Form 4: statement of changes in beneficial ownership.
Form 4 reports an insider’s purchase, sale, grant, option exercise or other change in ownership of the company’s securities. Each transaction carries a one-letter code, for example P for an open-market purchase and S for a sale.
- Filed by
- Section 16 insiders: officers
- Deadline
- Before the end of the second business day after the transaction date
- Observed filings
- 1,521
- Volume rank
- #2 of 162 forms
Who files Form 4
Section 16 insiders: officers, directors and 10% holders.
When it is due
Before the end of the second business day after the transaction date.
What it contains
- Table I non-derivative transactions with code, date, shares and price
- Table II derivative transactions such as option exercises
- Shares owned after each transaction and direct or indirect ownership
- Footnotes, including Rule 10b5-1 plan disclosures
Recent Form 4 filings we observed
| Filed | Company | Form | Accession |
|---|---|---|---|
| 2026-11-09 | PLUMMER MICHELLE M | 4 | 0001437749-26-035905 |
| 2026-11-09 | GREENE BANCORP, INC. | 4 | 0001437749-26-035905 |
| 2026-11-09 | ACKERMAN JOEL | 4 | 0001628280-26-072233 |
| 2026-11-09 | CHAMPIONS ONCOLOGY, INC. | 4 | 0001628280-26-072233 |
| 2026-11-09 | Meaney William L | 4 | 0001566391-26-000028 |
| 2026-11-09 | IRON MOUNTAIN INC | 4 | 0001566391-26-000028 |
| 2026-11-09 | Witczak Eric James | 4 | 0001174850-26-000178 |
| 2026-11-09 | NICOLET BANKSHARES INC | 4 | 0001174850-26-000178 |
| 2026-11-09 | Woodroffe Sean | 4 | 0001214659-26-013884 |
| 2026-11-09 | LINCOLN NATIONAL CORP | 4 | 0001214659-26-013884 |
| 2026-11-09 | GRID DYNAMICS HOLDINGS, INC. | 4 | 0001628280-26-072230 |
| 2026-11-09 | Doradla Anil | 4 | 0001628280-26-072230 |
Variants in the sample: 4 (1,501), 4/A (20).
Get Form 4 filings through the API
Filter filing metadata by exact form type. Amendments carry their own form label (for example 4/A), so request them separately.
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&form=4&transactionCode=P&limit=5" \
-H "Authorization: Bearer $SEC_API_KEY"API reference · Free key, 1,000 requests a month · SEC source for this form
Questions
What is SEC Form 4?
Form 4 reports an insider’s purchase, sale, grant, option exercise or other change in ownership of the company’s securities. Each transaction carries a one-letter code, for example P for an open-market purchase and S for a sale.
When is Form 4 due?
Before the end of the second business day after the transaction date.
Who files Form 4?
Section 16 insiders: officers, directors and 10% holders.
How late are Form 4 filings in practice?
In the latest loaded quarter, our measurement compares each Form 4’s latest transaction date with its filing date. The share filed more than two business days later is shown on /form-4-transaction-codes, computed from SEC data, not estimated.
Where can I see the transaction codes?
The full code list, with counts from the latest quarter, is at /form-4-transaction-codes.
Related forms
Plain-text version for agents and LLMs: /sec-forms/form-4.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.