Insider Buy/Sell Details for the Semiconductors Industry — May 2026
Ratio0.1:1
Daily Buy & Sell Volume
Transactions (642)
MONOLITHIC POWER SYSTEMS INC (MPWR)
Sciammas Maurice — EVP, WW Sales & Marketing
Shares
1,717
Price
$1,557.48
Total Value
$2.67M
Shares Held After
173,186
% of Holdings
1.0%
MONOLITHIC POWER SYSTEMS INC (MPWR)
Sciammas Maurice — EVP, WW Sales & Marketing
Shares
3,741
Price
$1,550.36
Total Value
$5.80M
Shares Held After
174,903
% of Holdings
2.1%
ARM HOLDINGS PLC /UK (ARM)
Abbey William — Chief Commercial Officer
Shares
7,000
Price
$212.55
Total Value
$1.49M
Shares Held After
57,394
% of Holdings
10.9%
MICROCHIP TECHNOLOGY INC (MCHP)
Simoncic Richard J — CHIEF OPERATING OFFICER
Shares
83
Price
$93.85
Total Value
$7.79K
Shares Held After
140,261
% of Holdings
0.1%
DIODES INC /DEL/ (DIOD)
Yang Emily — SVP Worldwide Sales/Marketing
Shares
2,000
Price
$101.47
Total Value
$202.93K
Shares Held After
68,878
% of Holdings
2.8%
Ambiq Micro, Inc. (AMBQ)
Chen Sean Chihhsiang — President and COO
Shares
23,334
Price
$71.37
Total Value
$1.67M
Shares Held After
120,275
% of Holdings
16.2%
Ambiq Micro, Inc. (AMBQ)
Chen Sean Chihhsiang — President and COO
Shares
32,351
Price
$70.53
Total Value
$2.28M
Shares Held After
143,609
% of Holdings
18.4%
COHU INC (COHU)
BOHRSON CHRISTOPHER — Sr VP & Chief Customer Officer
Shares
1,000
Price
$46.92
Total Value
$46.92K
Shares Held After
172,702
% of Holdings
0.6%
ENTEGRIS INC (ENTG)
Rice Susan G. — SVP, Global Human Resources
Shares
12,960
Price
$132.75
Total Value
$1.72M
Shares Held After
69,038
% of Holdings
15.8%
ENTEGRIS INC (ENTG)
Rice Susan G. — SVP, Global Human Resources
Shares
6,933
Price
$133.01
Total Value
$922.16K
Shares Held After
69,038
% of Holdings
9.1%
Marvell Technology, Inc. (MRVL)
Meintjes Willem A — Chief Financial Officer
Shares
4,000
Price
$175.24
Total Value
$700.96K
Shares Held After
226,675
% of Holdings
1.7%
Arteris, Inc. (AIP)
Hawkins Nicholas B. — VP and Chief Financial Officer
Shares
3,191
Price
$34.59
Total Value
$110.36K
Shares Held After
110,600
% of Holdings
2.8%
Arteris, Inc. (AIP)
Hawkins Nicholas B. — VP and Chief Financial Officer
Shares
164,916
Price
$33.51
Total Value
$5.53M
Shares Held After
113,791
% of Holdings
59.2%
Arteris, Inc. (AIP)
Hawkins Nicholas B. — VP and Chief Financial Officer
Shares
52,928
Price
$32.97
Total Value
$1.75M
Shares Held After
278,707
% of Holdings
16.0%
EVERSPIN TECHNOLOGIES INC. (MRAM)
HAWK GLEN — Director
Shares
400
Price
$39.97
Total Value
$15.99K
Shares Held After
39,551
% of Holdings
1.0%
EVERSPIN TECHNOLOGIES INC. (MRAM)
HAWK GLEN — Director
Shares
9,418
Price
$39.13
Total Value
$368.53K
Shares Held After
39,951
% of Holdings
19.1%
EVERSPIN TECHNOLOGIES INC. (MRAM)
HAWK GLEN — Director
Shares
21,369
Price
$38.09
Total Value
$813.95K
Shares Held After
49,369
% of Holdings
30.2%
EVERSPIN TECHNOLOGIES INC. (MRAM)
HAWK GLEN — Director
Shares
17,376
Price
$37.10
Total Value
$644.65K
Shares Held After
70,738
% of Holdings
19.7%
FORMFACTOR INC (FORM)
STEVEN-WAISS KELLEY — Director
Shares
5,400
Price
$125.60
Total Value
$678.24K
Shares Held After
25,179
% of Holdings
17.7%
Ultra Clean Holdings, Inc. (UCTT)
McKibben Jeffrey L. — Chief Information Officer
Shares
4,205
Price
$87.00
Total Value
$365.83K
Shares Held After
11,349
% of Holdings
27.0%
MACOM Technology Solutions Holdings, Inc. (MTSI)
CHUNG PETER Y — Director
Shares
43,268
Price
$378.20
Total Value
$16.36M
Shares Held After
6,781
% of Holdings
86.5%
SITIME Corp (SITM)
MEGACHIPS CORP /FI — 10% Owner
Shares
400,000
Price
$779.50
Total Value
$311.80M
Shares Held After
3,020,000
% of Holdings
11.7%
Ambiq Micro, Inc. (AMBQ)
Winzeler Jeffrey G — Chief Financial Officer
Shares
82
Price
$70.65
Total Value
$5.79K
Shares Held After
94,395
% of Holdings
0.1%
Ambiq Micro, Inc. (AMBQ)
Winzeler Jeffrey G — Chief Financial Officer
Shares
25,918
Price
$69.90
Total Value
$1.81M
Shares Held After
94,477
% of Holdings
21.5%
Ambiq Micro, Inc. (AMBQ)
Esaka Fumihide — Director
Shares
60,000
Price
$70.02
Total Value
$4.20M
Shares Held After
391,189
% of Holdings
13.3%
Ambiq Micro, Inc. (AMBQ)
Hanson Scott McLean — Director
Shares
200
Price
$70.50
Total Value
$14.10K
Shares Held After
203,126
% of Holdings
0.1%
Ambiq Micro, Inc. (AMBQ)
Hanson Scott McLean — Director
Shares
6,100
Price
$69.59
Total Value
$424.52K
Shares Held After
203,326
% of Holdings
2.9%
Ambiq Micro, Inc. (AMBQ)
Hanson Scott McLean — Director
Shares
3,900
Price
$68.62
Total Value
$267.63K
Shares Held After
209,426
% of Holdings
1.8%
VEECO INSTRUMENTS INC (VECO)
DAMORE RICHARD A — Director
Shares
43,701
Price
$60.71
Total Value
$2.65M
Shares Held After
112,594
% of Holdings
28.0%
GLOBALFOUNDRIES Inc. (GFS)
Azar Samak L — Chief Legal Officer
Shares
500
Price
$74.82
Total Value
$37.41K
Shares Held After
15,494
% of Holdings
3.1%
ENTEGRIS INC (ENTG)
Colella Joseph — SVP and General Counsel
Shares
2,410
Price
$140.04
Total Value
$337.50K
Shares Held After
50,121
% of Holdings
4.6%
ENTEGRIS INC (ENTG)
Colella Joseph — SVP and General Counsel
Shares
3,916
Price
$140.25
Total Value
$549.22K
Shares Held After
50,121
% of Holdings
7.2%
ENTEGRIS INC (ENTG)
Haris Clinton M. — SVP & President, APS Division
Shares
5,830
Price
$144.57
Total Value
$842.84K
Shares Held After
54,961
% of Holdings
9.6%
ENTEGRIS INC (ENTG)
Blachier Olivier — SVP, Chief Strategy Officer
Shares
2,000
Price
$140.04
Total Value
$280.08K
Shares Held After
34,897
% of Holdings
5.4%
SEALSQ Corp (LAES)
Buonanno Franck Jean — Vice-President, Global Sales
Shares
20,000
Price
$2.90
Total Value
$58.00K
Shares Held After
10,000
% of Holdings
66.7%
ALLEGRO MICROSYSTEMS, INC. (ALGM)
Lynch Susan D — Director
Shares
16,711
Price
$45.46
Total Value
$759.63K
Shares Held After
12,805
% of Holdings
56.6%
AXCELIS TECHNOLOGIES INC (ACLS)
Blumenstock Gerald M — EVP, Research, Dev. & Eng.
Shares
1,015
Price
$162.31
Total Value
$164.75K
Shares Held After
17,293
% of Holdings
5.5%
AXCELIS TECHNOLOGIES INC (ACLS)
Sutton Todd — VP Corporate Controller
Shares
2,574
Price
$163.89
Total Value
$421.86K
Shares Held After
7,817
% of Holdings
24.8%
TEXAS INSTRUMENTS INC (TXN)
Lizardi Rafael R — Sr. Vice President & CFO
Shares
1,459
Price
$309.45
Total Value
$451.49K
Shares Held After
85,485
% of Holdings
1.7%
TEXAS INSTRUMENTS INC (TXN)
Lizardi Rafael R — Sr. Vice President & CFO
Shares
14,156
Price
$308.54
Total Value
$4.37M
Shares Held After
86,944
% of Holdings
14.0%
TEXAS INSTRUMENTS INC (TXN)
Lizardi Rafael R — Sr. Vice President & CFO
Shares
32,119
Price
$307.85
Total Value
$9.89M
Shares Held After
101,100
% of Holdings
24.1%
TEXAS INSTRUMENTS INC (TXN)
BAHAI AHMAD — Sr. Vice President
Shares
5,000
Price
$309.13
Total Value
$1.55M
Shares Held After
42,519
% of Holdings
10.5%
IPG PHOTONICS CORP (IPGP)
Desmond Jeanmarie F. — Director
Shares
1,690
Price
$105.58
Total Value
$178.43K
Shares Held After
10,486
% of Holdings
13.9%
GSI TECHNOLOGY INC (GSIT)
Schirle Douglas — CFO
Shares
40,000
Price
$11.32
Total Value
$452.93K
Shares Held After
69,046
% of Holdings
36.7%
Arteris, Inc. (AIP)
Viana Antonio J — Director
Shares
20,000
Price
$38.00
Total Value
$760.00K
Shares Held After
64,620
% of Holdings
23.6%
Guerrilla RF, Inc. (GUER)
Dunn James E. Jr. — Director
Shares
3,335
Price
$3.00
Total Value
$10.01K
Shares Held After
5,002
% of Holdings
66.7%
FORMFACTOR INC (FORM)
Titinger Jorge — Director
Shares
4,009
Price
$128.78
Total Value
$516.30K
Shares Held After
13,489
% of Holdings
22.9%
MICROCHIP TECHNOLOGY INC (MCHP)
Bunker Mathew B — SENIOR VP, OPERATIONS
Shares
10,571
Price
$96.88
Total Value
$1.02M
Shares Held After
14,587
% of Holdings
42.0%
MICROCHIP TECHNOLOGY INC (MCHP)
Simoncic Richard J — CHIEF OPERATING OFFICER
Shares
10,000
Price
$97.55
Total Value
$975.46K
Shares Held After
136,127
% of Holdings
6.8%
ADVANCED MICRO DEVICES INC (AMD)
Su Lisa T — Director
Shares
600
Price
$457.41
Total Value
$274.45K
Shares Held After
3,021,899
% of Holdings
0.0%
Showing 251–300 of 642 transactions (page 6 of 13)