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Who

William E. Duke

Chief Financial Officer

Company insider

Files Form 4 as: Chief Financial Officer, Invivyd; Chief Financial Officer, Apexigen; Chief Financial Officer, Kaleido Biosciences; Chief Financial Officer, Pulmatrix.

In numbers

Trades disclosed
47
Buys
0
Sells
6
Bought
$0
Sold
$220K
Companies
4
Companies where not an officer
0
First trade
24 Jun 2015
Last trade
18 Aug 2026
Last filed
18 Aug 2026

Companies traded

Where they are an officer
IVVD InvivydOfficer · Biotechnology · last 18 Aug 20260 buys · 6 sells
ApexigenOfficer · last 23 Aug 20230 buys · 0 sells
Kaleido BiosciencesOfficer · last 14 Jan 20220 buys · 0 sells
PULM PulmatrixOfficer · Biotechnology · last 16 May 20190 buys · 0 sells

Activity over time

1 Aug 2025 – 1 Oct 2026
20Aug 25Dec 25Mar 26Jul 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
18 Aug 2026filed 18 Aug 2026IVVD InvivydBiotechnologySEC FORM 4 Sold$16K18,425 at $0.8429filing
18 Aug 2026filed 18 Aug 2026IVVD InvivydBiotechnologySEC FORM 4 Sold$15K18,425 at $0.84filing
17 Aug 2026filed 18 Aug 2026IVVD InvivydBiotechnologySEC FORM 4 Sold$16K22,355 at $0.722filing
17 Aug 2026filed 18 Aug 2026IVVD InvivydBiotechnologySEC FORM 4 Sold$16K22,355 at $0.72filing
15 Aug 2026filed 18 Aug 2026IVVD InvivydBiotechnologySEC FORM 4 Code M—102,000filing
15 Aug 2026filed 18 Aug 2026IVVD Invivydoption or derivative · BiotechnologySEC FORM 4 Code M—102,000 at $0.00filing
15 Aug 2026filed 18 Aug 2026IVVD Invivydoption or derivative · BiotechnologySEC FORM 4 Code M—102,000 at $0.00filing
15 Aug 2026filed 18 Aug 2026IVVD InvivydBiotechnologySEC FORM 4 Code M—102,000filing
18 Feb 2026filed 18 Feb 2026IVVD InvivydBiotechnologySEC FORM 4 Sold$33K20,964 at $1.58filing
18 Feb 2026filed 18 Feb 2026IVVD InvivydBiotechnologySEC FORM 4 Sold$33K20,964 at $1.58filing
17 Feb 2026filed 18 Feb 2026IVVD InvivydBiotechnologySEC FORM 4 Sold$30K19,663 at $1.54filing
17 Feb 2026filed 18 Feb 2026IVVD InvivydBiotechnologySEC FORM 4 Sold$30K19,663 at $1.54filing
15 Feb 2026filed 18 Feb 2026IVVD InvivydBiotechnologySEC FORM 4 Code M—99,000filing
15 Feb 2026filed 18 Feb 2026IVVD Invivydoption or derivative · BiotechnologySEC FORM 4 Code M—99,000 at $0.00filing
15 Feb 2026filed 18 Feb 2026IVVD Invivydoption or derivative · BiotechnologySEC FORM 4 Code M—99,000 at $0.00filing
15 Feb 2026filed 18 Feb 2026IVVD InvivydBiotechnologySEC FORM 4 Code M—99,000filing
29 Jan 2026filed 30 Jan 2026IVVD Invivydoption or derivative · BiotechnologySEC FORM 4 Code A—625,000 at $0.00filing
29 Jan 2026filed 30 Jan 2026IVVD Invivydoption or derivative · BiotechnologySEC FORM 4 Code A—625,000 at $0.00filing
19 Aug 2025filed 19 Aug 2025IVVD InvivydBiotechnologySEC FORM 4 Sold$17K29,643 at $0.57filing
18 Aug 2025filed 19 Aug 2025IVVD InvivydBiotechnologySEC FORM 4 Sold$13K20,013 at $0.65filing

Sectors

Health Care6

Buys in green, sells in red, by the company’s sector.

Related people

Ian SheffieldDirector · Director at Invivyd, filing Form 4 there in the last year
Marc EliaChief Executive Officer · Chief Executive Officer at Invivyd, filing Form 4 there in the last year
Jill AndersenChief Legal Officer, Secretary · Chief Legal Officer, Secretary at Invivyd, filing Form 4 there in the last year
Timothy Edward LeeChief Commercial Officer · Chief Commercial Officer at Invivyd, filing Form 4 there in the last year
Julie GreenChief Human Resources Officer · Chief Human Resources Officer at Invivyd, filing Form 4 there in the last year
Robert D. Allen IIIChief Scientific Officer · Also traded IVVD in the last 90 days