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Christopher Bloomstran

Semper Augustus Investments Group

Semper Augustus, Christopher Bloomstran's Berkshire-style value research

Semper Augustus is valuable because Christopher Bloomstran publishes detailed research, especially on Berkshire Hathaway, valuation, and long-term capital allocation. The portfolio can be read as a quality-value book with a strong emphasis on business analysis.

Sources Semper Augustus Investments Group official site SEC EDGAR profile Christopher P. Bloomstran Semper Augustus profile
Value / Berkshire-style capital allocation CIK 1115373
2026-03-31 Latest 13F 20 Current holdings 45 Last 2 periods Change 0 Public materials
Latest 13F snapshot 2026-03-31 · 44 disclosed positions · $837.3M Top five 49.0%: BRK.B, BRK.A, DG, DECK, ALK

Performance materials

  • Semper Augustus publishes letters and materials that provide performance and process context.

Firm and key people

  • Bloomstran leads Semper Augustus and is known for detailed letters and Berkshire analysis.
  • The firm emphasizes business quality, valuation, and long-term compounding.
  • Public letters provide context for holdings and broader market views.

Investment style

  • Combine valuation discipline with deep business analysis.
  • Use long-form letters to understand opportunity cost and risk.
  • Berkshire-related thinking informs the broader quality-value framework.

Public materials

View timeline
Shareholder letters / memos 0
Interview 0
Public video 0
Public Q&A / speeches / presentations 0

Current holdings

13F period 2026-03-31 · Filed 2026-05-15
Stocks Shares Value Weight
BRK.B 253,025 $121.2M 14.5%
BRK.A 116 $83.3M 9.9%
DG 648,227 $77.0M 9.2%
DECK 661,029 $66.2M 7.9%
ALK 1,695,062 $62.3M 7.4%
OLN 2,029,319 $60.3M 7.2%
DLTR 513,485 $56.2M 6.7%
NEM 479,138 $51.9M 6.2%
KGC 1,508,941 $46.1M 5.5%
FIVE 192,666 $44.0M 5.3%
SBUX 251,300 $22.5M 2.7%
DINO 360,678 $22.5M 2.7%
CMI 39,530 $21.3M 2.5%
BLDR 228,210 $18.8M 2.2%
DIS 152,583 $14.7M 1.8%
VLO 44,056 $10.9M 1.3%
XOM 57,517 $9.8M 1.2%
EQNR 175,954 $7.4M 0.9%
PSKY 652,707 $5.9M 0.7%
TRV 19,100 $5.6M 0.7%

Last 2 quarters US 13F new / increased / reduced / sold-out positions

As of 13F 2026-03-31 · Filed 2026-05-15
Last 1 quarters Last 2 quarters Last 3 quarters Last 4 quarters
Stocks Action 13F period Current shares Previous shares Share change 13F value change
DG Major reduction 2026-03-31 Filed 2026-05-15 648,227 925,955 -30.0% -$46.0M
ALK Major increase 2026-03-31 Filed 2026-05-15 1,695,062 409,282 314.2% +$41.8M
VLO Major reduction 2026-03-31 Filed 2026-05-15 44,056 198,658 -77.8% -$21.5M
OLN Minor increase 2026-03-31 Filed 2026-05-15 2,029,319 1,943,440 4.4% +$19.8M
BLDR New 2026-03-31 Filed 2026-05-15 228,210 0 - +$18.8M
NEM Major reduction 2026-03-31 Filed 2026-05-15 479,138 663,239 -27.8% -$14.4M
KGC Major reduction 2026-03-31 Filed 2026-05-15 1,508,941 2,112,933 -28.6% -$13.4M
DLTR Minor increase 2026-03-31 Filed 2026-05-15 513,485 512,660 0.2% -$6.8M
EQNR Major reduction 2026-03-31 Filed 2026-05-15 175,954 598,385 -70.6% -$6.7M
DINO Minor increase 2026-03-31 Filed 2026-05-15 360,678 358,527 0.6% +$6.0M
FIVE Major reduction 2026-03-31 Filed 2026-05-15 192,666 265,234 -27.4% -$5.9M
BRK.B Minor increase 2026-03-31 Filed 2026-05-15 253,025 249,211 1.5% -$4.0M
PSKY Minor reduction 2026-03-31 Filed 2026-05-15 652,707 659,061 -1.0% -$2.9M
XOM Minor reduction 2026-03-31 Filed 2026-05-15 57,517 57,556 -0.1% +$2.8M
SBUX Minor increase 2026-03-31 Filed 2026-05-15 251,300 241,470 4.1% +$2.2M
DIS Minor increase 2026-03-31 Filed 2026-05-15 152,583 145,782 4.7% -$1.9M
CMI Minor reduction 2026-03-31 Filed 2026-05-15 39,530 39,774 -0.6% +$965,293
MRK Minor increase 2026-03-31 Filed 2026-05-15 44,633 44,443 0.4% +$690,834
SGOV Major increase 2026-03-31 Filed 2026-05-15 9,916 3,541 180.0% +$642,699
COST Minor reduction 2026-03-31 Filed 2026-05-15 3,367 3,447 -2.3% +$382,494
CVX Minor reduction 2026-03-31 Filed 2026-05-15 6,063 6,389 -5.1% +$280,688
AXP Minor reduction 2026-03-31 Filed 2026-05-15 3,436 3,441 -0.1% -$233,677
DECK Minor increase 2026-03-31 Filed 2026-05-15 661,029 639,698 3.3% -$155,099
DECK Major increase 2025-12-31 Filed 2026-02-17 639,698 374,841 70.7% +$28.3M
DG Minor increase 2025-12-31 Filed 2026-02-17 925,955 925,826 0.0% +$27.3M
DLTR Minor increase 2025-12-31 Filed 2026-02-17 512,660 505,157 1.5% +$15.4M
NEM Minor reduction 2025-12-31 Filed 2026-02-17 663,239 678,207 -2.2% +$9.0M
OLN Minor increase 2025-12-31 Filed 2026-02-17 1,943,440 1,924,245 1.0% -$7.6M
KGC Major reduction 2025-12-31 Filed 2026-02-17 2,112,933 2,589,755 -18.4% -$4.9M
PSKY Minor reduction 2025-12-31 Filed 2026-02-17 659,061 659,284 -0.0% -$3.6M
CMI Minor reduction 2025-12-31 Filed 2026-02-17 39,774 39,936 -0.4% +$3.4M
FIVE Minor reduction 2025-12-31 Filed 2026-02-17 265,234 308,341 -14.0% +$2.3M
DINO Minor increase 2025-12-31 Filed 2026-02-17 358,527 356,712 0.5% -$2.1M
ALK Minor increase 2025-12-31 Filed 2026-02-17 409,282 378,591 8.1% +$1.7M
VLO Minor reduction 2025-12-31 Filed 2026-02-17 198,658 199,527 -0.4% -$1.6M
GEV Major reduction 2025-12-31 Filed 2026-02-17 1,994 3,436 -42.0% -$809,577
BRK.B Minor reduction 2025-12-31 Filed 2026-02-17 249,211 250,239 -0.4% -$539,246
GLDM Major increase 2025-12-31 Filed 2026-02-17 23,979 19,864 20.7% +$528,484
XOM Minor reduction 2025-12-31 Filed 2026-02-17 57,556 57,840 -0.5% +$404,829
COST Minor increase 2025-12-31 Filed 2026-02-17 3,447 3,435 0.3% -$207,053
EQNR Minor increase 2025-12-31 Filed 2026-02-17 598,385 573,731 4.3% +$152,276
SMHI Minor reduction 2025-12-31 Filed 2026-02-17 208,175 211,480 -1.6% -$119,291
SBUX Minor increase 2025-12-31 Filed 2026-02-17 241,470 238,961 1.1% +$118,086
AXP Major reduction 2025-12-31 Filed 2026-02-17 3,441 4,106 -16.2% -$90,851
DIS Minor increase 2025-12-31 Filed 2026-02-17 145,782 145,536 0.2% -$78,253

Public video / Interview / Shareholder letter / Public Q&A

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