Christopher Mason

CIK 1836440 · Chief Scientific Officer · last filed 2025-06-30

Christopher Mason is a Chief Scientific Officer who has filed 7 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing, for KRYS, was dated Jun 30, 2025.

"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

$0

Companies

2

Total Filings

7

Lifetime Open-Market Net

$0

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
KRYS Director $317.97 $0 6 2025-06-30
Tectonic Therapeutic, Inc. (AVRO) Delisted Chief Scientific Officer $16.80 $0 1 2021-06-14

Recent Filings

7 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2025-06-30 KRYS Grant (A) $0 EDGAR
2024-07-01 KRYS Grant (A) $0 EDGAR
2023-07-03 KRYS Grant (A) $0 EDGAR
2022-07-01 KRYS Grant (A) $0 EDGAR
2021-07-02 KRYS Grant (A) $0 EDGAR
2021-06-14 Tectonic Therapeutic, Inc. (AVRO) Delisted Grant (A) $0 EDGAR
2021-01-05 KRYS Grant (A) $0 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.