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Filing Details

Accession Number:: 0001209191-23-053345
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2023-10-23 16:49:08
Reporting Period:: 2023-10-19

Accepted Time:: 2023-10-23 16:49:08
SEC Url:: Form 4 Filing

Issuer

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

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1087939	Julian Baker	860 Washington Street, 3Rd Floor New York NY 10014	No	No	No	Yes
1087940	Felix Baker	860 Washington Street, 3Rd Floor New York NY 10014	No	No	No	Yes
1263508	Baker Bros. Advisors Lp	860 Washington Street, 3Rd Floor New York NY 10014	No	No	No	Yes
1580575	Baker Bros. Advisors (Gp) Llc	860 Washington Street, 3Rd Floor New York NY 10014	No	No	No	Yes

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Class A Common Stock	Disposition	2023-10-19	22,837	$0.40	286,893	No	4	S	Indirect	See Footnotes
Class A Common Stock	Disposition	2023-10-19	251,902	$0.40	2,971,128	No	4	S	Indirect	See Footnotes

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes

Footnotes

The price reported in Column 4 is a weighted average price. These shares of Class A common stock ("Class A common stock") of Atreca, Inc. (the "Issuer") were traded by 667, L.P. ("667") and Baker Brothers Life Sciences, L.P. ("Life Sciences", and together with 667, the "Funds") in multiple transactions at prices ranging from $0.37 to $0.42, inclusive. The reporting persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "Staff"), upon request, full information regarding the number of shares traded at each separate price within the range set forth in this footnote.
After giving effect to the transactions reported herein and as a result of their ownership interest in (i) Baker Biotech Capital, L.P. and (ii) 667, Julian C. Baker and Felix J. Baker each may be deemed to have an indirect pecuniary interest in Class A common stock reported in column 5 of Table I directly held by 667, a limited partnership of which the sole general partner is Baker Biotech Capital, L.P., a limited partnership of which the sole general partner is Baker Biotech Capital (GP), LLC, due to their interest in 667 and Baker Biotech Capital, L.P.'s right to receive an allocation of a portion of the profits from 667.
Baker Bros. Advisors LP (the "Adviser") serves as the investment adviser to the Funds. In connection with the services provided by the Adviser,the Adviser receives an asset-based management fee that does not confer any pecuniary interest in the securities held directly by the Funds. Baker Bros. Advisors (GP) LLC (the "Adviser GP") is the Adviser's sole general partner. Julian C. Baker and Felix J. Baker are managing members of the Adviser GP. The Adviser has complete and unlimited discretion and authority with respect to theinvestment and voting power of the securities held directly by the Funds. The general partners of the Funds have relinquished to the Adviser alldiscretion and authority with respect to the investment and voting power of the securities held directly by the Funds.
Julian C. Baker, Felix J. Baker, the Adviser GP and the Adviser disclaim beneficial ownership of the securities held directly by the Funds exceptto the extent of their pecuniary interest therein, and this report shall not be deemed an admission that any of Julian C. Baker, Felix J. Baker, theAdviser GP or the Adviser is a beneficial owner of such securities for purposes of Section 16 or any other purpose.
After giving effect to the transactions reported herein and as a result of their ownership interest in (i) Baker Brothers Life Sciences Capital, L.P.and (ii) Life Sciences, Julian C. Baker and Felix J. Baker each may be deemed to have an indirect pecuniary interest in Class A common stock reportedin column 5 of Table I directly held by Life Sciences, a limited partnership of which the sole general partner is Baker Brothers Life SciencesCapital, L.P., a limited partnership of which the sole general partner is Baker Brothers Life Sciences Capital (GP), LLC, due to their interest inLife Sciences and Baker Brothers Life Sciences Capital, L.P.'s right to receive an allocation of a portion of the profits from Life Sciences.