How to Read a Form 4

Distinguish the reports Form 3 establishes an initial ownership position; Form 4 reports most subsequent changes; Form 5 covers certain deferred or previously unreported transactions. Do not assume every employee or every private-company shareholder is a Section 16 filer. Source 2.

Count business days, then check the rule For an ordinary Monday, June 1, 2026 transaction, the usual deadline is Wednesday, June 3, assuming no applicable holiday or special timing rule. Certain transactions use a deemed execution date. Bona fide gifts now go on Form 4 under the 2022 amendments. Source 1; Source 3.

Read the column heading Transaction code A identifies an award or other qualifying acquisition. An A beside the share amount only means acquired. Transaction code D describes a qualifying disposition to the issuer; a D under ownership form means direct ownership. Source 1.

Link related rows An exercise can appear alongside shares sold or withheld. Check both tables and the dates rather than counting the rows as separate expressions of confidence. A gift is a transfer, and a tax-withholding row is not an ordinary market-sale instruction.

Check the plan context A marked box reports that a transaction was made under an arrangement intended to satisfy Rule 10b5-1(c)’s affirmative-defense conditions. Read the adoption date and footnotes. The checkbox is not an SEC certification that every legal condition was met. Source 1; Source 3.

Understand the waiting period For directors and officers, the amended rule generally requires the later of 90 days after adoption/modification or two business days after specified quarterly-result disclosure, capped at 120 days after adoption/modification. Other covered persons generally have a 30-day period; issuers are excluded from that 30-day requirement. Plan limits, certifications and good faith also matter. Source 3.

Keep ownership categories separate The same filing lists 432,500 common shares indirectly through trusts and 345.608 through a 401(k). Read their descriptions and transfer footnotes; do not mistake the direct line alone for the complete reported common-stock position. Source 4.

An option award is a different event Table II separately reports an A award of 602,773 non-qualified stock options, dated May 14, 2025, with a $308.01 exercise price. Those options are not another 602,773 common shares bought for cash in the P transaction. The header’s earliest date is May 14; the P row is dated May 16. Source 4.

Patterns are not promises Cohen, Malloy and Pomorski’s historical study distinguishes predictable routine trades from a more informative non-routine group. Its sample results do not make every non-routine trade informative, prove unlawful conduct or guarantee returns after you see a filing. Source 6.

Ask what else could explain the event Insiders can sell to diversify or meet liquidity needs. Purchases can be worth investigating, yet the insider may be early or wrong. Compare business results, valuation, incentives and earlier filings. A plan’s existence, one person’s wealth or a large dollar headline cannot answer those questions on its own. Source 2.

Use EDGAR as the reference Search the company or ticker on the SEC’s filings page and include ownership forms, then open Form 4 or an amendment, 4/A. Record the insider, security, date, code, quantity, price, ownership form and footnotes. Compare related filings rather than relying on a summary alone. Source 5.

Read a real report Open the historical Hemsley filing and match its P purchase, A option award, separate holdings and numbered footnotes to this lesson. Then choose another company and review its five most recent Form 4s. Count transaction types, not investment recommendations; amendments and linked rows need care.