Wayne Foster

CIK 1709769 · EVP, Chief Accounting Officer · last filed 2026-02-03

Wayne Foster is an EVP, Chief Accounting Officer who has filed 10 SEC Form 4 insider transactions across 2 companies since 2018. The most recent filing, for AVIR, was dated Feb 3, 2026. Across all open-market trades the lifetime net is −$47.9K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $356.2K across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$356.2K

Companies

2

Total Filings

10

Lifetime Open-Market Net

-$47.9K

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
AVIR EVP, Chief Accounting Officer 79,329 $4.49 $356.2K -$47.9K 7 2026-02-03
Mersana Therapeutics, Inc. (MRSN) Delisted Vice President of Finance 65,322 $29.08 $1.90M $0 3 2019-01-25

Recent Filings

10 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-02-03 AVIR Mixed +29,201 -$51.4K EDGAR
2025-02-04 AVIR Mixed +29,271 -$36.9K EDGAR
2024-02-02 AVIR Mixed +20,857 -$47.9K EDGAR
2023-02-02 AVIR Grant (A) $0 EDGAR
2022-02-02 AVIR Grant (A) $0 EDGAR
2021-02-01 AVIR Grant (A) $0 EDGAR
2020-10-30 AVIR Grant (A) $0 EDGAR
2019-01-25 Mersana Therapeutics, Inc. (MRSN) Delisted Grant (A) $0 EDGAR
2018-02-06 Mersana Therapeutics, Inc. (MRSN) Delisted Grant (A) $0 EDGAR
2018-02-01 Mersana Therapeutics, Inc. (MRSN) Delisted Exer (M) +14,705 $44.6K EDGAR
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.