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Ambrx Biopharma Inc.

Ambrx Biopharma Inc.

AMAM
NYSEHealthcare

Insider Trading for AMAM

View recent insider trading activity including purchases, sales, and awards. Insider trading can provide insights into how executives view their company's prospects.

Insider Trading Summary

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Net Position
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Recent Activity (30 Days)

No insider transactions in the past 30 days.

Quarterly Activity (3 Months)

No insider transactions in the past 3 months.

Key Insider Activity: Dec 15, 2022 to Dec 11, 2023

Cormorant Asset Management, LP
Other10 Percent Owner
+12.3M shares
13 transactions
Nelson Sonja
ExecutiveCorporate Officer
+1.8M shares
8 transactions
Aromando Andrew
ExecutiveCorporate Officer
+3.0M shares
3 transactions
O'Connor Daniel J.
ExecutiveChief Executive Officer
-743.5K shares
5 transactions
Glover Stephen C.
DirectorDirector
+352.5K shares
5 transactions

Transaction Details

DateInsiderRoleTransactionSharesPriceValueOwned AfterSEC Filing
Dec 11, 2023O'Connor Daniel J.EChief Executive OfficerAward/Grant750.0K$0.00$0.001.4MView
Oct 27, 2023O'Connor Daniel J.EChief Executive OfficerSale50.0K$9.82$491,117.84342.8KView
Oct 23, 2023Cormorant Asset Management, LP10 Percent OwnerPurchase1.3M$6.99$9,139,541.9311.2MView
Sep 18, 2023
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Sep 15, 2023
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Sep 1, 2023
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Jun 27, 2023
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Dec 15, 2022
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Click "View" in the SEC Filing column to access the detailed SEC form submission for each transaction.

Executive Activity:

Executives have been net buyers of AMAM stock, which is typically a strong positive signal.