Which funds own FTNT
Fortinet Inc in the Q2 2026 filings. At least 16 of the 91 current managers on file reported a position, worth $9.1bn between them. It is among the largest positions of fewer than a fifth of the current managers on file. The quarter went one way: 11 managers opened or added against 3 cutting.
- Managers holding
- 16
- at least, of 91 current
- Combined value
- $9.1bn
- as reported
- Opened
- 2
- new this quarter
- Added to
- 9
- already held
- Trimmed or sold out
- 3
- 0 sold out entirely
Only each manager’s largest 200 positions are listed here, so a smaller holder may be missing.
Managers reporting a position
Largest first. Weight is the share of that manager’s whole reported book, which is the number worth quoting: $400m is a rounding error in one book and a defining bet in another.
| Manager | Value | Weight | Shares | Change on the quarter | Action |
|---|---|---|---|---|---|
| Invesco Ltd Long-only · $1264bn book | $3.8bn | 0.3% | 24,621,016 | +$1.7bn-913,516 | Trimmed |
| Arrowstreet Capital LP Quantitative · $225bn book | $1.6bn | 0.7% | 10,127,342 | +$767m+476,318 | Added |
| AQR Capital Management LLC Quantitative · $287bn book | $1.3bn | 0.5% | 8,673,742 | +$704m+901,797 | Added |
| D. E. Shaw & Co. Quantitative · $210bn book | $745m | 0.4% | 4,849,811 | +$511m+1,982,474 | Added |
| Acadian Asset Management LLC Quantitative · $84.2bn book | $679m | 0.8% | 4,421,914 | +$563m+2,999,200 | Added |
| Two Sigma Investments LP Quantitative · $138bn book | $334m | 0.2% | 2,171,408 | +$242m+1,047,009 | Added |
| Marshall Wace LLP Quantitative · $127bn book | $149m | 0.1% | 967,900 | +$70m0 | Held |
| Woodline Partners LP Long/short equity · $32.4bn book | $136m | 0.4% | 886,908 | +$107m+525,629 | Added |
| Voloridge Investment Management LLC Quantitative · $23.5bn book | $90m | 0.4% | 588,443 | +$52m+120,367 | Added |
| Man Group PLC Quantitative · $62.7bn book | $88m | 0.1% | 570,084 | +$47m+77,534 | Added |
| Holocene Advisors LP Long/short equity · $44.4bn book | $87m | 0.2% | 563,000 | +$23m-211,723 | Trimmed |
| Tudor Investment Corp Macro · $71.9bn book | $59m | 0.1% | 381,537 | opened381,537 | New |
| GAMCO Investors Inc Activist · $11.1bn book | $16m | 0.1% | 106,035 | +$7.6m0 | Held |
| Moore Capital Management LP Macro · $6.7bn book | $12m | 0.2% | 79,752 | opened79,752 | New |
| Caxton Associates LLP Macro · $5.3bn book | $7.7m | 0.1% | 49,858 | +$5.0m+17,407 | Added |
| Quantbot Technologies LP Quantitative · $2.5bn book | $5.2m | 0.2% | 34,068 | +$500k-23,868 | Trimmed |
Ownership through time
At least 24 of the 95 managers whose filings are on file listed FTNT in Q2 2026, against 6 in Q2 2013. 8 managers more than in Q1 2026: 2 started positions; 7 listed it again; 1 no longer listed it among the positions read, which can mean a holding below the listed range, a filing that reported no holdings, or a filing not yet made.
Each manager’s largest 500 positions a quarter are read, so a small holding in a very large book can be missing, and a manager is counted as leaving only where its own filing shows it.
- Q2 2013: 6
- Q3 2013: 6
- Q4 2013: 7
- Q1 2014: 2
- Q2 2014: 6
- Q3 2014: 6
- Q4 2014: 3
- Q1 2015: 6
- Q2 2015: 6
- Q3 2015: 5
- Q4 2015: 6
- Q1 2016: 9
- Q2 2016: 7
- Q3 2016: 12
- Q4 2016: 9
- Q1 2017: 12
- Q2 2017: 14
- Q3 2017: 11
- Q4 2017: 13
- Q1 2018: 11
- Q2 2018: 13
- Q3 2018: 13
- Q4 2018: 17
- Q1 2019: 16
- Q2 2019: 13
- Q3 2019: 16
- Q4 2019: 17
- Q1 2020: 17
- Q2 2020: 25
- Q3 2020: 17
- Q4 2020: 16
- Q1 2021: 10
- Q2 2021: 14
- Q3 2021: 20
- Q4 2021: 17
- Q1 2022: 23
- Q2 2022: 27
- Q3 2022: 27
- Q4 2022: 24
- Q1 2023: 25
- Q2 2023: 25
- Q3 2023: 20
- Q4 2023: 21
- Q1 2024: 18
- Q2 2024: 21
- Q3 2024: 27
- Q4 2024: 24
- Q1 2025: 24
- Q2 2025: 22
- Q3 2025: 18
- Q4 2025: 21
- Q1 2026: 16
- Q2 2026: 24
- Q2 2013: $293m
- Q3 2013: $267m
- Q4 2013: $241m
- Q1 2014: $196m
- Q2 2014: $250m
- Q3 2014: $107m
- Q4 2014: $75m
- Q1 2015: $265m
- Q2 2015: $311m
- Q3 2015: $297m
- Q4 2015: $348m
- Q1 2016: $248m
- Q2 2016: $248m
- Q3 2016: $451m
- Q4 2016: $262m
- Q1 2017: $565m
- Q2 2017: $588m
- Q3 2017: $464m
- Q4 2017: $514m
- Q1 2018: $500m
- Q2 2018: $696m
- Q3 2018: $1.1bn
- Q4 2018: $1.1bn
- Q1 2019: $1.6bn
- Q2 2019: $1.2bn
- Q3 2019: $1.1bn
- Q4 2019: $1.7bn
- Q1 2020: $1.5bn
- Q2 2020: $2.5bn
- Q3 2020: $2.0bn
- Q4 2020: $1.8bn
- Q1 2021: $3.9bn
- Q2 2021: $5.2bn
- Q3 2021: $6.6bn
- Q4 2021: $7.7bn
- Q1 2022: $7.8bn
- Q2 2022: $6.3bn
- Q3 2022: $4.4bn
- Q4 2022: $4.7bn
- Q1 2023: $6.5bn
- Q2 2023: $7.5bn
- Q3 2023: $4.7bn
- Q4 2023: $4.1bn
- Q1 2024: $5.3bn
- Q2 2024: $4.4bn
- Q3 2024: $4.9bn
- Q4 2024: $6.3bn
- Q1 2025: $5.9bn
- Q2 2025: $5.7bn
- Q3 2025: $2.9bn
- Q4 2025: $4.2bn
- Q1 2026: $4.4bn
- Q2 2026: $11.0bn
Between the quarter ends of Q1 2026 and Q2 2026. Each change in shares is valued at the Q2 2026 price, so the price’s own move is left out; a 13F shows the two quarter ends, not when in between anything was bought or sold.
Started in Q2 2026
Largest increases, by shares
- Acadian Asset Management LLC1,422,714 to 4,421,914 shares+$461m
- D. E. Shaw & Co.2,867,337 to 4,849,811 shares+$305m
- Capital World Investors1,605,884 to 2,739,976 shares+$174m
- Two Sigma Investments LP1,124,399 to 2,171,408 shares+$161m
- AQR Capital Management LLC7,771,945 to 8,673,742 shares+$138m
Largest decreases, by shares
- Invesco Ltd25,534,532 to 24,621,016 shares-$140m
- Holocene Advisors LP774,723 to 563,000 shares-$33m
- Quantbot Technologies LP57,936 to 34,068 shares-$3.7m
Left it
No manager on file is shown leaving it.
| Manager | Value over time | First listed | Largest | Q2 2026 |
|---|---|---|---|---|
| Invesco Ltd | Q4 2018 | $3.8bn | $3.8bn | |
| Arrowstreet Capital LP | Q1 2017 | $1.6bn | $1.6bn | |
| AQR Capital Management LLC | Q1 2015 | $1.3bn | $1.3bn | |
| D. E. Shaw & Co. | Q2 2013 | $745m | $745m | |
| Acadian Asset Management LLC | Q1 2018 | $679m | $679m | |
| Jane Street Group LLC | Q2 2014 | $627m | $627m | |
| Capital World Investors | Q4 2025 | $421m | $421m | |
| Citadel Advisors LLC | Q4 2015 | $366m | $366m | |
| Two Sigma Investments LP | Q2 2013 | $334m | $334m | |
| T. Rowe Price Associates Inc | Q1 2015 | $3.8bn | $248m | |
| Millennium Management LLC | Q3 2016 | $282m | $166m | |
| Marshall Wace LLP | Q1 2014 | $376m | $149m | |
| Woodline Partners LP | Q1 2022 | $136m | $136m | |
| Voloridge Investment Management LLC | Q1 2017 | $90m | $90m | |
| Man Group PLC | Q1 2018 | $156m | $88m | |
| AllianceBernstein LP | Q2 2014 | $2.2bn | last listed Q2 2025 | |
| Fidelity (FMR LLC) | Q2 2020 | $1.2bn | last listed Q2 2025 | |
| Renaissance Technologies LLC | Q4 2015 | $820m | last listed Q4 2025 | |
| Viking Global Investors LP | Q4 2022 | $789m | last listed Q3 2023 | |
| Two Sigma Advisers LP | Q4 2013 | $489m | last listed Q4 2025 | |
| Whale Rock Capital Management LLC | Q4 2019 | $347m | last listed Q3 2023 | |
| Bridgewater Associates LP | Q4 2014 | $336m | last listed Q4 2025 | |
| Maverick Capital Ltd | Q2 2013 | $209m | last listed Q1 2025 | |
| Janus Henderson Group Ltd | Q3 2018 | $194m | last listed Q3 2019 | |
| Starboard Value LP | Q1 2017 | $167m | last listed Q4 2017 |
Reported as options rather than shares
A put or a call on a name is not a position in it, and the filing states the notional rather than what the option cost. These lines are listed apart for that reason and are not counted in anything above.
- Brevan Howard Capital Management LP · calls$11m notional
What FTNT is worth
Knowing who owns it is half the question. The other half is what it is worth against the companies it trades beside, which is the one an interviewer will follow up with.
Build the comp set around FTNT →How much of the picture this is
A Form 13F reports US-listed long equity and nothing else: no shorts, no bonds, no cash and no non-US listings. It arrives forty-five days after the quarter ends, so a manager who sold in July still shows the position in a filing published in August. This page reads the managers on file here rather than every filer in the market, and each manager’s largest positions rather than the whole table, so a small position in a very large book may not appear. Say “their last filing showed” rather than “they own”, and the distinction will do you credit.
What to do with a name the funds are buying
Knowing who owns something is the start of a pitch, not the pitch. The next questions are what it is worth and why they were buying.
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The holdings, every quarter, and the week between
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