Insider Ledger
KLIC insider buying and SEC filings, explained
Kulicke & Soffa Industries Inc. · CIK 56978
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Semiconductors & Related Devices
- State of incorporation
- PA
- Fiscal year end
- Oct 3
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$14.3M
Planned sales (10b5-1)
$4.1M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Jun 18, 2026 | Sale | Lester A Wong (CEO) sold 60,000 shares at about $121.71 ($7.3M). Holdings down 54% to 50,743 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 22, 2026 |
| Jun 12, 2026 | Sale | Nelson Munpun Wong (Senior Vice President) sold 15,000 shares at about $113.72 ($1.7M). Holdings down 17% to 71,369 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 15, 2026 |
| Jun 11, 2026 | Sale | Peter T M Kong (Director) sold 1,551 shares at $110.00 ($171K). Holdings down 2% to 100,009 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 12, 2026 |
| May 20, 2026 | Sale | Mui Sung Yeo (Director) sold 20,000 shares at $100.00 ($2.0M). Holdings down 25% to 59,197 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 21, 2026 |
| May 11, 2026 | Sale | Zi Yao Lim (General Counsel) sold 1,500 shares at about $102.98 ($154K). Holdings down 7% to 21,214 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 12, 2026 |
| Feb 25, 2026 | Sale | David Jeffrey Richardson (Director) sold 9,364 shares indirectly (by trust) at about $72.20 ($676K). Holdings by trust down 35% to 17,694 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 27, 2026 |
| Feb 13, 2026 | Sale | Mui Sung Yeo (Director) sold 19,143 shares at about $71.98 ($1.4M). Holdings down 20% to 78,522 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 17, 2026 |
| Feb 10, 2026 | Sale | Robert Nestor Chylak (Senior Vice President) sold 7,098 shares at $73.28 ($520K). Holdings down 24% to 22,987 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 11, 2026 |
| Feb 9, 2026 | Sale | Zi Yao Lim (General Counsel) sold 1,000 shares at $71.54 ($72K). Holdings down 4% to 22,714 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 11, 2026 |
| Feb 5, 2026 | Planned (10b5-1) | Nelson Munpun Wong (Senior Vice President) sold 39,800 shares at about $60.98 ($2.4M), marked as a 10b5-1 plan trade. Holdings down 32% to 86,369 shares. | SEC filing Filed Feb 9, 2026 |
| Jan 22, 2026 | Planned (10b5-1) | Nelson Munpun Wong (Senior Vice President) sold 200 shares at $60.00 ($12K), marked as a 10b5-1 plan trade. Holdings down <1% to 126,169 shares. | SEC filing Filed Jan 26, 2026 |
| Jan 12, 2026 | Planned (10b5-1) | Nelson Munpun Wong (Senior Vice President) sold 30,000 shares at about $56.53 ($1.7M), marked as a 10b5-1 plan trade. Holdings down 19% to 126,369 shares. | SEC filing Filed Jan 14, 2026 |
| Dec 8, 2025 | Sale | Nelson Munpun Wong (Senior Vice President) sold 5,004 shares at about $50.07 ($251K). Holdings down 3% to 156,369 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 10, 2025 |
| Dec 2, 2025 | Sale | Zi Yao Lim (General Counsel) sold 1,000 shares at $45.00 ($45K). Holdings down 4% to 23,714 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 3, 2025 |
44 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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