Rapid Micro Biosystems, INC Form 4 insider transactions

Richard S Kollender, a Director of Rapid Micro Biosystems, Inc., reported multiple transactions in common stock on July 24, 2026.

Robert G. Spignesi Jr., PRESIDENT AND CEO and a Director of Rapid Micro Biosystems, Inc., reported multiple transactions in common stock on July 22, 2026.

Director Inese Lowenstein acquired 12,787 shares of Rapid Micro Biosystems, Inc. as part of a registered direct offering.

Director Melinda Litherland Pei acquired 12,787 shares of Rapid Micro Biosystems in a registered direct offering.

Director Kirk Malloy acquired 12,787 shares and accompanying warrants in a registered direct offering by Rapid Micro Biosystems.

Rapid Micro Biosystems CFO Sean Wirtjes acquired 12,787 shares and accompanying warrants in a registered direct offering.

CEO Robert Spignesi Jr. acquired 12,787 shares and accompanying warrants in a registered direct offering.

Director Kirk Malloy of Rapid Micro Biosystems, Inc. reported the acquisition of 19,300 shares of Class A Common Stock and the grant of stock options for 38,700 shares.

Director Inese Lowenstein of Rapid Micro Biosystems, Inc. reported the acquisition of 19,300 shares of Class A Common Stock and the grant of stock options for 38,700 shares.

Melinda Litherland Pei, a Director at Rapid Micro Biosystems, Inc. (RPID), reported the acquisition of 19,300 shares of Class A Common Stock and 38,700 stock options.

Richard S. Kollender, a Director at Rapid Micro Biosystems, Inc., acquired restricted stock units and stock options in a transaction dated May 21, 2026.

Director Dafni Bika reported the acquisition of 19,300 shares of Class A Common Stock and 38,700 stock options in Rapid Micro Biosystems, Inc. (RPID).

Rapid Micro Biosystems' COO, John J. Addington Wilson, sold 9,603 shares of Class A Common Stock to cover tax obligations related to restricted stock unit vesting.

Rapid Micro Biosystems' CFO, Sean M. Wirtjes, sold 7,480 shares of Class A Common Stock to cover tax obligations related to restricted stock unit vesting.

Rapid Micro Biosystems' President and CEO, Robert G. Spignesi Jr., sold 17,922 shares of Class A Common Stock to cover tax obligations.

Rapid Micro Biosystems Director Natale S. Ricciardi exercised stock options to acquire 842 shares of Class A Common Stock at $0.75 per share, increasing direct ownership.

Rapid Micro Biosystems' COO, John J. Addington Wilson, sold 5,403 shares of Class A Common Stock to cover tax obligations related to restricted stock unit vesting.

Rapid Micro Biosystems' CFO, Sean M. Wirtjes, sold 17,254 shares of Class A Common Stock at $3.923 per share to cover tax obligations related to restricted stock unit vesting.

Rapid Micro Biosystems CEO Robert G. Spignesi, Jr. reported an automatic sale of 38,327 shares to cover tax obligations related to restricted stock unit vesting.

Rapid Micro Biosystems' Chief Operating Officer, John J. Addington Wilson, was granted 74,000 restricted stock units and options to purchase 147,000 shares of Class A Common Stock.

Rapid Micro Biosystems' Chief Financial Officer, Sean M. Wirtjes, received significant equity grants, including restricted stock units and stock options, effective February 11, 2026.

Rapid Micro Biosystems CEO Robert G. Spignesi Jr. received substantial grants of restricted stock units and stock options, aligning executive incentives with long-term company performance.

Rapid Micro Biosystems' Chief Operating Officer, John J. Addington Wilson, sold 4,610 shares of Class A Common Stock to cover tax obligations related to restricted stock unit vesting.

Rapid Micro Biosystems CFO Sean M. Wirtjes sold 6,027 shares of Class A Common Stock to cover tax obligations related to restricted stock unit vesting.

Rapid Micro Biosystems CEO Robert G. Spignesi Jr. sold 12,840 shares of Class A Common Stock to cover tax obligations related to restricted stock unit vesting.

Longitude Capital Partners II, a 10% owner and director, reported the sale of 49,000 shares of Rapid Micro Biosystems Class A Common Stock at $3.8794 per share, executed under a 10b5-1 plan.

Entities affiliated with Longitude Capital, including 10% owners and directors, exercised warrants and subsequently sold shares of Rapid Micro Biosystems Class A Common Stock.

Rapid Micro Biosystems director Kirk Malloy reported a non-market gift of 40,000 Class A shares, retaining 28,600 direct and 10,000 indirect shares post-transaction.

Rapid Micro Biosystems CEO Robert G. Spignesi Jr. exercised stock options, resulting in a net acquisition of 4,387 Class A Common Stock shares.

Robert G. Spignesi, Jr., President and CEO of Rapid Micro Biosystems, Inc., increased his direct beneficial ownership of Class A Common Stock by 26,535 shares after vesting of performance restricted stock units and subsequent sales to cover tax withholding obligations.