Altar Rock LLC
Registered adviserRegulatory profile
From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.
| Rosters | Regulatory AUM | Main clients |
|---|---|---|
| Apr 2026 to Oct 2026 | $158,692,083 | Individuals and high net worth (99%) |
| Dec 2025 to Mar 2026 | $140,546,878 | Individuals and high net worth (99%) |
| Apr 2024 to Jun 2024 | $3,094,589 | Individuals and high net worth (100%) |
| Jul 2023 to Mar 2024 | $0 | — |
Portfolio style
Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.
Closest benchmark: every 13F filer's combined book, active share 69.0%; sector active share 46.2% against the combined 13F book's sector weights.
Over time 3 measured quarters
How the bands are measured
Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.
Clone Performance
Build a hypothetical price-return history from this filer's public 13F holdings.
View clone backtestPortfolio Concentration
77 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Portfolio Trend
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Unclassified | 58.7% | $40,180,509 |
| Technology | 16.8% | $11,495,534 |
| Financial Services | 8.5% | $5,845,274 |
| Communication Services | 3.9% | $2,684,181 |
| Consumer Cyclical | 3.8% | $2,632,629 |
| Industrials | 2.8% | $1,942,404 |
| Healthcare | 2.2% | $1,486,936 |
| Consumer Defensive | 1.3% | $865,290 |
| Real Estate | 1.1% | $736,640 |
| Energy | 0.5% | $311,584 |
| Basic Materials | 0.2% | $132,766 |
| Utilities | 0.2% | $119,563 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| — | +3,593 | 22,581 | $264,423 | ||
| AVLV | Avantis U.S. Large Cap Value ETF | +532 | 56,763 | $5,177,352 | |
| AVDE | Avantis International Equity ETF | +450 | 63,499 | $5,664,110 | |
| MFG | Mizuho Financial Group Inc | +418 | 11,875 | $113,762 | |
| NFLX | Netflix Inc | +415 | 4,343 | $310,090 | |
| AVUS | Avantis U.S. Equity ETF | +394 | 27,614 | $3,536,800 | |
| RHI | Robert Half Inc. | +365 | 9,554 | $293,307 | |
| SAN | Banco Santander, S.A. | +233 | 17,690 | $244,122 | |
| EWX | State Street(R) SPDR(R) S&P(R) Emerging Markets Small Cap ETF | +229 | 28,145 | $2,091,454 | |
| AVEM | Avantis Emerging Markets Equity ETF | +198 | 52,998 | $5,113,776 | |
| AVDV | Avantis International Small Cap Value ETF | +187 | 19,026 | $1,960,628 | |
| AVES | Avantis Emerging Markets Value ETF | +184 | 23,494 | $1,541,206 | |
| AVUV | Avantis U.S. Small Cap Value ETF | +159 | 31,470 | $3,926,196 | |
| DFAC | Dimensional U.S. Core Equity 2 ETF | +108 | 89,044 | $3,949,991 | |
| C | Citigroup Inc | +59 | 1,836 | $256,966 | |
| MA | Mastercard Inc | +20 | 474 | $243,446 | |
| SPTM | State Street(R) SPDR(R) Portfolio S&P 1500(R) Composite Stock Market ETF | +8 | 3,725 | $338,192 | |
| VEA | Vanguard FTSE Developed Markets ETF | +2 | 9,212 | $656,355 | |
| IJR | iShares Core S&P Small-Cap ETF | +1 | 1,729 | $256,427 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| TXG | 10x Genomics, Inc. | −10,041 | 10,546 | $404,333 | |
| KRC | Kilroy Realty Corp | −4,325 | 8,523 | $319,356 | |
| NVDA | Nvidia Corp | −3,921 | 10,971 | $2,195,187 | |
| SUB | iShares Short-Term National Muni Bond ETF | −3,642 | 14,961 | $1,592,897 | |
| FHB | First Hawaiian, Inc. | −2,881 | 6,863 | $201,085 | |
| AMG | Affiliated Managers Group, Inc. | −2,747 | 10,722 | $3,628,324 | |
| AAPL | Apple Inc. | −2,588 | 7,173 | $2,075,579 | |
| OHI | Omega Healthcare Investors Inc | −1,720 | 4,477 | $213,463 | |
| MNST | Monster Beverage Corp | −1,656 | 2,692 | $258,755 | |
| MSFT | Microsoft Corp | −1,412 | 3,234 | $1,206,346 | |
| XOM | ExxonMobil Holdings Corp | −1,371 | 2,279 | $311,584 | |
| ABNB | Airbnb, Inc. | −1,185 | 2,242 | $320,830 | |
| GOOG | Alphabet Inc. | −1,176 | 1,051 | $371,349 | |
| CSCO | Cisco Systems, Inc. | −1,060 | 1,855 | $217,888 | |
| TWLO | Twilio Inc | −977 | 997 | $205,711 | |
| LRCX | Lam Research Corp | −969 | 802 | $347,530 | |
| GOOGL | Alphabet Inc. | −963 | 3,823 | $1,366,225 | |
| AMZN | Amazon Com Inc | −941 | 4,500 | $1,072,530 | |
| JPM | Jpmorgan Chase & Co | −871 | 1,540 | $504,088 | |
| TSLA | Tesla, Inc. | −445 | 1,251 | $526,170 | |
| ESS | Essex Property Trust, Inc. | −421 | 699 | $203,821 | |
| META | Meta Platforms, Inc. | −395 | 1,130 | $636,517 | |
| ABBV | AbbVie Inc. | −392 | 854 | $214,900 | |
| AVGO | Broadcom Inc. | −371 | 2,058 | $777,409 | |
| BRK-B | Berkshire Hathaway Inc | −370 | 778 | $389,302 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| AMD | Advanced Micro Devices Inc | 697 | $404,894 | |
| APH | Amphenol Corp | 1,527 | $269,240 | |
| STX | Seagate Technology Holdings plc | 269 | $259,585 | |
| VAC | MARRIOTT VACATIONS WORLDWIDE Corp | 2,481 | $252,764 | |
| DAL | Delta Air Lines, Inc. | 2,592 | $242,766 | |
| MRVL | Marvell Technology, Inc. | 785 | $233,843 | |
| INTC | Intel Corp | 1,667 | $232,763 | |
| UAL | United Airlines Holdings, Inc. | 1,598 | $217,312 | |
| UMC | United Microelectronics Corp | 7,922 | $215,557 | |
| SNA | Snap-on Inc | 533 | $214,479 | |
| MAS | Masco Corp | 2,596 | $211,236 | |
| IVV | iShares Core S&P 500 ETF | 279 | $208,940 | |
| MAN | ManpowerGroup Inc. | 5,989 | $202,248 | |
| FBIN | Fortune Brands Innovations, Inc. | 3,644 | $200,055 | |
| XPEV | Xpeng Inc. | 14,797 | $195,912 | |
| PONY | Pony AI Inc. | 22,697 | $157,744 | |
| CAG | Conagra Brands Inc. | 11,505 | $154,857 | |
| ICL | ICL Group Ltd. | 26,660 | $132,766 | |
| HLN | Haleon plc | 14,175 | $132,252 | |
| ELPC | Energy Co Of Parana | 10,263 | $119,563 | |
| FLO | Flowers Foods Inc | 14,996 | $118,468 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| CVX | Chevron Corp | 2,140 | $442,766 | |
| INGR | Ingredion Inc | 3,762 | $423,826 | |
| TSN | Tyson Foods, Inc. | 5,758 | $368,915 | |
| RTX | RTX Corp | 1,907 | $367,860 | |
| HCA | HCA Healthcare, Inc. | 752 | $355,876 | |
| COST | Costco Wholesale Corp | 349 | $347,754 | |
| FIVE | Five Below, Inc | 1,494 | $341,349 | |
| MRK | Merck & Co., Inc. | 2,767 | $332,842 | |
| GS | Goldman Sachs Group Inc | 384 | $324,860 | |
| TNL | Travel & Leisure Co. | 4,602 | $318,412 | |
| CL | Colgate Palmolive Co | 3,582 | $305,293 | |
| CRUS | Cirrus Logic, Inc. | 2,095 | $302,978 | |
| LYB | LyondellBasell Industries N.V. | 3,677 | $296,219 | |
| ANET | Arista Networks, Inc. | 2,394 | $293,935 | |
| CRM | Salesforce, Inc. | 1,567 | $292,511 | |
| HWM | Howmet Aerospace Inc. | 1,239 | $285,539 | |
| WDC | Western Digital Corp | 1,049 | $283,744 | |
| CLH | Clean Harbors Inc | 988 | $283,289 | |
| MTCH | Match Group, Inc. | 9,222 | $283,207 | |
| GLPI | Gaming & Leisure Properties, Inc. | 6,276 | $278,466 | |
| ELAN | Elanco Animal Health Inc | 11,605 | $277,707 | |
| JBL | Jabil Inc | 1,044 | $277,317 | |
| ORLY | O Reilly Automotive Inc | 2,998 | $276,745 | |
| TGT | Target Corp | 2,283 | $276,699 | |
| TMUS | T-Mobile US, Inc. | 1,303 | $273,669 | |
| No positions match the current search. | ||||
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| AVDE |
Avantis International Equity ETF
|
Added | 63,499 | $5,664,110 | 8.28% | |
| AVLV |
Avantis U.S. Large Cap Value ETF
|
Added | 56,763 | $5,177,352 | 7.57% | |
| AVEM |
Avantis Emerging Markets Equity ETF
|
Added | 52,998 | $5,113,776 | 7.47% | |
| DFAC |
Dimensional U.S. Core Equity 2 ETF
|
Added | 89,044 | $3,949,991 | 5.77% | |
| AVUV |
Avantis U.S. Small Cap Value ETF
|
Added | 31,470 | $3,926,196 | 5.74% | |
| AMG |
Affiliated Managers Group, Inc.
Financial Services
|
Reduced | 10,722 | $3,628,324 | 5.30% | |
| AVUS |
Avantis U.S. Equity ETF
|
Added | 27,614 | $3,536,800 | 5.17% | |
| GLD |
Spdr Gold Trust
|
Held | 9,237 | $3,402,725 | 4.97% | |
| NVDA |
Nvidia Corp
Technology
|
Reduced | 10,971 | $2,195,187 | 3.21% | |
| EWX |
State Street(R) SPDR(R) S&P(R) Emerging Markets Small Cap ETF
|
Added | 28,145 | $2,091,454 | 3.06% | |
| AAPL |
Apple Inc.
Technology
|
Reduced | 7,173 | $2,075,579 | 3.03% | |
| AVDV |
Avantis International Small Cap Value ETF
|
Added | 19,026 | $1,960,628 | 2.87% | |
| SUB |
iShares Short-Term National Muni Bond ETF
|
Reduced | 14,961 | $1,592,897 | 2.33% | |
| AVES |
Avantis Emerging Markets Value ETF
|
Added | 23,494 | $1,541,206 | 2.25% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
Reduced | 3,823 | $1,366,225 | 2.00% | |
| MSFT |
Microsoft Corp
Technology
|
Reduced | 3,234 | $1,206,346 | 1.76% | |
| TSM |
Taiwan Semiconductor Manufacturing Co Ltd
Technology
|
Reduced | 2,420 | $1,155,719 | 1.69% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Reduced | 4,500 | $1,072,530 | 1.57% | |
| AVGO |
Broadcom Inc.
Technology
|
Reduced | 2,058 | $777,409 | 1.14% | |
| MU |
Micron Technology Inc
Technology
|
Reduced | 603 | $696,036 | 1.02% | |
| VEA |
Vanguard FTSE Developed Markets ETF
|
Added | 9,212 | $656,355 | 0.96% | |
| META |
Meta Platforms, Inc.
Communication Services
|
Reduced | 1,130 | $636,517 | 0.93% | |
| TSLA |
Tesla, Inc.
Consumer Cyclical
|
Reduced | 1,251 | $526,170 | 0.77% | |
| JPM |
Jpmorgan Chase & Co
Financial Services
|
Reduced | 1,540 | $504,088 | 0.74% | |
| LLY |
ELI LILLY & Co
Healthcare
|
Reduced | 419 | $502,561 | 0.73% | |
| AMAT |
Applied Materials Inc
Technology
|
Reduced | 659 | $476,457 | 0.70% | |
| MUB |
iShares National Muni Bond ETF
|
Held | 4,283 | $460,936 | 0.67% | |
| AMD |
Advanced Micro Devices Inc
Technology
|
NEW | 697 | $404,894 | 0.59% | |
| TXG |
10x Genomics, Inc.
Healthcare
|
Reduced | 10,546 | $404,333 | 0.59% | |
| BRK-B |
Berkshire Hathaway Inc
Financial Services
|
Reduced | 778 | $389,302 | 0.57% | |
| GOOG |
Alphabet Inc.
Communication Services
|
Reduced | 1,051 | $371,349 | 0.54% | |
| ASML |
Asml Holding NV
Technology
|
Held | 185 | $368,046 | 0.54% | |
| CAT |
Caterpillar Inc
Industrials
|
Reduced | 339 | $361,001 | 0.53% | |
| LRCX |
Lam Research Corp
Technology
|
Reduced | 802 | $347,530 | 0.51% | |
| SPTM |
State Street(R) SPDR(R) Portfolio S&P 1500(R) Composite Stock Market ETF
|
Added | 3,725 | $338,192 | 0.49% | |
| WMT |
Walmart Inc.
Consumer Defensive
|
Reduced | 2,942 | $333,210 | 0.49% | |
| ABNB |
Airbnb, Inc.
Consumer Cyclical
|
Reduced | 2,242 | $320,830 | 0.47% | |
| KRC |
Kilroy Realty Corp
Real Estate
|
Reduced | 8,523 | $319,356 | 0.47% | |
| XOM |
ExxonMobil Holdings Corp
Energy
|
Reduced | 2,279 | $311,584 | 0.46% | |
| NFLX |
Netflix Inc
Communication Services
|
Added | 4,343 | $310,090 | 0.45% | |
| BSV |
VANGUARD SHORT-TERM BOND INDEX FUND
|
Held | 3,883 | $302,524 | 0.44% | |
| RHI |
Robert Half Inc.
Industrials
|
Added | 9,554 | $293,307 | 0.43% | |
| APH |
Amphenol Corp
Technology
|
NEW | 1,527 | $269,240 | 0.39% | |
|
|
Added | 22,581 | $264,423 | 0.39% | ||
| V |
Visa Inc.
Financial Services
|
Reduced | 770 | $264,179 | 0.39% | |
| STX |
Seagate Technology Holdings plc
Technology
|
NEW | 269 | $259,585 | 0.38% | |
| MNST |
Monster Beverage Corp
Consumer Defensive
|
Reduced | 2,692 | $258,755 | 0.38% | |
| C |
Citigroup Inc
Financial Services
|
Added | 1,836 | $256,966 | 0.38% | |
| IJR |
iShares Core S&P Small-Cap ETF
|
Added | 1,729 | $256,427 | 0.37% | |
| VAC |
MARRIOTT VACATIONS WORLDWIDE Corp
Consumer Cyclical
|
NEW | 2,481 | $252,764 | 0.37% |
Showing the top 50 of 77 positions. Create a free account to see every position, past quarters, search, filters and CSV export.
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.