Regulatory disclosures
An SEC 13F tracker that shows the limits, not just the holdings.
13F filings are the closest thing to seeing inside a hedge fund portfolio — and they are also 45 days stale, long-only, and silent on hedges. A useful tracker shows both sides. MEDGE pairs 13F with the disclosures that fill its gaps: Form 4 insider trades, SC 13D/G activist stakes and FCA short interest.
The four disclosures, side by side
| Filing | Who files | Deadline | What it shows |
|---|---|---|---|
| 13F-HR | Managers ≥ $100M US equities | 45 days after quarter end | Long US equity + option positions |
| Form 4 | Corporate insiders | 2 business days | Insider buys / sells, with price + size |
| SC 13D/G | Holders crossing 5% | Days, varies by form | Activist / passive stakes ≥ 5% |
| FCA SPR | Short sellers ≥ 0.5% (UK) | 1 business day | Per-fund net shorts on UK names |
Frequently asked questions
- What is a 13F filing?
- A quarterly SEC disclosure required of institutional investment managers with at least $100 million in US equity assets. It lists their long US-listed equity and option positions as of quarter end, and must be filed within 45 days — so the snapshot is always at least a month and a half old by the time it is public.
- Can I see what hedge funds are shorting from 13F?
- No. 13F covers long positions only — short positions are not disclosed in the US at the individual-fund level. That is why MEDGE pairs 13F with the UK FCA Short Position Register, which does publish per-fund net shorts above 0.5% on UK-listed names, plus SC 13D/G filings for activist stakes above 5%.
- What is Form 4 and why does it matter more than 13F for timing?
- Form 4 discloses trades by corporate insiders — officers, directors, 10% owners — and must be filed within two business days, versus 45 days for 13F. Open-market insider purchases (transaction code P) are the strongest of these signals, because insiders buy for one reason but sell for many. MEDGE parses each filing and filters out routine 10b5-1 planned sales.
- How current is the data in MEDGE?
- MEDGE refreshes SEC EDGAR data daily: new Form 4 filings appear within a day of hitting EDGAR, and 13F holdings update as each quarterly filing lands. The inherent disclosure lags (2 days for Form 4, up to 45 for 13F) come from the regulation itself — no tool can beat them.
- Should I copy hedge fund 13F portfolios?
- The evidence is mixed and this is not advice either way. A 13F clone buys positions at least 45 days stale, misses shorts and hedges entirely, and cannot see position sizing changes between quarters. 13F data is most useful as context — crowding, conviction changes, new entries by managers you follow — rather than a copy trade.
Related
The live 13F + Form 4 tracker is inside MEDGE.
Insiders & Funds parses EDGAR daily: 13F holdings, Form 4 trades with 10b5-1 filtering, SC 13D/G stakes and FCA short interest, per ticker. Pro tier — 7-day free trial, cancel anytime.
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