ANADARKO PETROLEUM (SYN_032511107) — Institutional Holders & Hedge Fund Ownership
ANADARKO PETROLEUM (SYN_032511107) institutional ownership: 10 hedge funds and institutional investors, holding 40.4M shares ($2.85B), as of Q2 2019, per SEC Form 13F-HR filings.
Track who bought and sold ANADARKO PETROLEUM (SYN_032511107) this quarter — every hedge fund, family office, and institutional investor that filed an SEC Form 13F-HR for SYN_032511107 is aggregated here. Pactolio aggregates these SEC Form 13F-HR filings into one view: top institutional holders, biggest QoQ buyers and sellers, and consolidated ownership changes for SYN_032511107.
The top SYN_032511107 shareholders by portfolio weight are Sand Grove Capital Management (18.42%), TOMS Capital Investment Management (18.00%), and Pentwater Capital Management (11.62%). In Q2 2019, Sand Grove Capital Management made the largest position increase (+18.42%).
Top 10 Institutional Holders of ANADARKO PETROLEUM (SYN_032511107) — Q2 2019
| # | Fund | Shares | Market Value | Portfolio Weight |
|---|---|---|---|---|
| 1 | Sand Grove Capital Management | 2,449,046 | $172.9M | 18.42% |
| 2 | TOMS Capital Investment Management | 550,000 | $38.8M | 18.00% |
| 3 | Pentwater Capital Management | 8,779,500 | $619.5M | 11.62% |
| 4 | Mason Capital Management | 836,500 | $59.0M | 11.27% |
| 5 | Melqart | 1,566,699 | $110.5M | 8.90% |
| 6 | Paulson & Co. | 4,320,000 | $304.8M | 5.45% |
| 7 | Dodge & Cox | 21,737,617 | $1.53B | 1.24% |
| 8 | Corvex Management | 200,000 | $14.1M | 0.92% |
| 9 | Regents of the University of California | 4,602 | $325K | 0.92% |
| 10 | Harris Associates | 4,070 | $287K | 0.00% |
- 10Hedge funds holding
- 40,448,034Shares held (disclosed)
- $2.85B13F market value
- 7.17%Median portfolio weight
Ownership History
Quarter-by-quarter share count, market value, and portfolio conviction weight (up to 5 of the heaviest weight-by-portfolio funds) of SYN_032511107. Sourced from 13F filings; reflects long equity positions only.
Quarter-over-Quarter ActivityQ2 2019
The biggest weight-increase and weight-decrease changes among funds that hold SYN_032511107. Deltas compare the selected filing to the previous reporting quarter.
Top buyers
- Sand Grove Capital Management+18.42% · +2,449,046 shares
- TOMS Capital Investment Management+18.00% · +550,000 shares
- Pentwater Capital Management+11.62% · +8,779,500 shares
Top sellers
- Harris Associates-1.15% · -13,746,506 shares
- Dodge & Cox-0.45% · -23,663,819 shares
Ownership Statistics
- Funds holding
- 10
- Median weight
- 7.17%
- Largest holder
- Sand Grove Capital Management · 18.42%
- Smallest holder
- Harris Associates · 0.00%
- Shares held
- 40,448,034 (-18,708,580)
All Institutional HoldersSortable · searchable
All institutional investors (Max 50) holding SYN_032511107 in the selected quarter. Click a fund name to drill into its full 13F portfolio.
| 1 | Sand Grove Capital Management | 2,449,046 | $172.9M | 18.42% |
| 2 | TOMS Capital Investment Management | 550,000 | $38.8M | 18.00% |
| 3 | Pentwater Capital Management | 8,779,500 | $619.5M | 11.62% |
| 4 | Mason Capital Management | 836,500 | $59.0M | 11.27% |
| 5 | Melqart | 1,566,699 | $110.5M | 8.90% |
| 6 | Paulson & Co. | 4,320,000 | $304.8M | 5.45% |
| 7 | Dodge & Cox | 21,737,617 | $1.53B | 1.24% |
| 8 | Corvex Management | 200,000 | $14.1M | 0.92% |
| 9 | Regents of the University of California | 4,602 | $325.0K | 0.92% |
| 10 | Harris Associates | 4,070 | $287.0K | 0.00% |
Methodology & FAQ
Methodology: How We Track SYN_032511107 Institutional Holdings
Our data is systematically aggregated directly from quarterly Form 13F-HR disclosures submitted to the U.S. Securities and Exchange Commission (SEC).
- Who Must File (Reporting Threshold): This dataset includes filings from U.S. institutional investment managers, hedge funds, mutual funds, university endowments, and family offices managing at least $100 million in Section 13(f) securities (including equities, options, convertibles, ETFs, and warrants).
- What is Included (Data Scope): We capture long positions in Section 13(f) securities for ANADARKO PETROLEUM CORP (SYN_032511107). By SEC regulation, 13F filings do not require the disclosure of short positions, non-U.S. holdings, or OTC derivatives. Listed options are excluded from portfolio weight calculations to ensure comparability across filers.
- Portfolio Weight Explained (Metric Definition): “Portfolio Weight” shows how much of a fund's total reported 13F portfolio value (excluding listed options) is allocated to SYN_032511107 on the specific reporting date.
- How to Use This Data (Interpretation): Quarter-over-quarter changes in shares and portfolio weight reflect a combination of active trading and market price movements. These are descriptive metrics of fund allocation, not explicit buy or sell signals.
How do you measure hedge fund conviction and institutional concentration in SYN_032511107?
We evaluate fund conviction by looking at portfolio weight rather than just absolute share count. By tracking how the largest holders —such as Sand Grove Capital Management , TOMS Capital Investment Management , and Pentwater Capital Management as of Q2 2019— change their position sizing quarter-over-quarter, we help investors distinguish between deliberate position sizing changes and passive mark-to-market drift.
Does the SYN_032511107 ownership data include short interest or options?
SEC Form 13F mandates the disclosure of long positions in Section 13(f) securities, which includes equities and listed options (put and call contracts), but excludes short interest, swaps, and OTC derivatives by regulatory design. On this platform, listed options are excluded from portfolio weight calculations to ensure comparability across filers.
Are family offices and university endowments included in this SYN_032511107 data?
Yes. In addition to traditional hedge funds and large asset managers, any institutional entity exercising investment discretion over at least $100 million in Section 13(f) securities must file a Form 13F. This explicitly includes single-family offices and university endowments. If a qualifying family office or endowment holds SYN_032511107 stock, their allocation is systematically aggregated alongside traditional fund data.
When is the institutional ownership data updated, and is there a reporting lag?
Institutional investment managers are required to file their Form 13F within 45 days after the end of a calendar quarter (the standard “T+45” window). Our platform re-ingests new filings from the SEC EDGAR database on a nightly cycle, typically within 24–48 hours of publication, providing a point-in-time snapshot of reported consensus positioning for SYN_032511107 as of each filing date.