RPID

Rapid Micro Biosystems, INC.

Insider trading activity for Rapid Micro Biosystems, INC., 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 34 most recent Form 4 transactions.

Open in screener →

Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Jul 24	Kollender Richard S	Director	MEXER◆	1,827	—	—	—	Open the original filing on SEC.gov
Jul 24	Kollender Richard S	Director	MEXER◆	1,681	—	—	—	Open the original filing on SEC.gov
Jul 24	Kollender Richard S	Director	MEXER	1,827	$0.75	$1.4K	+1.4%	Open the original filing on SEC.gov
Jul 24	Kollender Richard S	Director	MEXER	1,681	$0.75	$1.3K	+1.3%	Open the original filing on SEC.gov
Jul 22	Spignesi Robert G. Jr.	President and CEO	MEXER◆	1,402	—	—	—	Open the original filing on SEC.gov
Jul 22	Spignesi Robert G. Jr.	President and CEO	MEXER	1,402	$0.75	$1.1K	+0.1%	Open the original filing on SEC.gov
May 29	Spignesi Robert G. Jr.	President and CEO	AGRANT◆	12,787	—	—	—	Open the original filing on SEC.gov
May 29	Spignesi Robert G. Jr.	President and CEO	AGRANT◆	12,787	—	—	—	Open the original filing on SEC.gov
May 29	Spignesi Robert G. Jr.	President and CEO	AGRANT	12,787	$1.96	$25K	+1.1%	Open the original filing on SEC.gov
May 29	Wirtjes Sean M	Chief Financial Officer	AGRANT◆	12,787	—	—	—	Open the original filing on SEC.gov
May 29	Wirtjes Sean M	Chief Financial Officer	AGRANT◆	12,787	—	—	—	Open the original filing on SEC.gov
May 29	Wirtjes Sean M	Chief Financial Officer	AGRANT	12,787	$1.96	$25K	+2.3%	Open the original filing on SEC.gov
May 29	Pei Melinda Litherland	Director	AGRANT◆	12,787	—	—	—	Open the original filing on SEC.gov
May 29	Pei Melinda Litherland	Director	AGRANT◆	12,787	—	—	—	Open the original filing on SEC.gov
May 29	Pei Melinda Litherland	Director	AGRANT	12,787	$1.96	$25K	+14.5%	Open the original filing on SEC.gov
May 29	Malloy Kirk	Director	AGRANT◆	12,787	—	—	—	Open the original filing on SEC.gov
May 29	Malloy Kirk	Director	AGRANT◆	12,787	—	—	—	Open the original filing on SEC.gov
May 29	Malloy Kirk	Director	AGRANT	12,787	$1.96	$25K	+26.7%	Open the original filing on SEC.gov
May 29	Lowenstein Inese	Director	AGRANT◆	12,787	—	—	—	Open the original filing on SEC.gov
May 29	Lowenstein Inese	Director	AGRANT◆	12,787	—	—	—	Open the original filing on SEC.gov
May 29	Lowenstein Inese	Director	AGRANT	12,787	$1.96	$25K	+22.1%	Open the original filing on SEC.gov
May 21	Pei Melinda Litherland	Director	AGRANT◆	38,700	—	—	—	Open the original filing on SEC.gov
May 21	Pei Melinda Litherland	Director	AGRANT	19,300	—	—	+28.1%	Open the original filing on SEC.gov
May 21	Malloy Kirk	Director	AGRANT◆	38,700	—	—	—	Open the original filing on SEC.gov
May 21	Malloy Kirk	Director	AGRANT	19,300	—	—	+67.5%	Open the original filing on SEC.gov
May 21	Lowenstein Inese	Director	AGRANT◆	38,700	—	—	—	Open the original filing on SEC.gov
May 21	Lowenstein Inese	Director	AGRANT	19,300	—	—	+50.0%	Open the original filing on SEC.gov
May 21	Kollender Richard S	Director	AGRANT◆	38,700	—	—	—	Open the original filing on SEC.gov
May 21	Kollender Richard S	Director	AGRANT	19,300	—	—	+17.4%	Open the original filing on SEC.gov
May 21	Bika Dafni	Director	AGRANT◆	38,700	—	—	—	Open the original filing on SEC.gov
May 21	Bika Dafni	Director	AGRANT	19,300	—	—	—	Open the original filing on SEC.gov
May 20	Bain Capital Life…	10% Owner	PDBUY◆	1.5M	—	—	—	Open the original filing on SEC.gov
May 20	Bain Capital Life…	10% Owner	PDBUY◆	1.5M	—	—	—	Open the original filing on SEC.gov
May 20	Bain Capital Life…	10% Owner	PDBUY◆	1.5M	—	—	—	Open the original filing on SEC.gov

MEXER◆—

Kollender Richard S · DirectorJul 24

1,827 sh

MEXER◆—

Kollender Richard S · DirectorJul 24

1,681 sh

MEXER$1.4K

Kollender Richard S · DirectorJul 24

1,827 sh @ $0.75 · +1.4% own

MEXER$1.3K

Kollender Richard S · DirectorJul 24

1,681 sh @ $0.75 · +1.3% own

MEXER◆—

Spignesi Robert G. Jr. · President and CEOJul 22

1,402 sh

MEXER$1.1K

Spignesi Robert G. Jr. · President and CEOJul 22

1,402 sh @ $0.75 · +0.1% own

AGRANT◆—

Spignesi Robert G. Jr. · President and CEOMay 29

12,787 sh

AGRANT◆—

Spignesi Robert G. Jr. · President and CEOMay 29

12,787 sh

AGRANT$25K

Spignesi Robert G. Jr. · President and CEOMay 29

12,787 sh @ $1.96 · +1.1% own

AGRANT◆—

Wirtjes Sean M · Chief Financial…May 29

12,787 sh

AGRANT◆—

Wirtjes Sean M · Chief Financial…May 29

12,787 sh

AGRANT$25K

Wirtjes Sean M · Chief Financial…May 29

12,787 sh @ $1.96 · +2.3% own

AGRANT◆—

Pei Melinda Litherland · DirectorMay 29

12,787 sh

AGRANT◆—

Pei Melinda Litherland · DirectorMay 29

12,787 sh

AGRANT$25K

Pei Melinda Litherland · DirectorMay 29

12,787 sh @ $1.96 · +14.5% own

AGRANT◆—

Malloy Kirk · DirectorMay 29

12,787 sh

AGRANT◆—

Malloy Kirk · DirectorMay 29

12,787 sh

AGRANT$25K

Malloy Kirk · DirectorMay 29

12,787 sh @ $1.96 · +26.7% own

AGRANT◆—

Lowenstein Inese · DirectorMay 29

12,787 sh

AGRANT◆—

Lowenstein Inese · DirectorMay 29

12,787 sh

AGRANT$25K

Lowenstein Inese · DirectorMay 29

12,787 sh @ $1.96 · +22.1% own

AGRANT◆—

Pei Melinda Litherland · DirectorMay 21

38,700 sh

AGRANT—

Pei Melinda Litherland · DirectorMay 21

19,300 sh · +28.1% own

AGRANT◆—

Malloy Kirk · DirectorMay 21

38,700 sh

AGRANT—

Malloy Kirk · DirectorMay 21

19,300 sh · +67.5% own

AGRANT◆—

Lowenstein Inese · DirectorMay 21

38,700 sh

AGRANT—

Lowenstein Inese · DirectorMay 21

19,300 sh · +50.0% own

AGRANT◆—

Kollender Richard S · DirectorMay 21

38,700 sh

AGRANT—

Kollender Richard S · DirectorMay 21

19,300 sh · +17.4% own

AGRANT◆—

Bika Dafni · DirectorMay 21

38,700 sh

AGRANT—

Bika Dafni · DirectorMay 21

19,300 sh

PDBUY◆—

Bain Capital Life… · 10% OwnerMay 20

1.5M sh

PDBUY◆—

Bain Capital Life… · 10% OwnerMay 20

1.5M sh

PDBUY◆—

Bain Capital Life… · 10% OwnerMay 20

1.5M sh

Filing record

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

All 12 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.