OSTROWSKI ERIK

PrivateCIK: 1762507
Location

CAMBRIDGE, MA

OSTROWSKI ERIK (SVP, CFO, CBO & Treasurer) received a stock award from AKEBIA THERAPEUTICS, INC.

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 1 award
InsiderOSTROWSKI ERIKCIK 1762507
IssuerAKEBIA THERAPEUTICS, INC.CIK 1517022
Officer· SVP, CFO, CBO & Treasurer
Since Feb 2026
+524K
Net shares
Net buyer
$0.00
Total acquired
0
Open market trades
0B · 0S
2
Total transactions
524K acquired
Non-Derivative Transactions1

Common Stock

Direct
A · Award

Shares

+204K

Price / share

Trade value

% of position

40.5%
1/30/2026
503.59K707.59K
Total

Net shares

+204K

Net value

$0.00

Derivative Transactions1

Stock Option (Right to buy)

Direct
A · Award
Converts to

Common Stock

320K shares

Shares

+320K

Strike price

1.41

Held after

320K

Exercisable

1/30/2026
OSTROWSKI ERIK — Insider Transaction (Form 4) Filed Feb 3, 2026 | Finecho