United States Automobiles & Auto Parts

Mayville Engineering Company Inc (MEC)

Track

Mayville Engineering Company Inc experienced eleven insider trading transactions over the past ninety days, totaling approximately 3.65 million dollars in sales. Key executives, including the CEO, offloaded shares through planned and proposed divestments following the most recent earnings report. The stock price declined 8.9 percent during this period, reflecting broader market volatility.
Ticker: MEC Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Mayville Engineering Company Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Sale 6 Aug 2026
Value US$317,760.98 | Price 263.16 | Shares 53,407 (+36.9%)
Proposed sale 6 Aug 2026
Value US$895,784.70 | Price 82.34 | Shares 41,983
Proposed sale 6 Aug 2026
Value US$100,000.00 | Price 26.13 | Shares 1,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-08-07 2026-08-06 S Sale
2.3
Leuba Sean P

SVP, GC & Secretary

Officer
53,407 +36.9%
263.16
US$317,761 		53,407 +36.9% 263.16 US$317,761
2026-08-06 2026-08-06 PrS Proposed sale
2.3
Leuba Sean P

Officer

Officer
41,983
82.34
US$895,785 		41,983 82.34 US$895,785
2026-08-06 2026-08-06 PrS Proposed sale
2.3
Leuba Sean P

Officer

Officer
8,039
99.11
US$3,576,950 		8,039 99.11 US$3,576,950
2026-06-12 2026-06-11 PlS Planned sale
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
15,688 -11.2%
35.05
US$549,824 		15,688 -11.2% 35.05 US$549,824
2026-06-11 2026-06-11 PrS Proposed sale
4.0
JAGADEESH REDDY

Director; Officer

Executive Director
15,688
33.84
US$530,882 		15,688 33.84 US$530,882
2026-06-11 2026-06-11 PrS Proposed sale
4.0
JAGADEESH REDDY

Director; Officer

Executive Director
15,688
33.84
US$530,882 		15,688 33.84 US$530,882
2026-06-10 2026-06-08 PlS Planned sale
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
1,300 -0.9%
35.01
US$45,510 		1,300 -0.9% 35.01 US$45,510
2026-06-08 2026-06-08 PrS Proposed sale
4.0
JAGADEESH REDDY

Director; Officer

Executive Director
1,300
33.25
US$43,225 		1,300 33.25 US$43,225
2026-06-02 2026-06-01 PlS Planned sale
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
17,942 -11.3%
30.00
US$538,262 		17,942 -11.3% 30.00 US$538,262
2026-06-01 2026-06-01 PrS Proposed sale
4.0
JAGADEESH REDDY

Director; Officer

Executive Director
17,294
26.85
US$464,344 		17,294 26.85 US$464,344
2026-05-27 2026-05-26 S Sale
2.1
Raber Ryan F

EVP - Strategy, Sales & Mktg

Officer
20,000 -18.7%
26.00
US$520,000 		20,000 -18.7% 26.00 US$520,000
2026-05-26 2026-05-21 S Sale
Nichols Craig D

SVP, Operations & Supply Chain

Officer
4,000 -96.5%
23.24
US$92,960 		4,000 -96.5% 23.24 US$92,960
2026-05-11 2026-05-07 PlS Planned sale
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
11,464 -6.7%
26.11
US$299,325 		11,464 -6.7% 26.11 US$299,325
2026-05-11 2026-05-07 PlS Planned sale
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
10,332 -5.7%
25.72
US$265,739 		10,332 -5.7% 25.72 US$265,739
2026-05-07 2026-05-07 PrS Proposed sale
4.0
JAGADEESH A REDDY

Director; Officer

Executive Director
21,796
23.35
US$508,937 		21,796 23.35 US$508,937
2026-03-09 2026-03-05 S Sale
2.3
Leuba Sean P

GC & Secretary

Officer
6,698 -36.1%
18.81
US$125,989 		6,698 -36.1% 18.81 US$125,989
2026-03-09 2026-03-05 S Sale
2.3
Leuba Sean P

GC & Secretary

Officer
2,500 -100.0%
20.07
US$50,175 		2,500 -100.0% 20.07 US$50,175
2025-12-15 2025-12-11 S Sale
3.0
Fisher Steven L
Non-Executive Director
5,000 -14.1%
19.14
US$95,700 		5,000 -14.1% 19.14 US$95,700
2025-12-15 2025-12-11 S Sale
3.0
Fisher Steven L
Non-Executive Director
5,000 -12.4%
19.08
US$95,400 		5,000 -12.4% 19.08 US$95,400
2025-11-26 2025-11-25 S Sale
2.1
Raber Ryan F

EVP - Strategy, Sales & Mktg

Officer
2,500 -2.7%
16.63
US$41,562 		2,500 -2.7% 16.63 US$41,562
2025-11-26 2025-11-25 S Sale
2.1
Raber Ryan F

EVP - Strategy, Sales & Mktg

Officer
12,500 -11.8%
16.69
US$208,625 		12,500 -11.8% 16.69 US$208,625
2025-08-11 2025-08-11 B Purchase
2.3
Leuba Sean P

SVP, Corp. Development & GC

Officer
500 +25.0%
13.56
US$6,780 		500 +25.0% 13.56 US$6,780
2025-08-11 2025-08-08 B Purchase
2.9
Lehr Rachele Marie

Chief Financial Officer

Officer
1,400 +7.2%
14.08
US$19,712 		1,400 +7.2% 14.08 US$19,712
2025-08-08 2025-08-07 B Purchase
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
7,500 +5.4%
14.06
US$105,450 		7,500 +5.4% 14.06 US$105,450
2025-03-13 2025-03-12 B Purchase
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
380 +inf%
13.75
US$5,225 		380 +inf% 13.75 US$5,225
2025-03-07 2025-03-06 B Purchase
2.3
Leuba Sean P

SVP, Corp. Development & GC

Officer
1,000 +100.0%
14.18
US$14,179 		1,000 +100.0% 14.18 US$14,179
2024-11-08 2024-11-07 B Purchase
3.3
Butz Todd M

Chief Financial Officer

Officer
1,272 +3.2%
15.79
US$20,079 		1,272 +3.2% 15.79 US$20,079
2024-11-08 2024-11-07 B Purchase
2.9
Lehr Rachele Marie

Chief Human Resources Officer

Officer
1,500 +24.9%
15.90
US$23,850 		1,500 +24.9% 15.90 US$23,850
2024-11-07 2024-11-07 B Purchase
2.3
Leuba Sean P

SVP, Corp. Development & GC

Officer
1,000 +inf%
16.13
US$16,125 		1,000 +inf% 16.13 US$16,125
2024-11-07 2024-11-07 B Purchase
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
5,903 +7.1%
16.72
US$98,698 		5,903 +7.1% 16.72 US$98,698
2024-08-26 2024-08-23 S Sale
2.1
Raber Ryan F

EVP - Strategy, Sales & Mktg

Officer
21,508 -18.1%
19.15
US$411,878 		21,508 -18.1% 19.15 US$411,878
2024-03-19 2024-03-15 B Purchase
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
1,560 +inf%
12.85
US$20,046 		1,560 +inf% 12.85 US$20,046
2023-11-20 2023-11-17 B Purchase
3.0
Fisher Steven L
Non-Executive Director
3,000 +16.0%
12.75
US$38,250 		3,000 +16.0% 12.75 US$38,250
2023-11-07 2023-11-03 B Purchase
3.0
Fisher Steven L
Non-Executive Director
5,000 +36.4%
12.45
US$62,250 		5,000 +36.4% 12.45 US$62,250
2022-11-07 2022-11-04 B Purchase
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
1,600 +1.3%
9.89
US$15,820 		1,600 +1.3% 9.89 US$15,820
2022-11-07 2022-11-04 B Purchase
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
12,017 +11.1%
9.51
US$114,267 		12,017 +11.1% 9.51 US$114,267
2022-11-07 2022-11-03 B Purchase
4.0
Reddy Jagadeesh A

President & CEO

Executive Director
13,454 +14.0%
8.69
US$116,961 		13,454 +14.0% 8.69 US$116,961
2022-08-11 2022-08-10 B Purchase
3.3
Butz Todd M

Chief Financial Officer

Officer
2,000 +2.4%
7.25
US$14,499 		2,000 +2.4% 7.25 US$14,499
2022-03-04 2022-03-04 B Purchase
3.1
Christen Timothy L
Non-Executive Director
2,000 +2.1%
9.80
US$19,600 		2,000 +2.1% 9.80 US$19,600
2021-11-04 2021-11-04 B Purchase
1.1
Michels Patrick D
Non-Executive Director
10,000 +19.8%
17.05
US$170,500 		10,000 +19.8% 17.05 US$170,500
2020-09-15 2020-09-15 S Sale
2.8
Johnson Craig E
Non-Executive Director
232 -3.8%
9.37
US$2,174 		232 -3.8% 9.37 US$2,174
2020-09-15 2020-09-15 S Sale
2.8
Johnson Craig E
Non-Executive Director
1,800 -22.7%
9.09
US$16,355 		1,800 -22.7% 9.09 US$16,355
2020-09-15 2020-09-14 S Sale
2.8
Johnson Craig E
Non-Executive Director
200 -2.5%
9.32
US$1,865 		200 -2.5% 9.32 US$1,865
2020-09-15 2020-09-14 S Sale
2.8
Johnson Craig E
Non-Executive Director
3,768 -31.7%
9.15
US$34,478 		3,768 -31.7% 9.15 US$34,478
2020-09-15 2020-09-11 S Sale
2.8
Johnson Craig E
Non-Executive Director
4,000 -25.2%
9.20
US$36,800 		4,000 -25.2% 9.20 US$36,800
2020-07-17 2020-03-16 S Sale
0.6
Welak Eric J

EVP - Fabrication

Officer
11,867 -21.3%
5.55
US$65,882 		11,867 -21.3% 5.55 US$65,882
2020-03-16 2020-03-13 B Purchase
2.5
St. Peter John A
Non-Executive Director
2,000 +400.0%
5.28
US$10,551 		2,000 +400.0% 5.28 US$10,551
2020-03-16 2020-03-12 B Purchase
3.1
Christen Timothy L
Non-Executive Director
25,000 +58.1%
4.58
US$114,550 		25,000 +58.1% 4.58 US$114,550
2020-03-16 2020-03-12 B Purchase
3.2
Kamphuis Robert D

Chairman, Pres. & CEO

Executive Director
30,000 +42.9%
5.50
US$165,000 		30,000 +42.9% 5.50 US$165,000
2020-03-13 2020-03-12 B Purchase
3.3
Butz Todd M

Chief Financial Officer

Officer
5,000 +32.3%
4.23
US$21,130 		5,000 +32.3% 4.23 US$21,130
2020-03-13 2020-03-11 B Purchase
2.8
Johnson Craig E
Non-Executive Director
10,000 +inf%
6.02
US$60,198 		10,000 +inf% 6.02 US$60,198
2020-03-11 2020-03-10 B Purchase
3.1
Christen Timothy L
Non-Executive Director
10,000 +30.3%
6.31
US$63,097 		10,000 +30.3% 6.31 US$63,097
2020-03-03 2020-03-02 B Purchase
1.3
CARLSON ALLEN J
Non-Executive Director
5,000 +100.0%
7.47
US$37,345 		5,000 +100.0% 7.47 US$37,345
2020-03-03 2020-03-02 B Purchase
3.1
Christen Timothy L
Non-Executive Director
8,000 +32.0%
7.40
US$59,183 		8,000 +32.0% 7.40 US$59,183
2019-11-04 2019-11-04 B Purchase Rothman Jay O. Non-Executive Director
10,000 +200.0%
10.33
US$103,250 		10,000 +200.0% 10.33 US$103,250
2019-11-04 2019-10-31 B Purchase Raber Ryan F

EVP - Sales & Marketing

Officer
2,500 +inf%
8.50
US$21,250 		2,500 +inf% 8.50 US$21,250
2019-11-01 2019-10-30 B Purchase
3.3
Butz Todd M

Chief Financial Officer
10,000 +182.7%
8.75
US$87,531 		10,000 +182.7% 8.75 US$87,531
2019-11-01 2019-10-30 B Purchase
3.2
Kamphuis Robert D

Chairman, Pres. & CEO

Executive Director
20,000 +40.0%
8.79
US$175,800 		20,000 +40.0% 8.79 US$175,800
2019-10-31 2019-10-30 B Purchase
3.1
Christen Timothy L
12,500 +100.0%
8.94
US$111,798 		12,500 +100.0% 8.94 US$111,798
2019-08-19 2019-08-13 B Purchase Fisher Steven L Non-Executive Director
7,500 +inf%
12.02
US$90,130 		7,500 +inf% 12.02 US$90,130
2019-08-12 2019-08-08 B Purchase Kamphuis Robert D

Chairman, Pres. & CEO

Executive Director
15,000 +42.9%
12.09
US$181,347 		15,000 +42.9% 12.09 US$181,347
2019-06-14 2019-06-13 B Purchase
1.7
Sanderson Clifford O

Vice President - HR
350 +21.2%
14.41
US$5,044 		350 +21.2% 14.41 US$5,044
2019-06-14 2019-06-13 B Purchase
1.7
Sanderson Clifford O

Vice President - HR
1,500 +1000.0%
14.25
US$21,375 		1,500 +1000.0% 14.25 US$21,375
2019-06-14 2019-06-13 B Purchase
3.2
Kamphuis Robert D

Chairman, Pres. & CEO

Executive Director
2,397 +7.4%
14.53
US$34,819 		2,397 +7.4% 14.53 US$34,819
2019-06-14 2019-06-12 B Purchase
3.3
Butz Todd M

Chief Financial Officer
4,421 +419.8%
13.19
US$58,305 		4,421 +419.8% 13.19 US$58,305
2019-06-14 2019-06-12 B Purchase
3.3
Butz Todd M

Chief Financial Officer
453 +75.5%
12.95
US$5,866 		453 +75.5% 12.95 US$5,866
2019-06-14 2019-06-12 B Purchase
3.3
Butz Todd M

Chief Financial Officer
600 +inf%
12.59
US$7,553 		600 +inf% 12.59 US$7,553
2019-06-14 2019-06-12 B Purchase
3.1
Christen Timothy L
7,500 +150.0%
12.92
US$96,900 		7,500 +150.0% 12.92 US$96,900
2019-06-14 2019-06-12 B Purchase
3.2
Kamphuis Robert D

Chairman, Pres. & CEO

Executive Director
32,063 +inf%
12.89
US$413,321 		32,063 +inf% 12.89 US$413,321
2019-06-14 2019-05-13 B Purchase
1.7
Sanderson Clifford O

Vice President - HR
150 +inf%
17.00
US$2,550 		150 +inf% 17.00 US$2,550
2019-05-15 2019-05-13 B Purchase
0.6
Rothman Jay O.
5,000 +inf%
17.00
US$85,000 		5,000 +inf% 17.00 US$85,000
2019-05-15 2019-05-13 B Purchase
3.1
Christen Timothy L
5,000 +inf%
17.00
US$85,000 		5,000 +inf% 17.00 US$85,000
2019-05-15 2019-05-13 B Purchase
2.5
St. Peter John A
500 +inf%
17.00
US$8,500 		500 +inf% 17.00 US$8,500
2019-05-15 2019-05-13 B Purchase
1.1
Michels Patrick D
25,000 +inf%
17.00
US$425,000 		25,000 +inf% 17.00 US$425,000
2019-05-15 2019-05-13 B Purchase
1.3
CARLSON ALLEN J
Non-Executive Director
5,000 +inf%
17.00
US$85,000 		5,000 +inf% 17.00 US$85,000
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