William D. Baird III

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 Baird
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 William D. Baird III

Form 4 holding President and CEO, Director

2seventy bio, Inc.

Security class
Stock Option (Right to buy)
Shares / value
176,000
Estimated value
$691,680
Report date
06 Jan 2025
Price
$3.93
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding Chief Financial Officer

bluebird bio, Inc.

Security class
Common Stock
Shares / value
22,797
Estimated value
$32,586
Report date
11 Nov 2021
Price
$1.43
Ownership
Direct
Form 4 holding Director

Axcella Health Inc.

Security class
Stock Option (Right to Buy)
Shares / value
20,000
Estimated value
Report date
19 May 2022
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding President and CEO, Director

2seventy bio, Inc.

Security class
Stock Options (Right to buy)
Shares / value
0
Estimated value
Report date
13 May 2025
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding Chief Financial Officer

bluebird bio, Inc.

Security class
Stock Option (right to buy)
Shares / value
0
Estimated value
Report date
11 Nov 2021
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Insider Reports Filed by William D. Baird III

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