Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in PNW held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Capital Research Global Investors | 16.4M | $1.66B | +22.1% | 13.563% | 0.26% |
| 2 | BlackRock, Inc. | 11.8M | $1.19B | -0.3% | 9.711% | 0.02% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 7.8M | $786.0M | — | 6.438% | 0.02% |
| 4 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 7.0M | $705.3M | +4.7% | 5.777% | 2.31% |
| 5 | STATE STREET CORP | 6.9M | $696.3M | -0.4% | 5.703% | 0.02% |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | 6.0M | $603.3M | — | 4.942% | 0.03% |
| 7 | ATLAS Infrastructure Partners (UK) Ltd. | 5.1M | $511.2M | +13.7% | 4.187% | 18.00% |
| 8 | Invesco Ltd. | 4.3M | $428.2M | +0.0% | 3.507% | 0.07% |
| 9 | Soroban Capital Partners LP | 3.9M | $388.4M | +34.0% | 3.181% | 0.75% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 3.1M | $315.2M | +1.2% | 2.586% | 0.02% |
| 11 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 2.8M | $286.6M | -1.9% | 2.347% | 0.10% |
| 12 | TWO SIGMA INVESTMENTS, LP | 2.2M | $220.5M | +67.1% | 1.806% | 0.18% |
| 13 | MORGAN STANLEY | 2.1M | $207.6M | +9.2% | 1.701% | 0.01% |
| 14 | GOLDMAN SACHS GROUP INC | 1.6M | $158.0M | +134.3% | 1.294% | 0.02% |
| 15 | Pictet Asset Management Holding SA | 1.4M | $142.8M | -6.5% | 1.169% | 0.15% |
| 16 | DIMENSIONAL FUND ADVISORS LP | 1.3M | $135.6M | +2.1% | 1.111% | 0.03% |
| 17 | Squarepoint Ops LLC | 1.2M | $123.7M | +11.0% | 1.013% | 0.16% |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.1M | $115.6M | +2.6% | 0.946% | 0.02% |
| 19 | Bank of New York Mellon Corp | 1.1M | $109.9M | +12.6% | 0.900% | 0.02% |
| 20 | REAVES W H & CO INC | 1.1M | $108.6M | -37.3% | 0.890% | 1.80% |
| 21 | FRANKLIN RESOURCES INC | 1.1M | $108.4M | +0.0% | 0.888% | 0.03% |
| 22 | Assenagon Asset Management S.A. | 996K | $100.4M | +8.2% | 0.822% | 0.16% |
| 23 | Nuveen, LLC | 984K | $99.1M | +19.4% | 0.812% | 0.03% |
| 24 | FIRST TRUST ADVISORS LP | 983K | $99.0M | -28.3% | 0.811% | 0.07% |
| 25 | UBS Group AG | 966K | $97.3M | +127.6% | 0.797% | 0.01% |
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 PNW — a direct measure of their conviction.
Filings activity in PNW during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 687 | +5.7% | 98.29% | +14.64 pp | $12.32B | +18% |
| Q4 2025 | 650 | +7.1% | 83.65% | +1.75 pp | $10.49B | +2.1% |
| Q3 2025 | 607 | 1.9% | 81.90% | +0.33 pp | $10.27B | +0.4% |
| Q2 2025 | 619 | +2.8% | 81.57% | 1.21 pp | $10.22B | 1.5% |
| Q1 2025 | 602 | +0.5% | 82.78% | +8.95 pp | $10.38B | +12% |
| Q4 2024 | 599 | +6.8% | 73.83% | 0.53 pp | $9.25B | 0.7% |
| Q3 2024 | 561 | +4.9% | 74.36% | +7.84 pp | $9.32B | +12% |
| Q2 2024 | 535 | — | 66.52% | — | $8.34B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying PNW stock.
Based on Q1 2026 13F filings, institutional ownership of Pinnacle West Capital Corporation stands at 98.3%, held across 687 reporting institutions.
Capital Research Global Investors is the largest reported institutional holder of PNW, with approximately 16,436,894 shares worth $1.66B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of PNW, including TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for PNW is 66 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
102 institutions opened new positions in PNW during Q1 2026, while 65 fully exited. 498 added to existing positions and 82 trimmed.
PNW institutional ownership rose by 14.64 percentage points quarter-over-quarter, with a net change of +37 holders.
The top 10 institutions account for 59.0% of all reported 13F value in PNW, and the top 25 account for 76.2%.
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.
Pinnacle West Capital Corporation (PNW) Institutional Ownership