OGE ENERGY CORP

Ticker: OGE CUSIP: 670837103 Class: COM

HighVista Strategies LLC's Holding History (CIK: 0001335325)

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

Q3 2018

Shares 6,900 Value ($000) $251 Avg Close $36.38 Range $34.13 - $37.74

Q2 2018

Shares 6,300 Value ($000) $222 Avg Close $33.60 Range $31.49 - $35.54

Q1 2018

Shares 10,300 Value ($000) $338 Avg Close $31.58 Range $29.59 - $33.07

Q4 2017

Shares 13,400 Value ($000) $441 Avg Close $35.32 Range $32.60 - $37.32

Q3 2017

Shares 13,900 Value ($000) $501 Avg Close $35.66 Range $33.95 - $36.67

Q2 2017

Shares 12,500 Value ($000) $435 Avg Close $34.98 Range $33.45 - $37.25

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	6,900	$251	$36.38	$34.13 - $37.74
Q2 2018	6,300	$222	$33.60	$31.49 - $35.54
Q1 2018	10,300	$338	$31.58	$29.59 - $33.07
Q4 2017	13,400	$441	$35.32	$32.60 - $37.32
Q3 2017	13,900	$501	$35.66	$33.95 - $36.67
Q2 2017	12,500	$435	$34.98	$33.45 - $37.25