United States Lime & Minerals, Inc. (USLM) Ownership
USLM ownership summary
as of October 18, 2026- Institutions
- 33.6% of shares outstanding
- Insiders
- 62.55% of shares outstanding
- Shares outstanding
- 28.7M
- Float
- 10.7M shares available to trade
- Short interest
- 10.50% 1.1M shares short
- Days to cover
- 7.73 short interest up 12.1% vs prior month
- Institutions 33.60%
- Insiders 62.55%
- Other investors 3.85%
USLM top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 5.81% | 1.7M | $176.7M | +802,890 (+93.0%) | June 30, 2026 |
| 2 | Dimensional Fund Advisors, Inc. | 2.65% | 760K | $80.6M | +12,209 (+1.6%) | June 30, 2026 |
| 3 | Renaissance Technologies Corp | 2.12% | 609K | $64.6M | −5,452 (−0.9%) | June 30, 2026 |
| 4 | First Trust Advisors L.P. | 1.70% | 488K | $51.8M | +46,350 (+10.5%) | June 30, 2026 |
| 5 | Vanguard Capital Management, LLC | 1.60% | 458K | $48.5M | +1,160 (+0.3%) | June 30, 2026 |
| 6 | Vanguard Portfolio Management, LLC | 1.48% | 424K | $45.0M | +93,877 (+28.4%) | June 30, 2026 |
| 7 | State Street Corp | 1.46% | 419K | $44.5M | +183,902 (+78.1%) | June 30, 2026 |
| 8 | Geode Capital Management, LLC | 1.33% | 383K | $40.6M | +28,553 (+8.1%) | June 30, 2026 |
| 9 | Select Equity Group LP | 1.33% | 381K | $40.4M | −25,111 (−6.2%) | June 30, 2026 |
| 10 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1.10% | 314K | $33.3M | +24,394 (+8.4%) | June 30, 2026 |
| 11 | Royce & Associates, LP | 0.77% | 221K | $23.4M | +129,591 (+142.5%) | June 30, 2026 |
| 12 | William Blair Investment Management, LLC | 0.59% | 170K | $18.0M | −116,375 (−40.7%) | June 30, 2026 |
| 13 | Amvescap Plc. | 0.45% | 130K | $13.8M | +6,730 (+5.4%) | June 30, 2026 |
| 14 | Millennium Management LLC | 0.43% | 123K | $13.1M | +92,969 (+307.4%) | June 30, 2026 |
| 15 | Northern Trust Corp | 0.41% | 117K | $12.5M | +1,086 (+0.9%) | June 30, 2026 |
| 16 | Morgan Stanley - Brokerage Accounts | 0.35% | 100K | $10.6M | +38,809 (+63.8%) | June 30, 2026 |
| 17 | Citadel Advisors Llc | 0.34% | 98K | $10.3M | +88,801 (+1,013.6%) | June 30, 2026 |
| 18 | Charles Schwab Investment Management Inc | 0.32% | 92K | $9.7M | +3,798 (+4.3%) | June 30, 2026 |
| 19 | Bank of New York Mellon Corp | 0.32% | 92K | $9.7M | +27,778 (+43.5%) | June 30, 2026 |
| 20 | Algert Global LLC | 0.29% | 82K | $8.7M | −4,571 (−5.3%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 16 holders added 1.6M shares and 4 cut 152K.
USLM top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 2.26% | 649K | $68.8M | +165 (+0.0%) | September 30, 2026 |
| 2 | First Trust SMID Cp Rising Div Achv ETF | 2.23% | 639K | $67.7M | — | September 30, 2026 |
| 3 | Global X US Infrastructure Dev ETF | 1.44% | 413K | $43.7M | +2,880 (+0.7%) | September 30, 2026 |
| 4 | Vanguard MStar Total Stk Mkt Idx Invest | 1.10% | 317K | $33.6M | — | August 31, 2026 |
| 5 | iShares Russell 2000 ETF | 0.99% | 283K | $30.0M | −3,264 (−1.1%) | September 30, 2026 |
| 6 | DFA US Micro Cap I | 0.82% | 235K | $24.9M | — | August 31, 2026 |
| 7 | T. Rowe Price Small-Cap Stock | 0.81% | 233K | $24.7M | +38,967 (+20.1%) | September 30, 2026 |
| 8 | DFA US Small Cap I | 0.46% | 133K | $14.1M | — | August 31, 2026 |
| 9 | T. Rowe Price Instl Small-Cap Stock | 0.44% | 125K | $13.3M | +19,115 (+18.0%) | September 30, 2026 |
| 10 | Fidelity Small Cap Index | 0.42% | 120K | $12.8M | +1,086 (+0.9%) | July 31, 2026 |
| 11 | iShares Russell 2000 Growth ETF | 0.36% | 103K | $11.0M | −131 (−0.1%) | September 30, 2026 |
| 12 | Dimensional US Small Cap ETF | 0.34% | 99K | $10.5M | — | September 30, 2026 |
| 13 | Vanguard Explorer Inv | 0.34% | 98K | $10.4M | −89,454 (−47.7%) | June 30, 2026 |
| 14 | State Street SPDR Port S&P 600 Sm CpETF | 0.34% | 98K | $10.4M | — | September 30, 2026 |
| 15 | Vanguard Strategic Equity Inv | 0.33% | 94K | $10.0M | +15,073 (+19.0%) | June 30, 2026 |
| 16 | Diamond Hill Small Cap Inv | 0.33% | 94K | $9.9M | +14,848 (+18.9%) | September 30, 2026 |
| 17 | Royce Premier Invmt | 0.27% | 77K | $8.2M | +15,661 (+25.5%) | September 30, 2026 |
| 18 | iShares S&P Small-Cap 600 Growth ETF | 0.25% | 72K | $7.6M | — | September 30, 2026 |
| 19 | Royce Small-Cap Trust | 0.25% | 71K | $7.5M | +22,241 (+45.9%) | September 30, 2026 |
| 20 | Invesco Building & Construction ETF | 0.24% | 69K | $7.3M | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
USLM insider transactions
latest 2| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-09-04 | Timothy W Byrne | Sell | $119.50 | 12,100 | $1.4M |
| 2025-09-03 | Timothy W Byrne | Sell | $121.05 | 27,425 | $3.3M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
USLM shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns USLM
Institutional investors own 33.6% of United States Lime & Minerals's shares and insiders 62.55%. The largest holder is BlackRock Inc with 5.81% of the shares (1.7M), as of June 30, 2026. Among the top 20 institutions, 16 added shares and 4 reduced their stake in the latest filings. Short interest is 10.50% of the float, or 7.73 days of average trading volume. The share count rose 2.8% since 2014.
Related: USLM analyst forecast, USLM key metrics, USLM dividend history. See the USLM stock overview for the latest quote and news.
USLM ownership FAQ
Who owns the most United States Lime & Minerals stock?
The largest shareholders of United States Lime & Minerals are BlackRock Inc (5.81%), Dimensional Fund Advisors, Inc. (2.65%), Renaissance Technologies Corp (2.12%), First Trust Advisors L.P. (1.70%), Vanguard Capital Management, LLC (1.60%).
What percentage of United States Lime & Minerals is owned by institutions?
Institutions hold 33.6% of United States Lime & Minerals's shares outstanding; insiders hold 62.55%.
Which funds own United States Lime & Minerals?
The largest fund holders of United States Lime & Minerals are iShares Core S&P Small-Cap ETF (2.26%), First Trust SMID Cp Rising Div Achv ETF (2.23%), Global X US Infrastructure Dev ETF (1.44%), Vanguard MStar Total Stk Mkt Idx Invest (1.10%), iShares Russell 2000 ETF (0.99%).
What is United States Lime & Minerals's short interest?
1.1M shares of United States Lime & Minerals were sold short, 10.50% of the float; at the average daily volume it would take 7.73 days to cover.
Are insiders buying or selling United States Lime & Minerals?
Of the latest 2 reported insider transactions in United States Lime & Minerals (since September 3, 2025), 0 were purchases and 2 were sales.
How many shares of United States Lime & Minerals are outstanding?
United States Lime & Minerals has 28.7M shares outstanding, of which 10.7M are in the public float.