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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 94 Last 4 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 4 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
OLN Major increase 2025-09-30 Filed 2025-11-14 1,924,245 797,436 141.3% +$32.1M
PARA Sold out 2025-09-30 Filed 2025-11-14 0 1,681,694 -100.0% -$21.7M
NEM Minor increase 2025-09-30 Filed 2025-11-14 678,207 678,145 0.0% +$17.7M
DECK Major increase 2025-09-30 Filed 2025-11-14 374,841 210,523 78.1% +$16.3M
KGC Major reduction 2025-09-30 Filed 2025-11-14 2,589,755 3,086,724 -16.1% +$16.1M
PSKY New 2025-09-30 Filed 2025-11-14 659,284 0 - +$12.5M
DG Minor reduction 2025-09-30 Filed 2025-11-14 925,826 926,119 -0.0% -$10.2M
VLO Minor increase 2025-09-30 Filed 2025-11-14 199,527 198,707 0.4% +$7.3M
BRK.B Minor increase 2025-09-30 Filed 2025-11-14 250,239 246,664 1.4% +$6.0M
FIVE Minor reduction 2025-09-30 Filed 2025-11-14 308,341 322,806 -4.5% +$5.4M
DINO Minor increase 2025-09-30 Filed 2025-11-14 356,712 348,934 2.2% +$4.3M
CMI Minor reduction 2025-09-30 Filed 2025-11-14 39,936 40,039 -0.3% +$3.8M
DLTR Minor reduction 2025-09-30 Filed 2025-11-14 505,157 506,396 -0.2% -$2.5M
SBUX Minor reduction 2025-09-30 Filed 2025-11-14 238,961 239,081 -0.1% -$1.7M
DIS Minor increase 2025-09-30 Filed 2025-11-14 145,536 144,397 0.8% -$1.2M
EQNR Minor increase 2025-09-30 Filed 2025-11-14 573,731 510,218 12.4% +$1.2M
COST Minor reduction 2025-09-30 Filed 2025-11-14 3,435 3,768 -8.8% -$550,555
ALK Minor increase 2025-09-30 Filed 2025-11-14 378,591 372,013 1.8% +$439,057
GLDM Major increase 2025-09-30 Filed 2025-11-14 19,864 17,001 16.8% +$404,697
XOM Minor increase 2025-09-30 Filed 2025-11-14 57,840 56,833 1.8% +$394,863
SGOV Major reduction 2025-09-30 Filed 2025-11-14 5,565 8,128 -31.5% -$258,012
TRV Minor reduction 2025-09-30 Filed 2025-11-14 19,100 19,255 -0.8% +$181,619
KO Minor reduction 2025-09-30 Filed 2025-11-14 15,328 15,622 -1.9% -$88,704
AXP Minor reduction 2025-09-30 Filed 2025-11-14 4,106 4,432 -7.4% -$49,870
FIVE Major increase 2025-06-30 Filed 2025-08-15 322,806 78,664 310.4% +$36.5M
DG Minor increase 2025-06-30 Filed 2025-08-15 926,119 907,179 2.1% +$26.2M
DECK New 2025-06-30 Filed 2025-08-15 210,523 0 - +$21.7M
DLTR Minor increase 2025-06-30 Filed 2025-08-15 506,396 493,386 2.6% +$13.1M
KGC Major reduction 2025-06-30 Filed 2025-08-15 3,086,724 4,506,646 -31.5% -$8.6M
BRK.B Minor increase 2025-06-30 Filed 2025-08-15 246,664 239,349 3.1% -$7.7M
NEM Minor increase 2025-06-30 Filed 2025-08-15 678,145 662,556 2.4% +$7.5M
DINO Major increase 2025-06-30 Filed 2025-08-15 348,934 299,281 16.6% +$4.5M
DIS Minor increase 2025-06-30 Filed 2025-08-15 144,397 139,801 3.3% +$4.1M
NKE Sold out 2025-06-30 Filed 2025-08-15 0 36,550 -100.0% -$2.3M
PARA Minor increase 2025-06-30 Filed 2025-08-15 1,681,694 1,632,655 3.0% +$2.2M
VLO Minor increase 2025-06-30 Filed 2025-08-15 198,707 190,494 4.3% +$1.6M
ALK Minor increase 2025-06-30 Filed 2025-08-15 372,013 344,834 7.9% +$1.4M
OLN Minor increase 2025-06-30 Filed 2025-08-15 797,436 702,466 13.5% -$1.0M
SBUX Minor increase 2025-06-30 Filed 2025-08-15 239,081 231,702 3.2% -$820,660
GEV Minor reduction 2025-06-30 Filed 2025-08-15 3,436 3,738 -8.1% +$677,022
XOM Minor increase 2025-06-30 Filed 2025-08-15 56,833 56,272 1.0% -$565,832
KO Major reduction 2025-06-30 Filed 2025-08-15 15,622 22,000 -29.0% -$470,383
GE Minor reduction 2025-06-30 Filed 2025-08-15 9,352 9,842 -5.0% +$437,235
COST Minor reduction 2025-06-30 Filed 2025-08-15 3,768 4,245 -11.2% -$284,742
SGOV Major reduction 2025-06-30 Filed 2025-08-15 8,128 10,600 -23.3% -$248,694
TRV Minor reduction 2025-06-30 Filed 2025-08-15 19,255 20,155 -4.5% -$178,708
EQNR Minor increase 2025-06-30 Filed 2025-08-15 510,218 490,166 4.1% -$138,010
CVX Minor increase 2025-06-30 Filed 2025-08-15 6,389 6,163 3.7% -$116,167
GLDM Minor increase 2025-06-30 Filed 2025-08-15 17,001 16,219 4.8% +$110,112

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

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