RAPID MICRO BIOSYSTEMS, INC. - Common Stock, par value $0.01 (RPID)

CUSIP: 75340L104

Q3 2021 13F Holders as of 30 Sep 2021

Type / Class
Equity / Common Stock, par value $0.01
Shares outstanding
39,598,228
Total 13F shares
21,751,532
Share change
+21,751,532
Total reported value
$401,371,000
Price per share
$18.47
Number of holders
49
Value change
+$401,371,000
Number of buys
49

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Quarterly Holders Quick Answers

What is CUSIP 75340L104?
CUSIP 75340L104 identifies RPID - RAPID MICRO BIOSYSTEMS, INC. - Common Stock, par value $0.01 in SEC institutional holdings data.

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Top shareholders of RPID - RAPID MICRO BIOSYSTEMS, INC. - Common Stock, par value $0.01 (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Holder Source Role / Reporting Ownership % Shares Holdings Value 12M Net Δ As of Details
Bain Capital Life Sciences Investors, LLC
3/4/5
10%+ Owner
class O/S missing
8,434,560
$8,345,154 19 Jul 2021
Gurinder Grewal
3/4/5
10%+ Owner
class O/S missing
294,990
$291,863 19 Jul 2021
Longitude Prime Partners, LLC
3/4/5
10%+ Owner
class O/S missing
150,000
$148,410 19 Jul 2021
Alexander Schmitz
3/4/5
Director
class O/S missing
25,000
14 Jul 2021

Institutional Holders of RAPID MICRO BIOSYSTEMS, INC. - Common Stock, par value $0.01 (RPID) as of Q3 2021

As of 30 Sep 2021, RAPID MICRO BIOSYSTEMS, INC. - Common Stock, par value $0.01 (RPID) was held by 49 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 21,751,532 shares. The largest 10 holders included Bain Capital Life Sciences Investors, LLC, D1 Capital Partners L.P., PRICE T ROWE ASSOCIATES INC /MD/, JPMORGAN CHASE & CO, BlackRock Inc., VANGUARD GROUP INC, ADAGE CAPITAL PARTNERS GP, L.L.C., ADVENT INTERNATIONAL CORP/MA, Sectoral Asset Management Inc, and Ally Bridge Group (NY) LLC. This page lists 49 institutional shareholders reporting positions in this security for the Q3 2021 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q3 2021 vs Q3 2025 Across Filers

Q3 2025 holders
29
Q3 2021 holders
49
Holder diff
20
Investor Q3 2025 Shares Q3 2021 Shares Share Diff Share Chg % Q3 2025 Value $ Q3 2021 Value $ Value Diff $ Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.