Fortinet: which funds bought and sold
Institutions that bought and sold Fortinet shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 818 institutions that filed 13F reports for both quarters added to or opened positions in Fortinet, and 648 cut or closed them. Together they sold a net 3.0M shares, −0.6% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 11.1M shares (+20.3%); index fund managers were net buyers of 1.7M shares (+0.9%). 329 opened a new position and 95 sold out entirely.
Bought, Q2 2026 818 institutions, 329 of them new holders Sold, Q2 2026 648 institutions, 95 of them sold out
Net change, all compared −3.0M shares (−0.6%)
Net change, active managers +11.1M shares (+20.3%), 46 bought, 30 sold
Buyers versus sellers
818 bought 159 648 sold
Active managers and hedge funds 46 bought · 30 sold · +11.1M
Index fund managers 6 bought · 6 sold · +1.7M
Other institutions 766 bought · 612 sold · −15.7M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Jane Street Group, LLC | +3.9M +2769.3% | 4.1M | $627M |
| Acadian Asset Management LLC Active manager | +3.0M +210.8% | 4.4M | $679M |
| D. E. Shaw & Co., Inc. Hedge fund | +2.0M +69.1% | 4.8M | $745M |
| Ameriprise Financial Inc | +1.4M +73.0% | 3.4M | $518M |
| Worldquant Millennium Advisors LLC Hedge fund | +1.4M +39790.4% | 1.4M | $211M |
| Citadel Advisors LLC Hedge fund | +1.4M +131.6% | 2.4M | $366M |
| Capital World Investors Active manager | +1.1M +70.6% | 2.7M | $421M |
| Millennium Management LLC Hedge fund | +1.1M +3795.5% | 1.1M | $166M |
| Two Sigma Investments, LP Hedge fund | +1.0M +93.1% | 2.2M | $334M |
| Vanguard Capital Management LLC Index funds | +909K +2.3% | 40.7M | $6.2B |
| AQR Capital Management LLC Hedge fund | +902K +11.6% | 8.7M | $1.3B |
| Amundi | +890K +23.1% | 4.7M | $727M |
| Qube Research & Technologies Ltd Hedge fund | +778K +1571.6% | 828K | $127M |
| HRT Financial LP | +748K +411.7% | 930K | $143M |
| Connor, Clark & Lunn Investment Management Ltd. | +717K New position | 717K | $110M |
| Panagora Asset Management Inc Active manager | +705K +450.5% | 862K | $132M |
| State Street Corp Index funds | +701K +2.4% | 29.6M | $4.6B |
| Susquehanna International Group, LLP | +590K +203.6% | 880K | $135M |
| Public Sector Pension Investment Board | +578K +510.7% | 692K | $106M |
| BNP Paribas Financial Markets | +573K +45.5% | 1.8M | $281M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Acadian Asset Management LLC Active manager | +3.0M +210.8% | 4.4M | $679M |
| D. E. Shaw & Co., Inc. Hedge fund | +2.0M +69.1% | 4.8M | $745M |
| Worldquant Millennium Advisors LLC Hedge fund | +1.4M +39790.4% | 1.4M | $211M |
| Citadel Advisors LLC Hedge fund | +1.4M +131.6% | 2.4M | $366M |
| Capital World Investors Active manager | +1.1M +70.6% | 2.7M | $421M |
| Millennium Management LLC Hedge fund | +1.1M +3795.5% | 1.1M | $166M |
| Two Sigma Investments, LP Hedge fund | +1.0M +93.1% | 2.2M | $334M |
| AQR Capital Management LLC Hedge fund | +902K +11.6% | 8.7M | $1.3B |
| Qube Research & Technologies Ltd Hedge fund | +778K +1571.6% | 828K | $127M |
| Panagora Asset Management Inc Active manager | +705K +450.5% | 862K | $132M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Van Eck Associates Corp | −5.5M −73.4% | 2.0M | $306M |
| Bank Of New York Mellon Corp | −4.0M −30.0% | 9.3M | $1.4B |
| Deutsche Bank Ag\ | −2.7M −41.3% | 3.8M | $581M |
| Fundsmith LLP Active manager | −2.5M −41.0% | 3.6M | $558M |
| Bessemer Group Inc | −2.5M −67.6% | 1.2M | $181M |
| Sarasin & Partners LLP | −1.5M −96.6% | 51K | $7.8M |
| UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC | −1.2M −16.4% | 6.3M | $970M |
| Pictet Asset Management Holding SA | −1.1M −34.5% | 2.2M | $331M |
| Invesco Ltd. | −914K −3.6% | 24.6M | $3.8B |
| Goldman Sachs Group Inc | −876K −9.8% | 8.1M | $1.2B |
| First Trust Advisors LP | −690K −6.0% | 10.8M | $1.7B |
| Junto Capital Management LP Hedge fund | −662K Sold out | 0 | — |
| BNP Paribas Asset Management Holding S.A. | −660K −41.7% | 920K | $141M |
| Robeco Institutional Asset Management B.V. | −583K −25.9% | 1.7M | $256M |
| Fundsmith Investment Services Ltd. | −534K −32.1% | 1.1M | $173M |
| Jacobs Levy Equity Management, Inc Active manager | −488K −16.0% | 2.6M | $394M |
| Healthcare Of Ontario Pension Plan Trust Fund | −460K −69.0% | 207K | $31.8M |
| Royal Bank Of Canada | −443K −22.4% | 1.5M | $235M |
| Empower Advisory Group, LLC | −385K −37.8% | 635K | $97.6M |
| Mirae Asset Global Etfs Holdings Ltd. | −374K −25.4% | 1.1M | $169M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Fundsmith LLP Active manager | −2.5M −41.0% | 3.6M | $558M |
| Junto Capital Management LP Hedge fund | −662K Sold out | 0 | — |
| Jacobs Levy Equity Management, Inc Active manager | −488K −16.0% | 2.6M | $394M |
| FMR LLC Active manager | −303K −8.9% | 3.1M | $474M |
| Alyeska Investment Group, L.P. Hedge fund | −299K −24.4% | 927K | $142M |
| Jupiter Asset Management Ltd Active manager | −293K −31.3% | 645K | $99.5M |
| Engineers Gate Manager LP Hedge fund | −246K −80.1% | 61K | $9.4M |
| Voleon Capital Management LP Hedge fund | −226K −52.8% | 202K | $31M |
| Holocene Advisors, LP Hedge fund | −212K −27.3% | 563K | $86.5M |
| Quadrature Capital Ltd Hedge fund | −170K Sold out | 0 | — |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Connor, Clark & Lunn Investment Management Ltd. | 717K | $110M |
| 1832 Asset Management L.P. | 452K | $69.4M |
| Gladstone Capital Management LLP | 398K | $61.1M |
| Tudor Investment Corp Et AlHedge fund | 382K | $58.6M |
| Jump Financial, LLC | 335K | $51.5M |
| Railway Pension Investments Ltd | 310K | $47.6M |
| Nearwater Capital Markets, Ltd | 219K | $33.6M |
| Lord, Abbett & Co. LLC | 170K | $26.1M |
| Occudo Quantitative Strategies LP | 122K | $18.8M |
| Diversify Advisory Services, LLC | 108K | $16.5M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Junto Capital Management LPHedge fund | 662K | $54.1M |
| Lansforsakringar Fondforvaltning AB (Publ) | 214K | $17.5M |
| Quadrature Capital LtdHedge fund | 170K | $13.9M |
| Varma Mutual Pension Insurance Co | 141K | $11.5M |
| Inspire Investing, LLC | 107K | $8.7M |
| Meridiem Capital Partners LP | 100K | $8.2M |
| Banque Cantonale Vaudoise | 66K | $5.4M |
| Wilson Asset Management (International) Pty Ltd | 66K | $5.4M |
| Advisors Asset Management, Inc. | 66K | $5.4M |
| Walleye Trading LLC | 48K | $3.9M |
Who holds the shares
- Institutions reporting
- 1,564
- Ten largest holders
- 48.1% of 13F-reported shares
- Index fund managers
- 38.2% of 13F-reported shares
- Active managers and hedge funds
- 13.0% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 46 | 30 | 10 | 6 | +11.1M | +20.3% |
| Index fund managers | 6 | 6 | 0 | 0 | +1.7M | +0.9% |
| Other institutions | 766 | 612 | 319 | 89 | −15.7M | −6.3% |