Arkolith/Insider Trading/ALCO

ALCO Insider Trading

ALCO · full profile →Last filing Jul 1, 2026
Mixed · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$0
0 insiders
Net Insider Flow
$0
open market, 180d
Reporting Insiders
0
0 P/S transactions
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Build on these Form 4 transactions

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Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jul 1, 2026Speron Eric H.DirectorGrant(A)453—$0
Jul 1, 2026Putnam AdamDirectorGrant(A)785—$0
Jul 1, 2026English KatherineDirectorGrant(A)483—$0
Jul 1, 2026Purse Toby KDirectorGrant(A)513—$0
Apr 1, 2026Purse Toby KDirectorGrant(A)516$41.21$21K
Apr 1, 2026Speron Eric H.DirectorGrant(A)607$41.21$25K
Apr 1, 2026English KatherineDirectorGrant(A)486$41.21$20K
Apr 1, 2026Putnam AdamDirectorGrant(A)789$41.21$33K
Jan 2, 2026Krusen W Andrew JRDirectorGrant(A)344—$0
Jan 2, 2026Fishman Benjamin DDirectorGrant(A)344—$0
Jan 2, 2026Purse Toby KDirectorGrant(A)585—$0
Jan 2, 2026English KatherineDirectorGrant(A)550—$0
Jan 2, 2026Putnam AdamDirectorGrant(A)859—$0
Oct 1, 2025English KatherineDirectorGrant(A)598—$0
Oct 1, 2025Krusen W Andrew JRDirectorGrant(A)560—$0
Oct 1, 2025Fishman Benjamin DDirectorGrant(A)560—$0
Oct 1, 2025Purse Toby KDirectorGrant(A)635—$0
Oct 1, 2025Putnam AdamDirectorGrant(A)933—$0
Aug 26, 2025Slack Henry RDirectorSell(S)4K$34.29$122K
Aug 25, 2025Slack Henry RDirectorSell(S)3K$34.56$101K
Aug 15, 2025Slack Henry RDirectorSell(S)25K$32.83$814K
Jul 1, 2025English KatherineDirectorGrant(A)596—$0
Jul 1, 2025Fishman Benjamin DDirectorGrant(A)558—$0
Jul 1, 2025Putnam AdamDirectorGrant(A)930—$0
Jul 1, 2025Purse Toby KDirectorGrant(A)633—$0
Jul 1, 2025Krusen W Andrew JRDirectorGrant(A)558—$0
Apr 1, 2025Purse Toby KDirectorGrant(A)724—$0
Apr 1, 2025Putnam AdamDirectorGrant(A)1K—$0
Apr 1, 2025Brokaw George RDirectorGrant(A)681—$0
Apr 1, 2025Fishman Benjamin DDirectorGrant(A)639—$0
Apr 1, 2025Krusen W Andrew JRDirectorGrant(A)639—$0
Apr 1, 2025English KatherineDirectorGrant(A)681—$0
Jan 2, 2025Fishman Benjamin DDirectorGrant(A)724—$0
Jan 2, 2025Krusen W Andrew JRDirectorGrant(A)821—$0
Jan 2, 2025English KatherineDirectorGrant(A)773—$0
Jan 2, 2025Brokaw George RDirectorGrant(A)724—$0
Jan 2, 2025Purse Toby KDirectorGrant(A)773—$0
Jan 2, 2025Putnam AdamDirectorGrant(A)773—$0
Dec 23, 2024Kiernan John EPresident and CEO, DirectorGrant(A)38K—$0
Oct 1, 2024English KatherineDirectorGrant(A)729—$0
Oct 1, 2024Krusen W Andrew JRDirectorGrant(A)775—$0
Oct 1, 2024Brokaw George RDirectorGrant(A)684—$0
Oct 1, 2024Purse Toby KDirectorGrant(A)729—$0
Oct 1, 2024Putnam AdamDirectorGrant(A)729—$0
Oct 1, 2024Fishman Benjamin DDirectorGrant(A)684—$0
Jul 1, 2024Krusen W Andrew JRDirectorGrant(A)815—$0
Jul 1, 2024English KatherineDirectorGrant(A)767—$0
Jul 1, 2024Brokaw George RDirectorGrant(A)719—$0
Jul 1, 2024Fishman Benjamin DDirectorGrant(A)719—$0
Jul 1, 2024Purse Toby KDirectorGrant(A)767—$0
Jul 1, 2024Putnam AdamDirectorGrant(A)767—$0
Apr 1, 2024English KatherineDirectorGrant(A)683—$0
Apr 1, 2024Brokaw George RDirectorGrant(A)640—$0
Apr 1, 2024Fishman Benjamin DDirectorGrant(A)640—$0
Apr 1, 2024Purse Toby KDirectorGrant(A)683—$0
Apr 1, 2024Putnam AdamDirectorGrant(A)683—$0
Apr 1, 2024Krusen W Andrew JRDirectorGrant(A)726—$0
Jan 2, 2024Purse Toby KDirectorGrant(A)682—$0
Jan 2, 2024English KatherineDirectorGrant(A)682—$0
Jan 2, 2024Putnam AdamDirectorGrant(A)682—$0
Jan 2, 2024Brokaw George RDirectorGrant(A)639—$0
Jan 2, 2024Fishman Benjamin DDirectorGrant(A)639—$0
Jan 2, 2024Krusen W Andrew JRDirectorGrant(A)725—$0
Oct 2, 2023Putnam AdamDirectorGrant(A)805—$0
Oct 2, 2023English KatherineDirectorGrant(A)805—$0
Oct 2, 2023Fishman Benjamin DDirectorGrant(A)755—$0
Oct 2, 2023Krusen W Andrew JRDirectorGrant(A)855—$0
Oct 2, 2023Purse Toby KDirectorGrant(A)805—$0
Oct 2, 2023Brokaw George RDirectorGrant(A)755—$0
Oct 2, 2023Slack Henry RDirectorGrant(A)755—$0
Jul 3, 2023English KatherineDirectorGrant(A)780—$0
Jul 3, 2023Fishman Benjamin DDirectorGrant(A)731—$0
Jul 3, 2023Krusen W Andrew JRDirectorGrant(A)829—$0
Jul 3, 2023Purse Toby KDirectorGrant(A)780—$0
Jul 3, 2023Putnam AdamDirectorGrant(A)780—$0
Jul 3, 2023Slack Henry RDirectorGrant(A)731—$0
Jul 3, 2023Brokaw George RDirectorGrant(A)731—$0
Apr 3, 2023Purse Toby KDirectorGrant(A)829—$0
Apr 3, 2023Brokaw George RDirectorGrant(A)778—$0
Apr 3, 2023English KatherineDirectorGrant(A)829—$0
Apr 3, 2023Fishman Benjamin DDirectorGrant(A)778—$0
Apr 3, 2023Krusen W Andrew JRDirectorGrant(A)881—$0
Apr 3, 2023Putnam AdamDirectorGrant(A)829—$0
Apr 3, 2023Slack Henry RDirectorGrant(A)778—$0
Jan 3, 2023Brokaw George RDirectorGrant(A)787$23.83$19K
Jan 3, 2023Eisner R. GregoryDirectorGrant(A)787$23.83$19K
Jan 3, 2023English KatherineDirectorGrant(A)840$23.83$20K
Jan 3, 2023Fishman Benjamin DDirectorGrant(A)787$23.83$19K
Jan 3, 2023Krusen W Andrew JRDirectorGrant(A)892$23.83$21K
Jan 3, 2023Purse Toby KDirectorGrant(A)840$23.83$20K
Jan 3, 2023Putnam AdamDirectorGrant(A)840$23.83$20K
Jan 3, 2023Slack Henry RDirectorGrant(A)787$23.83$19K
Oct 13, 2022English KatherineDirectorSell(S)1K$29.52$32K
Oct 3, 2022Brokaw George RDirectorGrant(A)637$29.48$19K
Oct 3, 2022Eisner R. GregoryDirectorGrant(A)637$29.48$19K
Oct 3, 2022English KatherineDirectorGrant(A)679$29.48$20K
Oct 3, 2022Fishman Benjamin DDirectorGrant(A)637$29.48$19K
Oct 3, 2022Krusen W Andrew JRDirectorGrant(A)721$29.48$21K
Oct 3, 2022Purse Toby KDirectorGrant(A)679$29.48$20K
Oct 3, 2022Putnam AdamDirectorGrant(A)679$29.48$20K

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-03-29 → 2026-07-11. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).