Brian Bares - Bares Capital Management 13F Activity & Position Changes (Q4 2018)
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, 2018. 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 2018, the filing reported:
New Buys - Align Technology, Inc., Element Solutions Inc.
Increases - ANSYS, Inc., Box, Inc., CoStar Group, Inc., Fastenal Company, Guidewire Software, Inc., and 9 more
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 |
|---|---|---|---|
|
Q4 2018
|
ALGN
Align Technology, Inc.
|
Buy - Position Entry |
+88,850
|
|
Q4 2018
|
ALRM
Alarm.com Holdings, Inc.
|
Sell |
-117,290
|
|
Q4 2018
|
ANSS
ANSYS, Inc.
|
Buy |
+37,951
|
|
Q4 2018
|
BOX
Box, Inc.
|
Buy |
+1,859,624
|
|
Q4 2018
|
CSGP
CoStar Group, Inc.
|
Buy |
+26,785
|
|
Q4 2018
|
ELF
e.l.f. Beauty, Inc.
|
Sell |
-1,242,763
|
|
Q4 2018
|
ESI
Element Solutions Inc.
|
Buy - Position Entry |
+18,070,958
|
|
Q4 2018
|
FAST
Fastenal Company
|
Buy |
+192,631
|
|
Q4 2018
|
GWRE
Guidewire Software, Inc.
|
Buy |
+65,546
|
|
Q4 2018
|
IBKR
Interactive Brokers Group, Inc.
|
Buy |
+1,071,288
|
|
Q4 2018
|
IT
Gartner, Inc.
|
Buy |
+130,657
|
|
Q4 2018
|
MIDD
The Middleby Corporation
|
Buy |
+214,328
|
|
Q4 2018
|
PZZA
Papa John's International, Inc.
|
Sell |
-96,130
|
|
Q4 2018
|
SQ
Block, Inc.
|
Buy |
+170,143
|
|
Q4 2018
|
TRIP
TripAdvisor, Inc.
|
Buy |
+146,130
|
|
Q4 2018
|
TYL
Tyler Technologies, Inc.
|
Buy |
+31,547
|
|
Q4 2018
|
UA
Under Armour, Inc.
|
Buy |
+509,245
|
|
Q4 2018
|
WAT
Waters Corporation
|
Buy |
+1,096
|
|
Q4 2018
|
WDAY
Workday, Inc.
|
Buy |
+153,440
|