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United States Construction Materials

United States Lime & Minerals Inc (USLM)

Track

The most recent insider trading activity occurred on March 3, 2026, with a SELL transaction by Sandra C. Duhe. Prior to this, Timothy W. Byrne engaged in several large SELL and PROPOSED_SALE transactions in September 2025 and November 2024. Other notable SELL transactions include those by Nathan O'Neill in November 2024 and Richard W. Cardin in August 2024.
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Ticker: USLM Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Duhe Sandra C
1 sale — total 153,815 USD
Sale 3 Mar 2026
Value US$2,102,570.33 | Price 253.09 | Shares 8,885
Sale 4 Sep 2025
Value US$3,119,438.30 | Price 407.41 | Shares 79,333
Sale 4 Sep 2025
Value US$756,591.42 | Price 307.43 | Shares 85,089
Proposed sale 4 Sep 2025
Value US$1,445,943.00 | Price 119.50 | Shares 12,100
Sale 3 Sep 2025
Value US$172,734.38 | Price 124.18 | Shares 1,391
Sale 3 Sep 2025
Value US$3,146,989.92 | Price 120.88 | Shares 26,034
Proposed sale 3 Sep 2025
Value US$3,319,642.00 | Price 121.04 | Shares 27,425
Sale 24 Feb 2025
Value US$298,683.77 | Price 94.61 | Shares 3,157
Sale 20 Nov 2024
Value US$139,872.00 | Price 141.00 | Shares 992
Sale 20 Nov 2024
Value US$2,924,827.86 | Price 139.53 | Shares 20,962
Proposed sale 20 Nov 2024
Value US$3,064,688.00 | Price 139.60 | Shares 21,954
Sale 19 Nov 2024
Value US$3,155,051.53 | Price 141.73 | Shares 22,261
Proposed sale 19 Nov 2024
Value US$3,154,946.00 | Price 141.73 | Shares 22,261
Sale 12 Nov 2024
Value US$244,527.50 | Price 139.73 | Shares 1,750
Sale 22 Aug 2024
Value US$934,560.00 | Price 77.88 | Shares 12,000
Proposed sale 20 Aug 2024
Value US$931,800.00 | Price 77.65 | Shares 12,000
Sale 7 Jun 2024
Value US$66,064.00 | Price 330.32 | Shares 200
Sale 6 Jun 2024
Value US$8,388.50 | Price 335.54 | Shares 25
Sale 6 Jun 2024
Value US$202,033.44 | Price 330.12 | Shares 612
Sale 5 Jun 2024
Value US$200,771.10 | Price 340.29 | Shares 590
Sale 5 Jun 2024
Value US$161,602.00 | Price 339.50 | Shares 476
Sale 5 Jun 2024
Value US$67,246.08 | Price 337.92 | Shares 199
Sale 5 Jun 2024
Value US$492,357.00 | Price 337.00 | Shares 1,461
Sale 5 Jun 2024
Value US$1,565,742.14 | Price 335.78 | Shares 4,663
Proposed sale 5 Jun 2024
Value US$2,832,540.00 | Price 340.00 | Shares 8,331
Sale 14 Mar 2024
Value US$124,265.54 | Price 291.02 | Shares 427
Sale 15 Feb 2024
Value US$26,127.00 | Price 261.27 | Shares 100
Sale 15 Feb 2024
Value US$78,208.83 | Price 259.83 | Shares 301
Sale 15 Feb 2024
Value US$381,669.03 | Price 259.11 | Shares 1,473
Sale 14 Feb 2024
Value US$193,596.08 | Price 260.56 | Shares 743
Sale 14 Feb 2024
Value US$952,778.42 | Price 259.33 | Shares 3,674
Sale 14 Feb 2024
Value US$403,777.00 | Price 258.50 | Shares 1,562
Proposed sale 13 Feb 2024
Value US$2,002,515.00 | Price 255.00 | Shares 7,853
Buy 9 Nov 2023
Value US$40,000.00 | Price 200.00 | Shares 200
Buy 15 Sep 2023
Value US$47.01 | Price 213.66 | Shares 0
Buy 15 Sep 2023
Value US$120.54 | Price 204.30 | Shares 1
Sale 13 Sep 2023
Value US$106,977.64 | Price 206.92 | Shares 517
Sale 23 Aug 2023
Value US$283,260.36 | Price 215.08 | Shares 1,317
Sale 23 Aug 2023
Value US$15,379.31 | Price 216.61 | Shares 71
Sale 23 Aug 2023
Value US$24,202.08 | Price 216.09 | Shares 112
Sale 23 Aug 2023
Value US$51,381.82 | Price 215.89 | Shares 238
Sale 23 Aug 2023
Value US$273,390.96 | Price 214.93 | Shares 1,272
Sale 23 Aug 2023
Value US$146,523.96 | Price 215.16 | Shares 681
Sale 23 Aug 2023
Value US$225,994.56 | Price 214.01 | Shares 1,056
Sale 22 Aug 2023
Value US$7,076.42 | Price 208.13 | Shares 34
Sale 22 Aug 2023
Value US$43,054.55 | Price 204.05 | Shares 211
Sale 22 Aug 2023
Value US$1,659.88 | Price 207.49 | Shares 8
Proposed sale 22 Aug 2023
Value US$1,055,000.00 | Price 211.00 | Shares 5,000
Buy 16 Jun 2023
Value US$52.92 | Price 195.99 | Shares 0
Buy 16 Jun 2023
Value US$120.71 | Price 204.60 | Shares 1
Sale 23 May 2023
Value US$6,593.65 | Price 188.39 | Shares 35
Sale 23 May 2023
Value US$130,746.00 | Price 186.78 | Shares 700
Sale 22 May 2023
Value US$79,577.42 | Price 189.02 | Shares 421
Sale 22 May 2023
Value US$109,814.64 | Price 190.32 | Shares 577
Sale 22 May 2023
Value US$195,956.52 | Price 187.16 | Shares 1,047
Sale 22 May 2023
Value US$217,936.32 | Price 189.84 | Shares 1,148
Sale 22 May 2023
Value US$72,118.90 | Price 188.30 | Shares 383
Sale 19 May 2023
Value US$6,511.05 | Price 186.03 | Shares 35
Sale 19 May 2023
Value US$1,491.44 | Price 186.43 | Shares 8
Sale 19 May 2023
Value US$85,053.15 | Price 186.93 | Shares 455
Sale 19 May 2023
Value US$185,980.16 | Price 187.48 | Shares 992
Sale 19 May 2023
Value US$282,958.90 | Price 187.39 | Shares 1,510
Proposed sale 19 May 2023
Value US$1,413,600.00 | Price 186.00 | Shares 7,600
Sale 8 May 2023
Value US$66,032.00 | Price 165.08 | Shares 400
Sale 8 May 2023
Value US$50,655.00 | Price 168.85 | Shares 300
Buy 17 Mar 2023
Value US$53.83 | Price 153.79 | Shares 0
Buy 16 Dec 2022
Value US$27.76 | Price 146.11 | Shares 0
Sale 7 Dec 2022
Value US$74,000.00 | Price 148.00 | Shares 500
Sale 8 Nov 2022
Value US$125,343.23 | Price 130.43 | Shares 961
Sale 8 Nov 2022
Value US$26,341.05 | Price 131.05 | Shares 201
Sale 7 Nov 2022
Value US$287,169.48 | Price 128.43 | Shares 2,236
Sale 7 Nov 2022
Value US$15,516.00 | Price 129.30 | Shares 120
Sale 7 Nov 2022
Value US$26,152.00 | Price 130.76 | Shares 200
Sale 4 Nov 2022
Value US$52,432.00 | Price 131.08 | Shares 400
Buy 16 Sep 2022
Value US$27.49 | Price 105.74 | Shares 0
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
2026-03-04 2026-03-03 S Sale
2.6
Duhe Sandra C
Non-Executive Director
8,885 -33.7%
253.09
US$2,102,570 		8,885 -33.7% 253.09 US$2,102,570
2025-09-05 2025-09-04 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
79,333 +25.3%
407.41
US$3,119,438 		79,333 +25.3% 407.41 US$3,119,438
2025-09-05 2025-09-04 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
85,089 -21.4%
307.43
US$756,591 		85,089 -21.4% 307.43 US$756,591
2025-09-04 2025-09-04 PrS Proposed sale
3.1
BYRNE TIMOTHY W

Officer; Director

Executive Director
12,100
119.50
US$1,445,943 		12,100 119.50 US$1,445,943
2025-09-05 2025-09-03 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
1,391 -1.4%
124.18
US$172,734 		1,391 -1.4% 124.18 US$172,734
2025-09-05 2025-09-03 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
26,034 -20.7%
120.88
US$3,146,990 		26,034 -20.7% 120.88 US$3,146,990
2025-09-03 2025-09-03 PrS Proposed sale
3.1
BYRNE TIMOTHY W

Officer; Director

Executive Director
27,425
121.04
US$3,319,642 		27,425 121.04 US$3,319,642
2025-02-25 2025-02-24 S Sale
2.6
Duhe Sandra C
Non-Executive Director
3,157 -59.7%
94.61
US$298,684 		3,157 -59.7% 94.61 US$298,684
2024-11-21 2024-11-20 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
992 -1.0%
141.00
US$139,872 		992 -1.0% 141.00 US$139,872
2024-11-21 2024-11-20 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
20,962 -16.8%
139.53
US$2,924,828 		20,962 -16.8% 139.53 US$2,924,828
2024-11-20 2024-11-20 PrS Proposed sale
3.1
BYRNE TIMOTHY W

Officer; Director

Executive Director
21,954
139.60
US$3,064,688 		21,954 139.60 US$3,064,688
2024-11-21 2024-11-19 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
22,261 -15.1%
141.73
US$3,155,052 		22,261 -15.1% 141.73 US$3,155,052
2024-11-19 2024-11-19 PrS Proposed sale
3.1
BYRNE TIMOTHY W

Officer; Director

Executive Director
22,261
141.73
US$3,154,946 		22,261 141.73 US$3,154,946
2024-11-13 2024-11-12 S Sale
2.4
O'Neill Nathan

Vice President

Officer
1,750 -18.2%
139.73
US$244,528 		1,750 -18.2% 139.73 US$244,528
2024-08-26 2024-08-22 S Sale
1.6
CARDIN RICHARD W
Non-Executive Director
12,000 -45.6%
77.88
US$934,560 		12,000 -45.6% 77.88 US$934,560
2024-08-20 2024-08-20 PrS Proposed sale
1.6
CARDIN RICHARD W

Director

Non-Executive Director
12,000
77.65
US$931,800 		12,000 77.65 US$931,800
2024-06-07 2024-06-07 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
200 -0.7%
330.32
US$66,064 		200 -0.7% 330.32 US$66,064
2024-06-07 2024-06-06 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
25 -0.1%
335.54
US$8,388 		25 -0.1% 335.54 US$8,388
2024-06-07 2024-06-06 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
612 -2.0%
330.12
US$202,033 		612 -2.0% 330.12 US$202,033
2024-06-07 2024-06-05 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
590 -1.9%
340.29
US$200,771 		590 -1.9% 340.29 US$200,771
2024-06-07 2024-06-05 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
476 -1.5%
339.50
US$161,602 		476 -1.5% 339.50 US$161,602
2024-06-07 2024-06-05 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
199 -0.6%
337.92
US$67,246 		199 -0.6% 337.92 US$67,246
2024-06-07 2024-06-05 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
1,461 -4.4%
337.00
US$492,357 		1,461 -4.4% 337.00 US$492,357
2024-06-07 2024-06-05 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
4,663 -12.3%
335.78
US$1,565,742 		4,663 -12.3% 335.78 US$1,565,742
2024-06-05 2024-06-05 PrS Proposed sale
3.1
Timothy Byrne

Officer

Officer
8,331
340.00
US$2,832,540 		8,331 340.00 US$2,832,540
2024-03-14 2024-03-14 S Sale
2.6
Duhe Sandra C
Non-Executive Director
427 -48.3%
291.02
US$124,266 		427 -48.3% 291.02 US$124,266
2024-02-16 2024-02-15 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
100 -0.3%
261.27
US$26,127 		100 -0.3% 261.27 US$26,127
2024-02-16 2024-02-15 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
301 -1.0%
259.83
US$78,209 		301 -1.0% 259.83 US$78,209
2024-02-16 2024-02-15 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
1,473 -4.7%
259.11
US$381,669 		1,473 -4.7% 259.11 US$381,669
2024-02-16 2024-02-14 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
743 -2.3%
260.56
US$193,596 		743 -2.3% 260.56 US$193,596
2024-02-16 2024-02-14 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
3,674 -10.2%
259.33
US$952,778 		3,674 -10.2% 259.33 US$952,778
2024-02-16 2024-02-14 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
1,562 -4.2%
258.50
US$403,777 		1,562 -4.2% 258.50 US$403,777
2024-02-14 2024-02-13 PrS Proposed sale
3.1
Timothy Byrne

Officer

Officer
7,853
255.00
US$2,002,515 		7,853 255.00 US$2,002,515
2023-11-13 2023-11-09 B Purchase
3.2
Stone Timothy Wade

Vice President

Officer
200 +30.2%
200.00
US$40,000 		200 +30.2% 200.00 US$40,000
2023-11-13 2023-09-15 B Purchase
3.2
Stone Timothy Wade

Vice President

Officer
0 +0.0%
213.66
US$47 		0 +0.0% 213.66 US$47
2023-09-15 2023-09-15 B Purchase
2.6
Duhe Sandra C
Non-Executive Director
1 +0.1%
204.30
US$121 		1 +0.1% 204.30 US$121
2023-09-15 2023-09-13 S Sale
2.6
Duhe Sandra C
Non-Executive Director
517 -36.9%
206.92
US$106,978 		517 -36.9% 206.92 US$106,978
2023-08-23 2023-08-23 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
1,317 -4.7%
215.08
US$283,260 		1,317 -4.7% 215.08 US$283,260
2023-08-23 2023-08-23 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
71 -0.3%
216.61
US$15,379 		71 -0.3% 216.61 US$15,379
2023-08-23 2023-08-23 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
112 -0.4%
216.09
US$24,202 		112 -0.4% 216.09 US$24,202
2023-08-23 2023-08-23 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
238 -0.8%
215.89
US$51,382 		238 -0.8% 215.89 US$51,382
2023-08-23 2023-08-23 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
1,272 -4.3%
214.93
US$273,391 		1,272 -4.3% 214.93 US$273,391
2023-08-23 2023-08-23 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
681 -2.3%
215.16
US$146,524 		681 -2.3% 215.16 US$146,524
2023-08-23 2023-08-23 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
1,056 -3.4%
214.01
US$225,995 		1,056 -3.4% 214.01 US$225,995
2023-08-23 2023-08-22 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
34 -0.1%
208.13
US$7,076 		34 -0.1% 208.13 US$7,076
2023-08-23 2023-08-22 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
211 -0.7%
204.05
US$43,055 		211 -0.7% 204.05 US$43,055
2023-08-23 2023-08-22 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
8 -0.0%
207.49
US$1,660 		8 -0.0% 207.49 US$1,660
2023-08-22 2023-08-22 PrS Proposed sale
3.1
Timothy Byrne

Officer

Officer
5,000
211.00
US$1,055,000 		5,000 211.00 US$1,055,000
2023-11-13 2023-06-16 B Purchase
3.2
Stone Timothy Wade

Vice President

Officer
0 +0.0%
195.99
US$53 		0 +0.0% 195.99 US$53
2023-09-15 2023-06-16 B Purchase
2.6
Duhe Sandra C
Non-Executive Director
1 +0.0%
204.60
US$121 		1 +0.0% 204.60 US$121
2023-05-23 2023-05-23 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
35 -0.1%
188.39
US$6,594 		35 -0.1% 188.39 US$6,594
2023-05-23 2023-05-23 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
700 -2.2%
186.78
US$130,746 		700 -2.2% 186.78 US$130,746
2023-05-23 2023-05-22 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
421 -1.3%
189.02
US$79,577 		421 -1.3% 189.02 US$79,577
2023-05-23 2023-05-22 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
577 -1.7%
190.32
US$109,815 		577 -1.7% 190.32 US$109,815
2023-05-23 2023-05-22 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
1,047 -3.0%
187.16
US$195,957 		1,047 -3.0% 187.16 US$195,957
2023-05-23 2023-05-22 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
1,148 -3.2%
189.84
US$217,936 		1,148 -3.2% 189.84 US$217,936
2023-05-23 2023-05-22 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
383 -1.1%
188.30
US$72,119 		383 -1.1% 188.30 US$72,119
2023-05-23 2023-05-19 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
35 -0.1%
186.03
US$6,511 		35 -0.1% 186.03 US$6,511
2023-05-23 2023-05-19 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
8 -0.0%
186.43
US$1,491 		8 -0.0% 186.43 US$1,491
2023-05-23 2023-05-19 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
455 -1.2%
186.93
US$85,053 		455 -1.2% 186.93 US$85,053
2023-05-23 2023-05-19 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
992 -2.6%
187.48
US$185,980 		992 -2.6% 187.48 US$185,980
2023-05-23 2023-05-19 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
1,510 -3.9%
187.39
US$282,959 		1,510 -3.9% 187.39 US$282,959
2023-05-19 2023-05-19 PrS Proposed sale
3.1
Timothy Byrne

Officer

Officer
7,600
186.00
US$1,413,600 		7,600 186.00 US$1,413,600
2023-05-08 2023-05-08 S Sale
2.4
O'Neill Nathan

Vice President

Officer
400 -18.6%
165.08
US$66,032 		400 -18.6% 165.08 US$66,032
2023-05-08 2023-05-08 S Sale
2.4
O'Neill Nathan

Vice President

Officer
300 -12.2%
168.85
US$50,655 		300 -12.2% 168.85 US$50,655
2023-11-13 2023-03-17 B Purchase
3.2
Stone Timothy Wade

Vice President

Officer
0 +0.1%
153.79
US$54 		0 +0.1% 153.79 US$54
2023-11-13 2022-12-16 B Purchase
3.2
Stone Timothy Wade

Vice President

Officer
0 +0.0%
146.11
US$28 		0 +0.0% 146.11 US$28
2022-12-08 2022-12-07 S Sale
2.4
HUGHES BILL
Non-Executive Director
500 -1.9%
148.00
US$74,000 		500 -1.9% 148.00 US$74,000
2022-11-08 2022-11-08 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
961 -3.3%
130.43
US$125,343 		961 -3.3% 130.43 US$125,343
2022-11-08 2022-11-08 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
201 -0.7%
131.05
US$26,341 		201 -0.7% 131.05 US$26,341
2022-11-08 2022-11-07 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
2,236 -7.0%
128.43
US$287,169 		2,236 -7.0% 128.43 US$287,169
2022-11-08 2022-11-07 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
120 -0.4%
129.30
US$15,516 		120 -0.4% 129.30 US$15,516
2022-11-08 2022-11-07 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
200 -0.6%
130.76
US$26,152 		200 -0.6% 130.76 US$26,152
2022-11-08 2022-11-04 S Sale
3.1
BYRNE TIMOTHY W

President & CEO

Executive Director
400 -1.2%
131.08
US$52,432 		400 -1.2% 131.08 US$52,432
2023-11-13 2022-09-16 B Purchase
3.2
Stone Timothy Wade

Vice President

Officer
0 +0.0%
105.74
US$27 		0 +0.0% 105.74 US$27
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