Robert D. Allen III - 15 Aug 2026 Form 4 Insider Report for Invivyd, Inc. (IVVD)

Reporting relationship: Chief Scientific Officer
Issuer ticker: IVVD
Reported as of: 15 Aug 2026
Net transaction value: -$29,296
SEC form: 4
Accepted by SEC: 18 Aug 2026, 20:10:14 UTC
Prior SEC filing: 18 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Jill Andersen attorney-in-fact for Robert D. Allen III

Key filing fact

Robert D. Allen III filed Form 4 for Invivyd, Inc. (IVVD) on 18 Aug 2026.

Key facts

This page summarizes Robert D. Allen III's Form 4 filing for Invivyd, Inc. (IVVD).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 18 Aug 2026, 20:10.

Change

Previous filing in this sequence was filed on 18 Feb 2026.
Current net transaction value: -$29,296.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001972424 Primary reporting owner

Allen Robert D. III

Relationship: Chief Scientific Officer
Address: C/O INVIVYD, INC., 205 CHURCH STREET, NEW HAVEN
Signature: /s/ Jill Andersen attorney-in-fact for Robert D. Allen III
Signature date: 18 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IVVD transaction

Common Stock

Options Exercise

Transaction value
Shares: +102,000
Change %: +89%
Price
Shares after: 216,487
Date: 15 Aug 2026
Ownership: Direct
Footnotes: F1

IVVD transaction

Common Stock

Sale

Transaction value: $14,930
Shares: -20,679
Change %: -9.6%
Price: $0.7220
Shares after: 195,808
Date: 17 Aug 2026
Ownership: Direct
Footnotes: F2, F3

IVVD transaction

Common Stock

Sale

Transaction value: $14,366
Shares: -17,043
Change %: -8.7%
Price: $0.8429
Shares after: 178,765
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F2, F4

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

IVVD transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -102,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 15 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 102,000
Exercise price
Footnotes: F1, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 5 footnotes

Footnote F1

Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock of Invivyd, Inc. (the "Company").

Footnote F2

The sales reported on this Form 4 represent shares sold to satisfy the Reporting Person's tax withholding obligations upon vesting of an RSU award in non-discretionary "sell-to-cover" transactions pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on February 20, 2025.

Footnote F3

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.682 to $0.830, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company, or the staff of the U.S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.

Footnote F4

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.760 to $0.872, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (4) to this Form 4.

Footnote F5

This RSU award vests over an eighteen-month period, with one-third of the RSUs vesting every six months following the grant date of February 15, 2025, subject to the Reporting Person's continuous service as of each vesting date.