Berkshire Hathaway Cl B

CUSIP: 084670207 Class: COM

E. Ohman J:or Asset Management AB's Holding History (CIK: 0002009396)

Note: Option positions (PUT/CALL) are excluded.

Q4 2009
Shares 148 Value ($000) $486 Avg Close — Range —
Q3 2009
Shares 190 Value ($000) $630 Avg Close — Range —
Q2 2009
Shares 190 Value ($000) $550 Avg Close — Range —
Q4 2008
Shares 140 Value ($000) $450 Avg Close — Range —
Q3 2008
Shares 120 Value ($000) $527 Avg Close — Range —
Q2 2008
Shares 130 Value ($000) $522 Avg Close — Range —