Schedule 13D vs 13G: Who Files When an Investor Passes 5%
Schedules 13D and 13G reveal who owns big stakes in public companies. The SEC shortened the deadlines in 2023, and staff narrowed 13G eligibility in 2025.
Anyone who beneficially owns more than 5% of a class of a public company’s voting equity must file either Schedule 13D or Schedule 13G with the SEC. Schedule 13D, required of investors who may seek to influence control, is due within 5 business days. The shorter Schedule 13G is for passive investors, certain institutions and pre-IPO holders, on later deadlines. Both appear on EDGAR.
The deadlines were shortened by amendments the SEC adopted in October 2023 (Release 33-11253), described in its fact sheet. The 13D changes took effect in February 2024, the new 13G deadlines on September 30, 2024, and the structured-data requirement on December 18, 2024.
What counts as owning more than 5%?
The test is beneficial ownership, not just shares in your name. You beneficially own shares if you have or share voting power or investment power over them, directly or through any contract or relationship. Shares you have the right to acquire within 60 days, for example through options or convertible securities, also count.
Investors acting together for the purpose of acquiring, holding, voting or disposing of shares form a “group,” and their holdings are added up. The SEC’s 2023 guidance says a group does not require a written agreement; concerted action can be enough.
Who can file the short Schedule 13G?
Three kinds of holders may use Schedule 13G instead of 13D, as long as they do not hold the shares with the purpose or effect of changing or influencing control:
- Qualified institutional investors: banks, broker-dealers, insurers, registered investment companies and advisers, and similar institutions that bought in the ordinary course of business.
- Passive investors: any other holder without control intent who owns less than 20% of the class.
- Exempt investors: holders who crossed 5% without an acquisition, typically founders and early investors who owned their stake before the company registered its stock in an IPO.
In February 2025, SEC staff revised its guidance on what “influencing control” means. Under the updated staff interpretations, a holder that only discusses its views with management and how they may inform its votes can stay on 13G, but one that pressures management to adopt specific changes, for example by tying its votes for directors to a governance demand, may have to switch to 13D.
What are the Schedule 13D and 13G deadlines?
As of November 2026, these are the filing periods after the 2023 amendments:
| Filer | Initial filing | Amendments |
|---|---|---|
| Schedule 13D (any investor with control intent) | 5 business days after crossing 5% (was 10 days) | 2 business days after a material change |
| 13G: qualified institutional investors | 45 days after the end of the calendar quarter in which 5% was crossed (was 45 days after year end) | 45 days after the quarter in which a material change occurred; sooner on crossing 10% or a 5% change |
| 13G: exempt investors | 45 days after the end of the calendar quarter | 45 days after the quarter of a material change |
| 13G: passive investors | 5 business days after crossing 5% (was 10 days) | 45 days after the quarter of a material change; sooner on crossing 10% or a 5% change |
The filing cut-off on EDGAR for these schedules is now 10 p.m. Eastern time, up from 5:30 p.m. A 13G filer that later forms a control intent must switch to 13D and generally cannot vote or buy more shares for a short cooling-off period after filing.
What does a Schedule 13D tell shareholders?
A 13D is a public statement of who bought, how much, with what money and why. The items readers check first:
- Item 3, source of funds: cash on hand, margin loans or borrowed money.
- Item 4, purpose of the transaction: whether the filer plans to seek a merger, a sale of the company or assets, board seats, a change in dividend policy or other listed actions. Activists often attach their letter to the board here.
- Item 5, interest in securities: the stake as a percentage and transactions in the past 60 days, which shows the prices paid.
- Item 6, contracts and derivatives: since the 2023 amendments, interests in all derivatives that reference the company’s stock, including cash-settled ones.
- Item 7, exhibits: group agreements and letters.
An Item 4 that says the filer may push for “strategic alternatives” can signal a coming proxy fight or sale process. A 13D is not a takeover offer by itself; for what happens if a bid follows, see how a tender offer works.
How do I find 13D and 13G filings on EDGAR?
- Search the company’s name or ticker in EDGAR full-text search or company search on sec.gov.
- Filter by form type. Filings made since the structured-data change appear as “SCHEDULE 13D” and “SCHEDULE 13G”; older ones appear as “SC 13D” and “SC 13G”, with “/A” for amendments.
- Open the filing to see the cover page percentages, then the items above.
- Check the company’s own 8-Ks around the same date for settlements with activists or board changes; our guide to reading an 8-K shows which items to look for.
Bottom line
For ordinary shareholders, the most useful date is the 13D filing date plus the Item 5 trade list: it shows what a large buyer paid in the weeks before going public with a stake. A switch from 13G to 13D by an existing holder is often an earlier sign of activism than a press release. Neither filing obliges anyone to make an offer.
FAQ
Do I have to file if I own 5% exactly?
No. The requirement applies to beneficial ownership of more than 5% of the class, calculated using the company’s most recent reported share count.
Is a 13D filing a sign of a takeover?
Not necessarily. Many 13D filers seek board seats, a strategy change or a buyback rather than control, and the Item 4 text says what the filer intends at the time.
Do index funds file 13D or 13G?
Large fund managers usually file Schedule 13G as qualified institutional investors, because they buy in the ordinary course and do not seek control.
What happens if an investor files late?
The SEC can bring enforcement actions with penalties for late or missing beneficial ownership reports, and it has brought sweeps against groups of late filers.
