StockData
USLMNasdaqMining & Quarrying of Nonmetallic Minerals (No Fuels)Fiscal year ends December 31

UNITED STATES LIME & MINERALS INC

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Jul 30, 2026
$106.67+0.62 (+0.58%)

Close on Oct 19, 2026

Market cap
$3.07B
P/E (TTM)
22.8
Dividend yield
0.22%

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
32.6%
9M of 29M shares
Institutional holders
234
46 new, 45 sold out
Net institutional buying
1M
In Q2 2026
Insider trades, 12 months
1 buys · 2 sales
Net sold $153.81K

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
George Doumet3,530,75661.84%13D (active) amendmentMay 22, 2024
BlackRock, Inc.1,618,5875.60%13G (passive)Jun 30, 2026

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of USLMValueChange% of portfolio
BlackRock, Inc.1,666,0905.81%$174.39M+802,8900.00%
Dimensional Fund Advisors LP759,8492.65%$79.53M+12,2090.01%
Renaissance Technologies LLC609,0112.12%$63.75M−5,4520.09%
First Trust Advisors LP488,3011.70%$51.11M+46,3500.03%
Vanguard Capital Management LLC457,7331.60%$47.91M+1,1600.00%
Vanguard Portfolio Management LLC424,4771.48%$44.43M+93,8770.00%
State Street Corp419,4911.46%$43.91M+183,9020.00%
Geode Capital Management, LLC382,6361.33%$40.06M+28,5530.00%
Select Equity Group, L.P.380,5701.33%$39.83M−25,1110.20%
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.314,3261.10%$32.90M+24,3940.04%
Royce & Associates LP220,5630.77%$23.09M+129,5910.19%
William Blair Investment Management, LLC169,8850.59%$17.78M−116,3750.05%
Invesco Ltd.130,3190.45%$13.64M+6,7300.00%
Millennium Management LLC123,2150.43%$12.90M+92,9690.00%
Northern Trust Corp117,4710.41%$12.30M+1,0860.00%
Morgan Stanley99,6600.35%$10.43M+38,8090.00%
Citadel Advisors LLC97,5620.34%$10.21M+88,8010.00%
Charles Schwab Investment Management Inc91,8310.32%$9.61M+3,7980.00%
Bank of New York Mellon Corp91,6530.32%$9.59M+27,7780.00%
Algert Global LLC81,9200.29%$8.57M−4,5710.10%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 20262349M32.6%46 / 9366 / 452M2M
Q1 20262389M30.5%44 / 6986 / 242M1M
Q4 20252229M30.3%28 / 7871 / 241M1M
Q3 20252249M30.2%58 / 6866 / 221M1M
Q2 20251888M28.7%30 / 7257 / 381M1M
Q1 20251998M28.9%37 / 8156 / 421M1M
Q4 20242068M27.5%63 / 6263 / 111M1M
Q3 20241558M27.2%40 / 5442 / 122M1M
Q2 20241288M27.9%28 / 4437 / 111M1M
Q1 20241138M26.4%19 / 2447 / 101M1M
Q4 20231048M27.1%24 / 3132 / 50M0M
Q3 2023858M26.6%14 / 3423 / 70M0M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of USLMValue% of fundAs of
iShares Core S&P Small-Cap ETF638,0092.22%$66.78M0.06%Jun 30, 2026
First Trust SMID Cap Rising Dividend Achievers ETF423,2831.48%$44.31M0.39%Jun 30, 2026
Vanguard Total Stock Market Index Fund316,7891.10%$33.16M0.00%Jun 30, 2026
Global X U.S. Infrastructure Development ETF284,5330.99%$32.43M0.24%May 31, 2026
iShares Russell 2000 ETF284,4030.99%$29.77M0.04%Jun 30, 2026
U.S. Micro Cap Portfolio234,7870.82%$25.90M0.33%Jul 31, 2026
U.S. Small Cap Portfolio132,8550.46%$14.65M0.07%Jul 31, 2026
Vanguard Extended Market Index Fund120,9030.42%$12.65M0.01%Jun 30, 2026
Fidelity Small Cap Index Fund120,3870.42%$13.28M0.04%Jul 31, 2026
Invesco Building & Construction ETF112,7780.39%$12.44M2.90%Jul 31, 2026
iShares Russell 2000 Growth ETF101,9240.36%$10.67M0.07%Jun 30, 2026
Vanguard Explorer Fund98,2400.34%$10.84M0.05%Jul 31, 2026
Dimensional U.S. Small Cap ETF97,8940.34%$10.80M0.07%Jul 31, 2026
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF97,2390.34%$10.18M0.06%Jun 30, 2026
Vanguard Strategic Equity Fund94,3530.33%$9.88M0.08%Jun 30, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Timothy W. ByrnePresident & CEO, Director118,6490.41%Jan 2, 2026
Nathan O'NeillVice President7,7030.03%Feb 4, 2026
Michael L. WiedemerVice President6,3600.02%Feb 4, 2026
Timothy Wade StoneVice President4,8400.02%Feb 4, 2026
John J. GagnonVice President5,9410.02%Feb 4, 2026
Antoine M. DoumetDirector90,0000.31%Sep 11, 2026
Tom S. Hawkins JrDirector11,5360.04%May 5, 2026
Jon A. WolkensteinDirector4,1760.01%May 4, 2026
Richard W. CardinDirector17,0060.06%May 4, 2026
Sandra C. DuheDirector3,5270.01%May 4, 2026
Lila R. WeirichDirector4,1760.01%May 4, 2026
Holdings Ltd. Candou10% owner17,673,78061.61%Sep 11, 2026

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Antoine M. Doumet
Director
Sep 9, 2026Sale−20,000$110.00$2.20M90,000
Holdings Ltd. Candou
10% owner
Sep 9, 2026Buy+20,000$110.00$2.20M17,673,780
Tom S. Hawkins Jr
Director
May 1, 2026Award+1,273$110.00$140.03K11,356
Richard W. Cardin
Director
May 1, 2026Award+1,273$110.00$140.03K17,006
Jon A. Wolkenstein
Director
May 1, 2026Award+1,273$110.00$140.03K4,176
Sandra C. Duhe
Director
May 1, 2026Award+1,273$110.00$140.03K3,527
Lila R. Weirich
Director
May 1, 2026Award+1,273$110.00$140.03K4,176
Antoine M. Doumet
Director
Mar 17, 2026Option exercise+12,000$10.71$128.52K110,000
Sandra C. Duhe
Director
Mar 3, 2026Sale−1,277$120.45$153.81K2,254
Nathan O'Neill
Vice President
Feb 3, 2026Tax withholding−166$118.13$19.61K7,703
Michael L. Wiedemer
Vice President
Feb 3, 2026Tax withholding−165$118.13$19.49K6,360
Timothy Wade Stone
Vice President
Feb 3, 2026Tax withholding−136$118.13$16.07K4,840
John J. Gagnon
Vice President
Feb 3, 2026Tax withholding−123$118.13$14.53K5,941
Nathan O'Neill
Vice President
Feb 2, 2026Tax withholding−105$123.61$12.98K7,869
Nathan O'Neill
Vice President
Feb 2, 2026Award+426$123.61$52.66K8,129
Michael L. Wiedemer
Vice President
Feb 2, 2026Tax withholding−95$123.61$11.74K6,525
Michael L. Wiedemer
Vice President
Feb 2, 2026Award+426$123.61$52.66K6,786
Timothy Wade Stone
Vice President
Feb 2, 2026Award+336$123.61$41.53K5,176
Timothy Wade Stone
Vice President
Feb 2, 2026Tax withholding−100$123.61$12.36K4,976
John J. Gagnon
Vice President
Feb 2, 2026Tax withholding−75$123.61$9.27K6,064
John J. Gagnon
Vice President
Feb 2, 2026Award+210$123.61$25.96K6,151
Timothy W. Byrne
President & CEO, Director
Dec 31, 2025Award+47,500$119.74$5.69M114,741
Timothy W. Byrne
President & CEO, Director
Dec 31, 2025Tax withholding−18,691$119.74$2.24M67,241
Tom S. Hawkins Jr
Director
Dec 4, 2025Gift−100––10,083
Tom S. Hawkins Jr
Director
Dec 4, 2025Gift+100––180
Tom S. Hawkins Jr
Director
Dec 4, 2025Gift−80––10,183
Timothy W. Byrne
President & CEO, Director
Sep 5, 2025Gift−500$120.99$60.50K85,932
Timothy W. Byrne
President & CEO, Director
Sep 4, 2025Sale−11,504$119.43$1.37M87,208
Timothy W. Byrne
President & CEO, Director
Sep 4, 2025Sale−596$120.76$71.97K86,432
Timothy W. Byrne
President & CEO, Director
Sep 3, 2025Sale−26,034$120.88$3.15M99,923
Timothy W. Byrne
President & CEO, Director
Sep 3, 2025Sale−1,391$124.18$172.73K98,532
Tom S. Hawkins Jr
Director
May 2, 2025Award+1,403$99.81$140.03K10,263
Lila R. Weirich
Director
May 2, 2025Award+1,403$99.81$140.03K2,903
Sandra C. Duhe
Director
May 2, 2025Award+1,403$99.81$140.03K2,460
Richard W. Cardin
Director
May 2, 2025Award+1,403$99.81$140.03K15,733
Jon A. Wolkenstein
Director
May 2, 2025Award+1,403$99.81$140.03K2,903
Antoine M. Doumet
Director
Mar 3, 2025Option exercise+12,000$13.34$160.08K98,000
Sandra C. Duhe
Director
Feb 24, 2025Sale−3,157$94.61$298.68K2,128
Timothy Wade Stone
Vice President
Feb 6, 2025Gift−40––5,076
Timothy Wade Stone
Vice President
Feb 3, 2025Award+336$110.47$37.12K5,116
Timothy Wade Stone
Vice President
Feb 3, 2025Tax withholding−103$110.47$11.38K4,780
Nathan O'Neill
Vice President
Feb 3, 2025Tax withholding−124$110.47$13.70K7,548
Nathan O'Neill
Vice President
Feb 3, 2025Award+426$110.47$47.06K7,974
John J. Gagnon
Vice President
Feb 3, 2025Tax withholding−103$110.47$11.38K5,929
John J. Gagnon
Vice President
Feb 3, 2025Award+210$110.47$23.20K6,139
Michael L. Wiedemer
Vice President
Feb 3, 2025Award+426$110.47$47.06K6,620
Michael L. Wiedemer
Vice President
Feb 3, 2025Tax withholding−116$110.47$12.81K6,194
Timothy Wade Stone
Vice President
Feb 2, 2025Tax withholding−192$110.58$21.23K4,883
Nathan O'Neill
Vice President
Feb 2, 2025Tax withholding−208$110.58$23.00K7,672
John J. Gagnon
Vice President
Feb 2, 2025Tax withholding−178$110.58$19.68K6,032
Michael L. Wiedemer
Vice President
Feb 2, 2025Tax withholding−200$110.58$22.12K6,310
Timothy W. Byrne
President & CEO, Director
Dec 31, 2024Award+47,500$132.74$6.31M125,957
Timothy W. Byrne
President & CEO, Director
Dec 27, 2024Tax withholding−24,593$135.58$3.33M78,457
Tom S. Hawkins Jr
Director
Dec 10, 2024Gift−60––8,940
Tom S. Hawkins Jr
Director
Dec 10, 2024Gift+80––80
Tom S. Hawkins Jr
Director
Dec 10, 2024Gift−80––8,860
Timothy W. Byrne
President & CEO, Director
Nov 20, 2024Sale−992$141.00$139.87K103,050
Timothy W. Byrne
President & CEO, Director
Nov 20, 2024Sale−20,962$139.53$2.92M104,042
Timothy W. Byrne
President & CEO, Director
Nov 19, 2024Gift−450$141.59$63.72K147,265
Timothy W. Byrne
President & CEO, Director
Nov 19, 2024Sale−22,261$141.73$3.16M125,004

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.

Planned insider sales

Notices of proposed sale filed on Form 144 before shares are sold

SellerFiledSharesMarket valuePlanned saleAcquired through
Timothy W. Byrne
Officer, Director
Sep 4, 202512,100$1.45MSep 4, 2025OPTION EXERCISE
Timothy W. Byrne
Officer, Director
Sep 3, 202527,425$3.32MSep 3, 2025OPTION EXERCISE
Timothy W. Byrne
Officer, Director
Nov 20, 202421,954$3.06MNov 20, 2024OPTION EXERCISE
Timothy W. Byrne
Officer, Director
Nov 19, 202422,261$3.15MNov 19, 2024OPTION EXERCISE
Richard W. Cardin
Director
Aug 20, 202412,000$931.80KAug 20, 2024Stock Award
Byrne Timothy
Officer
Jun 5, 20248,331$2.83MJun 5, 2024stock based comp
Byrne Timothy
Officer
Feb 14, 20247,853$2.00MFeb 13, 2024stock based comp
Byrne Timothy
Officer
Aug 22, 20235,000$1.06MAug 22, 2023stock based comp
Byrne Timothy
Officer
May 19, 20237,600$1.41MMay 19, 2023Stock based compensation