WhiteFiber WYFI Insider Ownership

NASDAQ WYFI
$8.88 +1.08 (+13.85%)
At close: Nov 6, 2026 · 4:00 PM EST

Insider Holdings by Owner

820.11K Shares
Samir Tabar512.47K62.5%
Erke Huang203.39K24.8%
Thomas Sanfilippo40.25K4.9%
Billy Krassakopoulos27.76K3.4%
Justin Zhu23.94K2.9%
Other insiders (2)12.30K1.5%

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
1.28%
▲+0.308% pp QoQ
Shares Held by Insiders
496.04K
filed for Sep 2026
▲+31.79% QoQ
Shares Outstanding
38.84Mn
38,841,201 shares
Direct Holdings
496.04K
Indirect: 0
Net Open-Market Trades
0
no open-market trades in Sep 2026
Insiders Holding Shares
7
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Open-Market Insider Trades

Bought Sold
Latest quarter —
Net over range —
Net-buying quarters —

Insider Ownership Summary

Updated

Across the past 12 months, WhiteFiber insiders reported no open-market purchases or sales.

Form 4 Holdings

Insiders Holding WYFI

Insiders 7
Shares held 820.11K
Of outstanding 2.11%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Samir Tabar Chief Executive Officer 512,469 0 512,469 62.5% 16 Oct, 2026
2 Erke Huang Chief Financial Officer 203,390 0 203,390 24.8% 28 Jul, 2026
3 Thomas Sanfilippo Chief Technology Officer 40,248 0 40,248 4.9% 02 Nov, 2026
4 Billy Krassakopoulos President 27,760 0 27,760 3.4% 29 Apr, 2026
5 Justin Zhu Chief Financial Officer 23,935 0 23,935 2.9% 16 Oct, 2026
6 Ichi Shih Director 11,716 0 11,716 1.4% 04 Aug, 2026
7 David Andre Director 588 0 588 0.1% 08 Aug, 2025

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

34 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
31 Oct, 2026 Thomas Sanfilippo Chief Technology Officer Acquired M 4,412 — — 24,885 Direct
31 Oct, 2026 Thomas Sanfilippo Chief Technology Officer Disposed M 4,412 $0.00 $0 35,296 Direct
27 Aug, 2026 Justin Zhu Chief Financial Officer Disposed F 2,060 $20.39 $42.00K 11,641 Direct
14 Oct, 2026 Samir Tabar Chief Executive Officer Acquired A 54,137 — — 283,303 Direct
14 Oct, 2026 Justin Zhu Chief Financial Officer Acquired A 26,374 — — 38,015 Direct
15 Oct, 2026 Justin Zhu Chief Financial Officer Disposed F 14,080 $12.20 $171.78K 23,935 Direct
01 Aug, 2026 Justin Zhu Chief Financial Officer Acquired A 4,219 — — 13,701 Direct
03 Aug, 2026 Ichi Shih Director Acquired A 4,657 — — 4,657 Direct
24 Jul, 2026 Samir Tabar Chief Executive Officer Acquired M 7,079 — — 229,166 Direct
24 Jul, 2026 Erke Huang Chief Financial Officer Acquired M 7,079 — — 203,390 Direct
24 Jul, 2026 Erke Huang Chief Financial Officer Acquired A 7,079 $0.00 $0 7,079 Direct
24 Jul, 2026 Samir Tabar Chief Executive Officer Acquired A 7,079 $0.00 $0 7,079 Direct
28 Apr, 2026 Billy Krassakopoulos President Disposed F 8,490 — — 18,937 Direct
19 Mar, 2026 Erke Huang Chief Financial Officer Acquired M 66,094 — — 154,329 Direct
19 Mar, 2026 Samir Tabar Chief Executive Officer Acquired M 33,047 — — 180,105 Direct
19 Mar, 2026 Erke Huang Chief Financial Officer Acquired A 66,094 $0.00 $0 66,094 Direct
19 Mar, 2026 Samir Tabar Chief Executive Officer Acquired A 33,047 $0.00 $0 33,047 Direct
16 Mar, 2026 Billy Krassakopoulos President Acquired M 15,624 — — 27,427 Direct
13 Jan, 2026 Billy Krassakopoulos President Acquired M 327 — — 11,803 Direct
16 Mar, 2026 Billy Krassakopoulos President Acquired A 15,624 $0.00 $0 15,624 Direct