https://www.bourse.pl/blog/Plain-English guides to Congress stock trades, SEC Form 4 insider filings and 13F hedge fund holdings: how the data works, what it means and what it cannot tell you.en https://www.bourse.pl/blog/track-michael-burry-scion-portfolio-13f/https://www.bourse.pl/blog/track-michael-burry-scion-portfolio-13f/Sun, 08 Nov 2026 12:00:00 GMTLearn how to find Scion Asset Management on SEC EDGAR, read put options correctly, and adjust your strategy for the 45-day reporting lag. https://www.bourse.pl/blog/form-4-code-a-explained/https://www.bourse.pl/blog/form-4-code-a-explained/Sat, 07 Nov 2026 12:00:00 GMTLearn what Form 4 Code A means on SEC filings. Discover how to tell the difference between executive stock compensation awards and open market cash purchases. https://www.bourse.pl/blog/finding-open-price-after-form-144-filing/https://www.bourse.pl/blog/finding-open-price-after-form-144-filing/Sat, 07 Nov 2026 12:00:00 GMTLearn how to find the next trading day's open price after an insider files SEC Form 144. Track initial market reaction to proposed restricted stock sales. https://www.bourse.pl/blog/form-4-code-i-explained/https://www.bourse.pl/blog/form-4-code-i-explained/Sat, 07 Nov 2026 12:00:00 GMTLearn what Form 4 transaction Code I means. See how insiders tender shares directly back to the company and verify pricing terms using SEC EDGAR filings. https://www.bourse.pl/blog/identify-ceo-trades-sec-form-4/https://www.bourse.pl/blog/identify-ceo-trades-sec-form-4/Fri, 06 Nov 2026 12:00:00 GMTLearn how to spot significant CEO trades on SEC Form 4. Understand the details and implications of these filings. https://www.bourse.pl/blog/amended-form-144-insider-selling-changes/https://www.bourse.pl/blog/amended-form-144-insider-selling-changes/Thu, 05 Nov 2026 12:00:00 GMTLearn how to spot amended Form 144 filings, track insider sale updates, and use the changes to stay informed about upcoming stock moves. https://www.bourse.pl/blog/form-4-codes-s-vs-p-explained/https://www.bourse.pl/blog/form-4-codes-s-vs-p-explained/Thu, 05 Nov 2026 12:00:00 GMTLearn the difference between Form 4 codes S and P. Discover why not every insider sale is bearish and why some purchases are not open market buys. https://www.bourse.pl/blog/track-congressional-ptr-amendment/https://www.bourse.pl/blog/track-congressional-ptr-amendment/Thu, 05 Nov 2026 12:00:00 GMTStep‑by‑step guide to locate, read and record amendments to a Congressional Periodic Transaction Report, so your spreadsheet stays current. https://www.bourse.pl/blog/find-congressional-ptr-amendments/https://www.bourse.pl/blog/find-congressional-ptr-amendments/Wed, 04 Nov 2026 12:00:00 GMTStep‑by‑step guide to locate periodic transaction report (PTR) amendments, understand why they matter, and compare them with the original filing. https://www.bourse.pl/blog/how-to-find-latest-13f-filing-hedge-fund/https://www.bourse.pl/blog/how-to-find-latest-13f-filing-hedge-fund/Wed, 04 Nov 2026 12:00:00 GMTLearn how to locate the most recent SEC Form 13F filing for any hedge fund using free public tools and understand what the filing date reveals. https://www.bourse.pl/blog/calculate-return-after-10b5-1-sale/https://www.bourse.pl/blog/calculate-return-after-10b5-1-sale/Wed, 04 Nov 2026 12:00:00 GMTLearn how to calculate the one-month stock performance following a 10b5-1 insider sale to better understand the timing of these pre-planned transactions. https://www.bourse.pl/blog/spot-form-4-trade-short-swing-rule/https://www.bourse.pl/blog/spot-form-4-trade-short-swing-rule/Wed, 04 Nov 2026 12:00:00 GMTLearn to identify insider sales on Form 4 that could fall under Section 16(b). Spot timing clues, transaction codes, and ownership changes that matter. https://www.bourse.pl/blog/how-to-spot-10b5-1-checkbox-form-4/https://www.bourse.pl/blog/how-to-spot-10b5-1-checkbox-form-4/Tue, 03 Nov 2026 12:00:00 GMTLearn where the 10b5‑1 box appears on SEC Form 4, what a pre‑programmed trade means, and how to follow its execution using free public data. https://www.bourse.pl/blog/form-4-amended-transactions-corrections/https://www.bourse.pl/blog/form-4-amended-transactions-corrections/Tue, 03 Nov 2026 12:00:00 GMTSee an amended Form 4? Learn how to distinguish between simple reporting errors and actual price adjustments to avoid misinterpreting insider data. https://www.bourse.pl/blog/what-is-an-amended-form-4-and-how-to-read-corrections/https://www.bourse.pl/blog/what-is-an-amended-form-4-and-how-to-read-corrections/Tue, 03 Nov 2026 12:00:00 GMTLearn why insiders file Form 4/A amendments, how to spot changed share counts or transaction codes, and what corrections mean for your research. https://www.bourse.pl/blog/verify-10b5-1-trading-plan-form-4/https://www.bourse.pl/blog/verify-10b5-1-trading-plan-form-4/Tue, 03 Nov 2026 12:00:00 GMTLearn step‑by‑step how to locate the 10b5‑1 checkbox on Form 4, interpret its meaning, and assess the credibility of an insider trade. https://www.bourse.pl/blog/sec-form-4-multiple-transaction-codes-explained/https://www.bourse.pl/blog/sec-form-4-multiple-transaction-codes-explained/Mon, 02 Nov 2026 12:00:00 GMTConfused by multiple transaction codes on a Form 4? Learn how to decode combined insider trades like option exercises followed by immediate sales. https://www.bourse.pl/blog/form-4-code-c-conversion-of-derivative-securities/https://www.bourse.pl/blog/form-4-code-c-conversion-of-derivative-securities/Mon, 02 Nov 2026 12:00:00 GMTLearn what SEC Form 4 Code C means. Understand how to distinguish between a derivative conversion and a standard open market stock purchase by an insider. https://www.bourse.pl/blog/how-to-find-insider-trades-on-twitter-and-telegram/https://www.bourse.pl/blog/how-to-find-insider-trades-on-twitter-and-telegram/Mon, 02 Nov 2026 12:00:00 GMTLearn how automated social bots stream SEC Form 4 and STOCK Act disclosures on Twitter and Telegram for real-time alerts on public filings. https://www.bourse.pl/blog/why-insiders-buy-after-earnings-drops/https://www.bourse.pl/blog/why-insiders-buy-after-earnings-drops/Sun, 01 Nov 2026 12:00:00 GMTLearn why corporate insiders buy shares after bad earnings reports, how to verify the trade on SEC Form 4, and what signals actually matter. https://www.bourse.pl/blog/form-4-code-g-explained-stock-gifts-vs-open-market-sales/https://www.bourse.pl/blog/form-4-code-g-explained-stock-gifts-vs-open-market-sales/Sun, 01 Nov 2026 12:00:00 GMTLearn what transaction code G means on SEC Form 4. See how to spot stock gifts to charities or family so you do not confuse them with open market sales. https://www.bourse.pl/blog/form-4-checkbox-for-10b5-1-how-to-spot-it/https://www.bourse.pl/blog/form-4-checkbox-for-10b5-1-how-to-spot-it/Fri, 30 Oct 2026 12:00:00 GMTLearn how to verify the SEC Form 4 10b5-1 checkbox, find the plan adoption date, and track pre-scheduled insider stock sales accurately. https://www.bourse.pl/blog/spot-form-4-trade-earnings-beat/https://www.bourse.pl/blog/spot-form-4-trade-earnings-beat/Thu, 29 Oct 2026 12:00:00 GMTLearn a step‑by‑step method to filter recent Form 4 purchases for companies about to report earnings and spot red flags that could hint at a beat. https://www.bourse.pl/blog/reading-form-144-insider-planned-sale/https://www.bourse.pl/blog/reading-form-144-insider-planned-sale/Wed, 28 Oct 2026 12:00:00 GMTLearn how to locate Form 144 filings, read the key fields, track the sale timeline, and watch market activity after an insider announces a future trade. https://www.bourse.pl/blog/short-swing-profit-rule-section-16b-explained/https://www.bourse.pl/blog/short-swing-profit-rule-section-16b-explained/Wed, 28 Oct 2026 12:00:00 GMTLearn how Section 16(b) prevents corporate insiders from making quick profits by requiring them to return gains from trades made within six months. https://www.bourse.pl/blog/form-4-discretionary-trade-meaning/https://www.bourse.pl/blog/form-4-discretionary-trade-meaning/Tue, 27 Oct 2026 12:00:00 GMTLearn to distinguish between planned, mandatory, and discretionary trades on SEC Form 4. Understand which insider moves signal conviction vs. routine. https://www.bourse.pl/blog/insider-purchases-before-earnings-surprise/https://www.bourse.pl/blog/insider-purchases-before-earnings-surprise/Tue, 27 Oct 2026 12:00:00 GMTLearn how to filter Form 4 filings for open-market purchases made right before blackout periods to find potential earnings surprises. https://www.bourse.pl/blog/how-to-check-if-insider-stock-is-pledged-as-collateral-form-4/https://www.bourse.pl/blog/how-to-check-if-insider-stock-is-pledged-as-collateral-form-4/Tue, 27 Oct 2026 12:00:00 GMTLearn how to read SEC Form 4 footnotes to check if company insiders have pledged their stock shares as collateral for bank loans or margin accounts. https://www.bourse.pl/blog/how-to-search-insider-trades-on-edgar/https://www.bourse.pl/blog/how-to-search-insider-trades-on-edgar/Tue, 27 Oct 2026 12:00:00 GMTLearn how to use the SEC EDGAR search bar to locate and isolate Form 4 insider trading filings for any public company ticker symbol quickly. https://www.bourse.pl/blog/how-to-spot-a-form-4-trade-involving-a-restricted-stock-unit/https://www.bourse.pl/blog/how-to-spot-a-form-4-trade-involving-a-restricted-stock-unit/Tue, 27 Oct 2026 12:00:00 GMTLearn how to identify Restricted Stock Unit (RSU) settlements on SEC Form 4 and avoid confusing routine stock vesting with open-market insider buying. https://www.bourse.pl/blog/form-4-code-f-explained/https://www.bourse.pl/blog/form-4-code-f-explained/Mon, 26 Oct 2026 12:00:00 GMTLearn what Form 4 Code F means, how tax withholding works when insider equity vests, and how to separate automatic tax sales from open-market dumps. https://www.bourse.pl/blog/how-to-calculate-insider-ownership-stake-form-4/https://www.bourse.pl/blog/how-to-calculate-insider-ownership-stake-form-4/Mon, 26 Oct 2026 12:00:00 GMTLearn how to calculate an insider's exact ownership stake using data from a single SEC Form 4 filing with this practical step-by-step investor guide. https://www.bourse.pl/blog/spot-form-4-trade-before-breakout/https://www.bourse.pl/blog/spot-form-4-trade-before-breakout/Mon, 26 Oct 2026 12:00:00 GMTLearn a step‑by‑step method to compare a new Form 4 filing with recent price action and decide if an insider bought before a breakout. https://www.bourse.pl/blog/how-to-find-board-member-stock-purchases-sec-form-4/https://www.bourse.pl/blog/how-to-find-board-member-stock-purchases-sec-form-4/Mon, 26 Oct 2026 12:00:00 GMTLearn how to filter SEC Form 4 filings to spot open market stock purchases made by independent board members using their own cash. https://www.bourse.pl/blog/rsu-settlement-form-4-explained/https://www.bourse.pl/blog/rsu-settlement-form-4-explained/Mon, 26 Oct 2026 12:00:00 GMTLearn why RSU vesting on Form 4 is compensation, not a bullish signal. Distinguish between automatic settlements and voluntary open market purchases. https://www.bourse.pl/blog/form-8-k-material-event-matters/https://www.bourse.pl/blog/form-8-k-material-event-matters/Mon, 26 Oct 2026 12:00:00 GMTUnderstanding what a Form 8-K 'material event' means and why it matters for investors. https://www.bourse.pl/blog/form-4-code-m-vs-code-p/https://www.bourse.pl/blog/form-4-code-m-vs-code-p/Sat, 24 Oct 2026 12:00:00 GMTLearn the difference between SEC Form 4 Transaction Code M and Code P. Discover why open-market purchases show true bullish intent over option exercises. https://www.bourse.pl/blog/suspicious-insider-sale-form-4/https://www.bourse.pl/blog/suspicious-insider-sale-form-4/Sat, 24 Oct 2026 12:00:00 GMTLearn the key red flags on SEC Form 4 that suggest an insider may be selling under pressure. Practical tips for retail investors. https://www.bourse.pl/blog/how-to-find-option-grants-on-form-4/https://www.bourse.pl/blog/how-to-find-option-grants-on-form-4/Sat, 24 Oct 2026 12:00:00 GMTLearn how to locate derivative security tables on SEC Form 4 and understand the vital difference between option grant dates and reporting dates. https://www.bourse.pl/blog/what-is-a-voluntary-insider-filing/https://www.bourse.pl/blog/what-is-a-voluntary-insider-filing/Sat, 24 Oct 2026 12:00:00 GMTLearn why corporate insiders file Form 4s even when not required by law. Discover how to identify voluntary filings like gifts and transfers. https://www.bourse.pl/blog/form-4-code-j-explained/https://www.bourse.pl/blog/form-4-code-j-explained/Sat, 24 Oct 2026 12:00:00 GMTLearn what Code J means on an SEC Form 4. Understand why this 'Other' transaction code often covers spin-offs and transfers rather than market sales. https://www.bourse.pl/blog/insider-sold-then-bought-stock-pattern-changes/https://www.bourse.pl/blog/insider-sold-then-bought-stock-pattern-changes/Sat, 24 Oct 2026 12:00:00 GMTExecutives often sell stock for taxes and buy later for conviction. Learn how to distinguish between routine tax sales and genuine open market purchases. https://www.bourse.pl/blog/form-4-footnotes-explained/https://www.bourse.pl/blog/form-4-footnotes-explained/Fri, 23 Oct 2026 12:00:00 GMTLearn how to read Form 4 footnotes. Spot option exercises, weighted average execution prices, indirect trust ownership, and 10b5-1 plan details. https://www.bourse.pl/blog/form-4-direct-vs-indirect-ownership/https://www.bourse.pl/blog/form-4-direct-vs-indirect-ownership/Fri, 23 Oct 2026 12:00:00 GMTLearn how Box 5 and Box 6 on Form 4 show direct and indirect ownership when insiders use trusts, LLCs, or family members. https://www.bourse.pl/blog/form-13f-what-it-does-not-show/https://www.bourse.pl/blog/form-13f-what-it-does-not-show/Sat, 17 Oct 2026 12:00:00 GMTForm 13F filings are often misunderstood. Learn the six key limitations of this data so you can accurately interpret institutional investment portfolios. https://www.bourse.pl/blog/mar-article-19-managers-transactions/https://www.bourse.pl/blog/mar-article-19-managers-transactions/Sat, 17 Oct 2026 12:00:00 GMTLearn how Article 19 of the Market Abuse Regulation governs share trade reporting for managers in Poland and the EU, including deadlines and thresholds. https://www.bourse.pl/blog/insider-buying-vs-congress-buying/https://www.bourse.pl/blog/insider-buying-vs-congress-buying/Sat, 17 Oct 2026 12:00:00 GMTCompare insider buying and Congress buying to learn which trading signal offers superior data precision, reporting speed, and overall reliability. https://www.bourse.pl/blog/how-to-read-an-earnings-report/https://www.bourse.pl/blog/how-to-read-an-earnings-report/Fri, 16 Oct 2026 12:00:00 GMTLearn how to analyze an earnings report in ten minutes by focusing on revenue, margins, cash flow, and the key differences between GAAP and adjusted EPS. https://www.bourse.pl/blog/free-sources-for-insider-and-congress-trades/https://www.bourse.pl/blog/free-sources-for-insider-and-congress-trades/Thu, 15 Oct 2026 12:00:00 GMTLearn how to find free government data on insider, Congress, and fund trades. Discover official SEC and legislative sources to verify market activity. https://www.bourse.pl/blog/how-late-is-congress-trade-data/https://www.bourse.pl/blog/how-late-is-congress-trade-data/Wed, 14 Oct 2026 12:00:00 GMTLearn how to measure disclosure lag in congressional trade data. Understand STOCK Act deadlines, filing delays, and why timing matters for analysis. https://www.bourse.pl/blog/short-interest-explained/https://www.bourse.pl/blog/short-interest-explained/Tue, 13 Oct 2026 12:00:00 GMTLearn how short interest works, what metrics like days to cover reveal, and why reporting delays make it a weaker trading signal than it looks. https://www.bourse.pl/blog/proxy-statement-def-14a-explained/https://www.bourse.pl/blog/proxy-statement-def-14a-explained/Mon, 12 Oct 2026 12:00:00 GMTLearn how to read a proxy statement (DEF 14A) to evaluate executive compensation, board governance, and insider ownership at public companies. https://www.bourse.pl/blog/10-k-vs-10-q-annual-and-quarterly-reports/https://www.bourse.pl/blog/10-k-vs-10-q-annual-and-quarterly-reports/Sun, 11 Oct 2026 12:00:00 GMTThe 10-K is the audited annual report; the 10-Q is the unaudited quarterly update. Learn what each contains, when they are due, and which sections are worth your time. https://www.bourse.pl/blog/what-is-sec-form-8-k/https://www.bourse.pl/blog/what-is-sec-form-8-k/Sat, 10 Oct 2026 12:00:00 GMTLearn what an SEC Form 8-K is and how companies use this filing to report major events. Understand the key items to watch for in these official disclosures. https://www.bourse.pl/blog/how-to-read-sec-form-4/https://www.bourse.pl/blog/how-to-read-sec-form-4/Fri, 09 Oct 2026 12:00:00 GMTLearn how to read an SEC Form 4 and understand insider transaction codes. This guide helps you identify genuine stock purchases and filter out paperwork noise. https://www.bourse.pl/blog/stock-act-congress-trade-disclosures/https://www.bourse.pl/blog/stock-act-congress-trade-disclosures/Fri, 09 Oct 2026 12:00:00 GMTWhat the STOCK Act requires members of Congress to disclose, how long they can wait, why amounts appear as ranges, and what that means for anyone reading the data. https://www.bourse.pl/blog/insider-cluster-buying/https://www.bourse.pl/blog/insider-cluster-buying/Fri, 09 Oct 2026 12:00:00 GMTWhat insider cluster buying is, why it is considered a stronger signal than a single purchase, how to define it, and its limits. https://www.bourse.pl/blog/what-is-form-13f/https://www.bourse.pl/blog/what-is-form-13f/Fri, 09 Oct 2026 12:00:00 GMTForm 13F explained: who has to file it, what it contains, the 45-day delay, and the big blind spots such as short positions, non-US stocks and trade timing. https://www.bourse.pl/blog/do-congress-members-beat-the-market/https://www.bourse.pl/blog/do-congress-members-beat-the-market/Fri, 09 Oct 2026 12:00:00 GMTLearn what academic studies reveal about whether members of Congress beat the market through stock trading and why the research findings remain mixed. https://www.bourse.pl/blog/how-to-track-congress-and-insider-trades/https://www.bourse.pl/blog/how-to-track-congress-and-insider-trades/Fri, 09 Oct 2026 12:00:00 GMTA practical guide to the free public sources behind Congress stock trades, SEC Form 4 insider filings and 13F fund holdings, and how to combine them. https://www.bourse.pl/blog/rule-10b5-1-trading-plans/https://www.bourse.pl/blog/rule-10b5-1-trading-plans/Fri, 09 Oct 2026 12:00:00 GMTWhat a Rule 10b5-1 plan is, how the 2023 rule changes (cooling-off periods, certifications) work, and how to read the 10b5-1 checkbox on an insider's Form 4. https://www.bourse.pl/blog/how-to-read-congress-periodic-transaction-report/https://www.bourse.pl/blog/how-to-read-congress-periodic-transaction-report/Fri, 09 Oct 2026 12:00:00 GMTLearn how to read a congressional periodic transaction report by understanding key filing fields, tracking exact dates, and avoiding common misreadings. https://www.bourse.pl/blog/insider-selling-what-it-tells-you/https://www.bourse.pl/blog/insider-selling-what-it-tells-you/Fri, 09 Oct 2026 12:00:00 GMTWhy insider sales are noisier than insider purchases, which sales are routine, and the patterns (clusters, size, timing) that deserve a closer look. https://www.bourse.pl/blog/schedule-13d-13g-explained/https://www.bourse.pl/blog/schedule-13d-13g-explained/Fri, 09 Oct 2026 12:00:00 GMTWhat Schedules 13D and 13G are, when an investor must file, how they differ from Form 13F, and why activist filings move stocks. https://www.bourse.pl/blog/legal-vs-illegal-insider-trading/https://www.bourse.pl/blog/legal-vs-illegal-insider-trading/Fri, 09 Oct 2026 12:00:00 GMTWhy the insider trades in public filings are legal, what makes insider trading illegal, how the six-month short-swing rule works, and how the STOCK Act applies to Congress. https://www.bourse.pl/blog/how-to-analyze-13f-changes/https://www.bourse.pl/blog/how-to-analyze-13f-changes/Fri, 09 Oct 2026 12:00:00 GMTLearn a step‑by‑step method to compare two 13F filings, classify new, added, trimmed and exited positions, size their impact, and avoid common pitfalls. https://www.bourse.pl/blog/mistakes-reading-insider-trading-data/https://www.bourse.pl/blog/mistakes-reading-insider-trading-data/Fri, 09 Oct 2026 12:00:00 GMTThe most common errors when reading Form 4 data, from counting grants as buys to ignoring the 10b5-1 flag, and how to avoid each one. https://www.bourse.pl/blog/form-3-form-4-form-5-differences/https://www.bourse.pl/blog/form-3-form-4-form-5-differences/Fri, 09 Oct 2026 12:00:00 GMTLearn the differences between SEC Form 3, Form 4, and Form 5 filings. This guide explains when each is required and which one provides useful trading signals. https://www.bourse.pl/blog/form-144-notice-of-proposed-sale/https://www.bourse.pl/blog/form-144-notice-of-proposed-sale/Fri, 09 Oct 2026 12:00:00 GMTWhat Form 144 is, who must file it, how it differs from Form 4, and why it can show a planned insider sale before the sale is reported. https://www.bourse.pl/blog/sec-edgar-beginners-guide/https://www.bourse.pl/blog/sec-edgar-beginners-guide/Fri, 09 Oct 2026 12:00:00 GMTA practical introduction to SEC EDGAR: searching companies and filers, filtering by form type, using full-text search and the free API, and the rules for automated access. https://www.bourse.pl/blog/research-a-stock-with-public-filings/https://www.bourse.pl/blog/research-a-stock-with-public-filings/Fri, 09 Oct 2026 12:00:00 GMTA repeatable process for using insider filings, 13F holdings, Congress trades and company reports together, instead of reacting to a single headline. https://www.bourse.pl/blog/insider-trading-glossary/https://www.bourse.pl/blog/insider-trading-glossary/Fri, 09 Oct 2026 12:00:00 GMTPlain-English definitions of the terms used in insider filings, Congress trade disclosures and 13F reports, from 10b5-1 to Form 4 and MNPI.