Matthew Scott Harris

CIK 1787762 · Chief Medical Officer · last filed 2025-08-04

"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

$218.9K

Companies

1

Total Filings

22

Lifetime Open-Market Net

-$223.6K

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
ALT Chief Medical Officer 83,874 $2.61 $218.9K -$223.6K 22 2025-08-04

Recent Filings · Page 2 of 3

22 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2023-02-06 ALT Mixed +5,411 -$35.6K EDGAR
2023-02-02 ALT Mixed +5,279 -$16.9K EDGAR
2023-02-01 ALT Grant (A) $0 EDGAR
2022-08-03 ALT Grant (A) +1,076 $7.4K EDGAR
2022-03-02 ALT Mixed -$168.0K EDGAR
2022-02-03 ALT Mixed +5,783 -$5.1K EDGAR
2021-08-06 ALT Grant (A) +725 $5.6K EDGAR
2021-02-03 ALT Grant (A) +968 $11.8K EDGAR
2020-11-13 ALT Sell (S) −4,015 -$40.2K EDGAR
2020-08-04 ALT Grant (A) +8,084 $11.8K EDGAR
Showing 1120 of 22
Page 2 of 3
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.