Stock chart
Ticker: NL Exchange: NYS


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Earnings
Earnings
 
Value bought

Past 90 days

 
Value sold

Past 90 days

 
Net insiders buying

Past 90 days

 
Trades (buy and sell)

Past 90 days

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned 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
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
113 +0.7%
7.46
USD 843
113 +0.7% 7.46 USD 843
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
10 +0.1%
7.40
USD 74
10 +0.1% 7.40 USD 74
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
1 +0.0%
7.37
USD 7
1 +0.0% 7.37 USD 7
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
588 +3.9%
7.36
USD 4,328
588 +3.9% 7.36 USD 4,328
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
100 +0.7%
7.34
USD 734
100 +0.7% 7.34 USD 734
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
188 +1.3%
7.33
USD 1,378
188 +1.3% 7.33 USD 1,378
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
186 +1.3%
7.24
USD 1,347
186 +1.3% 7.24 USD 1,347
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
113 +0.8%
7.23
USD 817
113 +0.8% 7.23 USD 817
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
122 +0.8%
7.22
USD 881
122 +0.8% 7.22 USD 881
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
9 +0.1%
7.21
USD 65
9 +0.1% 7.21 USD 65
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
1,000 +7.5%
7.19
USD 7,190
1,000 +7.5% 7.19 USD 7,190
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
100 +0.8%
7.18
USD 718
100 +0.8% 7.18 USD 718
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
1,000 +8.1%
7.15
USD 7,150
1,000 +8.1% 7.15 USD 7,150
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
470 +4.0%
7.14
USD 3,356
470 +4.0% 7.14 USD 3,356
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
500 +4.4%
7.08
USD 3,540
500 +4.4% 7.08 USD 3,540
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
1,000 +9.7%
7.07
USD 7,070
1,000 +9.7% 7.07 USD 7,070
2025-03-13 2025-03-12 B Purchase

Kramer Kevin B

Non-Executive Director
1,000 +10.7%
6.93
USD 6,930
1,000 +10.7% 6.93 USD 6,930
2025-03-12 2025-03-11 B Purchase

Kramer Kevin B

Non-Executive Director
500 +5.6%
6.83
USD 3,415
500 +5.6% 6.83 USD 3,415
2025-03-12 2025-03-11 B Purchase

Kramer Kevin B

Non-Executive Director
420 +5.0%
6.79
USD 2,852
420 +5.0% 6.79 USD 2,852
2025-03-12 2025-03-11 B Purchase

Kramer Kevin B

Non-Executive Director
1,080 +14.7%
6.78
USD 7,322
1,080 +14.7% 6.78 USD 7,322
2025-03-12 2025-03-11 B Purchase

Kramer Kevin B

Non-Executive Director
1,000 +15.7%
6.76
USD 6,760
1,000 +15.7% 6.76 USD 6,760
2025-03-12 2025-03-11 B Purchase

Kramer Kevin B

Non-Executive Director
500 +8.5%
6.71
USD 3,355
500 +8.5% 6.71 USD 3,355
2025-03-12 2025-03-11 B Purchase

Kramer Kevin B

Non-Executive Director
1,000 +20.6%
6.47
USD 6,470
1,000 +20.6% 6.47 USD 6,470
2025-03-12 2025-03-11 B Purchase

Kramer Kevin B

Non-Executive Director
1,000 +26.0%
6.36
USD 6,360
1,000 +26.0% 6.36 USD 6,360
2025-03-12 2025-03-11 B Purchase

Kramer Kevin B

Non-Executive Director
1,000 +35.1%
6.32
USD 6,320
1,000 +35.1% 6.32 USD 6,320
2025-03-12 2025-03-11 B Purchase

Hanley Bryan A.

Senior VP and Treasurer

Officer
250 +25.0%
6.78
USD 1,695
250 +25.0% 6.78 USD 1,695
2022-12-06 2022-12-06 B Purchase

Samford Amy A.

Executive VP and CFO

Officer
2,000 +inf%
6.94
USD 13,880
2,000 +inf% 6.94 USD 13,880
2022-06-02 2022-06-01 S Sale

CONTRAN CORP

Large shareholder
2,000 -100.0%
8.23
USD 16,460
2,000 -100.0% 8.23 USD 16,460
2020-03-13 2020-03-13 B Purchase

Hanley Bryan A.

Vice President and Treasurer

Officer
1,000 +inf%
2.71
USD 2,706
1,000 +inf% 2.71 USD 2,706
2019-01-03 2018-12-31 S Sale

STAFFORD THOMAS P

Non-Executive Director
3,000 -73.2%
3.52
USD 10,559
3,000 -73.2% 3.52 USD 10,559
2019-01-03 2018-12-31 S Sale

STAFFORD THOMAS P

Non-Executive Director
4,000 -49.4%
3.59
USD 14,360
4,000 -49.4% 3.59 USD 14,360
2019-01-03 2018-12-31 S Sale

STAFFORD THOMAS P

Non-Executive Director
4,000 -33.1%
3.59
USD 14,375
4,000 -33.1% 3.59 USD 14,375
2019-01-03 2018-12-31 S Sale

STAFFORD THOMAS P

Non-Executive Director
6,000 -33.1%
3.67
USD 22,049
6,000 -33.1% 3.67 USD 22,049
2019-01-03 2018-12-31 S Sale

STAFFORD THOMAS P

Non-Executive Director
2,000 -10.0%
3.68
USD 7,351
2,000 -10.0% 3.68 USD 7,351
2012-05-17 2012-05-17 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
1,553 +0.1%
11.85
USD 18,403
1,553 +0.1% 11.85 USD 18,403
2011-12-12 2011-12-12 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
4,296 +1.1%
12.50
USD 53,700
4,296 +1.1% 12.50 USD 53,700
2011-12-12 2011-12-12 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
100 +0.0%
12.42
USD 1,242
100 +0.0% 12.42 USD 1,242
2011-12-12 2011-12-12 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
300 +0.1%
12.41
USD 3,723
300 +0.1% 12.41 USD 3,723
2011-12-12 2011-12-12 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
104 +0.0%
12.40
USD 1,290
104 +0.0% 12.40 USD 1,290
2011-12-12 2011-12-12 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
100 +0.0%
12.39
USD 1,239
100 +0.0% 12.39 USD 1,239
2011-12-12 2011-12-12 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
100 +0.0%
12.38
USD 1,238
100 +0.0% 12.38 USD 1,238
2011-12-12 2011-12-12 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
6 +0.0%
12.25
USD 74
6 +0.0% 12.25 USD 74
2011-11-28 2011-11-23 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
10,000 +2.6%
12.13
USD 121,314
10,000 +2.6% 12.13 USD 121,314
2011-09-23 2011-09-23 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
14,210 +3.8%
12.50
USD 177,625
14,210 +3.8% 12.50 USD 177,625
2011-09-23 2011-09-23 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
100 +0.0%
12.46
USD 1,246
100 +0.0% 12.46 USD 1,246
2011-09-23 2011-09-23 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
200 +0.1%
12.45
USD 2,490
200 +0.1% 12.45 USD 2,490
2011-09-23 2011-09-23 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
5,200 +1.4%
12.40
USD 64,480
5,200 +1.4% 12.40 USD 64,480
2011-09-23 2011-09-23 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
249 +0.1%
12.39
USD 3,085
249 +0.1% 12.39 USD 3,085
2011-09-23 2011-09-23 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
25 +0.0%
12.36
USD 309
25 +0.0% 12.36 USD 309
2011-09-23 2011-09-23 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
5,000 +1.4%
12.30
USD 61,500
5,000 +1.4% 12.30 USD 61,500
2011-09-23 2011-09-23 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
16 +0.0%
12.28
USD 196
16 +0.0% 12.28 USD 196
2011-09-23 2011-09-23 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
1,205 +0.3%
12.15
USD 14,641
1,205 +0.3% 12.15 USD 14,641
2011-09-22 2011-09-22 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
5,000 +1.4%
12.27
USD 61,350
5,000 +1.4% 12.27 USD 61,350
2011-09-22 2011-09-22 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
5,000 +1.4%
12.15
USD 60,750
5,000 +1.4% 12.15 USD 60,750
2011-09-22 2011-09-22 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
4,686 +1.3%
12.05
USD 56,466
4,686 +1.3% 12.05 USD 56,466
2011-09-22 2011-09-22 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
5,300 +1.5%
12.00
USD 63,600
5,300 +1.5% 12.00 USD 63,600
2011-09-22 2011-09-22 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
14 +0.0%
11.90
USD 167
14 +0.0% 11.90 USD 167
2011-09-21 2011-09-21 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
5,000 +1.5%
12.50
USD 62,500
5,000 +1.5% 12.50 USD 62,500
2011-09-19 2011-09-19 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
8,000 +2.4%
12.50
USD 100,000
8,000 +2.4% 12.50 USD 100,000
2011-09-19 2011-09-19 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
2,000 +0.6%
12.46
USD 24,920
2,000 +0.6% 12.46 USD 24,920
2011-09-19 2011-09-19 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
4,500 +1.4%
12.30
USD 55,350
4,500 +1.4% 12.30 USD 55,350
2011-09-19 2011-09-19 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
500 +0.2%
12.29
USD 6,145
500 +0.2% 12.29 USD 6,145
2011-09-09 2011-09-09 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
3,625 +1.1%
13.00
USD 47,125
3,625 +1.1% 13.00 USD 47,125
2011-09-09 2011-09-09 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
100 +0.0%
12.99
USD 1,299
100 +0.0% 12.99 USD 1,299
2011-09-09 2011-09-09 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
200 +0.1%
12.98
USD 2,596
200 +0.1% 12.98 USD 2,596
2011-09-09 2011-09-09 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
300 +0.1%
12.91
USD 3,873
300 +0.1% 12.91 USD 3,873
2011-09-09 2011-09-09 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
575 +0.2%
12.90
USD 7,418
575 +0.2% 12.90 USD 7,418
2011-09-09 2011-09-09 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
200 +0.1%
12.89
USD 2,579
200 +0.1% 12.89 USD 2,579
2011-09-06 2011-09-06 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
855 +0.3%
13.50
USD 11,543
855 +0.3% 13.50 USD 11,543
2011-08-22 2011-08-22 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
10,000 +3.3%
12.50
USD 125,000
10,000 +3.3% 12.50 USD 125,000
2011-08-19 2011-08-19 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
100 +0.0%
12.50
USD 1,250
100 +0.0% 12.50 USD 1,250
2011-08-10 2011-08-10 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
5,000 +1.7%
12.00
USD 60,000
5,000 +1.7% 12.00 USD 60,000
2011-08-09 2011-08-09 B Purchase

SIMMONS HAROLD C

Chairman of the Board & CEO

Executive Director Large shareholder
10,000 +3.4%
12.50
USD 125,000
10,000 +3.4% 12.50 USD 125,000
2011-02-07 2011-02-07 B Purchase

SIMMONS HAROLD C

Chairman of the Board and CEO

Executive Director Large shareholder
16,000 +1.5%
13.00
USD 208,000
16,000 +1.5% 13.00 USD 208,000
2011-01-28 2011-01-21 B Purchase

SIMMONS HAROLD C

Chairman of the Board and CEO

Executive Director Large shareholder
1,300 +0.1%
11.58
USD 15,054
1,300 +0.1% 11.58 USD 15,054
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