// insider-profile

Graham G. Walmsley

This page tracks every SEC Form 4 filing by Graham G. Walmsley: 44 transactions in total, including 18 open-market purchases and 5 sales. Each record is parsed directly from the original filing, with amendments reconciled so a corrected filing never double-counts.

// activity-summary

No insider transactions in the last 30 days.

// track-record

$52.5M
Total purchased
$39.6M
Total sold
23
18B · 5S transactions
Net buyer
Overall direction

Most active in

Avg buy vs sell price

OLMA$11.87$13.23+11.4%

Average prices across open-market transactions in this dataset.

Largest trade: $10.4M in AKRO (Sep 2022)Filing history: Sep 2022Jun 2026Based on last 44 filings

Transaction History

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jun 18, 2026Graham G. WalmsleyOLMA
Award
29,500$0.00$0K
Dec 9, 2025Graham G. WalmsleyAKRO
Disposition
93,000
Dec 9, 2025Graham G. WalmsleyAKRO
Disposition
1,200,000
Dec 9, 2025Graham G. WalmsleyAKRO
Disposition
9,398
Dec 9, 2025Graham G. WalmsleyAKRO
Disposition
15,000

39 more transactions hidden

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// how to read this

Reading an insider's Form 4 history

Corporate insiders — directors, officers, and holders of more than 10% of a company's stock — must report their trades to the SEC on Form 4 within two business days. Looking at one insider's filings over time shows whether they tend to buy on the open market (a discretionary use of their own money, generally the strongest signal), sell, or simply receive and exercise equity awards as compensation.

The track record above measures how this insider's past open-market purchases performed in the months after each filing. Trades made under a pre-scheduled Rule 10b5-1 plan are flagged because they carry no timing signal. To pull any insider's full history programmatically, see the insider trading API or our guide to reading Form 4 filings.