Sandrock Alfred

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

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Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other

Notification date	Transaction date	B/S Transaction type	Nb. shares Price Value	Number of shares	Price	Value	Details
2025-04-04	2025-04-02	Voyager Therapeutics Inc (VYGR)	S Sale	10,885 -2.5% 3.43 USD 37,336	10,885 -2.5%	3.43	USD 37,336
2025-02-24	2025-02-20	Voyager Therapeutics Inc (VYGR)	S Sale	11,702 -3.8% 4.24 USD 49,616	11,702 -3.8%	4.24	USD 49,616
2025-02-12	2025-02-11	Voyager Therapeutics Inc (VYGR)	PS Planned sale	16,644 -5.1% 4.45 USD 74,066	16,644 -5.1%	4.45	USD 74,066
2024-04-03	2024-04-02	Voyager Therapeutics Inc (VYGR)	S Sale	12,115 -3.6% 9.86 USD 119,454	12,115 -3.6%	9.86	USD 119,454
2024-02-22	2024-02-21	Voyager Therapeutics Inc (VYGR)	S Sale	13,033 -3.7% 7.46 USD 97,226	13,033 -3.7%	7.46	USD 97,226
2023-04-05	2023-04-03	Voyager Therapeutics Inc (VYGR)	S Sale	7,437 -3.3% 7.83 USD 58,232	7,437 -3.3%	7.83	USD 58,232
2021-06-09	2021-06-07	Biogen Inc (BIIB)	PS Planned sale	7,672 -43.0% 440.00 USD 3,375,680	7,672 -43.0%	440.00	USD 3,375,680
2020-11-06	2020-11-04	Biogen Inc (BIIB)	PS Planned sale	1,500 -10.3% 350.00 USD 525,000	1,500 -10.3%	350.00	USD 525,000