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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1492422	Apellis Pharmaceuticals Inc.	APLS	Pharmaceutical Preparations (2834)	271537290

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1657719	O. David Watson	C/O Apellis Pharmaceuticals, Inc 100 Fifth Avenue, 3Rd Floor Waltham MA 02451	General Counsel	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2024-01-16	23,748	$0.00	113,501	No	4	A	Direct
Common Stock	Disposition	2024-01-16	4,240	$66.81	109,261	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	A	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Acquisiton	2024-01-16	34,533	$66.30	34,533	$66.30

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
34,533		2034-01-15	No	4	A	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	3,333	Indirect	Indirect Owner (Custodial Account for Son)
Common Stock	80,705	Indirect	Indirect Owner (The David O. Watson Irrevocable Trust of 2023)
Common Stock	6,667	Indirect	Indirect Owner (The Watson Education Trust)

Footnotes

This represents an award of Restricted Stock Units granted 01/16/2024 that vests annually from grant date over a four year period subject to continued service.
This represents shares sold to cover tax withholding on the Restricted Stock Units released on 01/12/2024.
This represents a custodial account held by the reporting person for the sole benefit of his minor son.
The securities are held by The David O. Watson Irrevocable Trust of 2023. William Zorn is the trustee of The David O. Watson Irrevocable Trust of 2023. The reporting person disclaims beneficial ownership over the shares held by The David O. Watson Irrevocable Trust of 2023 except to the extent of his pecuniary interest therein.
The securities are held by The Watson Education Trust (the "Trust"), for which the reporting person serves as trustee. The reporting person disclaims beneficial ownership over the shares held by the Trust except to the extent of his pecuniary interest therein.
This represents a stock option award granted 01/16/2024 that vests over a four year period. 25% vests one year from grant date and the remaining 75% vests monthly thereafter subject to continued service.