Rapid Micro Biosystems Inc

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Rapid Micro Biosystems Inc
TickerRPID
CIK #0001380106
CUSIP75340L104
SectorLife Sciences - Laboratory Analytical Instruments
Address1001 Pawtucket Blvd, Lowell, MA 01854
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Rapid Micro Biosystems Inc 2018-05-02 60.0 M Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001380106] 10-K
[0001380106] 10-Q
[0001380106] 3
[0001380106] 4
[0001380106] 8-K
[0001380106] D
[0001380106] SC 13D
[0001380106] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Spignesi Robert G Jr Rapid Micro Biosystems Inc [2025-08-19] 0.0
T Rowe Price Investment Management Inc Rapid Micro Biosystems Inc [2023-02-14] 6.0
Kennedy Lewis Management LP Rapid Micro Biosystems Inc [2022-06-30] 14.1
Kennedy Lewis Management LP Rapid Micro Biosystems Inc [2022-03-16] 5.1
Longitude Capital Partners II LLC Rapid Micro Biosystems Inc [2022-02-15] 11.7
Price T Rowe Associates Inc /MD/ Rapid Micro Biosystems Inc [2022-02-14] 6.3
Bain Capital Life Sciences Fund LP Rapid Micro Biosystems Inc [2022-02-14] 22.2
D1 Capital Partners LP Rapid Micro Biosystems Inc [2022-02-14] 7.7
Colony Harvest Ltd Rapid Micro Biosystems Inc [2022-02-11] 6.1
JPMorgan Chase & Co Rapid Micro Biosystems Inc [2022-01-26] 5.1
Endeavour Medtech Growth II LP Rapid Micro Biosystems Inc [2021-08-30] 6.0
Form 3/4/5 Filer 2011 - 2026
Rapid Micro Biosystems Inc
PEI Melinda Litherland
Lowenstein Inese
Malloy Kirk
Spignesi Robert G Jr
Wirtjes Sean M
Kollender Richard S
Bika Dafni
Bain Capital Life Sciences Fund LP
BCIP Life Sciences Associates LP
Bain Capital Life Sciences Partners LP
Bain Capital Life Sciences Investors LLC
Wilson John J Addington
Ricciardi Natale S
Longitude Venture Partners II LP
Longitude Prime Fund LP
Longitude Prime Partners LLC
Longitude Capital Partners II LLC
Enright Patrick G
Tammenoms Bakker Juliet
Schwartz Jeffrey Lawrence
Hirsch David
Vezina Victoria
Paris Jonathan
Kennedy Lewis Management LP
Kennedy Lewis Investment Management LLC
Kennedy Lewis Capital Partners Master Fund III LP
Kennedy Lewis GP III LLC
Kennedy Lewis Investment Holdings II LLC
Richman Darren
Kennedy Lewis GP II LLC
Kennedy Lewis Capital Partners Master Fund II LP
Chene David
KLM GP LLC
Keys Richard A
Koppel Adam
Grewal Gurinder
Schmitz Alexander
Noyes Michael Andrew
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Wirtjes Sean M
Class A Common Stock
2026-03-11 Sell 7,480 $4.32 32,314
Wilson John J Addington
Class A Common Stock
2026-03-11 Sell 9,603 $4.32 41,485
Spignesi Robert G Jr
Class A Common Stock
2026-03-10 Sell 17,922 $4.11 73,659
Ricciardi Natale S
Stock Option (Right to Buy) · derivative
2026-02-27 Option exercise 842 $0.75 632
Ricciardi Natale S
Class A Common Stock
2026-02-27 Option exercise 842 $0.75 632
Wirtjes Sean M
Class A Common Stock
2026-02-20 Sell 17,254 $3.92 67,636
Wilson John J Addington
Class A Common Stock
2026-02-20 Sell 5,403 $3.92 21,180
Spignesi Robert G Jr
Class A Common Stock
2026-02-19 Sell 38,327 $3.89 149,092
Wilson John J Addington
Stock Option (Right to Buy) · derivative
2026-02-11 Grant 147,000 $0.00
Wilson John J Addington
Class A Common Stock
2026-02-11 Grant 74,000 $0.00
Wirtjes Sean M
Class A Common Stock
2026-02-11 Grant 97,000 $0.00
Spignesi Robert G Jr
Class A Common Stock
2026-02-11 Grant 264,000 $0.00
Spignesi Robert G Jr
Stock Option (Right to Buy) · derivative
2026-02-11 Grant 528,000 $0.00
Wirtjes Sean M
Stock Option (Right to Buy) · derivative
2026-02-11 Grant 193,000 $0.00
Wilson John J Addington
Class A Common Stock
2026-02-09 Sell 4,610 $3.78 17,426
Spignesi Robert G Jr
Class A Common Stock
2026-02-09 Sell 12,840 $3.78 48,535
Wirtjes Sean M
Class A Common Stock
2026-02-09 Sell 6,027 $3.78 22,782
Longitude Venture Partners II LP +5
Class A Common Stock
2026-02-04 Sell 49,000 $3.88 190,120
Longitude Venture Partners II LP +4
Class A Common Stock
2026-02-03 Sell 27,500 $4.24 116,600
Longitude Venture Partners II LP +4
Class A Common Stock
2026-02-02 Sell 27,500 $4.25 116,875
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 46 15,839,879
2025-12-31 42 14,620,290
2025-09-30 29 14,829,096
2025-06-30 29 15,145,310
2025-03-31 29 15,315,094
2024-12-31 20 11,949,584
2024-09-30 20 17,880,704
2024-06-30 22 19,083,969
2024-03-31 24 19,695,617
2023-12-31 27 20,854,423
2023-09-30 24 21,457,255
2023-06-30 25 21,873,676
Form 13F Holdings
Firm Period DFND Voting Shares
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