AKEBIA THERAPEUTICS INC

Ticker: AKBA CUSIP: 00972D105 Class: COM

RA CAPITAL MANAGEMENT, L.P.'s Holding History (CIK: 0001346824)

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

Q2 2017

Shares 836,337 Value ($000) $12,018 Avg Close $12.68 Range $8.69 - $16.54

Q1 2015

Shares 597,363 Value ($000) $6,637 Avg Close $10.65 Range $8.47 - $13.90

Q4 2014

Shares 597,363 Value ($000) $6,953 Avg Close $14.34 Range $8.60 - $21.75

Q3 2014

Shares 597,363 Value ($000) $13,220 Avg Close $22.97 Range $20.10 - $28.33

Q2 2014

Shares 597,363 Value ($000) $16,601 Avg Close $24.08 Range $16.41 - $31.00

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	836,337	$12,018	$12.68	$8.69 - $16.54
Q1 2015	597,363	$6,637	$10.65	$8.47 - $13.90
Q4 2014	597,363	$6,953	$14.34	$8.60 - $21.75
Q3 2014	597,363	$13,220	$22.97	$20.10 - $28.33
Q2 2014	597,363	$16,601	$24.08	$16.41 - $31.00