WILLIAM TAI
CIK 1085619 · last filed 2025-08-08
WILLIAM TAI is a corporate insider who has filed 13 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for HUT, was dated Aug 8, 2025. Across all open-market trades the lifetime net is −$16.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $20.7M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$20.70M
5
13
-$16.58M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| HUT | Director | 174,188 | $118.86 | $20.70M | $0 | 6 | 2025-08-08 |
| MICROTUNE INC (TUNE) Delisted | Director | 97,229 | $19.92 | $1.94M | $0 | 4 | 2010-06-03 |
| BigBand Networks, Inc. (BBND) Delisted | 10%+ Owner | 8,963,169 | — | — | -$523.2K | 1 | 2009-11-20 |
| VIRTUSA CORP (VRTU) Delisted | 10%+ Owner | 2,184,611 | — | — | -$16.06M | 1 | 2009-05-20 |
| TRANSMETA CORP (TMTA) Delisted | Director | — | — | — | $0 | 1 | 2007-08-03 |
Recent Filings
13 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-08-08 | HUT | Grant (A) | — | $0 | EDGAR |
| 2025-06-23 | HUT | Exer (M) | +18,698 | $0 | EDGAR |
| 2024-08-13 | HUT | Grant (A) | — | $0 | EDGAR |
| 2024-06-25 | HUT | Exer (M) | +17,633 | $0 | EDGAR |
| 2024-03-28 | HUT | Grant (A) | — | $0 | EDGAR |
| 2024-01-03 | HUT | Grant (A) | — | $0 | EDGAR |
| 2010-06-03 | MICROTUNE INC (TUNE) Delisted | Exer (M) | +2,800 | $0 | EDGAR |
| 2009-11-20 | BigBand Networks, Inc. (BBND) Delisted | Sell (S) | −140,000 | -$523.2K | EDGAR |
| 2009-05-20 | VIRTUSA CORP (VRTU) Delisted | Sell (S) | −2,358,000 | -$16.06M | EDGAR |
| 2009-04-28 | MICROTUNE INC (TUNE) Delisted | Grant (A) | — | $0 | EDGAR |