RAPID MICRO BIOSYSTEMS INC-A (RPID) Top Institutional Shareholders
RAPID MICRO BIOSYSTEMS INC-A (RPID) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $35.32M in RPID holdings during the latest filing period.
Bain Capital Life Sciences Investors, Llc is currently the largest disclosed institutional shareholder of RPID tracked by InsiderSet, reporting ownership valued at approximately $19.15M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $14.17M, representing an estimated loss of -25.99% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 91% of the total disclosed RPID value among the investors covered in this analysis. Major shareholders include Bain Capital Life Sciences Investors, Llc, Abg-Wtt Global Life Science Capital Partners Gp Ltd, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in RAPID MICRO BIOSYSTEMS INC-A (RPID).
This page ranks the largest institutional RPID shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
44
Total Reported Value
$35.32M
Largest Holder
Bain Capital Life Sciences Investors, Llc
Largest Position
$19.15M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
53
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Bain Capital Life Sciences Investors, Llc | 1.73% | 8,434,560 | $19,146,451 | $14,170,061 | -$4,976,390 | -25.99% | |
| Abg-Wtt Global Life Science Capital Partners Gp Ltd | 34.13% | 1,848,296 | $4,195,632 | $3,105,137 | -$1,090,495 | -25.99% | |
| Vanguard Capital Management Llc | 0.00% | 982,494 | $2,230,261 | $1,650,590 | -$579,671 | -25.99% | |
| Essex Investment Management Co Llc | 0.32% | 883,931 | $2,006,523 | $1,485,004 | -$521,519 | -25.99% | |
| Advent International, L.P. | 0.03% | 552,377 | $1,253,896 | $927,993 | -$325,903 | -25.99% | |
| Evernest Financial Advisors, Llc | 0.21% | 432,510 | $1,020,724 | $726,617 | -$294,107 | -28.81% | |
| Sei Investments Co | 0.00% | 284,816 | $646,532 | $478,491 | -$168,041 | -25.99% | |
| Millennium Management Llc | 0.00% | 283,280 | $643,046 | $475,910 | -$167,136 | -25.99% | |
| Geode Capital Management, Llc | 0.00% | 247,177 | $561,331 | $415,257 | -$146,074 | -26.02% | |
| Susquehanna International Group, Llp | 0.00% | 212,114 | $481,499 | $356,352 | -$125,147 | -25.99% | |
| Blackrock, Inc. | 0.00% | 157,232 | $356,916 | $264,150 | -$92,766 | -25.99% | |
| Jane Street Group, Llc | 0.00% | 132,925 | $301,739 | $223,314 | -$78,425 | -25.99% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 126,617 | $287,421 | $212,717 | -$74,704 | -25.99% |
| 683 Capital Management, Llc | 0.03% | 120,773 | $274,155 | $202,899 | -$71,256 | -25.99% | |
| Vanguard Fiduciary Trust Co | 0.00% | 109,712 | $249,046 | $184,316 | -$64,730 | -25.99% | |
| State Street Corp | 0.00% | 93,874 | $213,094 | $157,708 | -$55,386 | -25.99% | |
| Dimensional Fund Advisors Lp | 0.00% | 87,589 | $198,679 | $147,150 | -$51,529 | -25.94% | |
| Goldman Sachs Group Inc | 0.00% | 71,912 | $163,240 | $120,812 | -$42,428 | -25.99% | |
| Fifth Lane Capital, Lp | 0.20% | 71,000 | $161,170 | $119,280 | -$41,890 | -25.99% | |
| Xtx Topco Ltd | 0.00% | 61,070 | $138,629 | $102,598 | -$36,031 | -25.99% | |
| Northern Trust Corp | 0.00% | 48,279 | $109,593 | $81,109 | -$28,484 | -25.99% | |
| Bank Of America Corp | 0.00% | 31,014 | $70,402 | $52,104 | -$18,298 | -25.99% | |
| Morgan Stanley | 0.00% | 29,207 | $66,300 | $49,068 | -$17,232 | -25.99% | |
| Temasek Holdings (Private) Ltd | 0.00% | 21,818 | $49,527 | $36,654 | -$12,873 | -25.99% | |
| Barclays Plc | 0.00% | 21,595 | $49,020 | $36,280 | -$12,740 | -25.99% | |
| Catalyst Funds Management Pty Ltd | 0.01% | 21,200 | $48,124 | $35,616 | -$12,508 | -25.99% | |
| Graham Capital Management, L.P. | 0.00% | 20,000 | $45,400 | $33,600 | -$11,800 | -25.99% | |
| American Century Companies Inc | 0.00% | 16,922 | $38,413 | $28,429 | -$9,984 | -25.99% | |
| Omers Administration Corp | 0.00% | 15,900 | $36,093 | $26,712 | -$9,381 | -25.99% | |
| Qube Research & Technologies Ltd | 0.00% | 15,410 | $34,981 | $25,889 | -$9,092 | -25.99% | |
| Marshall Wace, Llp | 0.00% | 15,224 | $34,558 | $25,576 | -$8,982 | -25.99% | |
| Osaic Holdings, Inc. | 0.00% | 14,000 | $31,780 | $23,520 | -$8,260 | -25.99% | |
| Banco Bilbao Vizcaya Argentaria, S.A. | 0.00% | 12,691 | $29,047 | $21,321 | -$7,726 | -26.60% | |
| Hudson Bay Capital Management Lp | 0.00% | 12,524 | $28,429 | $21,040 | -$7,389 | -25.99% | |
| Nano Cap New Millennium Growth Fund L P | 0.03% | 12,500 | $28,375 | $21,000 | -$7,375 | -25.99% | |
| Vanguard Global Advisers, Llc | 0.00% | 11,630 | $26,400 | $19,538 | -$6,862 | -25.99% | |
| Ubs Group Ag | 0.00% | 11,252 | $25,542 | $18,903 | -$6,639 | -25.99% | |
| Bnp Paribas Financial Markets | 0.00% | 9,327 | $21,172 | $15,669 | -$5,503 | -25.99% | |
| Larson Financial Group Llc | 0.00% | 5,491 | $12,465 | $9,225 | -$3,240 | -25.99% | |
| Royal Bank Of Canada | 0.00% | 719 | $2,000 | $1,208 | -$792 | -39.60% | |
| Cwm, Llc | 0.00% | 188 | $427 | $316 | -$111 | -26.03% | |
| Algert Global Llc | 0.00% | 23,181 | $53 | $38,944 | +$38,891 | +73379.40% | |
| Sbi Securities Co., Ltd. | 0.00% | 15 | $34 | $25 | -$9 | -25.88% | |
| Resources Management Corp | 0.00% | 500 | $1 | $840 | +$839 | +83900.00% |
Frequently asked questions about RPID
Who owns the most RPID stock?
The largest holders of RPID are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for RAPID MICRO BIOSYSTEMS INC-A (RPID).
Is RPID widely held by superinvestors?
Many widely followed stocks like RPID appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly RPID is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.