Christopher Bloomstran — Semper AugustusSuperinvestor
About Christopher Bloomstran — Semper Augustus’s 13F portfolio
Christopher Bloomstran — Semper Augustus is an institutional investment manager that discloses its US-listed holdings each quarter through an SEC Form 13F filing. As of , Christopher Bloomstran — Semper Augustus reported $837.3M across 44 US-listed positions (). Its largest position is BERKSHIRE HATHAWAY INC DEL (BRK/B) at 14% of the reported book, and its ten biggest holdings make up 80% of the portfolio. Browse every manager in the fund managers directory, or see the legendary investors we track on the superinvestors page.
| # | Stock | Price | % of portfolio | Shares | Value |
|---|---|---|---|---|---|
| 1 |  BRK/B BERKSHIRE HATHAWAY INC DEL | — — | 14% | 253K | $121.2M |
| 2 |  BRK-A BERKSHIRE HATHAWAY INC DEL | — — | 9.9% | 116 | $83.3M |
| 3 |  DG DOLLAR GEN CORP | — — | 9.2% | 648K | $77.0M |
| 4 |  DECK DECKERS OUTDOOR CORP | — — | 7.9% | 661K | $66.2M |
| 5 |  ALK ALASKA AIR GROUP INC | — — | 7.4% | 1.7M | $62.3M |
| 6 |  OLN OLIN CORP | — — | 7.2% | 2.0M | $60.3M |
| 7 |  DLTR DOLLAR TREE INC | — — | 6.7% | 513K | $56.2M |
| 8 |  NEM NEWMONT CORP | — — | 6.2% | 479K | $51.9M |
| 9 |  KGC KINROSS GOLD CORP | — — | 5.5% | 1.5M | $46.1M |
| 10 |  FIVE FIVE BELOW INC | — — | 5.3% | 193K | $44.0M |
| 11 |  SBUX STARBUCKS CORP | — — | 2.7% | 251K | $22.5M |
| 12 |  DINO HF SINCLAIR CORP | — — | 2.7% | 361K | $22.5M |
| 13 |  CMI CUMMINS INC | — — | 2.5% | 40K | $21.3M |
| 14 |  BLDR BUILDERS FIRSTSOURCE INC | — — | 2.2% | 228K | $18.8M |
| 15 |  DIS DISNEY WALT CO | — — | 1.8% | 153K | $14.7M |
| 16 |  VLO VALERO ENERGY CORP | — — | 1.3% | 44K | $10.9M |
| 17 |  XOM EXXON MOBIL CORP | — — | 1.2% | 58K | $9.8M |
| 18 |  EQNR EQUINOR ASA | — — | 0.9% | 176K | $7.4M |
| 19 |  PSKY PARAMOUNT SKYDANCE CORP | — — | 0.7% | 653K | $5.9M |
| 20 |  TRV TRAVELERS COMPANIES INC | — — | 0.7% | 19K | $5.6M |
| 21 |  MRK MERCK & CO INC | — — | 0.6% | 45K | $5.4M |
| 22 |  COST COSTCO WHOLESALE CORPORATION | — — | 0.4% | 3K | $3.4M |
| 23 |  GE GE AEROSPACE | — — | 0.3% | 9K | $2.7M |
| 24 |  NXPI NXP SEMICONDUCTORS N V | — — | 0.3% | 13K | $2.6M |
| 25 |  GLDM WORLD GOLD TR | — — | 0.3% | 24K | $2.2M |
Showing 1–25 of 44 positions on this page reported in this 13F.
Tiles are sized by portfolio weight and coloured by sector; the “est.” figure on each tile is the estimated dividend- and split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
“Est. return” = estimated dividend/split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
- Basic Materials19%
- Consumer Defensive16%
- Consumer Cyclical16%
- Unclassified15%
- Industrials13%
- Financial Services11%
- Energy6.3%
- Communication Services2.6%
- Healthcare0.7%
- Technology0.5%
How this return is calculated
Estimated dividend- and split-adjusted return from the end of the first consecutive reported quarter in which the current holding appears in Bullish Whales’ 13F history, through the manager’s latest reported quarter. Current disclosed holdings only. Start dates differ by holding, changes in position size are not modeled, and positions no longer reported are excluded. Not the manager’s cost basis, purchase date, realized profit or loss, live performance, or portfolio performance.
- AddedBRK/BBERKSHIRE HATHAWAY INC DEL+1.5%$121.2M
- AddedDECKDECKERS OUTDOOR CORP+3.3%$66.2M
- AddedALKALASKA AIR GROUP INC+314%$62.3M
- AddedOLNOLIN CORP+4.4%$60.3M
- AddedDLTRDOLLAR TREE INC+0.2%$56.2M
- AddedSBUXSTARBUCKS CORP+4.1%$22.5M
- AddedDINOHF SINCLAIR CORP+0.6%$22.5M
- NewBLDRBUILDERS FIRSTSOURCE INC—$18.8M
- AddedDISDISNEY WALT CO+4.7%$14.7M
- AddedMRKMERCK & CO INC+0.4%$5.4M
- ReducedDGDOLLAR GEN CORP−30.0%$77.0M
- ReducedNEMNEWMONT CORP−27.8%$51.9M
- ReducedKGCKINROSS GOLD CORP−28.6%$46.1M
- ReducedFIVEFIVE BELOW INC−27.4%$44.0M
- ReducedCMICUMMINS INC−0.6%$21.3M
- ReducedVLOVALERO ENERGY CORP−77.8%$10.9M
- ReducedXOMEXXON MOBIL CORP−0.1%$9.8M
- ReducedEQNREQUINOR ASA−70.6%$7.4M
- ReducedPSKYPARAMOUNT SKYDANCE CORP−1.0%$5.9M
- ReducedCOSTCOSTCO WHOLESALE CORPORATION−2.3%$3.4M
Reading Christopher Bloomstran — Semper Augustus’s 13F portfolio
Christopher Bloomstran — Semper Augustus’s $837.3M 13F book is spread across 44 reported positions and is highly concentrated — its ten largest positions alone are 80% of the portfolio. A book this concentrated means a small group of names drives most of its performance. Its five largest positions are BRK/B, BRK-A, DG, DECK and ALK, led by BERKSHIRE HATHAWAY INC DEL (BRK/B) at 14% of the portfolio. The heaviest sector exposure is Basic Materials (19%), then Consumer Defensive (16%).
What Christopher Bloomstran — Semper Augustus changed last quarter
Between 2025-12-31 and Q1 2026, Christopher Bloomstran — Semper Augustus was roughly balanced between buying and selling: it opened 6 new positions and added to 10 more, while trimming 13 and closing 1 outright. Against a 44-name book, that is high turnover, pointing to an active reshuffle of the book. Its largest new or increased position was BERKSHIRE HATHAWAY INC DEL (BRK/B), and its biggest reduction was DOLLAR GEN CORP (DG).
What a 13F does and doesn’t reveal
A 13F captures only Christopher Bloomstran — Semper Augustus’s long positions in US-listed stocks at a single quarter-end, so it is best read as a lagged snapshot rather than a live portfolio. It won’t show shorts, cash, bonds, or holdings listed outside the US, and it never reveals the price paid or the reasoning behind a trade. The signal is in the pattern over time: which names Christopher Bloomstran — Semper Augustus is building up, trimming, or exiting, and how concentrated the book stays from quarter to quarter.
Frequently asked questions
What is an SEC 13F filing?
A Form 13F is a report that every institutional investment manager with at least $100 million in US-listed securities must file with the SEC within 45 days of each quarter's end. It lists the manager's long positions in US-listed stocks and certain options, with the share count and market value of each. Christopher Bloomstran — Semper Augustus's profile on this page is built directly from those filings.
How current is the 13F data on Christopher Bloomstran — Semper Augustus's page?
It reflects Christopher Bloomstran — Semper Augustus's most recently filed 13F, currently the quarter ending Q1 2026. Because managers have up to 45 days after a quarter closes to file, a 13F is always a slightly lagged view rather than a live portfolio. When Christopher Bloomstran — Semper Augustus files its next quarterly report, this page refreshes automatically.
Can I see Christopher Bloomstran — Semper Augustus's complete list of holdings?
This page highlights Christopher Bloomstran — Semper Augustus's largest positions rather than all 44 names in the filing. The complete, position-by-position 13F is public and available from the SEC's EDGAR database under Christopher Bloomstran — Semper Augustus's filings.
Does a 13F show everything Christopher Bloomstran — Semper Augustus owns?
No. A 13F only covers long positions in US-listed stocks and certain options. It leaves out short positions, cash, bonds, commodities, foreign-listed stocks, and private holdings, so it is a partial view of Christopher Bloomstran — Semper Augustus's book rather than its full strategy or total assets.
Is 13F data investment advice?
No. Everything here is educational. 13F positions are disclosed with a delay, cover only long US-listed holdings, and never explain why Christopher Bloomstran — Semper Augustus made a trade or at what price. Treat it as a research lens, not a recommendation, and speak with a licensed financial advisor before making investment decisions.
Not investment advice. Holdings data comes from public SEC Form 13F filings, which are filed with a delay of up to 45 days and may be amended later. It describes historical, disclosed positions in US-listed securities only, meaning no shorts, cash, or foreign holdings, and it is not a recommendation. Always do your own research and speak with a licensed financial advisor before making investment decisions.