These questions surfaced again and again in reader forums: why a politician holding stocks is not automatically guilty of anything, how congressional disclosure actually works, what you may and may not do with a public report, how to tell a planned sale from a discretionary one, and what a 13F silently leaves out. Each answer below states the governing text first, then what it means for reading the data on this site. Citations were checked against the current U.S. Code and Code of Federal Regulations on October 31, 2026. Nothing here is legal advice.
1. When a politician owns stocks, why isn't that insider trading?
Because insider trading is not about owning stock. It is about trading while in possession of material nonpublic information, in breach of a duty. The STOCK Act (Pub. L. 112-105), Section 4, states that Members of Congress and employees of Congress are not exempt from the insider-trading prohibitions in the securities laws, and it added 15 U.S.C. §78u-1(g), under which each Member or employee owes a duty of trust and confidence to Congress, the United States Government, and U.S. citizens with respect to material, nonpublic information derived from their position or gained from performing their official responsibilities. So the same act — buying a stock — is lawful when done without such information and unlawful when done on the basis of it. A disclosure filing, by itself, proves neither: it shows that a trade happened, not what the trader knew.
Source: STOCK Act (S. 2038), §4(a)–(b) (amending 15 U.S.C. §78u-1(g)). Bill text (House)
2. How does congressional stock trading disclosure actually work?
Any purchase, sale, or exchange of stocks, bonds, commodity futures, or other securities exceeding $1,000 by a Member, spouse, or dependent child must be reported on a Periodic Transaction Report. The deadline is 30 days after the filer receives notification of the transaction, and in no case later than 45 days after the transaction itself — in practice, the earlier of the two dates. A report filed more than 30 days past its deadline carries a $200 filing fee, which the supervising ethics office may waive in extraordinary circumstances. Extensions will not be granted for PTRs. The reports are published by the House Clerk and the Senate's electronic filing system, in value ranges rather than exact dollar amounts — which is why every congressional trade you see on this site is a range, not a price.
Source: 5 U.S.C. §13105(l) (periodic transaction reports); 5 U.S.C. §13106(d)(1) (late filing fee); House Committee on Ethics, Periodic Transaction Report Form and Instructions (Due Date of Filing; Extensions; Penalties).
3. Is it legal to trade based on congressional disclosures?
The reports are public, but the statute draws a line around how they may be used. 5 U.S.C. §13107(c)(1) makes it unlawful to obtain or use a report for any unlawful purpose; for any commercial purpose, other than by news and communications media for dissemination to the general public; for determining or establishing anyone's credit rating; or for use in soliciting money for any political, charitable, or other purpose. Two consequences follow. First, once a trade is disclosed, the information is public — trading on public information is not trading on inside information. Second, the statute expressly leaves room for news and communications media disseminating reports to the general public, while the commercial-purpose bar covers other commercial uses. This site publishes disclosure data as editorial news content; readers building commercial products on disclosure data should read §13107(c)(1) itself. Violations can draw a civil penalty of up to $10,000, assessed by a court in an action brought by the Attorney General (§13107(c)(2)).
Source: 5 U.S.C. §13107(b)–(c)(2). Full text (govinfo, GPO)
4. How do I know if an insider sale was part of a 10b5-1 plan?
Look for the checkbox. For reports filed on or after April 1, 2023, Forms 4 and 5 carry a mandatory checkbox requiring the filer to indicate whether the reported transaction was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c), and the filer must also disclose the plan's adoption date in the Explanation of Responses. A checked box plus an adoption date lets you test the cooling-off period in the next question. An unchecked box means the filer did not claim the 10b5-1 defense for that trade. One honest limit: on GetCoattail, plan status is not currently a parsed field in the Form 4 data — the checkbox and footnote exist on the form, but our dataset does not yet extract them, so you cannot filter our insider pages by plan status today.
Source: Form 4, General Instructions, Instruction 10 (Rule 10b5-1(c) Transaction Indication); 17 CFR §240.10b5-1(c); SEC Release Nos. 33-11138 and 34-96492 (December 14, 2022).
5. Can an officer own a large stake, and how do they sell without an insider-trading accusation?
Yes — officers and directors routinely hold large stakes. The standard route is a written Rule 10b5-1 trading plan adopted in good faith at a time when the person is unaware of material nonpublic information, with the trades specified in advance by amount, price, or formula, or delegated to someone without that information. The plan cannot start trading immediately: for directors and Section 16 officers, the cooling-off period is the later of 90 days after adoption and two business days after the disclosure of the issuer's financial results for the fiscal quarter in which the plan was adopted, capped at 120 days; for other persons it is 30 days. Directors and officers must also certify in the plan that they were not aware of material nonpublic information and are acting in good faith. The plan does not bless every sale — a plan adopted while holding inside information, or operated with influence over its trades, loses the defense.
Source: 17 CFR §240.10b5-1(c)(1)(ii)(B).
6. When does an insider have to disclose a trade?
Fast. Directors, officers, and beneficial owners of more than 10 percent of a registered equity class must file Form 4 before the end of the second business day following the day the transaction was executed. That two-day clock is why insider data on this site is nearly current while congressional and fund data lag by weeks. For completeness: Form 3 is the initial ownership statement, due within 10 days of becoming an insider, and Form 5 is the annual catch-up for transactions eligible for deferred reporting, due within 45 days after the issuer's fiscal year-end.
Source: 15 U.S.C. §78p(a)(2)(C); 17 CFR §240.16a-3(a), (g)(1).
7. What is the difference between Form 144 and Form 4?
One is an intention, the other is a completed fact. Form 144 is a notice of proposed sale: when the amount to be sold in reliance on Rule 144 during any three-month period exceeds 5,000 shares or $50,000 in aggregate sale price, the seller transmits Form 144 for filing concurrently with placing the order with a broker or executing the sale directly with a market maker. Form 4, by contrast, reports an actual change in beneficial ownership after it executes. So a Form 144 tells you a sale is planned; a Form 4 tells you it happened. Many planned sales never convert — on this site's full Form 144 file, 83.9% converted to an actual sale within 90 days — which is why we never treat a 144 as a sale. Our earlier study of the collision between proposed and completed insider sales is here.
Source: 17 CFR §230.144(h)(1), (3); 17 CFR §240.16a-3(g)(1).
8. Where do I find Form 13F?
On the SEC's EDGAR database, free. Every institutional investment manager exercising investment discretion over accounts holding Section 13(f) securities with an aggregate fair market value of at least $100 million on the last trading day of any month must file Form 13F within 45 days after the last day of each calendar quarter. The filing shows holdings as of the quarter's last day — so by the time you read it, the positions are at least 45 days old and possibly a full quarter older. That lag is structural, not a data delay on our end: every 13F on this site carries its quarter-end date for exactly this reason. Start at the SEC's EDGAR full-text search.
Source: 17 CFR §240.13f-1(a)(1); 17 CFR §232.101(a)(1)(iii) (EDGAR electronic filing); SEC Fast Answers: Form 13F.
9. How are options reported on Form 13F?
Only the long side, and only if the option is on the SEC's Official List of Section 13(f) Securities. A manager may report put or call options it holds that appear on the Official List; it must not report put or call options it has written, and it must not subtract written options from a long position in the same issuer. Practically: an options line on a 13F is a long options position, not shares — never add it to the common-stock line, and never read it as a hedge, because the offsetting written leg is invisible by design.
Source: Form 13F Special Instructions (17 CFR §249.325); SEC Form 13F FAQ, Questions 43–44.
10. What about short positions on Form 13F?
They are not there. Form 13F reports long holdings only: a manager must not include short positions, and must not subtract a short position from a long position in the same security — it reports only the long position. A fund that is long 500,000 shares and short 400,000 of the same stock therefore appears as a 500,000-share holder. That is the single most common misreading of 13F data: a 13F shows long exposure, never net exposure, and a stock that looks heavily owned may be nearly flat on a net basis. Any conviction reading of a 13F that ignores this is reading half the book.
Source: Form 13F Special Instructions; SEC Form 13F FAQ, Question 41; 17 CFR §240.13f-1(c) (securities universe).
What the rules don't tell you
Three limits apply to everything above. First, timing: Form 4 arrives in two business days, a congressional report in up to 45 days, a 13F up to 45 days after quarter-end. The filings are history with different lags, so compare them only with their dates attached. Second, motive: no filing states why someone traded. Exits, buys, and holdings need measurement against what happened next — that is what our Track Record page does. Third, currency: rules are amended — the Form 4 checkbox dates only to 2022, and the Official List of Section 13(f) Securities updates every quarter. Check the current text through the links above; this article's citations were checked on October 31, 2026.
Sources
- STOCK Act, Pub. L. 112-105 (S. 2038), §4 — bill text (House)
- House Committee on Ethics, Periodic Transaction Report Form and Instructions — form and instructions (PDF)
- 5 U.S.C. §13105(l), §13106(d)(1), §13107(b)–(c)(2) — §13107 full text (govinfo, GPO)
- Form 4, General Instructions, Instruction 10 — form (SEC)
- 17 CFR §240.10b5-1(c) — eCFR full text
- 17 CFR §240.16a-3(a), (g)(1) — eCFR full text
- 17 CFR §230.144(h)(1), (3) — eCFR full text
- 17 CFR §240.13f-1(a)(1) — full text
- SEC Fast Answers: Form 13F — SEC Investor.gov
- SEC Form 13F FAQ — official FAQ page
- SEC EDGAR — full-text search
Data and citations: statutes, rules, and forms as linked above, checked October 31, 2026. Related reading: Methodology and Track Record. For education only — not investment advice, and not legal advice.