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Super Investors Quantum Capital Management, LLC / NJ
QC

Quantum Capital Management, LLC / NJ

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$798M
Positions
35
Quarter ended
June 30, 2026
Filed
August 11, 2026

Reported portfolio value by quarter (53 quarters reported)

$967M $194M
Q2 13 Q1 16 Q4 18 Q3 21 Q2 24 Q2 26

$194M in Q2 2013 → $798M now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
HN Heico Corp New 8.9% Added 17% 273,833 $70.6M
Nvr Inc 8.3% Added 0.5% 9,691 $66M
Primerica Inc 7.7% Trimmed 14% 214,890 $61.1M
Graco Inc 7.3% Added 55% 768,421 $58.1M
Brown & Brown Inc 7.3% Added 41% 903,253 $57.9M
MM Martin Marietta Matls Inc 6.8% Added 3.7% 93,716 $54M
VS Veeva Sys Inc 6.1% Trimmed 14% 272,384 $48.3M
Msci Inc 6.0% Trimmed 21% 86,120 $48.2M
Fastenal Co 5.8% Added 1.0% 962,833 $46.2M
M Moodys Corp 5.7% Added 1.1% 100,778 $45.6M
IL Idexx Labs Inc 5.5% Added 49% 83,634 $44M
OD Old Dominion Freight Line In 4.8% Trimmed 53% 174,902 $37.9M
Tyler Technologies Inc 3.9% Trimmed 12% 106,217 $31.1M
Gartner Inc 2.4% Added 53% 150,315 $19.5M
Booking Holdings Inc 2.3% Added 1517% 101,720 $18.1M
Copart Inc 1.9% Added 1.4% 531,279 $15M
SG SPDR Gold Tr 1.3% Trimmed 1.5% 28,768 $10.6M
VI Vanguard Intl Equity Index F 1.2% Trimmed 1.4% 117,604 $9.85M
VM Vulcan Matls Co 1.0% Added 1.2% 26,837 $7.92M
VI Vanguard Intl Equity Index F 0.9% Trimmed 1.4% 47,826 $7.38M
Pool Corp 0.9% New 32,699 $7.03M
BH Berkshire Hathaway Inc Del 0.8% Trimmed 1.5% 12,426 $6.22M
VW Vanguard Whitehall Fds 0.8% Trimmed 1.4% 62,638 $6.15M
VI Vanguard Index Fds 0.7% New 8,547 $5.87M
VW Vanguard Whitehall Fds 0.7% Added 61% 34,318 $5.42M
SS Schwab Strategic Tr 0.6% New 152,398 $4.83M
VS Vanguard Scottsdale Fds 0.4% Trimmed 1.4% 8,578 $2.91M
Stepan Co 0.0% Unchanged 5,010 $279K
SS Schwab Strategic Tr 0.0% Added 3.1% 11,763 $272K
IT Ishares Tr 0.0% Added 48% 2,385 $240K
IT Ishares Tr 0.0% Added 1.4% 2,107 $220K
SS Schwab Strategic Tr 0.0% Added 2.4% 7,593 $220K
SS Schwab Strategic Tr 0.0% Added 2.5% 7,108 $197K
VI Vanguard Index Fds 0.0% Unchanged 706 $60.4K
VS Vanguard Star Fds 0.0% Unchanged 141 $52.2K

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 11, 2026

Company Action Shares changed Value of change % of portfolio
OD Old Dominion Freight Line In Trimmed −201,070 −$43.6M 4.8%
Graco Inc Added +272,918 +$20.6M 7.3%
Booking Holdings Inc Added +95,429 +$17M 2.3%
Brown & Brown Inc Added +261,640 +$16.8M 7.3%
IL Idexx Labs Inc Added +27,426 +$14.4M 5.5%
Msci Inc Trimmed −23,360 −$13.1M 6.0%
Primerica Inc Trimmed −36,011 −$10.2M 7.7%
HN Heico Corp New Added +39,123 +$10.1M 8.9%
VS Veeva Sys Inc Trimmed −44,819 −$7.95M 6.1%
Pool Corp New +32,699 +$7.03M 0.9%

Showing the 10 largest of 34 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 13, 2026

Company Action Shares changed Value of change % of portfolio
MM Martin Marietta Matls Inc New +90,394 +$53.2M 6.8%
OD Old Dominion Freight Line In Trimmed −233,965 −$45.7M 9.4%
Copart Inc Trimmed −894,975 −$29.7M 2.2%
LS Landstar Sys Inc Exited −194,673 −$28M —
Tyler Technologies Inc Added +47,471 +$16.3M 5.3%
Gartner Inc New +98,557 +$15.6M 2.0%
Costar Group Inc Exited −218,583 −$14.7M —
HN Heico Corp New Trimmed −58,979 −$12.4M 6.3%
Msci Inc Added +21,995 +$11.9M 7.6%
IL Idexx Labs Inc Trimmed −20,238 −$11.4M 4.0%

Showing the 10 largest of 35 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 13, 2026

Company Action Shares changed Value of change % of portfolio
Brown & Brown Inc Added +388,059 +$30.9M 6.0%
Costar Group Inc Trimmed −184,312 −$12.4M 1.7%
LS Landstar Sys Inc Trimmed −66,205 −$9.51M 3.2%
Copart Inc Trimmed −207,715 −$8.13M 6.4%
Appfolio Inc New +34,366 +$8M 0.9%
DS Descartes Sys Group Inc Trimmed −83,107 −$7.29M 0.3%
Msci Inc Trimmed −10,583 −$6.07M 5.8%
Primerica Inc Added +20,810 +$5.38M 7.6%
Fair Isaac Corp Exited −2,642 −$3.95M —
VI Vanguard Intl Equity Index F Added +45,900 +$3.38M 1.0%

Showing the 10 largest of 32 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 13, 2025

Company Action Shares changed Value of change % of portfolio
OD Old Dominion Freight Line In Added +123,271 +$17.4M 9.2%
IL Idexx Labs Inc Trimmed −26,602 −$17M 5.5%
Brown & Brown Inc Added +164,519 +$15.4M 2.7%
Nvr Inc Trimmed −1,631 −$13.1M 7.8%
Copart Inc Added +252,961 +$11.4M 8.0%
HN Heico Corp New Trimmed −33,633 −$8.55M 8.3%
LS Landstar Sys Inc Trimmed −61,397 −$7.52M 3.5%
Msci Inc Trimmed −10,801 −$6.13M 6.1%
VI Vanguard Intl Equity Index F Added +11,531 +$1.64M 0.8%
VS Veeva Sys Inc Trimmed −1,272 −$379K 9.3%

Showing the 10 largest of 31 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 14, 2025

Company Action Shares changed Value of change % of portfolio
VS Veeva Sys Inc Trimmed −110,303 −$31.8M 8.9%
Booking Holdings Inc Trimmed −3,946 −$22.8M 4.6%
Msci Inc Added +36,975 +$21.3M 6.8%
LS Landstar Sys Inc Added +97,974 +$13.6M 4.8%
Costar Group Inc Trimmed −124,241 −$9.99M 3.5%
HN Heico Corp New Trimmed −37,370 −$9.67M 9.3%
M Moodys Corp Added +18,659 +$9.36M 4.7%
Fastenal Co Added +221,844 +$9.32M 4.5%
Graco Inc Trimmed −105,782 −$9.09M 4.8%
OD Old Dominion Freight Line In Trimmed −54,244 −$8.8M 8.3%

Showing the 10 largest of 33 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 14, 2025

Company Action Shares changed Value of change % of portfolio
Nvr Inc Added +3,965 +$28.7M 7.9%
IL Idexx Labs Inc Added +61,684 +$25.9M 5.1%
Booking Holdings Inc Trimmed −3,245 −$14.9M 5.4%
Tyler Technologies Inc Trimmed −22,672 −$13.2M 5.0%
Copart Inc Added +173,747 +$9.83M 9.0%
HN Heico Corp New Added +36,198 +$7.64M 8.1%
Msci Inc Trimmed −7,055 −$3.99M 4.2%
SS Schwab Strategic Tr Trimmed −191,705 −$3.79M —
LS Landstar Sys Inc Trimmed −21,886 −$3.29M 3.5%
VI Vanguard Intl Equity Index F New +53,903 +$3.27M 0.3%

Showing the 10 largest of 30 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 12, 2025

Company Action Shares changed Value of change % of portfolio
Booking Holdings Inc Trimmed −4,599 −$22.8M 7.7%
DS Descartes Sys Group Inc New +131,701 +$15M 1.6%
CA Credit Accep Corp Mich Exited −20,217 −$8.96M —
SS Schwab Strategic Tr Added +100,219 +$1.85M 0.4%
OD Old Dominion Freight Line In Added +9,759 +$1.72M 10.1%
SI Selective Ins Group Inc Exited −8,368 −$781K —
VS Veeva Sys Inc Added +1,020 +$214K 9.3%
Copart Inc Added +3,231 +$185K 8.3%
Primerica Inc Added +632 +$172K 7.7%
Nvr Inc Added +18 +$147K 5.8%

Showing the 10 largest of 31 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 13, 2024

Company Action Shares changed Value of change % of portfolio
M Moodys Corp Trimmed −78,734 −$37.4M 3.4%
CA Credit Accep Corp Mich Trimmed −58,883 −$26.1M 0.9%
Booking Holdings Inc Added +5,643 +$23.8M 8.3%
VS Veeva Sys Inc Trimmed −73,709 −$15.5M 8.9%
Copart Inc Added +291,950 +$15.3M 7.3%
Graco Inc Added +142,575 +$12.5M 5.7%
IL Idexx Labs Inc Added +18,305 +$9.25M 2.9%
Msci Inc Added +6,309 +$3.68M 4.8%
Costar Group Inc Trimmed −30,700 −$2.32M 4.2%
OD Old Dominion Freight Line In Added +4,338 +$862K 10.8%

Showing the 10 largest of 30 changes.

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