InsidersTradesSigma
Total declarations
Companies
▲ Purchases (5 ops.)
▼ Sales (3 ops.)
Insider track record
Board DirectorDisclosed buys
5
Disclosed sells
3
T+90 hit rate
25%
T+90 mean return
-15.5%
Across 4 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the full record of transactions filed by Chang Carmen, Director. Officer active across 13 companies, notably Monte Rosa Therapeutics, Inc.. Aggregated, 22 disclosures have been published. Breakdown: 5 buys · 3 sells. Total volume traded: €8.5m. Activity tracked since 1 November 2021. The latest transaction was disclosed on 10 March 2026 (Acquisition). Regulator: SEC (Form 4). All data is free.
Companies and markets linked to Chang Carmen
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations22 total
34,260 sharesCommon StockSEC:0001193125-26-271323:0
207,100 shares@ US$11.1167.8% of flowCommon StockSEC:0001193125-26-104717:0
Canonical exit: 8 Jun 2026 (T+90)
1,619,240 sharesCommon StockSEC:0001193125-26-046663:0
189,195 shares@ US$0.01100.0% of flowCommon StockSEC:0001193125-25-232142:0
21,765 shares0Common StockSEC:0000950170-25-077140:0
1,023,103 sharesCommon StockSEC:0000950170-24-107552:0
18,669 shares0Common StockSEC:0000950170-24-064775:0
17,857 shares@ US$56.00100.0% of flowCommon StockSEC:0000950170-24-047687:0
Canonical exit: 21 Jul 2024 (T+90)
333,333 shares@ US$3.00100.0% of flowCommon StockSEC:0001209191-23-042799:0
Canonical exit: 15 Oct 2023 (T+90)
2,000,000 shares0Common StockSEC:0001209191-23-037356:0
16,186 shares0Common StockSEC:0001209191-23-032646:0
1,226 shares@ US$11.8243100.0% of flowCommon StockSEC:0001209191-23-019642:0
1,226 shares0Common StockSEC:0001209191-23-010893:0
4,294,207 sharesCommon StockSEC:0001209191-22-059450:0
5,931,843 shares@ €0.0609100.0% of flowCommon StockSEC:0001209191-22-032322:0
8,655 shares0Common StockSEC:0001209191-22-029409:0
2,631,578 shares@ US$1.90100.0% of flowCommon StockSEC:0001209191-22-024315:0
Canonical exit: 10 Jul 2022 (T+90)
37,570 shares@ US$1.321100.0% of flowCommon StockSEC:0001209191-21-071268:0
22,985 shares0Common StockSEC:0001209191-21-062867:0
1,851,852 sharesCommon StockSEC:0001209191-21-061093:0
Canonical exit: 16 Jan 2022 (T+90)
2,715,968 sharesCommon StockSEC:0001209191-21-044039:0
5,864,718 sharesCommon StockSEC:0001209191-21-044190:0
22 of 22 declarations
About Chang Carmen
Chang Carmen is Administrateur and has 22 filings in total. Across the 22 sampled filings between 2021-06-30 and 2026-06-15, the reported amounts are EUR 8405496 of buys and EUR 57460 of sells, with Attribution as the modal transaction nature. The largest filings involve Trevi Therapeutics, Inc., Korro Bio, Inc., Savara Inc, Metacrine, Inc. and Coursera, Inc.
