Warren Buffett - Berkshire Hathaway 13F Activity & Position Changes (Q3 2013)
According to the SEC 13F filed on Aug 14, 2026, the Berkshire Hathaway portfolio showed several notable changes in holdings as of quarter-end Sep 30, 2013. The activity included new positions, additions to existing holdings, reductions, and complete exits, providing a clear view of how the portfolio evolved during the quarter.
During Q3 2013, the filing reported:
New Buys - Exxon Mobil Corporation
Increases - The Bank of New York Mellon Cor, DaVita Inc., Suncor Energy Inc., U.S. Bancorp, VeriSign, Inc.
Reductions - ConocoPhillips, Sanofi
Complete Exits - None reported
These updates highlight how the portfolio adjusted across different sectors and market conditions, offering insights into allocation shifts and investment trends.
| Date | Symbol | Type | Change Qty |
|---|---|---|---|
|
Q3 2013
|
BK
The Bank of New York Mellon Cor
|
Buy |
+8,807
|
|
Q3 2013
|
COP
ConocoPhillips
|
Sell |
-10,594,641
|
|
Q3 2013
|
DVA
DaVita Inc.
|
Buy |
+16,472,924
|
|
Q3 2013
|
SNY
Sanofi
|
Sell |
-157,800
|
|
Q3 2013
|
SU
Suncor Energy Inc.
|
Buy |
+240,500
|
|
Q3 2013
|
USB
U.S. Bancorp
|
Buy |
+840,200
|
|
Q3 2013
|
VRSN
VeriSign, Inc.
|
Buy |
+64,100
|
|
Q3 2013
|
XOM
Exxon Mobil Corporation
|
Buy - Position Entry |
+40,089,371
|