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Companies
▲ Purchases (0 ops.)
▼ Sales (4 ops.)
Latest filing published 24 Jun 2026 for Centessa Pharmaceuticals plc. Read the official filing
Filing timeline
BuySaleKaren M. Anderson
Insider track record
Disclosed buys
0
Disclosed sells
4
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Karen M. Anderson: trading record in brief
This profile gathers the share dealings of Karen M. Anderson across 2 companies, led by Centessa Pharmaceuticals plc and Mimecast Ltd. In total, 28 filings cover trades dated from 9 June 2021 to 24 June 2026.
The open-market record consists of 4 sales worth €833k, with no purchase. The rest of the record consists of 5 share grants and 17 option exercises.
The record was last updated on 24 June 2026 with a transaction in Centessa Pharmaceuticals plc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. The legal deadline for a Form 4 is two business days after the transaction. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Companies and markets linked to Karen M. Anderson
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations28 total
62,085 sharesOrdinary SharesSEC:0001470831-26-000619:0
41,076 shares@ US$8.0114.5% of flowOrdinary SharesSEC:0001470831-26-000331:0
64,768 shares@ US$4.0110.4% of flowOrdinary SharesSEC:0001470831-26-000291:0
94,224 shares@ US$4.010.0054% mcap50.0% of flowOrdinary SharesSEC:0001470831-26-000279:0
109,398 shares@ US$4.0113.7% of flowOrdinary SharesSEC:0001470831-26-000268:0
10,606 shares@ US$24.577.8% of flowOrdinary SharesSEC:0001470831-26-000086:0
30,526 shares@ US$4.015.9% of flowOrdinary SharesSEC:0001847903-25-000031:0
10,732 shares@ US$16.928.7% of flowOrdinary SharesSEC:0001847903-25-000026:0
5,876 shares@ US$3.851.1% of flowOrdinary SharesSEC:0001847903-24-000182:0
5,876 shares@ US$17.01394.8% of flowOrdinary SharesSEC:0001847903-24-000182:1
10,624 shares@ US$3.851.9% of flowOrdinary SharesSEC:0001847903-24-000182:2
10,624 shares@ US$17.32278.7% of flowOrdinary SharesSEC:0001847903-24-000182:3
25,010 shares@ US$4.014.6% of flowOrdinary SharesSEC:0001847903-24-000046:0
19,990 shares@ US$3.853.6% of flowOrdinary SharesSEC:0001847903-24-000046:1
29,995 shares@ US$11.656116.1% of flowOrdinary SharesSEC:0001847903-24-000046:2
21,165 shares@ US$12.205811.9% of flowOrdinary SharesSEC:0001847903-24-000046:3
31,250 shares0Ordinary SharesSEC:0001847903-24-000030:0
53,700 shares0Ordinary SharesSEC:0001847903-23-000042:0
8,649 sharesOrdinary SharesSEC:0000899243-22-019251:0
4,316 sharesOrdinary SharesSEC:0001209191-22-022572:0
4,333 sharesOrdinary SharesSEC:0001209191-22-006416:0
7,812 shares@ US$40.005.7% of flowOrdinary SharesSEC:0001209191-21-062733:0
1,859 shares@ US$33.382.3% of flowOrdinary SharesSEC:0001209191-21-058972:0
15,624 shares@ US$40.0022.6% of flowOrdinary SharesSEC:0001209191-21-051157:0
9,400 shares0Restricted Share UnitsSEC:0001209191-21-045585:0
25 of 28 declarations
