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

CUSIP: 75340L104

Q3 2025 13F Holders as of 30 Sep 2025

Type / Class
Equity / Common Stock, par value $0.01
Shares outstanding
39,598,228
Total 13F shares
14,828,987
Share change
-320,249
Total reported value
$49,529,221
Price per share
$3.34
Number of holders
29
Value change
-$1,092,903
Number of buys
11
Number of sells
11

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
13F 3/4/5
Company · 10%+ Owner
21%
8,434,560
$29,099,232 30 Jun 2025
KENNEDY LEWIS MANAGEMENT LP
3/4/5
10%+ Owner
class O/S missing
2,904,490
$13,548,284 02 Jun 2022
Robert G. Spignesi Jr.
13D/G
SPIGNESI ROBERT G JR
6.3%
2,647,256
$9,133,033 $0 28 Mar 2024
Jeffrey Lawrence Schwartz
3/4/5
Director, 10%+ Owner
mixed-class rows
8,477,510
mixed-class rows
$8,288,331 23 May 2024
ABG-WTT Global Life Science Capital Partners GP Ltd
13F
Company
4.7%
1,848,296
$6,376,621 30 Jun 2025
13F
Schonfeld Strategic Advisors LLC
13F
Company
2.6%
1,037,668
$3,579,953 30 Jun 2025
13F
Parkman Healthcare Partners LLC
13F
Company
2.3%
913,443
$3,151,378 30 Jun 2025
13F
VANGUARD GROUP INC
13F
Company
2.3%
904,363
$3,120,053 30 Jun 2025
13F
ADVENT INTERNATIONAL, L.P.
13F
Company
1.5%
577,777
$1,993,331 30 Jun 2025
13F
BlackRock, Inc.
13F
Company
1.2%
476,817
$1,645,019 30 Jun 2025
13F
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
0.52%
204,079
$704,268 30 Jun 2025
13F
Informed Momentum Co LLC
13F
Company
0.43%
170,105
$586,862 30 Jun 2025
13F
RENAISSANCE TECHNOLOGIES LLC
13F
Company
0.28%
110,987
$382,905 30 Jun 2025
13F
Gurinder Grewal
3/4/5
10%+ Owner
class O/S missing
294,990
$291,863 19 Jul 2021
Richard S. Kollender
3/4/5
Director
mixed-class rows
139,668
mixed-class rows
$260,892 22 May 2025
ESSEX INVESTMENT MANAGEMENT CO LLC
13F
Company
0.16%
62,326
$215,025 30 Jun 2025
13F
STATE STREET CORP
13F
Company
0.15%
59,874
$206,565 30 Jun 2025
13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
Company
0.13%
51,859
$178,914 30 Jun 2025
13F
NORTHERN TRUST CORP
13F
Company
0.12%
48,559
$167,529 30 Jun 2025
13F
Melinda Litherland Pei
3/4/5
Director
mixed-class rows
97,250
mixed-class rows
$161,210 22 May 2025
Evernest Financial Advisors, LLC
13F
Company
0.11%
44,000
$151,800 30 Jun 2025
13F
Longitude Prime Partners, LLC
3/4/5
10%+ Owner
class O/S missing
150,000
$148,410 19 Jul 2021
XTX Topco Ltd
13F
Company
0.11%
41,800
$144,210 30 Jun 2025
13F
DIMENSIONAL FUND ADVISORS LP
13F
Company
0.1%
40,387
$139,722 30 Jun 2025
13F
Jonathan Paris
3/4/5
SVP, GENERAL COUNSEL
mixed-class rows
325,398
mixed-class rows
$127,334 09 Mar 2023
MORGAN STANLEY
13F
Company
0.09%
36,223
$124,969 30 Jun 2025
13F
Victoria Vezina
3/4/5
CHIEF HUMAN RESOURCES OFFICER
mixed-class rows
168,608
mixed-class rows
$110,468 11 Mar 2024
Inese Lowenstein
3/4/5
Director
mixed-class rows
67,250
mixed-class rows
$90,710 22 May 2025
CITADEL ADVISORS LLC
13F
Company
0.05%
20,762
$71,629 30 Jun 2025
13F
Mariner, LLC
13F
Company
0.05%
20,225
$69,776 30 Jun 2025
13F
AMERICAN CENTURY COMPANIES INC
13F
Company
0.04%
16,922
$58,381 30 Jun 2025
13F
Legato Capital Management LLC
13F
Company
0.04%
14,684
$50,660 30 Jun 2025
13F
Richard A. Keys
3/4/5
CHIEF COMMERCIAL OFFICER
mixed-class rows
131,250
mixed-class rows
$43,286 11 Feb 2022
UBS Group AG
13F
Company
0.02%
8,693
$29,991 30 Jun 2025
13F
David Hirsch
3/4/5
Director
mixed-class rows
42,950
mixed-class rows
$14,028 23 May 2024
RESOURCES MANAGEMENT CORP /CT/ /ADV
13F
Company
0%
500
$2,000 30 Jun 2025
13F
OSAIC HOLDINGS, INC.
13F
Company
0%
300
$1,035 30 Jun 2025
13F
BANK OF AMERICA CORP /DE/
13F
Company
0%
177
$611 30 Jun 2025
13F
JPMORGAN CHASE & CO
13F
Company
0%
109
$376 30 Jun 2025
13F
Steward Partners Investment Advisory, LLC
13F
Company
0%
100
$345 30 Jun 2025
13F
SBI Securities Co., Ltd.
13F
Company
0%
15
$52 30 Jun 2025
13F
Dafni Bika
3/4/5
Director
class O/S missing
50,000
22 May 2025
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 2025

As of 30 Sep 2025, RAPID MICRO BIOSYSTEMS, INC. - Common Stock, par value $0.01 (RPID) was held by 29 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 14,828,987 shares. The largest 10 holders included Bain Capital Life Sciences Investors, LLC, ABG-WTT Global Life Science Capital Partners GP Ltd, VANGUARD GROUP INC, Parkman Healthcare Partners LLC, Schonfeld Strategic Advisors LLC, Advent International, L.P., BlackRock, Inc., GEODE CAPITAL MANAGEMENT, LLC, Evernest Financial Advisors, LLC, and RENAISSANCE TECHNOLOGIES LLC. This page lists 29 institutional shareholders reporting positions in this security for the Q3 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q3 2025 vs Q2 2025 Across Filers

Q2 2025 holders
29
Q3 2025 holders
29
Holder diff
0
Investor Q2 2025 Shares Q3 2025 Shares Share Diff Share Chg % Q2 2025 Value $ Q3 2025 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.