief Executive Officer |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents RSUs granted pursuant to the Plan. Each RSU represents the right to receive one Ordinary Share of the Issuer. These performance based RSUs were issued under the Plan in an exempt transaction pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. |
Restricted Stock Units
|
33,047 |
| 2026-03-16 | Krassakopoulos Billy |
President |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued upon the immediate vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan"). These shares were valued at $15.80 the closing market price on December 31, 2025, the Measurement Date under the RSU. |
Ordinary Shares, $.01 par value
|
15,624 |
| 2026-03-16 | Krassakopoulos Billy |
President |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Thee RSUs are Performance Vesting RSUs under an RSU Award Agreement dated August 7, 2025 based on Growth EBITDA as of December 31, 2025. The performance RSUs were vested on March 16, 2026, the date when vesting was determined by the Company. |
Restricted Stock Units
|
15,624 |
| 2026-02-10 | Sanfilippo Thomas |
Chief Technology Officer |
Tax↓
Filing footnotes — Ordinary Shares, $01 par value (Direct)
Represents Ordinary Shares sold to pay tax liability upon the vesting of the RSUs on April 31, 2026 and previously reported on February 12, 2026, under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan") pursuant to Rule 16b-3. This does not represent a discretionary transaction by a reporting person. These shares were sold at $19.31, the average sales price on February10, 2026. |
Ordinary Shares, $01 par value
|
1,500 |
| 2026-02-04 | Sanfilippo Thomas |
Chief Technology Officer |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued on February 4, 2026, previously granted under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan"). On January 31, 2026, an aggregate of 4,412 of the Restricted Stock Units ("RSUs") vested. The remaining 48,532 RSUs shall vest in equal quarterly installments from February 1, 2026 through October 31, 2028. These shares were valued at $19.51, the closing market price on January 30, 2026, the last trading day before the date of the vesting of the RSUs. |
Ordinary Shares, $.01 par value
|
4 |
| 2026-01-13 | Krassakopoulos Billy |
President |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents 327 Ordinary Shares issued on January 13, 2026, as a result of an administrative error related to the October 31, 2025 issuance. The RSUs were issued in exchange for Bit Digital, Inc. RSUs previously granted to Mr. Krassakopoulos by Bit Digital, Inc. prior to the IPO of WhiteFiber, Inc. |
Restricted Stock Units
|
327 |
| 2026-01-13 | Krassakopoulos Billy |
President |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents 327 Ordinary Shares issued on January 13, 2026, as a result of an administrative error related to the October 31, 2025 issuance. The RSUs were issued in exchange for Bit Digital, Inc. RSUs previously granted to Mr. Krassakopoulos by Bit Digital, Inc. prior to the IPO of WhiteFiber, Inc. These shares were valued at $18.43 the closing market price on January 13, 2026. This does not represent a discretionary transaction by a reporting person. |
Ordinary Shares, $.01 par value
|
327 |
| 2025-11-17 | Krassakopoulos Billy |
President |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan"), pursuant to an exchange of the restricted share units (RSUs) originally issued by Bit Digital, Inc. On October 31, 2025, an aggregate of 661 of such RSUs vested. The remaining 1992 RSUs shall vest in 13 quarterly installments. These shares were valued at $18.25 the closing market price on November 17, 2025. |
Ordinary Shares, $.01 par value
|
2,653 |
| 2025-10-31 | Sanfilippo Thomas |
Chief Technology Officer |
Award↑
Filing footnotes — Restricted Stock Unit (Direct)
This award was granted on September 11, 2025, and first vested on October 31, 2025. These RSUs shall vest in equal quarterly installments ending on October 31, 2028. |
Restricted Stock Unit
|
76,977 |
| 2025-10-31 | Sanfilippo Thomas |
Chief Technology Officer |
Tax↓
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares sold to pay tax liability upon the vesting of the RSUs awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan") pursuant to Rule 16b-3 including the 6,389 Ordinary Shares issued on January 13, 2026 described in Note 1 above. This does not represent a discretionary transaction by a reporting person. Each RSU represents the right to receive, at settlement, one Ordinary Share. This transaction represents the settlement of RSUs in Ordinary Shares on their scheduled vesting date and the average closing price was determined on the dates thereof in accordance with applicable terms of the RSU. |
Ordinary Shares, $.01 par value
|
13,082 |
| 2025-10-31 | Sanfilippo Thomas |
Chief Technology Officer |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued on October 31, 2025, under WhiteFiber, Inc.'s 2025 Omnibus Equity Incentive Plan (the "Plan"), due to vesting of the Restricted Stock Units ("RSUs") granted under the Plan on September 11, 2025 and not previously reported on Form 4. The RSUs were issued in exchange for Bit Digital, Inc. RSUs previously granted to Mr. Sanfilippo by Bit Digital, Inc. prior to the IPO of WhiteFiber, Inc. Includes 6,389 Ordinary Shares issued on January 13, 2026, as a result of an administrative error related to the October 31, 2025 issuance. Each RSU represents the right to receive, at settlement, one Ordinary Share. This transaction represents the settlement of RSUs in Ordinary Shares on their scheduled vesting date and the average closing price was determined on the dates thereof in accordance with applicable terms of the RSU. |
Ordinary Shares, $.01 par value
|
24,033 |
| 2025-10-15 | Tabar Samir |
Chief Executive Officer |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents RSUs granted pursuant to the Plan. Each RSU represents the right to receive one Ordinary Share of the Issuer. These performance based RSUs were issued under the Plan in an exempt transaction pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. |
Restricted Stock Units
|
88,235 |
| 2025-10-15 | Huang Erke |
Director, Chief Financial Officer |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued upon the immediate vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan"). These shares were valued at $20.57 the closing market price on September 11, 2025. |
Ordinary Shares, $.01 par value
|
88,235 |
| 2025-10-15 | Huang Erke |
Director, Chief Financial Officer |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents RSUs granted pursuant to the Plan. Each RSU represents the right to receive one Ordinary Share of the Issuer. These performance based RSUs were issued under the Plan in an exempt transaction pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. |
Restricted Stock Units
|
88,235 |
| 2025-10-15 | Shih Ichi |
Director |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents RSUs granted pursuant to the Plan, granted on 08/07/2025 and reported on Form 4 on 08/08/2025. Each RSU represents the right to receive one Ordinary Share of the Issuer. These performance-based RSUs were issued under the Plan in an exempt transaction pursuant to Rule 16b-3 under the Securities Exchange Act of 1934. Represents the number of shares rounded to the nearest whole share. |
Restricted Stock Units
|
7,058 |
| 2025-10-15 | Tabar Samir |
Chief Executive Officer |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued upon the immediate vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan"). These shares were valued at $20.57 the closing market price on September 11, 2025. |
Ordinary Shares, $.01 par value
|
88,235 |
| 2025-10-15 | Shih Ichi |
Director |
Convert↑
Filing footnotes — Ordinary Shares, $.01 par value (Direct)
Represents Ordinary Shares issued upon vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan"). These shares were valued at $20.57 the closing market price on September 11, 2025. |
Ordinary Shares, $.01 par value
|
7,059 |
| 2025-08-08 | Tabar Samir |
Chief Executive Officer |
Award↑
Filing footnotes — Ordinary Shares (Direct)
Represents shares purchased in the Issuer's initial public offering. |
Ordinary Shares
|
58,823 |
| 2025-08-08 | Shih Ichi |
Director |
Award↑
Filing footnotes — Restricted Stock Units (Direct)
Represents restricted stock units ("RSUs") granted pursuant to the 2025 Omnibus Equity Incentive Plan of WhiteFiber, Inc. (the "Issuer"). Each RSU represents the right to receive one Ordinary Share of the Issuer. These RSUs were granted upon the commencement of trading of the Issuer's Ordinary Shares on the Nasdaq Capital Market in connection with the Issuer's initial public offering. The RSUs immediately vested at the time of grant. |
Restricted Stock Units
|
7,058 |
| 2025-08-08 | Andre David |
Director |
Award↑
Filing footnotes — Ordinary Shares (Direct)
Represents shares purchased in the Issuer's initial public offering. |
Ordinary Shares
|
588 |
| 2025-08-08 | Krassakopoulos Billy |
President |
Award↑
Filing footnotes — Ordinary Shares (Direct)
Represents shares purchased in the Issuer's initial public offering. |
Ordinary Shares
|
8,823 |