What stocks does Chris Bloomstran own?

As of Q2 2026, Semper Augustus Investments reported 50 positions with a combined 13F value of $884.6M. Its largest stock positions are BRK.B ($136.7M), ALK ($93.6M) and BRK.A ($89.9M).

How often does Semper Augustus Investments update its portfolio?

Semper Augustus Investments files a 13F with the SEC every quarter, due 45 days after quarter end. The latest covers Q2 2026 and was filed Aug 14, 2026. The next one is due by Nov 16, 2026.

What does Semper Augustus Investments's 13F leave out?

A 13F lists long positions in US-listed stocks and some options held on the last day of a quarter. It leaves out short positions, most bonds, holdings not listed in the US and anything bought or sold since the quarter ended.

Where does Semper Augustus Investments's portfolio data come from?

From the 13F filings Semper Augustus Investments makes to the SEC, available on EDGAR. Each quarter shows how positions changed from the one before.

Smart money

Semper Augustus Investments Group LLC

Chris Bloomstran

Return history

Last 4 years · filing-date model

$100,000 to $210,790

$100,000 in SPY: $227,922.

Total return

+111%

Annualized (4Y CAGR)

+20.5%

vs SPY

−2.4 pts/yr

Moves a year

110

Avg hold

2.0 years

17 filings · quarters -8.4% to +21.2%

All time

+475% since Aug 14, 2013

Fund size $885M today

Oct 8, 2022 to Oct 7, 2026 · min. 86% quarterly priced · Disclosed book, unaudited · Method

Position-weighted returns use each SEC filing date. Options use underlying-stock proxies, not option premiums; put proxies can lose more than 100%. Cash, shorts, non-13F holdings and trades between filings are excluded.

New PAYX and exited Flextronics Intl in Q2 2026.

$884.6M in this filing50 positions

Holdings as of Jun 30, 2026. Filed Aug 14, 2026.

Share change vs Mar 31

1BRK.BBerkshire Hathaway Inc Del15.45%
$136.7M - 273K shares+8.0%
2ALKAlaska Air Group Inc10.58%
$93.6M - 1.8M shares+5.8%
3BRK.ABerkshire Hathaway Inc Del10.16%
$89.9M - 120 shares+3.4%
4DGDollar Gen Corp8.66%
$76.6M - 665K shares+2.6%
5DECKDeckers Outdoor Corp7.52%
$66.5M - 670K shares+1.4%
6DLTRDollar Tree Inc7.25%
$64.1M - 530K shares+3.2%
7BLDRBuilders Firstsource Inc5.60%
$49.5M - 554K shares+142.6%
8OLNOlin Corp4.83%
$42.7M - 2.2M shares+6.1%

#	Stock				At Jun 30	Now
1	BRK.BBerkshire Hathaway Inc Del	15.45%	$136.7M	+8.0%	$500.39	-
2	ALKAlaska Air Group Inc	10.58%	$93.6M	+5.8%	$52.20	$35.73 -31.6%
3	BRK.ABerkshire Hathaway Inc Del	10.16%	$89.9M	+3.4%	$748850.00	-
4	DGDollar Gen Corp	8.66%	$76.6M	+2.6%	$115.11	$129.94 +12.9%
5	DECKDeckers Outdoor Corp	7.52%	$66.5M	+1.4%	$99.29	$86.58 -12.8%
6	DLTRDollar Tree Inc	7.25%	$64.1M	+3.2%	$120.95	$121.76 +0.7%
7	BLDRBuilders Firstsource Inc	5.60%	$49.5M	+142.6%	$89.48	$50.52 -43.5%
8	OLNOlin Corp	4.83%	$42.7M	+6.1%	$19.82	$15.55 -21.5%

42 more on a paid plan

Unlock the full portfolio and quarterly changes.

Unlock all 42 holdings

What is missing

Top 10 concentration: 79%. This filing does not include cash, short positions, private investments, bonds, or many overseas holdings. Next filing due ~Nov 16, 2026.

Disclosed changes

Q2 2026 holdings. Exact trade dates are not disclosed.

More disclosures (3)

Common questions

What stocks does Chris Bloomstran own?: As of Q2 2026, Semper Augustus Investments reported 50 positions with a combined 13F value of $884.6M. Its largest stock positions are BRK.B ($136.7M), ALK ($93.6M) and BRK.A ($89.9M).
How often does Semper Augustus Investments update its portfolio?: Semper Augustus Investments files a 13F with the SEC every quarter, due 45 days after quarter end. The latest covers Q2 2026 and was filed Aug 14, 2026. The next one is due by Nov 16, 2026.
What does Semper Augustus Investments's 13F leave out?: A 13F lists long positions in US-listed stocks and some options held on the last day of a quarter. It leaves out short positions, most bonds, holdings not listed in the US and anything bought or sold since the quarter ended.
Where does Semper Augustus Investments's portfolio data come from?: From the 13F filings Semper Augustus Investments makes to the SEC, available on EDGAR. Each quarter shows how positions changed from the one before.