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RAPID MICRO BIOSYSTEMS, INC.

RPID Net selling

CIK 0001380106 #4430 in the set updated 22 Sep 2026

Bought (12 mo)

$0.00

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$1.14M

$0.00 on a plan · $31.45K straight out of an exercise

Sold at will

$1.11M

13 of 14 sales

Net

−$1.14M

−$1.11M against sales at will

By person

10 insiders · 20 transactions

7.7×

Robert Spignesi holds 7.7 times base salary in stock. $5.15M of shares against $663.60K in salary for 2025.

Salary from the company's own proxy. The shares are what Robert Spignesi last reported holding, valued at $4.32, the price Class A Common Stock was last bought or sold at on the open market here, on 11 Mar 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Longitude Capital Partners II, LLC entity

10% owner

—

$663.95K (5)

−$663.95K

0.000%

$0.00

—

Spignesi Robert G. Jr.

PRESIDENT AND CEO

—

$271.17K (3)

−$271.17K

1,191,973

2.5%

$5.15M

+105.6%

WIRTJES SEAN M

CHIEF FINANCIAL OFFICER

—

$122.79K (3)

−$122.79K

568,981

1.2%

$2.46M

+63.4%

Wilson John J. Addington

CHIEF OPERATING OFFICER

—

$80.10K (3)

−$80.10K

316,762

0.655%

$1.37M

+32.1%

Kollender Richard S

Director

—

133,826

0.277%

$577.87K

+38.4%

PEI MELINDA LITHERLAND

Director

—

100,687

0.208%

$434.78K

+604.1%

LOWENSTEIN INESE

Director

—

70,687

0.146%

$305.23K

+190.9%

Malloy Kirk

Director

—

60,687

0.126%

$262.05K

+11.8%

RICCIARDI NATALE S

Director

—

29,442

0.061%

$127.13K

+105.9%

Bika Dafni

Director

—

19,300

0.040%

$83.34K

—

Individual transactions

Nothing of that kind in this period.

What was left out

Form 4 filings counted 30

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 3

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 1

Sales at will 13

Transactions with no price 0

Shares from compensation/vesting 1,288,298

History held since 15 Jul 2021