GBIO

Generation Bio Co.

Insider trading activity for Generation Bio Co., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 12 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Transaction history

The 100 most recent Form 4 transactions.

Open in screener →

Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Feb 9	Stehman-Breen Catherine	Director	DTOISS◆	6,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Stehman-Breen Catherine	Director	DTOISS◆	2,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Stehman-Breen Catherine	Director	DTOISS◆	1,920	—	—	—	Open the original filing on SEC.gov
Feb 9	Stehman-Breen Catherine	Director	DTOISS◆	1,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Stehman-Breen Catherine	Director	DTOISS◆	5,200	—	—	—	Open the original filing on SEC.gov
Feb 9	Stehman-Breen Catherine	Director	DTOISS◆	3,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Stehman-Breen Catherine	Director	UTENDR	4,752	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Rowland Charles A Jr	Director	DTOISS◆	6,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Rowland Charles A Jr	Director	DTOISS◆	2,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Rowland Charles A Jr	Director	DTOISS◆	1,920	—	—	—	Open the original filing on SEC.gov
Feb 9	Rowland Charles A Jr	Director	DTOISS◆	1,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Rowland Charles A Jr	Director	DTOISS◆	5,200	—	—	—	Open the original filing on SEC.gov
Feb 9	Rowland Charles A Jr	Director	DTOISS◆	4,246	—	—	—	Open the original filing on SEC.gov
Feb 9	Rowland Charles A Jr	Director	DTOISS◆	3,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Rowland Charles A Jr	Director	UTENDR	53,475	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Rhodes Jason P	Director	DTOISS◆	6,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Rhodes Jason P	Director	DTOISS◆	2,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Rhodes Jason P	Director	DTOISS◆	1,920	—	—	—	Open the original filing on SEC.gov
Feb 9	Rhodes Jason P	Director	DTOISS◆	1,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Rhodes Jason P	Director	DTOISS◆	5,200	—	—	—	Open the original filing on SEC.gov
Feb 9	Rhodes Jason P	Director	DTOISS◆	3,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Rhodes Jason P	Director	UTENDR	60	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Rhodes Jason P	Director	UTENDR	116,693	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Rhodes Jason P	Director	UTENDR	711,193	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Quinn Anthony G.	Director	DTOISS◆	6,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Quinn Anthony G.	Director	DTOISS◆	2,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Quinn Anthony G.	Director	DTOISS◆	1,920	—	—	—	Open the original filing on SEC.gov
Feb 9	Quinn Anthony G.	Director	DTOISS◆	1,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Quinn Anthony G.	Director	DTOISS◆	5,200	—	—	—	Open the original filing on SEC.gov
Feb 9	Quinn Anthony G.	Director	DTOISS◆	3,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Quinn Anthony G.	Director	UTENDR	7,283	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Quinn Anthony G.	Director	UTENDR	29,928	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Nicholson Donald William	Director	DTOISS◆	6,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Nicholson Donald William	Director	DTOISS◆	2,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Nicholson Donald William	Director	DTOISS◆	1,920	—	—	—	Open the original filing on SEC.gov
Feb 9	Nicholson Donald William	Director	DTOISS◆	1,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Nicholson Donald William	Director	DTOISS◆	5,200	—	—	—	Open the original filing on SEC.gov
Feb 9	Nicholson Donald William	Director	DTOISS◆	3,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Nicholson Donald William	Director	UTENDR	21,357	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	McDonough Geoff	Director	DTOISS◆	24,046	—	—	—	Open the original filing on SEC.gov
Feb 9	McDonough Geoff	Director	DTOISS◆	16,874	—	—	—	Open the original filing on SEC.gov
Feb 9	McDonough Geoff	Director	DTOISS◆	90,168	—	—	—	Open the original filing on SEC.gov
Feb 9	McDonough Geoff	Director	DTOISS◆	50,624	—	—	—	Open the original filing on SEC.gov
Feb 9	McDonough Geoff	Director	DTOISS◆	37,499	—	—	—	Open the original filing on SEC.gov
Feb 9	McDonough Geoff	Director	DTOISS◆	25,099	—	—	—	Open the original filing on SEC.gov
Feb 9	McDonough Geoff	Director	DTOISS◆	19,903	—	—	—	Open the original filing on SEC.gov
Feb 9	McDonough Geoff	Director	UTENDR	27,500	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	McDonough Geoff	Director	UTENDR	22,646	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	McDonough Geoff	Director	UTENDR	138,492	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Jonas Jeffrey M	Director	DTOISS◆	6,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Jonas Jeffrey M	Director	DTOISS◆	2,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Jonas Jeffrey M	Director	DTOISS◆	1,920	—	—	—	Open the original filing on SEC.gov
Feb 9	Jonas Jeffrey M	Director	DTOISS◆	1,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Jonas Jeffrey M	Director	DTOISS◆	5,200	—	—	—	Open the original filing on SEC.gov
Feb 9	Jonas Jeffrey M	Director	DTOISS◆	4,246	—	—	—	Open the original filing on SEC.gov
Feb 9	Jonas Jeffrey M	Director	DTOISS◆	3,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Howze Yalonda	Interim CEO and…	DTOISS◆	7,630	—	—	—	Open the original filing on SEC.gov
Feb 9	Howze Yalonda	Interim CEO and…	DTOISS◆	25,102	—	—	—	Open the original filing on SEC.gov
Feb 9	Howze Yalonda	Interim CEO and…	DTOISS◆	11,883	—	—	—	Open the original filing on SEC.gov
Feb 9	Howze Yalonda	Interim CEO and…	DTOISS◆	10,710	—	—	—	Open the original filing on SEC.gov
Feb 9	Howze Yalonda	Interim CEO and…	UTENDR	3,759	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Cooper Ronald Harold…	Director	DTOISS◆	6,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Cooper Ronald Harold…	Director	DTOISS◆	2,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Cooper Ronald Harold…	Director	DTOISS◆	1,920	—	—	—	Open the original filing on SEC.gov
Feb 9	Cooper Ronald Harold…	Director	DTOISS◆	3,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Cooper Ronald Harold…	Director	DTOISS◆	3,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Cooper Ronald Harold…	Director	UTENDR	950	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	1,763	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	550	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	1,877	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	35,525	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	249	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	200	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	5,940	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	2,800	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	2,585	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	1,399	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	621	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	1,061	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	283	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	DTOISS◆	1,192	—	—	—	Open the original filing on SEC.gov
Feb 9	Conway Kevin John	Chief Financial Officer	UTENDR	2,072	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Christensen Gustav	Director	DTOISS◆	6,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Christensen Gustav	Director	DTOISS◆	2,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Christensen Gustav	Director	DTOISS◆	1,920	—	—	—	Open the original filing on SEC.gov
Feb 9	Christensen Gustav	Director	DTOISS◆	1,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Christensen Gustav	Director	DTOISS◆	5,200	—	—	—	Open the original filing on SEC.gov
Feb 9	Christensen Gustav	Director	DTOISS◆	3,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Christensen Gustav	Director	UTENDR	13,142	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Appelhans Dannielle	Director	DTOISS◆	6,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Appelhans Dannielle	Director	DTOISS◆	2,500	—	—	—	Open the original filing on SEC.gov
Feb 9	Appelhans Dannielle	Director	DTOISS◆	3,840	—	—	—	Open the original filing on SEC.gov
Feb 9	Appelhans Dannielle	Director	DTOISS◆	3,000	—	—	—	Open the original filing on SEC.gov
Feb 9	Appelhans Dannielle	Director	UTENDR	736	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Appelhans Dannielle	Director	UTENDR	1,263	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Atlas Venture Fund X,…	10% Owner	UTENDR	60	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Atlas Venture Fund X,…	10% Owner	UTENDR	116,693	—	—	-100.0%	Open the original filing on SEC.gov
Feb 9	Atlas Venture Fund X,…	10% Owner	UTENDR	711,193	—	—	-100.0%	Open the original filing on SEC.gov
Feb 2	Howze Yalonda	Interim CEO & President	MEXER◆	1,673	—	—	—	Open the original filing on SEC.gov
Feb 2	Howze Yalonda	Interim CEO & President	FTAX	495	$5.64	$2.8K	-11.6%	Open the original filing on SEC.gov

DTOISS◆—

Stehman-Breen Catherine · DirectorFeb 9

6,000 sh

DTOISS◆—

Stehman-Breen Catherine · DirectorFeb 9

2,500 sh

DTOISS◆—

Stehman-Breen Catherine · DirectorFeb 9

1,920 sh

DTOISS◆—

Stehman-Breen Catherine · DirectorFeb 9

1,500 sh

DTOISS◆—

Stehman-Breen Catherine · DirectorFeb 9

5,200 sh

DTOISS◆—

Stehman-Breen Catherine · DirectorFeb 9

3,000 sh

UTENDR—

Stehman-Breen Catherine · DirectorFeb 9

4,752 sh · -100.0% own

DTOISS◆—

Rowland Charles A Jr · DirectorFeb 9

6,000 sh

DTOISS◆—

Rowland Charles A Jr · DirectorFeb 9

2,500 sh

DTOISS◆—

Rowland Charles A Jr · DirectorFeb 9

1,920 sh

DTOISS◆—

Rowland Charles A Jr · DirectorFeb 9

1,500 sh

DTOISS◆—

Rowland Charles A Jr · DirectorFeb 9

5,200 sh

DTOISS◆—

Rowland Charles A Jr · DirectorFeb 9

4,246 sh

DTOISS◆—

Rowland Charles A Jr · DirectorFeb 9

3,000 sh

UTENDR—

Rowland Charles A Jr · DirectorFeb 9

53,475 sh · -100.0% own

DTOISS◆—

Rhodes Jason P · DirectorFeb 9

6,000 sh

DTOISS◆—

Rhodes Jason P · DirectorFeb 9

2,500 sh

DTOISS◆—

Rhodes Jason P · DirectorFeb 9

1,920 sh

DTOISS◆—

Rhodes Jason P · DirectorFeb 9

1,500 sh

DTOISS◆—

Rhodes Jason P · DirectorFeb 9

5,200 sh

DTOISS◆—

Rhodes Jason P · DirectorFeb 9

3,000 sh

UTENDR—

Rhodes Jason P · DirectorFeb 9

60 sh · -100.0% own

UTENDR—

Rhodes Jason P · DirectorFeb 9

116,693 sh · -100.0% own

UTENDR—

Rhodes Jason P · DirectorFeb 9

711,193 sh · -100.0% own

DTOISS◆—

Quinn Anthony G. · DirectorFeb 9

6,000 sh

DTOISS◆—

Quinn Anthony G. · DirectorFeb 9

2,500 sh

DTOISS◆—

Quinn Anthony G. · DirectorFeb 9

1,920 sh

DTOISS◆—

Quinn Anthony G. · DirectorFeb 9

1,500 sh

DTOISS◆—

Quinn Anthony G. · DirectorFeb 9

5,200 sh

DTOISS◆—

Quinn Anthony G. · DirectorFeb 9

3,000 sh

UTENDR—

Quinn Anthony G. · DirectorFeb 9

7,283 sh · -100.0% own

UTENDR—

Quinn Anthony G. · DirectorFeb 9

29,928 sh · -100.0% own

DTOISS◆—

Nicholson Donald William · DirectorFeb 9

6,000 sh

DTOISS◆—

Nicholson Donald William · DirectorFeb 9

2,500 sh

DTOISS◆—

Nicholson Donald William · DirectorFeb 9

1,920 sh

DTOISS◆—

Nicholson Donald William · DirectorFeb 9

1,500 sh

DTOISS◆—

Nicholson Donald William · DirectorFeb 9

5,200 sh

DTOISS◆—

Nicholson Donald William · DirectorFeb 9

3,000 sh

UTENDR—

Nicholson Donald William · DirectorFeb 9

21,357 sh · -100.0% own

DTOISS◆—

McDonough Geoff · DirectorFeb 9

24,046 sh

DTOISS◆—

McDonough Geoff · DirectorFeb 9

16,874 sh

DTOISS◆—

McDonough Geoff · DirectorFeb 9

90,168 sh

DTOISS◆—

McDonough Geoff · DirectorFeb 9

50,624 sh

DTOISS◆—

McDonough Geoff · DirectorFeb 9

37,499 sh

DTOISS◆—

McDonough Geoff · DirectorFeb 9

25,099 sh

DTOISS◆—

McDonough Geoff · DirectorFeb 9

19,903 sh

UTENDR—

McDonough Geoff · DirectorFeb 9

27,500 sh · -100.0% own

UTENDR—

McDonough Geoff · DirectorFeb 9

22,646 sh · -100.0% own

UTENDR—

McDonough Geoff · DirectorFeb 9

138,492 sh · -100.0% own

DTOISS◆—

Jonas Jeffrey M · DirectorFeb 9

6,000 sh

DTOISS◆—

Jonas Jeffrey M · DirectorFeb 9

2,500 sh

DTOISS◆—

Jonas Jeffrey M · DirectorFeb 9

1,920 sh

DTOISS◆—

Jonas Jeffrey M · DirectorFeb 9

1,500 sh

DTOISS◆—

Jonas Jeffrey M · DirectorFeb 9

5,200 sh

DTOISS◆—

Jonas Jeffrey M · DirectorFeb 9

4,246 sh

DTOISS◆—

Jonas Jeffrey M · DirectorFeb 9

3,000 sh

DTOISS◆—

Howze Yalonda · Interim CEO and…Feb 9

7,630 sh

DTOISS◆—

Howze Yalonda · Interim CEO and…Feb 9

25,102 sh

DTOISS◆—

Howze Yalonda · Interim CEO and…Feb 9

11,883 sh

DTOISS◆—

Howze Yalonda · Interim CEO and…Feb 9

10,710 sh

UTENDR—

Howze Yalonda · Interim CEO and…Feb 9

3,759 sh · -100.0% own

DTOISS◆—

Cooper Ronald Harold… · DirectorFeb 9

6,000 sh

DTOISS◆—

Cooper Ronald Harold… · DirectorFeb 9

2,500 sh

DTOISS◆—

Cooper Ronald Harold… · DirectorFeb 9

1,920 sh

DTOISS◆—

Cooper Ronald Harold… · DirectorFeb 9

3,000 sh

DTOISS◆—

Cooper Ronald Harold… · DirectorFeb 9

3,000 sh

UTENDR—

Cooper Ronald Harold… · DirectorFeb 9

950 sh · -100.0% own

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

1,763 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

550 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

1,877 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

35,525 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

249 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

200 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

5,940 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

2,800 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

2,585 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

1,399 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

621 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

1,061 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

283 sh

DTOISS◆—

Conway Kevin John · Chief Financial…Feb 9

1,192 sh

UTENDR—

Conway Kevin John · Chief Financial…Feb 9

2,072 sh · -100.0% own

DTOISS◆—

Christensen Gustav · DirectorFeb 9

6,000 sh

DTOISS◆—

Christensen Gustav · DirectorFeb 9

2,500 sh

DTOISS◆—

Christensen Gustav · DirectorFeb 9

1,920 sh

DTOISS◆—

Christensen Gustav · DirectorFeb 9

1,500 sh

DTOISS◆—

Christensen Gustav · DirectorFeb 9

5,200 sh

DTOISS◆—

Christensen Gustav · DirectorFeb 9

3,000 sh

UTENDR—

Christensen Gustav · DirectorFeb 9

13,142 sh · -100.0% own

DTOISS◆—

Appelhans Dannielle · DirectorFeb 9

6,000 sh

DTOISS◆—

Appelhans Dannielle · DirectorFeb 9

2,500 sh

DTOISS◆—

Appelhans Dannielle · DirectorFeb 9

3,840 sh

DTOISS◆—

Appelhans Dannielle · DirectorFeb 9

3,000 sh

UTENDR—

Appelhans Dannielle · DirectorFeb 9

736 sh · -100.0% own

UTENDR—

Appelhans Dannielle · DirectorFeb 9

1,263 sh · -100.0% own

UTENDR—

Atlas Venture Fund X,… · 10% OwnerFeb 9

60 sh · -100.0% own

UTENDR—

Atlas Venture Fund X,… · 10% OwnerFeb 9

116,693 sh · -100.0% own

UTENDR—

Atlas Venture Fund X,… · 10% OwnerFeb 9

711,193 sh · -100.0% own

MEXER◆—

Howze Yalonda · Interim CEO &…Feb 2

1,673 sh

FTAX$2.8K

Howze Yalonda · Interim CEO &…Feb 2

495 sh @ $5.64 · -11.6% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 3 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.