| 4 | D. E. Shaw & Co., Inc. | 6.0M | $86.5M | +27.2% | 4.921% | 0.04% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 5.1M | $73.6M | +17.8% | 4.187% | 0.00% |
| 6 | Encompass Capital Advisors LLC | 4.6M | $65.6M | — | 3.731% | 2.33% |
| 7 | AMERICAN CENTURY COMPANIES INC | 4.3M | $61.9M | +12.2% | 3.520% | 0.03% |
| 8 | Valiant Capital Management, L.P. | 4.2M | $60.8M | +4.9% | 3.460% | 2.46% |
| 9 | VR Advisory Services Ltd | 4.1M | $58.8M | +66.2% | 3.342% | 5.21% |
| 10 | STATE STREET CORP | 3.5M | $50.0M | +14.2% | 2.845% | 0.00% |
| 11 | CITADEL ADVISORS LLC | 3.2M | $46.0M | +109.6% | 2.618% | 0.00% |
| 12 | MORGAN STANLEY | 3.1M | $44.4M | -2.5% | 2.526% | 0.00% |
| 13 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.1M | $44.2M | +13.8% | 2.513% | 0.00% |
| 14 | MILLENNIUM MANAGEMENT LLC | 3.1M | $44.2M | +98.4% | 2.512% | 0.02% |
| 15 | Philosophy Capital Management LLC | 3.0M | $42.5M | +29.8% | 2.418% | 2.01% |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 2.8M | $40.0M | +19.2% | 2.277% | 0.00% |
| 17 | VAN ECK ASSOCIATES CORP | 2.4M | $35.0M | -11.4% | 1.993% | 0.02% |
| 18 | Nuveen, LLC | 2.4M | $33.8M | +57.6% | 1.925% | 0.01% |
| 19 | WELLINGTON MANAGEMENT GROUP LLP | 2.3M | $32.8M | +882.3% | 1.868% | 0.01% |
| 20 | TWO SIGMA INVESTMENTS, LP | 2.1M | $30.0M | +121.5% | 1.707% | 0.02% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.1M | $29.9M | -16.1% | 1.702% | 0.00% |
| 22 | Situational Awareness LP | 2.0M | $28.1M | +115.4% | 1.599% | 0.14% |
| 23 | Fund 1 Investments, LLC | 1.8M | $25.7M | +2653.6% | 1.463% | 4.27% |
| 24 | BWCP, LP | 1.6M | $22.9M | +99.2% | 1.300% | 3.27% |
| 25 | Alta Fundamental Advisers LLC | 1.6M | $22.3M | -12.4% | 1.267% | 6.68% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in PUMP — a direct measure of their conviction.
| 71.24% |
| +1.54 pp |
| $621M |
| 18% |
| Q4 2024 | 225 | +4.7% | 69.70% | 0.53 pp | $758M | +18% |
| Q3 2024 | 215 | — | 70.23% | — | $643M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
56 institutions opened new positions in PUMP during Q2 2026, while 41 fully exited. 105 added to existing positions and 102 trimmed.
PUMP institutional ownership rose by 24.94 percentage points quarter-over-quarter, with a net change of +18 holders.
The top 10 institutions account for 39.4% of all reported 13F value in PUMP, and the top 25 account for 65.3%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.