Nydar's institutional holdings widget tracks quarterly 13F filings from 500+ funds including position changes and new entries

Nydar's Institutional Holdings widget aggregates SEC 13F, 13D/13G, and Form 4 filings from 500+ hedge funds, mutual funds, and pension funds into one view — showing ownership percentages, quarterly position changes, and insider transactions for any US-listed stock.
The predictive value of insider trading data was established by Lakonishok & Lee in "Are Insider Trades Informative?" (Review of Financial Studies, vol. 14, no. 1, 2001, pp. 79-111), which found that insider purchases predict positive abnormal returns of 4-7% over the following 12 months. For institutional herding behaviour, see Nofsinger & Sias, "Herding and Feedback Trading by Institutional and Individual Investors" (The Journal of Finance, vol. 54, no. 6, 1999, pp. 2263-2295). The impact of activist 13D filings on stock prices is documented in Brav et al., "Hedge Fund Activism, Corporate Governance, and Firm Performance" (The Journal of Finance, vol. 63, no. 4, 2008, pp. 1729-1775).
Nydar aggregates quarterly filings required for institutions managing $100M+. Shows exact holdings.
Nydar tracks filings when an investor acquires 5%+ of a company. Shows activist positions.
Nydar displays Form 4 filings showing executive and director trades.
Nydar calculates the percentage of shares held by institutions. Higher % means more institutional interest.
Nydar tracks the count of institutions holding the stock. More holders = more diversified ownership.
Nydar shows net buying or selling by institutions quarter over quarter, surfacing sentiment shifts.
Nydar displays the largest institutional shareholders and their position sizes.
Quarterly changes in institutional ownership tell a story. Here's how Nydar helps you read it:
A fund selling stock doesn't always mean they're bearish. They might be rebalancing, meeting redemptions, or trimming to stay within risk limits. Look at the broader pattern across multiple funds, not individual moves.
Nydar's cluster detection flags when 3+ respected funds initiate new positions in the same stock during the same quarter. This suggests independent analysis arrived at the same bullish conclusion.
When Nydar's data shows company insiders buying alongside increasing institutional ownership, it's one of the strongest bullish signals. Insiders know the business best.
A 13D filing means someone took a 5%+ stake with intent to influence the company. This often precedes significant changes and can be a catalyst for stock price appreciation.
Sometimes the smart money is wrong, or they buy early. Use Nydar's quarterly comparison to track whether institutional buying coincided with price increases (following the smart money) or decreases (they were early/wrong).
Deepen your understanding with Nydar's learning guides:
| Feature | Institutional Holdings | Congressional Trading | Insider Clusters | Activist Tracker | Dark Pool |
|---|---|---|---|---|---|
| Primary Focus | 13F fund holdings | Lawmaker stock trades | Multi-insider buy clusters | 13D activist campaigns | Off-exchange block trades |
| Data Source | SEC 13F filings | STOCK Act disclosures | SEC Form 4 filings | SEC 13D/13G filings | FINRA ATS data |
| Update Frequency | Quarterly (45-day lag) | Within 45 days of trade | Within 2 business days | Within 10 days of 5% | T+1 settlement |
| Coverage | 500+ funds tracked | 535 members of Congress | All SEC Form 4 filers | Activist 5%+ holders | 40+ ATS venues |
| Best For | Smart money trends | Policy-informed trades | High-conviction signals | Catalyst events | Hidden accumulation |
| Pairs Well With | Stock Info | Institutional Holdings | Institutional Holdings | News Feed | Order Flow |
Last reviewed: February 2026