Ostrowski Erik

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

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Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	Company	B/S Transaction type	Nb. shares Price Value	Number of shares	Price	Value
2026-02-04	2026-02-02	Akebia Therapeutics Inc (AKBA)	PlS Planned sale	19,453 -34.5% 493.53 US$3,482,828	19,453 -34.5%	493.53	US$3,482,828
2026-02-02	2026-02-02	Akebia Therapeutics Inc (AKBA)	PrS Proposed sale	12,859 84.74 US$785,401	12,859	84.74	US$785,401
2025-07-01	2025-06-30	Akebia Therapeutics Inc (AKBA)	PlS Planned sale	33,570 -12.7% 263.77 US$2,226,775	33,570 -12.7%	263.77	US$2,226,775