William E. Duke

Insider Reports History

Identity Names, identifiers, and filing context for this profile. 1 identity field
Reporting-owner location
New Haven, CT
SEC source record Original filing metadata and source links for verification. 1 source field
Latest reporting-owner signature
/s/ Jill Andersen attorney-in-fact for William E. Duke
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 E. Duke

Form 4 holding Chief Financial Officer

Invivyd, Inc.

Security class
Common Stock
Shares / value
107,717
Estimated value
$169,955
Report date
18 Feb 2026
Price
$1.58
Ownership
Direct
Form 4 holding Chief Financial Officer

Invivyd, Inc.

Security class
Restricted Stock Units
Shares / value
102,000
Estimated value
$133,650
Report date
15 Feb 2026
Price
$0.4455
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding Chief Financial Officer

Invivyd, Inc.

Security class
Stock Option (Right to Buy)
Shares / value
625,000
Estimated value
Report date
29 Jan 2026
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding Chief Financial Officer

Kaleido Biosciences, Inc.

Security class
Restricted Stock Units
Shares / value
125,000
Estimated value
Report date
14 Jan 2022
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding Chief Financial Officer

Apexigen, Inc.

Security class
Common Stock
Shares / value
0
Estimated value
Report date
23 Aug 2023
Price
$0.3851
Ownership
Direct
Form 4 holding Chief Financial Officer

Apexigen, Inc.

Security class
Employee Stock Option (right to buy)
Shares / value
0
Estimated value
Report date
23 Aug 2023
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Insider Reports Filed by William E. Duke

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