Larson David

No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
18
12 non-derivative · 6 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Jun 4, 2021Option exercise(M)2K$3.03$6K89K
Jun 4, 2021Tax withholding(F)1K$3.03$4K87K
Jun 4, 2021Option exercise(M)2K$3.03$6K89K
Jun 4, 2021Tax withholding(F)2K$3.03$5K88K
Jun 4, 2021Option exercise(M)8K$3.03$23K95K
Jun 4, 2021Tax withholding(F)7K$3.03$20K88K
Jun 4, 2021Option exercise(M)2K$3.03$6K90K
Jun 4, 2021Tax withholding(F)2K$3.03$5K89K
Jun 4, 2021Option exercise(M)2K$3.03$6K88K
Jun 4, 2021Tax withholding(F)2K$3.03$6K87K
Jun 4, 2021Option exercise(M)2K$3.03$6K89K
Jun 4, 2021Tax withholding(F)2K$3.03$5K87K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Jun 4, 2021Option exercise(M)2K$3.03$6K0
Jun 4, 2021Option exercise(M)2K$2.68$5K0
Jun 4, 2021Option exercise(M)2K$2.43$5K0
Jun 4, 2021Option exercise(M)2K$2.70$5K0
Jun 4, 2021Option exercise(M)8K$2.82$21K0
Jun 4, 2021Option exercise(M)2K$2.25$5K0

Transaction Codes

M
Option exercise / conversion
F
Shares withheld for taxes

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4/A filing (accession 0001437749-21-015954) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

Build

Ask your agent about AMS insider filings

This filing is the Follow view. The Build view lets your agent pull every Form 4 for the issuer, the net open-market picture over 90 days, and the accession behind each row, through REST or MCP.

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curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/filing/0001437749-21-015954"
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Use Arkolith to summarize insider buying and selling at AMERICAN SHARED HOSPITAL SERVICES
over the last 90 days and cite the filings.