WhiteFiber, Inc. (WYFI) · Insider trading
What WhiteFiber's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$212,617
1 insider, 0% under a plan
Net, 12 months
−$212,617
bought less sold
Latest filing
2026-10-16
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Shih IchiDirector | – | $212,617 | 1 | 2026-05-29 | 4,657 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-29 | Shih IchiDirector | Sale | 7,059 | 30.12 | $212,617 | 4,657 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
15 × option exercise7 × shares withheld for tax7 × grant or award
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-10-15 | Zhu JustinChief Financial Officer | Shares withheld for tax F | −14,080 | 12.20 | 23,935 | Form 4 |
| 2026-10-14 | Zhu JustinChief Financial Officer | Grant or award A | +26,374 | – | 38,015 | Form 4 |
| 2026-10-14 | Tabar SamirDirector, Chief Executive Officer | Grant or award A | +54,137 | – | 283,303 | Form 4 |
| 2026-08-27 | Zhu JustinChief Financial Officer | Shares withheld for tax F | −2,060 | 20.39 | 11,641 | Form 4 |
| 2026-08-05 | Sanfilippo ThomasChief Technology Officer | Shares withheld for tax F | −1,259 | 26.34 | 20,473 | Form 4 |
| 2026-08-03 | Shih IchiDirector | Grant or award A | +4,657 | – | 4,657 | Form 4 |
| 2026-08-01 | Zhu JustinChief Financial Officer | Grant or award A | +4,219 | – | 13,701 | Form 4 |
| 2026-07-31 | Sanfilippo ThomasChief Technology Officer | Option exercise M | +4,412 | – | 21,732 | Form 4 |
| 2026-07-24 | Huang ErkeDirector, Chief Financial Officer | Option exercise M | +7,079 | – | 203,390 | Form 4 |
| 2026-07-24 | Tabar SamirChief Executive Officer | Option exercise M | +7,079 | – | 229,166 | Form 4 |
| 2026-05-07 | Sanfilippo ThomasChief Technology Officer | Shares withheld for tax F | −955 | 21.00 | 17,320 | Form 4 |
| 2026-04-28 | Krassakopoulos BillyPresident | Shares withheld for tax F | −8,490 | – | 18,937 | Form 4 |
| 2026-03-31 | Huang ErkeDirector, Chief Financial Officer | Option exercise M | +41,982 | – | 196,311 | Form 4 |
| 2026-03-31 | Tabar SamirChief Executive Officer | Option exercise M | +41,982 | – | 222,087 | Form 4 |
| 2026-03-19 | Tabar SamirChief Executive Officer | Option exercise M | +33,047 | – | 180,105 | Form 4 |
| 2026-03-19 | Huang ErkeDirector, Chief Financial Officer | Option exercise M | +66,094 | – | 154,329 | Form 4 |
| 2026-03-16 | Krassakopoulos BillyPresident | Option exercise M | +15,624 | – | 27,427 | Form 4 |
| 2026-02-10 | Sanfilippo ThomasChief Technology Officer | Shares withheld for tax F | −1,500 | 19.31 | 13,863 | Form 4 |
| 2026-02-04 | Sanfilippo ThomasChief Technology Officer | Option exercise M | +4 | – | 15,363 | Form 4/A |
| 2026-01-13 | Krassakopoulos BillyPresident | Option exercise M | +327 | – | 11,803 | Form 4 |
| 2025-11-17 | Krassakopoulos BillyPresident | Option exercise M | +2,653 | – | 11,476 | Form 4 |
| 2025-10-31 | Sanfilippo ThomasChief Technology Officer | Shares withheld for tax F | −13,082 | 18.52 | 6,544 | Form 5/A |
| 2025-10-31 | Sanfilippo ThomasChief Technology Officer | Option exercise M | +24,033 | 29.85 | 17,644 | Form 5/A |
| 2025-10-15 | Tabar SamirChief Executive Officer | Option exercise M | +88,235 | – | 147,058 | Form 4 |
| 2025-10-15 | Huang ErkeDirector, Chief Financial Officer | Option exercise M | +88,235 | – | 88,235 | Form 4 |
| 2025-10-15 | Shih IchiDirector | Option exercise M | +7,059 | – | 7,059 | Form 4 |
| 2025-08-08 | Krassakopoulos BillyPresident | Grant or award A | +8,823 | 17.00 | 8,823 | Form 4 |
| 2025-08-08 | Andre DavidDirector | Grant or award A | +588 | 17.00 | 588 | Form 4 |
| 2025-08-08 | Tabar SamirChief Executive Officer | Grant or award A | +58,823 | 17.00 | 58,823 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.