Brian Bares - Bares Capital Management 13F Activity & Position Changes (Q4 2017)

According to the SEC 13F filed on Nov 14, 2025, the Bares Capital Management portfolio showed several notable changes in holdings as of quarter-end Dec 31, 2017. 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 Q4 2017, the filing 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
Q4 2017
ALRM
Alarm.com Holdings, Inc.
Sell
-32,147
Q4 2017
ANSS
ANSYS, Inc.
Buy
+17,775
Q4 2017
BOX
Box, Inc.
Sell
-204,745
Q4 2017
CRMT
America's Car-Mart, Inc.
Sell - Position Exit
-294,477
Q4 2017
CSGP
CoStar Group, Inc.
Buy
+21,558
Q4 2017
ELF
e.l.f. Beauty, Inc.
Buy - Position Entry
+2,038,065
Q4 2017
FAST
Fastenal Company
Buy
+70,469
Q4 2017
FDS
FactSet Research Systems Inc.
Buy
+88,810
Q4 2017
IBKR
Interactive Brokers Group, Inc.
Buy
+280,574
Q4 2017
IT
Gartner, Inc.
Buy
+145,204
Q4 2017
MKL
Markel Group Inc.
Buy
+2,475
Q4 2017
TWLO
Twilio Inc.
Buy
+395,471
Q4 2017
UA
Under Armour, Inc.
Buy
+181,265
Q4 2017
WAT
Waters Corporation
Buy
+16,771