Backstrom Jay T.

Insider Reports History

Identity Names, identifiers, and filing context for this profile. 1 identity field
Reporting-owner location
Cambridge, MA
SEC source record Original filing metadata and source links for verification. 1 source field
Latest reporting-owner signature
/s/ William Cook, as attorney-in-fact for Jay Backstrom
Source: Latest parsed Forms 3/4/5 signature
Source evidence Original filing metadata and source links for verification. 1 source field
Transaction source note
Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for Backstrom Jay T.

Form 4 holding CHIEF EXECUTIVE OFFICER, Director

Scholar Rock Holding Corp

Security class
Common Stock
Shares / value
425,561
Estimated value
$16,062,247
Report date
10 Mar 2025
Price
$37.74
Ownership
Direct
Form 4 holding CHIEF EXECUTIVE OFFICER, Director

Scholar Rock Holding Corp

Security class
Stock Option (Right to Buy)
Shares / value
151,430
Estimated value
Report date
10 Mar 2025
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding Director

LAVA Therapeutics NV

Security class
Common Shares (Right to Buy)
Shares / value
33,390
Estimated value
Report date
13 Feb 2025
Price
Ownership
Direct
Underlying class
Common Shares
Underlying amount
Form 4 holding Director

Disc Medicine, Inc.

Security class
Stock Option (Right to Buy)
Shares / value
7,000
Estimated value
Report date
29 Dec 2022
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding EVP, Research and Development

ACCELERON PHARMA INC

Security class
Common Stock
Shares / value
0
Estimated value
Report date
19 Nov 2021
Price
$29.37
Ownership
Direct
Form 4 holding EVP, Research and Development

ACCELERON PHARMA INC

Security class
Option to Purchase Common Stock
Shares / value
0
Estimated value
Report date
19 Nov 2021
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Insider Reports Filed by Backstrom Jay T.

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