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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1532346	Atreca Inc.	BCEL	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1278410	Tito Serafini	C/O Atreca, Inc., 450 East Jamie Court South San Francisco CA 94080	Chief Strategy Officer	Yes	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
Class A Common Stock	Disposition	2020-11-11	1,153	$15.10	399,067	No	4	S	Indirect	By the Serafini/Postner Revocable Trust
Class A Common Stock	Disposition	2020-11-12	3,655	$0.00	0	No	4	G	Direct
Class A Common Stock	Acquisiton	2020-11-12	3,655	$0.00	3,655	No	4	G	Indirect	By the Serafini/Postner Revocable Trust

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	By the Serafini/Postner Revocable Trust
No	4	G	Direct
No	4	G	Indirect	By the Serafini/Postner Revocable Trust

Footnotes

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 16, 2020.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.00 to $15.22, inclusive. The reporting person undertakes to provide to Atreca, Inc., any security holder of Atreca, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.
On November 12, 2020, the reporting person transferred 3,655 directly owned shares of Atreca's Class A common stock to the Serafini/Postner Revocable Trust, of which the insider and his wife are trustees and beneficiaries.