Littelfuse, Inc.
US ˙ NasdaqGS ˙ US5370081045

SecurityLFUS / Littelfuse, Inc.
InsiderT J Chung
This page shows the track record and history of CHUNG T J insider trades in Littelfuse, Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by T J Chung in LFUS / Littelfuse, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Max		 Price at
Max		 Max
Profit ($)		 Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

LFUS / Littelfuse, Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by T J Chung in LFUS / Littelfuse, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Min		 Price at
Min		 Max Loss
Avoided ($)		 Max Loss
Avoided (%)
2025-08-11 679 245.2400 679 245.2400 166,518 0 245.4100 116 0.07
2025-08-11 1,664 246.4600 1,664 246.4600 410,109
2023-05-08 1,550 259.1600 1,550 259.1600 401,698
2023-05-08 200 259.7000 200 259.7000 51,940
2021-11-08 482 319.9000 482 319.9000 154,192
2021-11-08 2,945 319.4000 2,945 319.4000 940,633
2021-11-04 1,231 313.4400 1,231 313.4400 385,845
2018-08-08 1,200 227.4100 1,200 227.4100 272,892
2018-02-16 3,596 207.5400 3,596 207.5400 746,314
2018-02-16 435 208.3100 435 208.3100 90,615
2018-02-16 823 208.4500 823 208.4500 171,554
2017-02-09 549 164.3200 549 164.3200 90,212
2017-02-09 1,543 164.4100 1,543 164.4100 253,685
2016-11-25 2,862 150.0000 2,862 150.0000 429,300
2016-02-08 1,724 107.0600 1,724 107.0600 184,571

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

LFUS / Littelfuse, Inc. Insider Trades
Insider Transaction History
File
Date		 Trade
Date		 Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price		 Unit
Price		 Units
Changed		 Value
Changed (1K)		 Remaining
Options		 Remaining
Shares
2025-09-08 2025-09-05 4 CHUNG T J LFUS Common Stock A - Award D 259.5800 3 1 18,758
2025-09-08 2025-09-05 4 CHUNG T J LFUS Common Stock A - Award D 259.5800 25 6 18,755
2025-08-13 2025-08-11 4 CHUNG T J LFUS Common Stock S - Sale D 246.4600 -1,664 -410 18,730
2025-08-13 2025-08-11 4 CHUNG T J LFUS Common Stock S - Sale D 245.2400 -679 -167 20,394
2025-08-13 2025-08-11 4 CHUNG T J LFUS Common Stock M - Exercise D 132.0800 1,432 189 21,073
2025-08-13 2025-08-11 4 CHUNG T J LFUS Common Stock M - Exercise D 199.2400 911 182 19,641
2025-06-09 2025-06-05 4 CHUNG T J LFUS Common Stock A - Award D 214.1800 27 6 18,730
2025-06-09 2025-06-05 4 CHUNG T J LFUS Common Stock A - Award D 214.1800 3 1 18,703
2025-04-28 2025-04-24 4 CHUNG T J LFUS Common Stock A - Award D 1,019 18,700
2025-03-10 2025-03-07 4 CHUNG T J LFUS Common Stock J - Other D 218.3300 20 4 17,681
2024-12-09 2024-12-06 4 CHUNG T J LFUS Common Stock J - Other D 247.3200 25 6 17,661
2024-09-09 2024-09-06 4 CHUNG T J LFUS Common Stock J - Other D 256.0000 22 6 17,636
2024-06-10 2024-06-07 4 CHUNG T J LFUS Common Stock J - Other D 250.1300 14 4 17,614
2024-04-29 2024-04-25 4 CHUNG T J LFUS Common Stock A - Award D 522 17,600
2024-03-11 2024-03-08 4 CHUNG T J LFUS Common Stock J - Other D 244.9000 24 6 17,078
2023-12-11 2023-12-08 4 CHUNG T J LFUS Common Stock J - Other D 243.0400 23 6 17,054
2023-09-11 2023-09-08 4 CHUNG T J LFUS Common Stock J - Other D 259.4900 22 6 17,031
2023-06-12 2023-06-09 4 CHUNG T J LFUS Common Stock J - Other D 271.0900 18 5 17,009
2023-05-09 2023-05-08 4 CHUNG T J LFUS Common Stock S - Sale D 259.7000 -200 -52 16,991
2023-05-09 2023-05-08 4 CHUNG T J LFUS Common Stock S - Sale D 259.1600 -1,550 -402 17,191
2023-05-01 2023-04-27 4 CHUNG T J LFUS Common Stock A - Award D 468 18,741
2023-03-14 2023-03-10 4 CHUNG T J LFUS Common Stock J - Other D 264.3000 13 3 18,273
2022-12-13 2022-12-12 4 CHUNG T J LFUS Common Stock J - Other D 235.3600 22 5 18,260
2022-09-13 2022-09-12 4 CHUNG T J LFUS Common Stock J - Other D 233.0000 22 5 18,238
2022-06-14 2022-06-13 4 CHUNG T J LFUS Common Stock J - Other D 256.0200 16 4 18,216
2022-05-02 2022-04-28 4 CHUNG T J LFUS Stock Option (right to buy) A - Award D 231.64 815 815
2022-05-02 2022-04-28 4 CHUNG T J LFUS Common Stock A - Award D 498 18,200
2022-03-14 2022-03-11 4 CHUNG T J LFUS Common Stock J - Other D 248.2700 10 2 17,702
2021-12-06 2021-12-03 4 CHUNG T J LFUS Common Stock J - Other D 310.7400 14 4 17,692
2021-11-09 2021-11-08 4 CHUNG T J LFUS Stock Option (right to buy) M - Exercise D 192.59 -800 0
2021-11-09 2021-11-08 4 CHUNG T J LFUS Stock Option (right to buy) M - Exercise D 154.15 -945 0
2021-11-09 2021-11-08 4 CHUNG T J LFUS Stock Option (right to buy) M - Exercise D 120.15 -1,200 0
2021-11-09 2021-11-08 4 CHUNG T J LFUS Stock Option (right to buy) M - Exercise D 96.15 -482 0
2021-11-09 2021-11-08 4 CHUNG T J LFUS Common Stock S - Sale D 319.4000 -2,945 -941 17,678
2021-11-09 2021-11-08 4 CHUNG T J LFUS Common Stock S - Sale D 319.9000 -482 -154 20,623
2021-11-09 2021-11-08 4 CHUNG T J LFUS Common Stock M - Exercise D 192.5900 800 154 21,105
2021-11-09 2021-11-08 4 CHUNG T J LFUS Common Stock M - Exercise D 154.1500 945 146 20,305
2021-11-09 2021-11-08 4 CHUNG T J LFUS Common Stock M - Exercise D 120.1500 1,200 144 19,360
2021-11-09 2021-11-08 4 CHUNG T J LFUS Common Stock M - Exercise D 96.1500 482 46 18,160
2021-11-08 2021-11-04 4 CHUNG T J LFUS Common Stock S - Sale D 313.4400 -1,231 -386 17,678
2021-09-07 2021-09-03 4 CHUNG T J LFUS Common Stock J - Other D 282.1600 16 5 18,909
2021-06-07 2021-06-07 4 CHUNG T J LFUS Common Stock J - Other D 257.7600 14 4 18,893
2021-04-26 2021-04-22 4 CHUNG T J LFUS Stock Option (right to buy) A - Award D 267.84 574 574
2021-04-26 2021-04-22 4 CHUNG T J LFUS Common Stock A - Award D 396 18,879
2021-03-08 2021-03-08 4 CHUNG T J LFUS Common Stock J - Other D 259.1800 9 2 18,483
2020-12-08 2020-12-04 4 CHUNG T J LFUS Common Stock J - Other D 249.3100 17 4 18,474
2020-09-08 2020-09-04 4 CHUNG T J LFUS Common Stock L - Other D 180.0300 22 4 18,457
2020-06-08 2020-06-08 4 CHUNG T J LFUS Common Stock L - Other D 179.9100 22 4 18,435
2020-04-27 2020-04-23 4 CHUNG T J LFUS Stock Option (right to buy) A - Award D 132.08 1,432 1,432
2020-04-27 2020-04-23 4 CHUNG T J LFUS Common Stock A - Award D 807 18,413
2020-03-09 2020-03-06 4 CHUNG T J LFUS Common Stock L - Other D 155.5000 17 3 17,606
2019-12-10 2019-12-09 4 CHUNG T J LFUS Common Stock L - Other D 183.9100 22 4 17,589
2019-09-09 2019-09-09 4 CHUNG T J LFUS Common Stock L - Other D 168.1600 23 4 17,567
2019-06-10 2019-06-10 4 CHUNG T J LFUS Common Stock L - Other D 176.0000 20 4 17,544
2019-04-30 2019-04-26 4 CHUNG T J LFUS Stock Option (right to buy) A - Award D 199.24 911 911
2019-04-30 2019-04-26 4 CHUNG T J LFUS Common Stock A - Award D 536 17,524
2019-03-11 2019-03-11 4 CHUNG T J LFUS Common Stock L - Other D 190.6700 13 2 16,988
2018-12-07 2018-12-07 4 CHUNG T J LFUS Common Stock L - Other D 177.3800 20 4 16,975
2018-09-07 2018-09-07 4 CHUNG T J LFUS Common Stock L - Other D 220.7500 15 3 16,955
2018-08-09 2018-08-08 4 CHUNG T J LFUS Common Stock S - Sale D 227.4100 -1,200 -273 16,940
2018-06-11 2018-06-08 4 CHUNG T J LFUS Common Stock L - Other D 225.5300 12 3 18,140
2018-05-01 2018-04-27 4 CHUNG T J LFUS Stock Option (right to buy) A - Award D 192.59 800 800
2018-05-01 2018-04-27 4 CHUNG T J LFUS Common Stock A - Award D 468 18,128
2018-03-13 2018-03-13 4 CHUNG T J LFUS Common Stock L - Other D 224.8000 6 1 17,660
2018-02-20 2018-02-16 4 CHUNG T J LFUS Stock Option (right to buy) M - Exercise D 96.15 -965 482
2018-02-20 2018-02-16 4 CHUNG T J LFUS Stock Option (right to buy) M - Exercise D 94.84 -1,350 0
2018-02-20 2018-02-16 4 CHUNG T J LFUS Stock Option (right to buy) M - Exercise D 66.68 -1,716 0
2018-02-20 2018-02-16 4 CHUNG T J LFUS Common Stock S - Sale D 208.4500 -823 -172 17,654
2018-02-20 2018-02-16 4 CHUNG T J LFUS Common Stock S - Sale D 208.3100 -435 -91 18,477
2018-02-20 2018-02-16 4 CHUNG T J LFUS Common Stock S - Sale D 207.5400 -3,596 -746 18,912
2018-02-20 2018-02-16 4 CHUNG T J LFUS Common Stock M - Exercise D 96.1500 965 93 22,508
2018-02-20 2018-02-16 4 CHUNG T J LFUS Common Stock M - Exercise D 94.8400 1,350 128 21,543
2018-02-20 2018-02-16 4 CHUNG T J LFUS Common Stock M - Exercise D 66.6800 1,716 114 20,193
2017-12-08 2017-12-08 4 CHUNG T J LFUS Common Stock L - Other D 196.9200 16 3 18,477
2017-09-11 2017-09-11 4 CHUNG T J LFUS Common Stock L - Other D 185.9800 16 3 18,461
2017-06-14 2017-06-09 4 CHUNG T J LFUS Common Stock L - Other D 168.0100 16 3 18,445
2017-05-01 2017-04-28 4 CHUNG T J LFUS Stock Option (right to buy) A - Award D 154.15 945 945
2017-05-01 2017-04-28 4 CHUNG T J LFUS Common Stock A - Award D 505 18,429
2017-02-09 2017-02-09 4 CHUNG T J LFUS Stock option (right to buy) M - Exercise D 63.09 -549 0
2017-02-09 2017-02-09 4 CHUNG T J LFUS Common Stock S - Sale D 164.4100 -1,543 -254 17,905
2017-02-09 2017-02-09 4 CHUNG T J LFUS Common Stock S - Sale D 164.3200 -549 -90 19,448
2017-02-09 2017-02-09 4 CHUNG T J LFUS Common Stock M - Exercise D 63.0900 549 35 19,997
2017-02-07 2016-12-12 4 CHUNG T J LFUS Common Stock L - Other D 155.6500 17 3 19,448
2016-11-29 2016-11-25 4 CHUNG T J LFUS Stock option (right to buy) M - Exercise D 63.09 -1,099 549
2016-11-29 2016-11-25 4 CHUNG T J LFUS Stock option (right to buy) M - Exercise D 62.21 -1,763 0
2016-11-29 2016-11-25 4 CHUNG T J LFUS Common stock S - Sale D 150.0000 -2,862 -429 19,431
2016-11-29 2016-11-25 4 CHUNG T J LFUS Common stock M - Exercise D 63.0900 1,099 69 22,293
2016-11-29 2016-11-25 4 CHUNG T J LFUS Common stock M - Exercise D 62.2100 1,763 110 21,194
2016-09-15 2016-09-14 4 CHUNG T J LFUS Common stock A - Award D 122.0800 21 3 19,431
2016-06-24 2016-06-23 4 CHUNG T J LFUS Common stock A - Award D 117.9300 20 2 19,410
2016-04-26 2016-04-22 4 CHUNG T J LFUS Stock option (right to buy) A - Award D 120.15 1,200 1,200
2016-04-26 2016-04-22 4 CHUNG T J LFUS Common stock A - Award D 671 19,390
2016-03-21 2016-03-18 4 CHUNG T J LFUS Common stock A - Award D 124.0200 11 1 18,719
2016-02-09 2016-02-08 4 CHUNG T J LFUS Stock option (right to buy) M - Exercise D 42.13 -1,724 0
2016-02-09 2016-02-08 4 CHUNG T J LFUS Common stock S - Sale D 107.0600 -1,724 -185 18,708
2016-02-09 2016-02-08 4 CHUNG T J LFUS Common stock M - Exercise D 42.1300 1,724 73 20,432
2015-12-10 2015-12-08 4 CHUNG T J LFUS Common stock A - Award D 107.0400 22 2 18,708
2015-09-09 2015-09-04 4 CHUNG T J LFUS Common stock A - Award D 88.9899 27 2 18,686
2015-06-08 2015-06-05 4 CHUNG T J LFUS Common stock A - Award D 95.4500 21 2 18,659
2015-05-12 2015-05-08 4 CHUNG T J LFUS Common stock A - Award D 97.7100 11 1 18,638
2015-04-28 2015-04-24 4 CHUNG T J LFUS Stock option (right to buy) A - Award D 96.15 1,447 1,447
2015-04-28 2015-04-24 4 CHUNG T J LFUS Common Stock A - Award D 760 18,627
2014-12-09 2014-12-05 4 CHUNG T J LFUS Common stock A - Award D 98.7900 20 2 17,867
2014-09-09 2014-09-05 4 CHUNG T J LFUS Common stock A - Award D 92.2300 23 2 17,847
2014-06-06 2014-06-06 4 CHUNG T J LFUS Common stock A - Award D 89.6600 20 2 17,824
2014-04-29 2014-04-25 4 CHUNG T J LFUS Stock option (right to buy) A - Award D 94.84 1,350 1,350
2014-04-29 2014-04-25 4 CHUNG T J LFUS Common Stock A - Award D 774 17,804
2014-03-11 2014-03-07 4 CHUNG T J LFUS Common stock A - Award D 94.5800 8 1 17,030
2013-12-10 2013-12-06 4 CHUNG T J LFUS Common stock A - Award D 87.7800 20 2 17,022
2013-12-10 2013-11-27 4 CHUNG T J LFUS Common stock G - Gift D 332 17,002
2013-09-16 2013-09-12 4 CHUNG T J LFUS Common stock A - Award D 78.8200 24 2 17,334
2013-06-10 2013-06-06 4 CHUNG T J LFUS Common stock A - Award D 74.5100 22 2 17,310
2013-04-30 2013-04-26 4 CHUNG T J LFUS Stock option (right to buy) A - Award D 66.68 1,716 1,716
2013-04-30 2013-04-26 4 CHUNG T J LFUS Common Stock A - Award D 934 17,288
2013-03-11 2013-03-07 4 CHUNG T J LFUS Common Stock A - Award D 67.5400 24 2 16,354
2013-03-11 2013-03-11 4/A CHUNG T J LFUS Common Stock A - Award D 67.5500 24 2 16,354
2013-02-15 2013-02-14 4 CHUNG T J LFUS Common Stock M - Exercise D 13.88 13.8800 -4,213 -58 0
2013-02-15 2013-02-14 4 CHUNG T J LFUS Common Stock M - Exercise D 36.33 36.3300 -2,415 -88 0
2013-02-15 2013-02-14 4 CHUNG T J LFUS Common Stock S - Sale D 68.0000 -4,213 -286 16,330
2013-02-15 2013-02-14 4 CHUNG T J LFUS Common Stock M - Exercise D 13.8800 4,213 58 20,543
2013-02-15 2013-02-14 4 CHUNG T J LFUS Common Stock S - Sale D 68.0000 -2,415 -164 16,330
2013-02-15 2013-02-14 4 CHUNG T J LFUS Common Stock M - Exercise D 36.3300 2,415 88 18,745
2012-12-13 2012-12-12 4 CHUNG T J LFUS Common Stock A - Award D 58.7900 27 2 16,330
2012-09-11 2012-09-07 4 CHUNG T J LFUS Common stock A - Award D 52.2600 30 2 16,303
2012-06-06 2012-06-05 4 CHUNG T J Deferred Compensation LFUS Common Stock A - Award I 57.4527 24 1 7,971
2012-04-30 2012-04-27 4 CHUNG T J LFUS Stock Option (Right to Buy) A - Award D 63.09 1,648 1,648
2012-04-30 2012-04-27 4 CHUNG T J LFUS Common Stock A - Award D 994 8,302
2012-03-09 2012-03-08 4 CHUNG T J Deferred Compensation LFUS Common Stock A - Award I 54.5000 122 7 7,947
2012-03-09 2012-03-07 4 CHUNG T J Deferred Compensation LFUS Common Stock A - Award I 53.8300 25 1 7,825
P
Åbent marked eller privat køb af ikke-afledte eller afledte værdipapirer
S
Åbent marked eller privat salg af ikke-afledte eller afledte værdipapirer
A
Tildeling, tildeling eller anden erhvervelse af værdipapirer fra virksomheden (såsom en option)
C
Konvertering af derivat
D
Salg eller overførsel af værdipapirer tilbage til virksomheden
F
Betaling af udnyttelseskurs eller skatteforpligtelse ved brug af en del af værdipapirer modtaget fra selskabet
G
Gave af værdipapirer af eller til insideren
K
Aktieswaps og lignende sikringstransaktioner
M
Udnyttelse eller konvertering af afledt værdipapir modtaget fra virksomheden (såsom en option)
V
En transaktion rapporteret frivilligt på formular 4
J
Andet (ledsaget af en fodnote, der beskriver transaktionen)