Login
Super Investors Altar Rock LLC
AR

Altar Rock LLC

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

Portfolio value
$68.4M
Positions
77
Quarter ended
June 30, 2026
Filed
September 21, 2026

Reported portfolio value by quarter (3 quarters reported)

$85.2M $68.4M
Q4 25 Q1 26 Q2 26

$83.4M in Q4 2025 → $68.4M 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
AC American Centy ETF Tr 8.3% Added 0.7% 63,499 $5.66M
AC American Centy ETF Tr 7.6% Added 0.9% 56,763 $5.18M
AC American Centy ETF Tr 7.5% Added 0.4% 52,998 $5.11M
DE Dimensional ETF Trust 5.8% Added 0.1% 89,044 $3.95M
AC American Centy ETF Tr 5.7% Added 0.5% 31,470 $3.93M
Affiliated Managers Group 5.3% Trimmed 20% 10,722 $3.63M
AC American Centy ETF Tr 5.2% Added 1.4% 27,614 $3.54M
SG SPDR Gold Tr 5.0% Unchanged 9,237 $3.4M
Nvidia Corporation 3.2% Trimmed 26% 10,971 $2.2M
SI SPDR Index Shs Fds 3.1% Added 0.8% 28,145 $2.09M
Apple Inc 3.0% Trimmed 27% 7,173 $2.08M
AC American Centy ETF Tr 2.9% Added 1.0% 19,026 $1.96M
IT Ishares Tr 2.3% Trimmed 20% 14,961 $1.59M
AC American Centy ETF Tr 2.3% Added 0.8% 23,494 $1.54M
Alphabet Inc 2.0% Trimmed 20% 3,823 $1.37M
Microsoft Corp 1.8% Trimmed 30% 3,234 $1.21M
TS Taiwan Semiconductor Manufac 1.7% Trimmed 1.1% 2,420 $1.16M
Amazon Com Inc 1.6% Trimmed 17% 4,500 $1.07M
Broadcom Inc 1.1% Trimmed 15% 2,058 $777K
Micron Technology Inc 1.0% Trimmed 0.5% 603 $696K
VT Vanguard Tax-managed Fds 1.0% Added 0.0% 9,212 $656K
Meta Platforms Inc 0.9% Trimmed 26% 1,130 $637K
Tesla Inc 0.8% Trimmed 26% 1,251 $526K
Jpmorgan Chase & Co 0.7% Trimmed 36% 1,540 $504K
EL Eli Lilly & Co 0.7% Trimmed 2.3% 419 $503K
AM Applied Matls Inc 0.7% Trimmed 29% 659 $476K
IT Ishares Tr 0.7% Unchanged 4,283 $461K
Advanced Micro Devices Inc 0.6% New 697 $405K
10x Genomics Inc 0.6% Trimmed 49% 10,546 $404K
BH Berkshire Hathaway Inc Del 0.6% Trimmed 32% 778 $389K
Alphabet Inc 0.5% Trimmed 53% 1,051 $371K
AH Asml Hldg Nv 0.5% Unchanged 185 $368K
Caterpillar Inc 0.5% Trimmed 4.5% 339 $361K
Lam Research Corp 0.5% Trimmed 55% 802 $348K
SS SPDR Series Trust 0.5% Added 0.2% 3,725 $338K
Walmart Inc 0.5% Trimmed 7.5% 2,942 $333K
Kilroy Realty Corp 0.5% Trimmed 34% 8,523 $324K
Airbnb Inc 0.5% Trimmed 35% 2,242 $321K
Exxon Mobil Corp 0.5% Trimmed 38% 2,279 $312K
Netflix Inc. 0.5% Added 11% 4,343 $310K
VB Vanguard Bd Index Fds 0.4% Unchanged 3,883 $303K
Robert Half Inc. 0.4% Added 4.0% 9,554 $293K
Amphenol Corp 0.4% New 1,527 $270K
Leggett & Platt Inc 0.4% Added 19% 22,581 $265K
Visa Inc 0.4% Trimmed 24% 770 $264K
ST Seagate Technology Hldngs Pl 0.4% New 269 $260K
MB Monster Beverage Corp New 0.4% Trimmed 38% 2,692 $259K
Citigroup Inc 0.4% Added 3.3% 1,836 $257K
IT Ishares Tr 0.4% Added 0.1% 1,729 $256K
Marriott Vacations Worldwide 0.4% New 2,481 $253K
Banco Santander Sa 0.4% Added 1.3% 17,690 $244K
Mastercard Incorporated 0.4% Added 4.4% 474 $243K
Delta Air Lines Inc 0.4% New 2,592 $243K
Marvell Technology Inc 0.3% New 785 $234K
Johnson & Johnson 0.3% Trimmed 14% 917 $233K
Intel Corp 0.3% New 1,667 $233K
CS Cisco Sys Inc 0.3% Trimmed 36% 1,855 $218K
UA United Airls Hldgs Inc 0.3% New 1,598 $217K
United Microelectronics Corp 0.3% New 7,922 $216K
Abbvie Inc 0.3% Trimmed 31% 854 $215K

Showing top 60 of 77 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 2 quarters.

Q2 2026

quarter ended June 30, 2026 · filed September 21, 2026

Company Action Shares changed Value of change % of portfolio
Affiliated Managers Group Trimmed −2,747 −$930K 5.3%
Nvidia Corporation Trimmed −3,921 −$785K 3.2%
Apple Inc Trimmed −2,588 −$749K 3.0%
Microsoft Corp Trimmed −1,412 −$527K 1.8%
Chevron Corporation Exited −2,140 −$443K —
Ingredion Inc Exited −3,762 −$424K —
Lam Research Corp Trimmed −969 −$420K 0.5%
Alphabet Inc Trimmed −1,176 −$416K 0.5%
Advanced Micro Devices Inc New +697 +$405K 0.6%
IT Ishares Tr Trimmed −3,642 −$388K 2.3%

Showing the 10 largest of 161 changes.

Q1 2026

quarter ended March 31, 2026 · filed September 21, 2026

Company Action Shares changed Value of change % of portfolio
IT Ishares Tr New +18,603 +$1.98M 2.3%
Affiliated Managers Group Trimmed −2,073 −$574K 4.4%
Adobe Inc Exited −1,053 −$369K —
Home Depot Inc Exited −1,022 −$352K —
AD Automatic Data Processing In Exited −1,283 −$332K —
Genpact Limited Exited −6,435 −$301K —
AP Accenture PLC Ireland Exited −1,116 −$299K —
AL Abbott Labs Exited −2,365 −$296K —
GA Ge Aerospace Exited −954 −$294K —
MG Match Group Inc New New +9,222 +$283K 0.3%

Showing the 10 largest of 175 changes.

Create Account

Sign up for free to unlock this feature.

Already have an account? Sign in

Premium Feature

This feature requires a premium subscription to unlock unlimited historical data and advanced analysis tools.

Premium includes:

  • Unlimited historical financial data
  • Advanced analytics and insights
  • Priority support