RPID Rapid Micro Biosystems, Inc.

NASDAQ
$1.12

Rapid Micro Biosystems, Inc. (RPID) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal In line Selling ran in line with RPID's own trailing one-year pace, with 0% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 0 sellers in the last 90 days
Insiders buying
0
0 transactions
Insiders selling
4
14 transactions
Purchases
$0
0 shares
Sales
$1.1M
277,205 shares
Net activity
-$1.1M
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $0 0 transactions · 0 shares
Discretionary sales $1.1M 14 transactions · 277,205 shares

Largest single sale: $209.0K.

Where they traded

Buy Sell Dot area is proportional to transaction value.

No open-market insider purchase on record.

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Wilson John J. Addington CHIEF OPERATING OFFICER Sell 9,603 $4.32 $41.5K 316,762 −2.9% of holding
WIRTJES SEAN M CHIEF FINANCIAL OFFICER Sell 7,480 $4.32 $32.3K 556,194 −1.3% of holding
Spignesi Robert G. Jr. PRESIDENT AND CEO Sell 17,922 $4.11 $73.7K 1,169,848 −1.5% of holding
WIRTJES SEAN M CHIEF FINANCIAL OFFICER Sell 17,254 $3.92 $67.7K 563,674 −3% of holding
Wilson John J. Addington CHIEF OPERATING OFFICER Sell 5,403 $3.92 $21.2K 326,365 −1.6% of holding
Spignesi Robert G. Jr. PRESIDENT AND CEO Sell 38,327 $3.89 $148.9K 1,187,770 −3.1% of holding
Spignesi Robert G. Jr. PRESIDENT AND CEO Sell 12,840 $3.78 $48.6K 962,097 −1.3% of holding
WIRTJES SEAN M CHIEF FINANCIAL OFFICER Sell 6,027 $3.78 $22.8K 483,928 −1.2% of holding
Wilson John J. Addington CHIEF OPERATING OFFICER Sell 4,610 $3.78 $17.4K 257,768 −1.8% of holding
Sell 49,000 $3.88 $190.1K None left
Sell 27,500 $4.24 $116.6K 49,000 −35.9% of holding
Sell 27,500 $4.25 $116.8K 76,500 −26.4% of holding
Sell 46,000 $4.54 $209.0K 104,000 −30.7% of holding
Sell 7,739 $4.06 $31.5K 4,029,245 −0.2% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.