NASDAQ:RPID

Rapid Micro Biosystems Stock Insider Trading

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*Your capital is at risk
$1.96
+0 (+0%)
At Close: Jun 03, 2026

Rapid Micro Biosystems Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 61.40. In total, the insiders bought 7.53M and sold 567.97K RPID shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power

(Last 100 transactions)
61.40
Buy 7.53M shares
Sell 567.97K shares
72% Buy Activity
Weak Negative Correlation
Buy Signal Medium Confidence
May 20, 2026

Analysis Breakdown:

  • Strongly supported by a very high Insider Power Score of 61.4.
  • Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date Type Person Role Amount
Jan 23, 2026
Buy
Class A Common Stock
X-InTheMoney
Longitude Capital Partners Ii, Llc
10 Percent Owner
10% Owner 629 032
Value: $31.5K
Jan 23, 2026
Sell
Class A Common Stock
X-InTheMoney
Longitude Capital Partners Ii, Llc
10 Percent Owner
10% Owner 129 032
Value: $6K
Nov 14, 2025
Sell
Class A Common Stock
G-Gift
Malloy Kirk
Director
Director 40 000
Value: $0
Oct 17, 2025
Buy
Stock Option (Right to Buy)
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 7 833
Value: $6K
Oct 17, 2025
Sell
Class A Common Stock
F-InKind
Spignesi Robert G. Jr.
President And CEO
CEO / President 2 072
Value: $6K
Oct 17, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 3 400
Value: $3K
Oct 17, 2025
Sell
Class A Common Stock
F-InKind
Spignesi Robert G. Jr.
President And CEO
CEO / President 4 774
Value: $14.7K
Oct 17, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 7 833
Value: $6K
Jul 14, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 25 145
Value: $80.5K
Jul 14, 2025
Sell
Class A Common Stock
S-Sale
Spignesi Robert G. Jr.
President And CEO
CEO / President 11 881
Value: $39.5K
Jul 14, 2025
Sell
Class A Common Stock
S-Sale
Spignesi Robert G. Jr.
President And CEO
CEO / President 11 881
Value: $39.5K
Jul 14, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 25 145
Value: $80.5K
Jul 11, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 25 145
Value: $84.5K
Jul 11, 2025
Sell
Class A Common Stock
S-Sale
Spignesi Robert G. Jr.
President And CEO
CEO / President 11 874
Value: $39.5K
Jul 11, 2025
Sell
Class A Common Stock
S-Sale
Spignesi Robert G. Jr.
President And CEO
CEO / President 11 874
Value: $39.5K
Jul 11, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 25 145
Value: $84.5K
Jul 10, 2025
Sell
Class A Common Stock
S-Sale
Spignesi Robert G. Jr.
President And CEO
CEO / President 11 617
Value: $39.5K
Jul 10, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 25 145
Value: $84.7K
Jul 10, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 25 145
Value: $84.7K
Jul 10, 2025
Sell
Class A Common Stock
S-Sale
Spignesi Robert G. Jr.
President And CEO
CEO / President 11 617
Value: $39.5K
Jul 09, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 25 144
Value: $87.2K
Jul 09, 2025
Sell
Class A Common Stock
S-Sale
Spignesi Robert G. Jr.
President And CEO
CEO / President 11 247
Value: $39.5K
Jul 09, 2025
Sell
Class A Common Stock
S-Sale
Spignesi Robert G. Jr.
President And CEO
CEO / President 11 247
Value: $39.5K
Jul 09, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 25 144
Value: $87.2K
Jul 08, 2025
Buy
Class A Common Stock
M-Exempt
Spignesi Robert G. Jr.
President And CEO
CEO / President 25 144
Value: $88.0K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

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ABOUT RAPID MICRO BIOSYSTEMS, INC.
Rapid Micro Biosystems
Rapid Micro Biosystems, Inc., a life sciences technology company, provides products for the detection of microbial contamination in the manufacture of pharmaceutical, medical devices, and personal care products in North America, Europe, and Asia. The company offers Growth Direct platform, which includes Growth Direct system, proprietary consumables, lab information management system connection software, and comprehensive customer support and vali...
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