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DAVID EDWARD JOHNSON Insider Profile
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DAVID EDWARD JOHNSON, Director, Ten Percent Owner at Amag Pharmaceuticals, holds 1.57M shares in Exelixis (Ticker: EXEL), holds 8.16M shares in Liquidia Technologies (Ticker: LQDA), holds 0.00 shares in Amag Pharmaceuticals (Ticker: AMAG). Most recently, DAVID EDWARD JOHNSON Bought ― shares of Exelixis on Nov 26, 2025 for an estimated value of $1.19M.
DAVID EDWARD JOHNSON Amag Pharmaceuticals (AMAG)Director, Ten Percent Owner
Amag Pharmaceuticals (AMAG)
Director, Ten Percent Owner
Ranked #8,035 out of 105,077 Corporate Insiders
Profitable Transactions
4 out of 5 Profitable Transactions
Average Return
+51.30%
Average return per transaction
Time Frame
Compare to
Insider Holdings
Insider Roles
Roles that DAVID EDWARD JOHNSON holds in companies
Most Profitable Insider Trade
The most profitable trade made by DAVID EDWARD JOHNSON
DAVID EDWARD JOHNSON's Trading History
Amag Pharmaceuticals
Nov 17, 2020
―
Uninformative Sell
―
$0.00
Liquidia Technologies
Jun 20, 2025
Director, See Remarks, Ten Percent Owner
Uninformative Buy
―
$280.69M
Exelixis
Nov 26, 2025
Director
Informative Buy
1.19M
$69.71M
List of latest transactions for each holding click on a transaction to see DAVID EDWARD JOHNSON's performance on stock
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DAVID EDWARD JOHNSON insider profile FAQ
What is the percentage of profitable transactions made by DAVID EDWARD JOHNSON?
The percentage of profitable transactions made by DAVID EDWARD JOHNSON is 80%.
What is the average return per transaction made by DAVID EDWARD JOHNSON?
The average return per transaction made by DAVID EDWARD JOHNSON is 51.30%.
What stocks does DAVID EDWARD JOHNSON hold?
DAVID EDWARD JOHNSON holds: AMAG, LQDA, EXEL stocks.
What was DAVID EDWARD JOHNSON’s latest transaction?
DAVID EDWARD JOHNSON latest transaction was an Informative Buy of $1.19M.
What was DAVID EDWARD JOHNSON's most profitable transaction?
DAVID EDWARD JOHNSON’s most profitable transaction was an Informative Buy of EXEL stock on May 30, 2024. The return on the trade was 107.10%.
What is DAVID EDWARD JOHNSON's role in Amag Pharmaceuticals?
DAVID EDWARD JOHNSON's role in Amag Pharmaceuticals is Director, Ten Percent Owner.
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