Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in FFIV held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 6.3M | $2.61B | +0.7% | 11.128% | 0.04% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 3.7M | $1.53B | +0.5% | 6.535% | 0.03% |
| 3 | STATE STREET CORP | 3.1M | $1.29B | +4.0% | 5.492% | 0.02% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8M | $1.17B | -5.6% | 4.977% | 0.05% |
| 5 | Jericho Capital Asset Management L.P. | 2.1M | $881.3M | -19.8% | 3.755% | 7.28% |
| 6 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 2.1M | $857.5M | -55.0% | 3.654% | 2.50% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 1.8M | $740.8M | +2.1% | 3.153% | 0.04% |
| 8 | FIRST TRUST ADVISORS LP | 1.5M | $640.7M | +4.3% | 2.730% | 0.38% |
| 9 | Invesco Ltd. | 1.4M | $576.1M | -4.1% | 2.455% | 0.05% |
| 10 | JANE STREET GROUP, LLC | 1.0M | $429.8M | +1383.6% | 1.831% | 0.04% |
| 11 | AQR CAPITAL MANAGEMENT LLC | 926K | $385.0M | +35.6% | 1.641% | 0.13% |
| 12 | LYRICAL ASSET MANAGEMENT LP | 922K | $383.5M | -2.7% | 1.634% | 4.86% |
| 13 | MORGAN STANLEY | 835K | $347.5M | -2.4% | 1.481% | 0.02% |
| 14 | NORGES BANK | 835K | $347.1M | — | 1.479% | 0.03% |
| 15 | VICTORY CAPITAL MANAGEMENT INC | 801K | $333.4M | -21.5% | 1.421% | 0.19% |
| 16 | NORTHERN TRUST CORP | 739K | $307.4M | +0.4% | 1.310% | 0.04% |
| 17 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | 727K | $302.3M | +24.8% | 1.288% | 0.05% |
| 18 | AMERIPRISE FINANCIAL INC | 695K | $289.3M | -11.0% | 1.233% | 0.06% |
| 19 | JPMORGAN CHASE & CO | 698K | $286.7M | +22.2% | 1.238% | 0.02% |
| 20 | DIMENSIONAL FUND ADVISORS LP | 637K | $265.1M | +5.7% | 1.130% | 0.05% |
| 21 | Robeco Institutional Asset Management B.V. | 591K | $245.9M | +78.2% | 1.048% | 0.30% |
| 22 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 586K | $243.9M | -9.8% | 1.039% | 0.73% |
| 23 | Amundi | 556K | $231.2M | +96.0% | 0.985% | 0.06% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 514K | $213.8M | +1.0% | 0.911% | 0.03% |
| 25 | WELLINGTON MANAGEMENT GROUP LLP | 507K | $210.8M | -38.0% | 0.898% | 0.04% |
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 FFIV — a direct measure of their conviction.
Filings activity in FFIV during Q2 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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 831 | +15% | 98.17% | 2.92 pp | $22.17B | +39% |
| Q1 2026 | 722 | +7.6% | 101.09% | 6.64 pp | $15.99B | +8.1% |
| Q4 2025 | 671 | 10% | 107.73% | +11.19 pp | $14.80B | 14% |
| Q3 2025 | 747 | +4.5% | 96.54% | +0.39 pp | $17.12B | +10% |
| Q2 2025 | 715 | +6.4% | 96.15% | +0.13 pp | $15.56B | +13% |
| Q1 2025 | 672 | +7.3% | 96.02% | 0.38 pp | $13.76B | +4.0% |
| Q4 2024 | 626 | +10% | 96.40% | +5.04 pp | $13.23B | +17% |
| Q3 2024 | 569 | — | 91.36% | — | $11.30B | — |
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 FFIV stock.
Based on Q2 2026 13F filings, institutional ownership of F5, Inc. stands at 98.2%, held across 831 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of FFIV, with approximately 6,278,577 shares worth $2.61B as of Q2 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of FFIV, including JANE STREET GROUP, LLC.
Our composite Smart Money Score for FFIV is 54 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
159 institutions opened new positions in FFIV during Q2 2026, while 59 fully exited. 573 added to existing positions and 73 trimmed.
FFIV institutional ownership fell by 2.92 percentage points quarter-over-quarter, with a net change of +109 holders.
The top 10 institutions account for 48.4% of all reported 13F value in FFIV, and the top 25 account for 68.2%.
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.