From us-stock-analysis
Analyzes SEC 13F filings to track institutional ownership trends, top holders, position changes, and smart money signals in stocks.
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Comprehensive analysis of institutional investor holdings to identify "smart money" trends, ownership concentration, and investment signals from SEC 13F filings.
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Comprehensive analysis of institutional investor holdings to identify "smart money" trends, ownership concentration, and investment signals from SEC 13F filings.
Provide current snapshot of institutional holdings:
Aggregate Statistics
Ownership Trend (4 Quarters)
Quarter Institutional % # of Holders Change from Prior
Q4 2024 73.2% 850 +1.5%
Q3 2024 71.7% 832 +0.8%
Q2 2024 70.9% 815 -0.3%
Q1 2024 71.2% 809 +2.1%
Trend Interpretation
Identify and analyze largest institutional positions:
Top 10 Holders Table
| Rank | Institution | Type | Shares Held | Value ($M) | % of Portfolio | % of Company | Change (QoQ) |
|---|---|---|---|---|---|---|---|
| 1 | Vanguard Group | Index | 45.2M | $6,780 | 0.8% | 8.5% | +2.1% |
| 2 | BlackRock | Index | 38.1M | $5,715 | 0.6% | 7.2% | +1.5% |
| 3 | State Street | Index | 22.3M | $3,345 | 1.2% | 4.2% | -0.3% |
| 4 | Fidelity | Active | 18.7M | $2,805 | 2.1% | 3.5% | +15.2% |
| 5 | ... | ... | ... | ... | ... | ... | ... |
Holder Categories
Analyze recent changes in institutional holdings:
New Positions (Initiated)
| Institution | Shares | Value ($M) | % of Their Portfolio | Significance |
|---|---|---|---|---|
| ARK Invest | 2.5M | $375 | 3.2% | High (active, thematic) |
| ... | ... | ... | ... | ... |
Increased Positions (>25% increase)
| Institution | Previous Shares | New Shares | Change | New Value | Notes |
|---|---|---|---|---|---|
| ValueAct Capital | 5.0M | 8.2M | +64% | $1,230M | Activist, 4th increase |
| ... | ... | ... | ... | ... | ... |
Decreased Positions (>25% decrease)
| Institution | Previous Shares | New Shares | Change | Current Value | Reason |
|---|---|---|---|---|---|
| Tiger Global | 12.0M | 4.5M | -62% | $675M | Reducing tech exposure |
| ... | ... | ... | ... | ... | ... |
Eliminated Positions (Sold Completely)
| Institution | Previous Shares | Value Sold ($M) | Exit Price | Context |
|---|---|---|---|---|
| Scion Asset Mgmt | 3.2M | $480 | $150 | Burry exited |
| ... | ... | ... | ... | ... |
Track notable investors and their activities:
Super Investors / Gurus (Defined as legendary investors or top-performing fund managers)
Bullish Signals - Notable Buyers
| Investor | Institution | Action | Shares | Value ($M) | % of Their Portfolio | Signal Strength |
|---|---|---|---|---|---|---|
| Warren Buffett | Berkshire Hathaway | New Position | 50.0M | $7,500 | 4.5% | VERY HIGH |
| Bill Ackman | Pershing Square | Increased 80% | 8.5M | $1,275 | 8.2% | HIGH |
| ... | ... | ... | ... | ... | ... | ... |
Bearish Signals - Notable Sellers
| Investor | Institution | Action | Shares Sold | Value ($M) | Reason (if stated) | Signal Strength |
|---|---|---|---|---|---|---|
| Michael Burry | Scion Asset Mgmt | Eliminated | 3.2M | $480 | Not disclosed | HIGH |
| ... | ... | ... | ... | ... | ... | ... |
Notable Investor Categories
Why Smart Money Matters
Assess how concentrated institutional ownership is:
Concentration Metrics
Interpretation
High concentration (Top 10 > 50%):
Medium concentration (Top 10 = 30-50%):
Low concentration (Top 10 < 30%):
Turnover Analysis
Stability Assessment
Identify and analyze activist investors or strategic stakeholders:
Activist Investors (>5% ownership or known activist activity)
For each activist position:
Types of Activist Campaigns
Impact Assessment
Analyze how important the position is to each holder:
High-Conviction Holders (Position is >5% of their portfolio)
| Institution | Shares | Value ($M) | % of Their Portfolio | Rank in Portfolio | Recent Action |
|---|---|---|---|---|---|
| Akre Capital | 4.2M | $630 | 8.5% | #2 holding | Increased |
| ... | ... | ... | ... | ... | ... |
Interpretation
Position Sizing Trends
Analyze relationship between ownership changes and stock performance:
Performance During Institutional Activity
Period: Q4 2024
Institutional Change: +2.5% ownership (net buying)
Stock Price Change: +18.5%
S&P 500 Change: +8.2%
Outperformance: +10.3%
Historical Pattern Analysis
Predictive Value
High predictive value scenarios:
Low predictive value scenarios:
Reference the following sources for institutional ownership data:
Primary Source - SEC 13F Filings
13F Filing Calendar
Important Limitations
Schedule 13D/G Filings (>5% ownership)
13D: Activist investors with intent to influence
13G: Passive investors, no control intent
Aggregator Services
Identify concerning patterns in institutional ownership:
High-Severity Red Flags
Medium-Severity Red Flags
Positive Signals
User: /institutional-ownership AAPL
Claude retrieves latest 13F data and analyzes recent changes
User: /institutional-ownership TSLA --track "Berkshire,ARK,Scion"
Claude focuses on specific institutional holders' activity
User: /institutional-ownership --data
[Paste 13F data table from WhaleWisdom or SEC]
Claude analyzes provided institutional holdings data
Provide comprehensive institutional ownership analysis report with:
Detailed table with position sizes, changes, and portfolio weights
Notable investors' activity with signal strength assessment
Any activist investors or strategic stakeholders (>5% ownership)
Institutions with >5% portfolio weight in this stock
Stock performance during periods of institutional buying/selling
User: /institutional-ownership NVDA
Claude: Analyzes latest 13F filings (Q4 2024), identifies:
- Institutional ownership increased to 65% (from 62%)
- ARK Invest added $500M position (new holding)
- Berkshire added to existing position (+15%)
- 45 new institutional buyers
- Signal: Bullish, Confidence: High
User: /institutional-ownership META --smart-money
Claude: Focuses on notable investors:
- Soros Fund Management initiated $2B position
- Baupost Group increased 40%
- No major exits by top holders
- Signal: Bullish based on smart money activity
User: /institutional-ownership AAPL MSFT GOOGL --compare
Claude: Compares institutional trends across three stocks:
- AAPL: Stable ownership, slight decline
- MSFT: Growing ownership, smart money accumulating
- GOOGL: Decreasing ownership, some notable exits
- Relative signal: MSFT > AAPL > GOOGL
All analysis concludes with this standardized block:
╔══════════════════════════════════════════════╗
║ INVESTMENT SIGNAL ║
╠══════════════════════════════════════════════╣
║ Signal: BULLISH / NEUTRAL / BEARISH ║
║ Confidence: HIGH / MEDIUM / LOW ║
║ Horizon: SHORT / MEDIUM / LONG-TERM ║
║ Score: X.X / 10 ║
╠══════════════════════════════════════════════╣
║ Action: BUY / HOLD / SELL ║
║ Conviction: STRONG / MODERATE / WEAK ║
╚══════════════════════════════════════════════╝
Score Guide: 8.0–10.0 Strongly Bullish | 6.0–7.9 Moderately Bullish | 4.0–5.9 Neutral | 2.0–3.9 Moderately Bearish | 0.0–1.9 Strongly Bearish Confidence: HIGH (strong data, clear signals) | MEDIUM (mixed signals) | LOW (limited data, conflicting signals) Horizon: SHORT-TERM (1 week–3 months) | MEDIUM-TERM (3 months–1 year) | LONG-TERM (1+ years)