KLIC

Kulicke & Soffa Industries INC

Insider trading activity for Kulicke & Soffa Industries INC, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

-$11.3M

net selling

Bought(0 · 0 insiders): $0
Sold(5 · 5 insiders): $11.3M

Past 12 months

-$18.4M

net selling

Bought(0 · 0 insiders): $0
Sold(14 · 7 insiders): $18.4M

Transaction history

The 80 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Sep 1	Wong Lester A	CFO	AGRANT	6,038	—	—	+11.9%	Open the original filing on SEC.gov
Sep 1	Talluri Rajendra K	CEO	AGRANT	89,697	—	—	—	Open the original filing on SEC.gov
Jul 6	Yeo Mui Sung	Director	AGRANT	407	—	—	+0.7%	Open the original filing on SEC.gov
Jul 6	Kong Peter T M	Director	AGRANT	407	—	—	+0.4%	Open the original filing on SEC.gov
Jul 6	Olson Jon A	Director	AGRANT	407	—	—	+1.9%	Open the original filing on SEC.gov
Jul 6	Richardson David Jeffrey	Director	AGRANT	407	—	—	+26.2%	Open the original filing on SEC.gov
Jul 6	Milzcik Gregory F	Director	AGRANT	407	—	—	+0.5%	Open the original filing on SEC.gov
Jul 6	Dignam Denise	Director	AGRANT	407	—	—	+3.6%	Open the original filing on SEC.gov
Jun 18	Wong Lester A	Interim CEO and CFO	SSELL	60,000	$121.71	$7.3M	-54.2%	Open the original filing on SEC.gov
Jun 12	Wong Nelson Munpun	Senior Vice President	SSELL	15,000	$113.72	$1.7M	-17.4%	Open the original filing on SEC.gov
Jun 11	Kong Peter T M	Director	SSELL	1,551	$110.00	$170.6K	-1.5%	Open the original filing on SEC.gov
May 20	Yeo Mui Sung	Director	SSELL	20,000	$100.00	$2M	-25.3%	Open the original filing on SEC.gov
May 11	Lim Zi Yao	General Counsel	SSELL	1,500	$102.98	$154.5K	-6.6%	Open the original filing on SEC.gov
Apr 6	Yeo Mui Sung	Director	AGRANT	675	—	—	+0.9%	Open the original filing on SEC.gov
Apr 6	Kong Peter T M	Director	AGRANT	675	—	—	+0.7%	Open the original filing on SEC.gov
Apr 6	Olson Jon A	Director	AGRANT	675	—	—	+3.3%	Open the original filing on SEC.gov
Apr 6	Richardson David Jeffrey	Director	AGRANT	675	—	—	+77.0%	Open the original filing on SEC.gov
Apr 6	Milzcik Gregory F	Director	AGRANT	675	—	—	+0.9%	Open the original filing on SEC.gov
Apr 6	Dignam Denise	Director	AGRANT	675	—	—	+6.4%	Open the original filing on SEC.gov
Feb 25	Richardson David Jeffrey	Director	SSELL	9,364	$72.20	$676K	-34.6%	Open the original filing on SEC.gov
Feb 13	Yeo Mui Sung	Director	SSELL	19,143	$71.98	$1.4M	-19.6%	Open the original filing on SEC.gov
Feb 10	Chylak Robert Nestor	Senior Vice President	SSELL	7,098	$73.28	$520.1K	-23.6%	Open the original filing on SEC.gov
Feb 9	Lim Zi Yao	General Counsel	SSELL	1,000	$71.54	$71.5K	-4.2%	Open the original filing on SEC.gov
Feb 5	Wong Nelson Munpun	Senior Vice President	SSELL◷	39,800	$60.98	$2.4M	-31.5%	Open the original filing on SEC.gov
Jan 22	Wong Nelson Munpun	Senior Vice President	SSELL◷	200	$60.00	$12K	-0.2%	Open the original filing on SEC.gov
Jan 12	Wong Nelson Munpun	Senior Vice President	SSELL◷	30,000	$56.53	$1.7M	-19.2%	Open the original filing on SEC.gov
Jan 5	Yeo Mui Sung	Director	AGRANT	876	—	—	+0.9%	Open the original filing on SEC.gov
Jan 5	Kong Peter T M	Director	AGRANT	876	—	—	+0.9%	Open the original filing on SEC.gov
Jan 5	Olson Jon A	Director	AGRANT	876	—	—	+4.4%	Open the original filing on SEC.gov
Jan 5	Richardson David Jeffrey	Director	AGRANT	876	—	—	—	Open the original filing on SEC.gov
Jan 5	Milzcik Gregory F	Director	AGRANT	876	—	—	+1.1%	Open the original filing on SEC.gov
Jan 5	Dignam Denise	Director	AGRANT	876	—	—	+9.1%	Open the original filing on SEC.gov
Dec 18, 2025	Richardson David Jeffrey	Director	GGIFT	5,665	—	—	+26.5%	Open the original filing on SEC.gov
Dec 18, 2025	Richardson David Jeffrey	Director	GGIFT	5,665	—	—	-100.0%	Open the original filing on SEC.gov
Dec 8, 2025	Wong Nelson Munpun	Senior Vice President	SSELL	5,004	$50.07	$250.5K	-3.1%	Open the original filing on SEC.gov
Dec 2, 2025	Lim Zi Yao	General Counsel	SSELL	1,000	$45.00	$45K	-4.0%	Open the original filing on SEC.gov
Dec 1, 2025	Wong Lester A	Interim CEO and CFO	AGRANT	10,338	—	—	+10.3%	Open the original filing on SEC.gov
Dec 1, 2025	Kong Peter T M	Director	AGRANT	1,339	—	—	+1.4%	Open the original filing on SEC.gov
Nov 20, 2025	Wong Nelson Munpun	Senior Vice President	MEXER◆	166	—	—	—	Open the original filing on SEC.gov
Nov 20, 2025	Wong Nelson Munpun	Senior Vice President	MEXER	166	—	—	+0.1%	Open the original filing on SEC.gov
Nov 20, 2025	Wong Lester A	Interim CEO and CFO	MEXER◆	356	—	—	—	Open the original filing on SEC.gov
Nov 20, 2025	Wong Lester A	Interim CEO and CFO	MEXER	356	—	—	+0.4%	Open the original filing on SEC.gov
Nov 20, 2025	Chylak Robert Nestor	Senior Vice President	MEXER◆	142	—	—	—	Open the original filing on SEC.gov
Nov 20, 2025	Chylak Robert Nestor	Senior Vice President	FTAX	41	$39.03	$1.6K	-0.1%	Open the original filing on SEC.gov
Nov 20, 2025	Chylak Robert Nestor	Senior Vice President	MEXER	142	—	—	+0.5%	Open the original filing on SEC.gov
Nov 20, 2025	Chong Chan Pin	Executive Vice President	MEXER◆	174	—	—	—	Open the original filing on SEC.gov
Nov 20, 2025	Chong Chan Pin	Executive Vice President	MEXER	174	—	—	+0.3%	Open the original filing on SEC.gov
Nov 20, 2025	Chen Fusen Ernie	Director	MEXER◆	1,920	—	—	—	Open the original filing on SEC.gov
Nov 20, 2025	Chen Fusen Ernie	Director	MEXER	1,920	—	—	+0.2%	Open the original filing on SEC.gov
Oct 16, 2025	Chylak Robert Nestor	Senior Vice President	FTAX	674	$39.74	$26.8K	-2.2%	Open the original filing on SEC.gov
Oct 14, 2025	Wong Nelson Munpun	Senior Vice President	MEXER◆	5,115	—	—	—	Open the original filing on SEC.gov
Oct 14, 2025	Wong Nelson Munpun	Senior Vice President	MEXER	5,115	—	—	+3.3%	Open the original filing on SEC.gov
Oct 14, 2025	Wong Lester A	Chief Financial Officer	MEXER◆	10,951	—	—	—	Open the original filing on SEC.gov
Oct 14, 2025	Wong Lester A	Chief Financial Officer	MEXER	10,951	—	—	+12.3%	Open the original filing on SEC.gov
Oct 14, 2025	Chylak Robert Nestor	Senior Vice President	MEXER◆	4,368	—	—	—	Open the original filing on SEC.gov
Oct 14, 2025	Chylak Robert Nestor	Senior Vice President	FTAX	1,245	$40.05	$49.9K	-3.9%	Open the original filing on SEC.gov
Oct 14, 2025	Chylak Robert Nestor	Senior Vice President	FTAX	675	$40.05	$27K	-2.1%	Open the original filing on SEC.gov
Oct 14, 2025	Chylak Robert Nestor	Senior Vice President	MEXER	4,368	—	—	+15.5%	Open the original filing on SEC.gov
Oct 14, 2025	Chong Chan Pin	Executive Vice President	MEXER◆	5,375	—	—	—	Open the original filing on SEC.gov
Oct 14, 2025	Chong Chan Pin	Executive Vice President	MEXER	5,375	—	—	+11.5%	Open the original filing on SEC.gov
Oct 14, 2025	Chen Fusen Ernie	President and CEO	MEXER◆	59,040	—	—	—	Open the original filing on SEC.gov
Oct 14, 2025	Chen Fusen Ernie	President and CEO	MEXER	59,040	—	—	+5.4%	Open the original filing on SEC.gov
Oct 13, 2025	Lim Zi Yao	General Counsel	AGRANT	7,597	—	—	+44.4%	Open the original filing on SEC.gov
Oct 13, 2025	Wong Nelson Munpun	Senior Vice President	AGRANT	8,559	—	—	+5.8%	Open the original filing on SEC.gov
Oct 13, 2025	Wong Lester A	Chief Financial Officer	AGRANT	9,462	—	—	+11.9%	Open the original filing on SEC.gov
Oct 13, 2025	Chylak Robert Nestor	Senior Vice President	AGRANT	7,982	—	—	+39.5%	Open the original filing on SEC.gov
Oct 11, 2025	Chylak Robert Nestor	Senior Vice President	FTAX	610	$38.18	$23.3K	-2.9%	Open the original filing on SEC.gov
Oct 6, 2025	Yeo Mui Sung	Director	AGRANT	1,081	—	—	+1.1%	Open the original filing on SEC.gov
Oct 6, 2025	Kong Peter T M	Director	AGRANT	1,081	—	—	+1.1%	Open the original filing on SEC.gov
Oct 6, 2025	Olson Jon A	Director	AGRANT	1,081	—	—	+5.8%	Open the original filing on SEC.gov
Oct 6, 2025	Richardson David Jeffrey	Director	AGRANT	1,081	—	—	+23.6%	Open the original filing on SEC.gov
Oct 6, 2025	Milzcik Gregory F	Director	AGRANT	1,081	—	—	+1.4%	Open the original filing on SEC.gov
Oct 6, 2025	Dignam Denise	Director	AGRANT	1,081	—	—	+12.6%	Open the original filing on SEC.gov
Aug 12, 2025	Wong Nelson Munpun	Senior Vice President	SSELL	30,000	$37.07	$1.1M	-16.9%	Open the original filing on SEC.gov
Jul 1, 2025	Yeo Mui Sung	Director	AGRANT	1,260	—	—	+1.3%	Open the original filing on SEC.gov
Jul 1, 2025	Kong Peter T M	Director	AGRANT	1,260	—	—	+1.3%	Open the original filing on SEC.gov
Jul 1, 2025	Olson Jon A	Director	AGRANT	1,260	—	—	+7.2%	Open the original filing on SEC.gov
Jul 1, 2025	Richardson David Jeffrey	Director	AGRANT	1,260	—	—	+37.9%	Open the original filing on SEC.gov
Jul 1, 2025	Milzcik Gregory F	Director	AGRANT	1,260	—	—	+1.7%	Open the original filing on SEC.gov
Jul 1, 2025	Dignam Denise	Director	AGRANT	1,260	—	—	+17.2%	Open the original filing on SEC.gov

AGRANT—

Wong Lester A · CFOSep 1

6,038 sh · +11.9% own

AGRANT—

Talluri Rajendra K · CEOSep 1

89,697 sh

AGRANT—

Yeo Mui Sung · DirectorJul 6

407 sh · +0.7% own

AGRANT—

Kong Peter T M · DirectorJul 6

407 sh · +0.4% own

AGRANT—

Olson Jon A · DirectorJul 6

407 sh · +1.9% own

AGRANT—

Richardson David Jeffrey · DirectorJul 6

407 sh · +26.2% own

AGRANT—

Milzcik Gregory F · DirectorJul 6

407 sh · +0.5% own

AGRANT—

Dignam Denise · DirectorJul 6

407 sh · +3.6% own

SSELL$7.3M

Wong Lester A · Interim CEO and…Jun 18

60,000 sh @ $121.71 · -54.2% own

SSELL$1.7M

Wong Nelson Munpun · Senior Vice…Jun 12

15,000 sh @ $113.72 · -17.4% own

SSELL$170.6K

Kong Peter T M · DirectorJun 11

1,551 sh @ $110.00 · -1.5% own

SSELL$2M

Yeo Mui Sung · DirectorMay 20

20,000 sh @ $100.00 · -25.3% own

SSELL$154.5K

Lim Zi Yao · General CounselMay 11

1,500 sh @ $102.98 · -6.6% own

AGRANT—

Yeo Mui Sung · DirectorApr 6

675 sh · +0.9% own

AGRANT—

Kong Peter T M · DirectorApr 6

675 sh · +0.7% own

AGRANT—

Olson Jon A · DirectorApr 6

675 sh · +3.3% own

AGRANT—

Richardson David Jeffrey · DirectorApr 6

675 sh · +77.0% own

AGRANT—

Milzcik Gregory F · DirectorApr 6

675 sh · +0.9% own

AGRANT—

Dignam Denise · DirectorApr 6

675 sh · +6.4% own

SSELL$676K

Richardson David Jeffrey · DirectorFeb 25

9,364 sh @ $72.20 · -34.6% own

SSELL$1.4M

Yeo Mui Sung · DirectorFeb 13

19,143 sh @ $71.98 · -19.6% own

SSELL$520.1K

Chylak Robert Nestor · Senior Vice…Feb 10

7,098 sh @ $73.28 · -23.6% own

SSELL$71.5K

Lim Zi Yao · General CounselFeb 9

1,000 sh @ $71.54 · -4.2% own

SSELL◷$2.4M

Wong Nelson Munpun · Senior Vice…Feb 5

39,800 sh @ $60.98 · -31.5% own

SSELL◷$12K

Wong Nelson Munpun · Senior Vice…Jan 22

200 sh @ $60.00 · -0.2% own

SSELL◷$1.7M

Wong Nelson Munpun · Senior Vice…Jan 12

30,000 sh @ $56.53 · -19.2% own

AGRANT—

Yeo Mui Sung · DirectorJan 5

876 sh · +0.9% own

AGRANT—

Kong Peter T M · DirectorJan 5

876 sh · +0.9% own

AGRANT—

Olson Jon A · DirectorJan 5

876 sh · +4.4% own

AGRANT—

Richardson David Jeffrey · DirectorJan 5

876 sh

AGRANT—

Milzcik Gregory F · DirectorJan 5

876 sh · +1.1% own

AGRANT—

Dignam Denise · DirectorJan 5

876 sh · +9.1% own

GGIFT—

Richardson David Jeffrey · DirectorDec 18, 2025

5,665 sh · +26.5% own

GGIFT—

Richardson David Jeffrey · DirectorDec 18, 2025

5,665 sh · -100.0% own

SSELL$250.5K

Wong Nelson Munpun · Senior Vice…Dec 8, 2025

5,004 sh @ $50.07 · -3.1% own

SSELL$45K

Lim Zi Yao · General CounselDec 2, 2025

1,000 sh @ $45.00 · -4.0% own

AGRANT—

Wong Lester A · Interim CEO and…Dec 1, 2025

10,338 sh · +10.3% own

AGRANT—

Kong Peter T M · DirectorDec 1, 2025

1,339 sh · +1.4% own

MEXER◆—

Wong Nelson Munpun · Senior Vice…Nov 20, 2025

166 sh

MEXER—

Wong Nelson Munpun · Senior Vice…Nov 20, 2025

166 sh · +0.1% own

MEXER◆—

Wong Lester A · Interim CEO and…Nov 20, 2025

356 sh

MEXER—

Wong Lester A · Interim CEO and…Nov 20, 2025

356 sh · +0.4% own

MEXER◆—

Chylak Robert Nestor · Senior Vice…Nov 20, 2025

142 sh

FTAX$1.6K

Chylak Robert Nestor · Senior Vice…Nov 20, 2025

41 sh @ $39.03 · -0.1% own

MEXER—

Chylak Robert Nestor · Senior Vice…Nov 20, 2025

142 sh · +0.5% own

MEXER◆—

Chong Chan Pin · Executive Vice…Nov 20, 2025

174 sh

MEXER—

Chong Chan Pin · Executive Vice…Nov 20, 2025

174 sh · +0.3% own

MEXER◆—

Chen Fusen Ernie · DirectorNov 20, 2025

1,920 sh

MEXER—

Chen Fusen Ernie · DirectorNov 20, 2025

1,920 sh · +0.2% own

FTAX$26.8K

Chylak Robert Nestor · Senior Vice…Oct 16, 2025

674 sh @ $39.74 · -2.2% own

MEXER◆—

Wong Nelson Munpun · Senior Vice…Oct 14, 2025

5,115 sh

MEXER—

Wong Nelson Munpun · Senior Vice…Oct 14, 2025

5,115 sh · +3.3% own

MEXER◆—

Wong Lester A · Chief Financial…Oct 14, 2025

10,951 sh

MEXER—

Wong Lester A · Chief Financial…Oct 14, 2025

10,951 sh · +12.3% own

MEXER◆—

Chylak Robert Nestor · Senior Vice…Oct 14, 2025

4,368 sh

FTAX$49.9K

Chylak Robert Nestor · Senior Vice…Oct 14, 2025

1,245 sh @ $40.05 · -3.9% own

FTAX$27K

Chylak Robert Nestor · Senior Vice…Oct 14, 2025

675 sh @ $40.05 · -2.1% own

MEXER—

Chylak Robert Nestor · Senior Vice…Oct 14, 2025

4,368 sh · +15.5% own

MEXER◆—

Chong Chan Pin · Executive Vice…Oct 14, 2025

5,375 sh

MEXER—

Chong Chan Pin · Executive Vice…Oct 14, 2025

5,375 sh · +11.5% own

MEXER◆—

Chen Fusen Ernie · President and CEOOct 14, 2025

59,040 sh

MEXER—

Chen Fusen Ernie · President and CEOOct 14, 2025

59,040 sh · +5.4% own

AGRANT—

Lim Zi Yao · General CounselOct 13, 2025

7,597 sh · +44.4% own

AGRANT—

Wong Nelson Munpun · Senior Vice…Oct 13, 2025

8,559 sh · +5.8% own

AGRANT—

Wong Lester A · Chief Financial…Oct 13, 2025

9,462 sh · +11.9% own

AGRANT—

Chylak Robert Nestor · Senior Vice…Oct 13, 2025

7,982 sh · +39.5% own

FTAX$23.3K

Chylak Robert Nestor · Senior Vice…Oct 11, 2025

610 sh @ $38.18 · -2.9% own

AGRANT—

Yeo Mui Sung · DirectorOct 6, 2025

1,081 sh · +1.1% own

AGRANT—

Kong Peter T M · DirectorOct 6, 2025

1,081 sh · +1.1% own

AGRANT—

Olson Jon A · DirectorOct 6, 2025

1,081 sh · +5.8% own

AGRANT—

Richardson David Jeffrey · DirectorOct 6, 2025

1,081 sh · +23.6% own

AGRANT—

Milzcik Gregory F · DirectorOct 6, 2025

1,081 sh · +1.4% own

AGRANT—

Dignam Denise · DirectorOct 6, 2025

1,081 sh · +12.6% own

SSELL$1.1M

Wong Nelson Munpun · Senior Vice…Aug 12, 2025

30,000 sh @ $37.07 · -16.9% own

AGRANT—

Yeo Mui Sung · DirectorJul 1, 2025

1,260 sh · +1.3% own

AGRANT—

Kong Peter T M · DirectorJul 1, 2025

1,260 sh · +1.3% own

AGRANT—

Olson Jon A · DirectorJul 1, 2025

1,260 sh · +7.2% own

AGRANT—

Richardson David Jeffrey · DirectorJul 1, 2025

1,260 sh · +37.9% own

AGRANT—

Milzcik Gregory F · DirectorJul 1, 2025

1,260 sh · +1.7% own

AGRANT—

Dignam Denise · DirectorJul 1, 2025

1,260 sh · +17.2% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 63 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.