Generate Biomedicines, Inc.

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SEC insider activity covers quarterly filings through June 30, 2026. Later filings are not included. Reported roles do not establish current employment or current holdings. SEC filing documents, sections and filing-text search cover filings dated January 1, 2000 onward. Earlier filings are deferred until after launch.

GENB

organization

Date	Insider	Type	Value
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	Buy	$25.0M
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	Buy	$25.0M
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	Buy	$25.0M
2026-03-04	Nally Michael(Chief Executive Officer)	Buy	$240K
2026-03-02	Mendillo Jane L	Buy	$24K
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	$0
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	$0
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	$0
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	$0
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	$0
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	$0
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	$0
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	$0
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	$0
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	$0
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	—
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	—
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	—
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	—
2026-03-02	Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.	C	—

Date

Insider

Type

Value

2026-03-02

Joint reporting: AFEYAN NOUBAR; Flagship Pioneering Fund VI, L.P.; Flagship VentureLabs VI LLC; Flagship Pioneering Special Opportunities Fund II, L.P.; Nutritional Health LTP Fund, L.P.; Flagship Pioneering Fund VII, L.P.; FPN II, L.P.

Buy

$25.0M

2026-03-02

Buy

$25.0M

2026-03-02

Buy

$25.0M

2026-03-04

Nally Michael(Chief Executive Officer)

Buy

$240K