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United States Computers, Phones & Household Electronics

Koss Corp (KOSS)

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Ticker: KOSS Exchange: NAS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
LILLIE LENORE
1 purchase — total 12,400 USD
Buy 2 Dec 2025
Value US$1,444,677.01 | Price 233.87 | Shares 55,913
Sale 13 Jun 2025
Value US$994,001.77 | Price 406.79 | Shares 42,963
Sale 12 Jun 2025
Value US$7,530.00 | Price 5.02 | Shares 1,500
Sale 12 Jun 2025
Value US$29,460.00 | Price 4.91 | Shares 6,000
Sale 11 Jun 2025
Value US$132,775.00 | Price 5.65 | Shares 23,500
Sale 10 Jun 2025
Value US$145,000.00 | Price 5.80 | Shares 25,000
Sale 12 Dec 2024
Value US$184,725.00 | Price 7.39 | Shares 25,000
Sale 20 May 2024
Value US$131,250.00 | Price 5.25 | Shares 25,000
Sale 20 May 2024
Value US$131,250.00 | Price 5.25 | Shares 25,000
Buy 2 Jun 2022
Value US$20,783.10 | Price 7.30 | Shares 2,847
Buy 1 Jun 2022
Value US$119,384.88 | Price 6.96 | Shares 17,153
Sale 2 Nov 2021
Value US$155,400.00 | Price 15.54 | Shares 10,000
Sale 15 Sep 2021
Value US$427,338.86 | Price 17.74 | Shares 24,089
Sale 26 Aug 2021
Value US$155,805.00 | Price 18.33 | Shares 8,500
Sale 24 Aug 2021
Value US$501,500.00 | Price 20.06 | Shares 25,000
Sale 24 Aug 2021
Value US$250,974.99 | Price 18.27 | Shares 13,737
Sale 24 Aug 2021
Value US$630,976.20 | Price 17.40 | Shares 36,263
Sale 24 Aug 2021
Value US$325,710.00 | Price 19.74 | Shares 16,500
Sale 15 Jun 2021
Value US$121,100.00 | Price 24.22 | Shares 5,000
Sale 14 Jun 2021
Value US$75,600.00 | Price 25.20 | Shares 3,000
Sale 3 Jun 2021
Value US$176,800.00 | Price 35.36 | Shares 5,000
Sale 3 Jun 2021
Value US$162,500.00 | Price 32.50 | Shares 5,000
Sale 3 Jun 2021
Value US$150,000.00 | Price 30.00 | Shares 5,000
Sale 3 Jun 2021
Value US$156,750.00 | Price 31.35 | Shares 5,000
Sale 2 Jun 2021
Value US$140,000.00 | Price 28.00 | Shares 5,000
Sale 2 Jun 2021
Value US$215,000.00 | Price 43.00 | Shares 5,000
Sale 2 Jun 2021
Value US$150,000.00 | Price 30.00 | Shares 5,000
Sale 2 Jun 2021
Value US$243,588.23 | Price 29.63 | Shares 8,221
Sale 2 Jun 2021
Value US$281,800.00 | Price 28.18 | Shares 10,000
Sale 2 Jun 2021
Value US$652,750.00 | Price 26.11 | Shares 25,000
Sale 2 Jun 2021
Value US$405,100.00 | Price 40.51 | Shares 10,000
Sale 1 Jun 2021
Value US$125,000.00 | Price 25.00 | Shares 5,000
Sale 1 Jun 2021
Value US$294,946.16 | Price 25.04 | Shares 11,779
Sale 28 May 2021
Value US$235,000.00 | Price 23.50 | Shares 10,000
Sale 26 May 2021
Value US$191,340.00 | Price 21.26 | Shares 9,000
Sale 18 May 2021
Value US$62,760.39 | Price 18.83 | Shares 3,333
Planned sale 1 Apr 2021
Value US$133,320.00 | Price 24.24 | Shares 5,500
Planned sale 1 Apr 2021
Value US$232,260.00 | Price 22.12 | Shares 10,500
Sale 12 Mar 2021
Value US$123,618.78 | Price 29.99 | Shares 4,122
Sale 10 Mar 2021
Value US$146,880.00 | Price 36.72 | Shares 4,000
Sale 10 Mar 2021
Value US$150,000.00 | Price 30.00 | Shares 5,000
Sale 10 Mar 2021
Value US$279,500.00 | Price 27.95 | Shares 10,000
Sale 10 Mar 2021
Value US$252,200.00 | Price 25.22 | Shares 10,000
Sale 10 Mar 2021
Value US$380,500.00 | Price 38.05 | Shares 10,000
Sale 10 Mar 2021
Value US$116,400.00 | Price 29.10 | Shares 4,000
Sale 10 Mar 2021
Value US$290,000.00 | Price 29.00 | Shares 10,000
Sale 10 Mar 2021
Value US$199,500.00 | Price 39.90 | Shares 5,000
Sale 10 Mar 2021
Value US$754,400.00 | Price 37.72 | Shares 20,000
Sale 10 Mar 2021
Value US$537,000.00 | Price 26.85 | Shares 20,000
Planned sale 1 Mar 2021
Value US$17,010.00 | Price 17.01 | Shares 1,000
Planned sale 1 Mar 2021
Value US$379,500.00 | Price 16.50 | Shares 23,000
Planned sale 1 Mar 2021
Value US$370,425.00 | Price 16.50 | Shares 22,450
Sale 25 Feb 2021
Value US$1,082,400.00 | Price 27.06 | Shares 40,000
Sale 25 Feb 2021
Value US$235,100.00 | Price 23.51 | Shares 10,000
Sale 25 Feb 2021
Value US$301,300.00 | Price 30.13 | Shares 10,000
Sale 25 Feb 2021
Value US$361,790.00 | Price 32.89 | Shares 11,000
Sale 25 Feb 2021
Value US$125,000.00 | Price 31.25 | Shares 4,000
Sale 25 Feb 2021
Value US$1,082,400.00 | Price 27.06 | Shares 40,000
Sale 25 Feb 2021
Value US$235,100.00 | Price 23.51 | Shares 10,000
Sale 25 Feb 2021
Value US$325,000.00 | Price 32.50 | Shares 10,000
Sale 25 Feb 2021
Value US$325,000.00 | Price 32.50 | Shares 10,000
Sale 25 Feb 2021
Value US$755,750.00 | Price 30.23 | Shares 25,000
Sale 4 Feb 2021
Value US$120,000.00 | Price 24.00 | Shares 5,000
Sale 3 Feb 2021
Value US$298,430.00 | Price 27.13 | Shares 11,000
Sale 3 Feb 2021
Value US$130,000.00 | Price 26.00 | Shares 5,000
Sale 3 Feb 2021
Value US$531,600.00 | Price 26.58 | Shares 20,000
Sale 3 Feb 2021
Value US$254,400.00 | Price 25.44 | Shares 10,000
Sale 2 Feb 2021
Value US$595,200.00 | Price 19.84 | Shares 30,000
Sale 2 Feb 2021
Value US$595,200.00 | Price 19.84 | Shares 30,000
Sale 2 Feb 2021
Value US$92,753.31 | Price 18.07 | Shares 5,133
Sale 2 Feb 2021
Value US$824,600.00 | Price 23.56 | Shares 35,000
Sale 2 Feb 2021
Value US$595,200.00 | Price 19.84 | Shares 30,000
Sale 2 Feb 2021
Value US$500,500.00 | Price 18.20 | Shares 27,500
Sale 2 Feb 2021
Value US$51,708.24 | Price 19.98 | Shares 2,588
Sale 2 Feb 2021
Value US$64,800.00 | Price 21.60 | Shares 3,000
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
2025-12-04 2025-12-02 B Purchase
3.4
LILLIE LENORE
Non-Executive Director
55,913 -10.9%
233.87
US$1,444,677 		55,913 -10.9% 233.87 US$1,444,677
2025-06-17 2025-06-13 S Sale
4.1
Koss Michael J Jr

VP - Marketing & Product

Officer
42,963 -32.6%
406.79
US$994,002 		42,963 -32.6% 406.79 US$994,002
2025-06-17 2025-06-12 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer
66,454 -18.1%
323.00
US$4,228,921 		66,454 -18.1% 323.00 US$4,228,921
2025-06-17 2025-06-12 S Sale
4.1
Koss Michael J Jr

VP - Marketing & Product

Officer
6,000 -18.8%
4.91
US$29,460 		6,000 -18.8% 4.91 US$29,460
2025-06-17 2025-06-11 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer
23,500 -10.7%
5.65
US$132,775 		23,500 -10.7% 5.65 US$132,775
2025-06-17 2025-06-10 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer
25,000 -11.3%
5.80
US$145,000 		25,000 -11.3% 5.80 US$145,000
2024-12-16 2024-12-12 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer
25,000 -11.3%
7.39
US$184,725 		25,000 -11.3% 7.39 US$184,725
2024-05-21 2024-05-20 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer
25,000 -11.3%
5.25
US$131,250 		25,000 -11.3% 5.25 US$131,250
2024-05-21 2024-05-20 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer
25,000 -11.3%
5.25
US$131,250 		25,000 -11.3% 5.25 US$131,250
2022-06-03 2022-06-02 B Purchase
3.6
Sweasy William Jesse
Non-Executive Director
2,847 +16.6%
7.30
US$20,783 		2,847 +16.6% 7.30 US$20,783
2022-06-02 2022-06-01 B Purchase
3.6
Sweasy William Jesse
Non-Executive Director
17,153 +inf%
6.96
US$119,385 		17,153 +inf% 6.96 US$119,385
2021-11-02 2021-11-02 S Sale
3.8
Smith David Donnan

Chief Financial Officer

Officer
10,000 -100.0%
15.54
US$155,400 		10,000 -100.0% 15.54 US$155,400
2021-09-17 2021-09-15 S Sale
4.1
Koss Michael J Jr

VP - Marketing & Product

Officer
24,089 -48.1%
17.74
US$427,339 		24,089 -48.1% 17.74 US$427,339
2021-09-03 2021-08-26 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
8,500 -1.1%
18.33
US$155,805 		8,500 -1.1% 18.33 US$155,805
2021-08-26 2021-08-24 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
25,000 -14.2%
20.06
US$501,500 		25,000 -14.2% 20.06 US$501,500
2021-08-26 2021-08-24 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
13,737 -7.2%
18.27
US$250,975 		13,737 -7.2% 18.27 US$250,975
2021-08-26 2021-08-24 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
36,263 -16.0%
17.40
US$630,976 		36,263 -16.0% 17.40 US$630,976
2021-08-26 2021-08-24 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
16,500 -2.1%
19.74
US$325,710 		16,500 -2.1% 19.74 US$325,710
2021-06-16 2021-06-15 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
5,000 -3.2%
24.22
US$121,100 		5,000 -3.2% 24.22 US$121,100
2021-06-16 2021-06-14 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
3,000 -1.9%
25.20
US$75,600 		3,000 -1.9% 25.20 US$75,600
2021-06-03 2021-06-03 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
5,000 -2.8%
35.36
US$176,800 		5,000 -2.8% 35.36 US$176,800
2021-06-03 2021-06-03 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
5,000 -2.7%
32.50
US$162,500 		5,000 -2.7% 32.50 US$162,500
2021-06-03 2021-06-03 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
5,000 -2.7%
30.00
US$150,000 		5,000 -2.7% 30.00 US$150,000
2021-06-03 2021-06-03 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
5,000 -2.6%
31.35
US$156,750 		5,000 -2.6% 31.35 US$156,750
2021-06-03 2021-06-02 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
5,000 -2.5%
28.00
US$140,000 		5,000 -2.5% 28.00 US$140,000
2021-06-03 2021-06-02 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
5,000 -15.6%
43.00
US$215,000 		5,000 -15.6% 43.00 US$215,000
2021-06-03 2021-06-02 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
5,000 -13.5%
30.00
US$150,000 		5,000 -13.5% 30.00 US$150,000
2021-06-03 2021-06-02 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
8,221 -1.0%
29.63
US$243,588 		8,221 -1.0% 29.63 US$243,588
2021-06-03 2021-06-02 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
10,000 -1.3%
28.18
US$281,800 		10,000 -1.3% 28.18 US$281,800
2021-06-03 2021-06-02 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
25,000 -3.1%
26.11
US$652,750 		25,000 -3.1% 26.11 US$652,750
2021-06-03 2021-06-02 S Sale
4.1
Koss Michael J Jr

VP - Marketing & Product

Officer
10,000 -21.7%
40.51
US$405,100 		10,000 -21.7% 40.51 US$405,100
2021-06-03 2021-06-01 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
5,000 -2.5%
25.00
US$125,000 		5,000 -2.5% 25.00 US$125,000
2021-06-03 2021-06-01 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
11,779 -1.5%
25.04
US$294,946 		11,779 -1.5% 25.04 US$294,946
2021-06-01 2021-05-28 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
10,000 -4.7%
23.50
US$235,000 		10,000 -4.7% 23.50 US$235,000
2021-05-28 2021-05-26 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
9,000 -1.1%
21.26
US$191,340 		9,000 -1.1% 21.26 US$191,340
2021-05-19 2021-05-18 S Sale
3.6
Doerr Thomas L.
Non-Executive Director
3,333 -100.0%
18.83
US$62,760 		3,333 -100.0% 18.83 US$62,760
2021-04-05 2021-04-01 PlS Planned sale
3.8
Smith David Donnan

Chief Financial Officer

Officer
5,500 -100.0%
24.24
US$133,320 		5,500 -100.0% 24.24 US$133,320
2021-04-05 2021-04-01 PlS Planned sale
3.8
Smith David Donnan

Chief Financial Officer

Officer
10,500 -65.6%
22.12
US$232,260 		10,500 -65.6% 22.12 US$232,260
2021-03-16 2021-03-12 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
4,122 -10.0%
29.99
US$123,619 		4,122 -10.0% 29.99 US$123,619
2021-03-12 2021-03-10 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
4,000 -1.8%
36.72
US$146,880 		4,000 -1.8% 36.72 US$146,880
2021-03-12 2021-03-10 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
5,000 -2.2%
30.00
US$150,000 		5,000 -2.2% 30.00 US$150,000
2021-03-12 2021-03-10 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
10,000 -4.2%
27.95
US$279,500 		10,000 -4.2% 27.95 US$279,500
2021-03-12 2021-03-10 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
10,000 -19.6%
38.05
US$380,500 		10,000 -19.6% 38.05 US$380,500
2021-03-12 2021-03-10 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
4,000 -7.3%
29.10
US$116,400 		4,000 -7.3% 29.10 US$116,400
2021-03-12 2021-03-10 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
10,000 -1.3%
29.00
US$290,000 		10,000 -1.3% 29.00 US$290,000
2021-03-12 2021-03-10 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
5,000 -0.6%
39.90
US$199,500 		5,000 -0.6% 39.90 US$199,500
2021-03-12 2021-03-10 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
20,000 -2.4%
37.72
US$754,400 		20,000 -2.4% 37.72 US$754,400
2021-03-12 2021-03-10 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
20,000 -2.4%
26.85
US$537,000 		20,000 -2.4% 26.85 US$537,000
2021-03-12 2021-03-10 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
10,000 -4.1%
25.22
US$252,200 		10,000 -4.1% 25.22 US$252,200
2021-03-02 2021-03-01 PlS Planned sale
3.8
Smith David Donnan

Chief Financial Officer

Officer
1,000 -100.0%
17.01
US$17,010 		1,000 -100.0% 17.01 US$17,010
2021-03-02 2021-03-01 PlS Planned sale
3.8
Smith David Donnan

Chief Financial Officer

Officer
23,000 -95.8%
16.50
US$379,500 		23,000 -95.8% 16.50 US$379,500
2021-03-02 2021-03-01 PlS Planned sale
3.4
LILLIE LENORE

VP - Operations

Officer
22,450 -100.0%
16.50
US$370,425 		22,450 -100.0% 16.50 US$370,425
2021-02-26 2021-02-25 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
40,000 -5.3%
27.06
US$1,082,400 		40,000 -5.3% 27.06 US$1,082,400
2021-02-26 2021-02-25 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
10,000 -1.3%
23.51
US$235,100 		10,000 -1.3% 23.51 US$235,100
2021-02-26 2021-02-25 S Sale
4.1
Koss Michael J Jr

VP - Marketing & Product

Officer
11,000 -19.3%
32.89
US$361,790 		11,000 -19.3% 32.89 US$361,790
2021-02-26 2021-02-25 S Sale
4.1
Koss Michael J Jr

VP - Marketing & Product

Officer
4,000 -6.6%
31.25
US$125,000 		4,000 -6.6% 31.25 US$125,000
2021-02-26 2021-02-25 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
40,000 -5.3%
27.06
US$1,082,400 		40,000 -5.3% 27.06 US$1,082,400
2021-02-26 2021-02-25 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
10,000 -1.3%
23.51
US$235,100 		10,000 -1.3% 23.51 US$235,100
2021-02-26 2021-02-25 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
10,000 -15.4%
32.50
US$325,000 		10,000 -15.4% 32.50 US$325,000
2021-02-26 2021-02-25 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
10,000 -1.2%
32.50
US$325,000 		10,000 -1.2% 32.50 US$325,000
2021-02-26 2021-02-25 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
25,000 -3.0%
30.23
US$755,750 		25,000 -3.0% 30.23 US$755,750
2021-02-26 2021-02-25 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
10,000 -3.8%
30.13
US$301,300 		10,000 -3.8% 30.13 US$301,300
2021-02-05 2021-02-04 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
5,000 -1.8%
24.00
US$120,000 		5,000 -1.8% 24.00 US$120,000
2021-02-05 2021-02-03 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
11,000 -14.5%
27.13
US$298,430 		11,000 -14.5% 27.13 US$298,430
2021-02-05 2021-02-03 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
5,000 -6.2%
26.00
US$130,000 		5,000 -6.2% 26.00 US$130,000
2021-02-05 2021-02-03 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
20,000 -2.4%
26.58
US$531,600 		20,000 -2.4% 26.58 US$531,600
2021-02-05 2021-02-03 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
10,000 -3.6%
25.44
US$254,400 		10,000 -3.6% 25.44 US$254,400
2021-02-05 2021-02-02 S Sale
3.4
Nancy Koss 2012 Trust, Dated 12/20/12
Large shareholder
30,000 -3.8%
19.84
US$595,200 		30,000 -3.8% 19.84 US$595,200
2021-02-03 2021-02-02 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
30,000 -3.8%
19.84
US$595,200 		30,000 -3.8% 19.84 US$595,200
2021-02-03 2021-02-02 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
5,133 -1.8%
18.07
US$92,753 		5,133 -1.8% 18.07 US$92,753
2021-02-03 2021-02-02 S Sale
4.2
KOSS JOHN C JR

Vice President - Sales

Officer Large shareholder
35,000 -10.9%
23.56
US$824,600 		35,000 -10.9% 23.56 US$824,600
2021-02-03 2021-02-02 S Sale
4.0
KOSS MICHAEL J

President and CEO

Executive Director Large shareholder
30,000 -3.8%
19.84
US$595,200 		30,000 -3.8% 19.84 US$595,200
2021-02-03 2021-02-02 S Sale
3.4
LILLIE LENORE

VP - Operations

Officer
27,500 -100.0%
18.20
US$500,500 		27,500 -100.0% 18.20 US$500,500
2021-02-03 2021-02-02 S Sale
3.4
LILLIE LENORE

VP - Operations

Officer
2,588 -8.6%
19.98
US$51,708 		2,588 -8.6% 19.98 US$51,708
2021-02-03 2021-02-02 S Sale
3.4
LILLIE LENORE

VP - Operations

Officer
3,000 -9.1%
21.60
US$64,800 		3,000 -9.1% 21.60 US$64,800
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