Flock blog
Reading regulatory filings, sourced and dated.
Plain-English guides to the public filings Flock tracks: 13F reports, NSE and BSE shareholding patterns, bulk and block deals, and FII/DII flows. Every claim links to its source. Research, not advice.
Form 4 vs Form 144: insider report vs sale notice
Form 4 vs Form 144: a Form 4 reports an insider trade after it happens; a Form 144 is an affiliate's advance notice of intent to sell. How the two SEC filings differ. Not advice.
What is a Schedule 13G filing? A plain guide (2026)
A Schedule 13G is the short-form SEC filing passive holders of over 5% of a US company file. Who files it, the 2024 deadlines, and how it differs from a 13D. Not advice.
What is a Form 5 filing? SEC insider annual report
A Form 5 filing is the annual SEC report of insider trades exempt from or missed on Form 4. Who files it, the 45-day deadline, and when it is not needed. Not advice.
What is an N-PORT filing? Fund holdings, explained
An N-PORT filing is a US fund's SEC portfolio-holdings report. What it discloses, the 60-day public lag, and how the delayed 2024 monthly rule works. Not advice.
What is a 6-K filing? Foreign issuer reports (2026)
A 6-K filing is how a foreign private issuer relays home-country news to the SEC. What it covers, why it is furnished not filed, and how it differs from an 8-K. Not advice.
What is Form D? SEC private placement notice
Form D is the brief SEC notice a company files after a Regulation D private placement. Who files it, the 15-day deadline, and what it does and does not mean. Not advice.
Schedule 13D vs 13G: activist vs passive filings
Schedule 13D vs 13G: both trigger at 5% of a US company, but one is for activists and one for passive holders. The deadlines, the intent test, and what each shows. Not advice.
N-PORT vs 13F: fund holdings vs manager filings
N-PORT vs 13F: one shows a US fund's complete portfolio, the other a manager's long US equities. Who files each, the timing, and which to read. Not advice.
6-K vs 8-K: foreign vs US current reports
6-K vs 8-K: the 8-K is a US company's current report, the 6-K a foreign issuer's relay of home-country news. Who files each, the timing, and how they differ. Not advice.
Institutional ownership tracker: how to compare
An institutional ownership tracker shows how much of a stock funds hold and how it shifts. What the filings are, how to compare tools, and the lag limits. Not advice.
HoldingsChannel alternative: how to compare
Looking for a HoldingsChannel alternative for tracking 13F holdings? What these tools do, how to compare them factually, and the shared 13F lag. Not advice.
What is a 20-F filing? Foreign issuer annual report
A 20-F filing is the annual report a foreign private issuer files with the SEC. What it contains, who must file, and the four-month deadline. Not advice.
The Smart Money Digest
A free weekly email of notable disclosure activity — every line with its filing date and source link. No advice, just filings. Unsubscribe anytime.