Robert G. Spignesi Jr. - 28 Mar 2024 SCHEDULE 13D Report for RAPID MICRO BIOSYSTEMS, INC. Class A Common Stock, $0.01 par value per share (RPID)

Filing Manager
Robert G. Spignesi Jr.
Reporting Manager
SPIGNESI ROBERT G JR
Security
RAPID MICRO BIOSYSTEMS, INC. Class A Common Stock, $0.01 par value per share
Symbol
RPID
Shares outstanding
42,019,937 shares
Disclosed Ownership
2,647,256 shares
Ownership
6.3%
Form type
SCHEDULE 13D
Filing time
19 Aug 2025, 17:39:54 UTC
Date of event
28 Mar 2024
SEC
View on sec.gov

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Quoteable Key Fact

"Robert G. Spignesi Jr. disclosed 6.3% ownership in RAPID MICRO BIOSYSTEMS, INC. Class A Common Stock, $0.01 par value per share (RPID) on 28 Mar 2024."

Quick Takeaways

  • Robert G. Spignesi Jr. filed SCHEDULE 13D for RAPID MICRO BIOSYSTEMS, INC. Class A Common Stock, $0.01 par value per share (RPID).
  • Disclosed ownership: 6.3%.
  • Date of event: 28 Mar 2024.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 19 Aug 2025, 17:39.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
SPIGNESI ROBERT G JR 6.3% 2,647,256 2,647,256 0 /s/ Robert G. Spignesi, Jr. Robert G. Spignesi, Jr. 0001853904

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