- Quarter end
- 31 Mar 2024
- the date the book describes
- Filed
- 5 Nov 2026
- latest of these filings; the earliest 9 May 2024
- Managers listing it
- 14
- at least, of 95 tracked, among listed positions
- Comparable managers
- 93
- filed both Q4 2023 and Q1 2024; 12 listed it in both
- Shares listed
- 131,382,300
- combined, among listed positions
- Reported value
- $3.8bn
- combined, at the quarter end
Among the 93 comparable managers: 6 buyers (opened or added shares) and 9 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing FLEX in Q1 2024
14 of 14 holders
Largest increases and reductions, by shares
Increases
- Wellington Management Group LLPexisting position · 36,781,060 shares now+12,679,836
- Artisan Partners LPnew position · 2,099,948 shares now+2,099,948
- Voloridge Investment Management LLCexisting position · 1,982,910 shares now+1,132,571
- Marshall Wace LLPnew position · 805,383 shares now+805,383
- MFS Investment Managementexisting position · 7,136,525 shares now+293,726
Reductions
- Fidelity (FMR LLC)existing position · 42,116,176 shares now-1,223,607
- Schonfeld Strategic Advisors LLCexisting position · 1,180,474 shares now-878,879
- AllianceBernstein LPexisting position · 10,763,582 shares now-678,633
- Woodline Partners LPexisting position · 99,479 shares now-567,697
- Janus Henderson Group Ltdexisting position · 27,641,004 shares now-455,962
New positions and exits
New (2)
Exited (2)
- Sachem Head Capital Management LPwas $256m
- Two Sigma Investments LPwas $48m
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 6 | $875m | n.a. | n.a. |
| Q3 2013 | 9 | $1.0bn | n.a. | n.a. |
| Q4 2013 | 8 | $914m | n.a. | n.a. |
| Q1 2014 | 10 | $1.1bn | n.a. | n.a. |
| Q2 2014 | 9 | $1.4bn | n.a. | n.a. |
| Q3 2014 | 6 | $1.3bn | n.a. | n.a. |
| Q4 2014 | 11 | $1.7bn | n.a. | n.a. |
| Q1 2015 | 12 | $2.1bn | n.a. | n.a. |
| Q2 2015 | 10 | $1.7bn | n.a. | n.a. |
| Q3 2015 | 9 | $1.5bn | n.a. | n.a. |
| Q4 2015 | 12 | $1.1bn | n.a. | n.a. |
| Q1 2016 | 9 | $924m | n.a. | n.a. |
| Q2 2016 | 6 | $715m | n.a. | n.a. |
| Q3 2016 | 10 | $769m | n.a. | n.a. |
| Q4 2016 | 13 | $1.8bn | n.a. | n.a. |
| Q1 2017 | 17 | $2.2bn | n.a. | n.a. |
| Q2 2017 | 15 | $2.6bn | n.a. | n.a. |
| Q3 2017 | 11 | $2.6bn | n.a. | n.a. |
| Q4 2017 | 13 | $3.0bn | n.a. | n.a. |
| Q1 2018 | 15 | $2.9bn | n.a. | n.a. |
| Q2 2018 | 12 | $2.7bn | n.a. | n.a. |
| Q3 2018 | 15 | $2.5bn | n.a. | n.a. |
| Q4 2018 | 11 | $1.0bn | n.a. | n.a. |
| Q1 2019 | 13 | $1.4bn | n.a. | n.a. |
| Q2 2019 | 11 | $1.1bn | n.a. | n.a. |
| Q3 2019 | 13 | $1.3bn | n.a. | n.a. |
| Q4 2019 | 16 | $1.8bn | n.a. | n.a. |
| Q1 2020 | 11 | $1.3bn | n.a. | n.a. |
| Q2 2020 | 11 | $1.6bn | n.a. | n.a. |
| Q3 2020 | 10 | $1.8bn | n.a. | n.a. |
| Q4 2020 | 10 | $2.9bn | n.a. | n.a. |
| Q1 2021 | 18 | $2.9bn | n.a. | n.a. |
| Q2 2021 | 17 | $2.9bn | n.a. | n.a. |
| Q3 2021 | 11 | $2.7bn | n.a. | n.a. |
| Q4 2021 | 13 | $2.8bn | n.a. | n.a. |
| Q1 2022 | 16 | $2.4bn | n.a. | n.a. |
| Q2 2022 | 14 | $2.0bn | n.a. | n.a. |
| Q3 2022 | 16 | $2.4bn | n.a. | n.a. |
| Q4 2022 | 22 | $3.2bn | n.a. | n.a. |
| Q1 2023 | 22 | $3.4bn | n.a. | n.a. |
| Q2 2023 | 21 | $4.2bn | n.a. | n.a. |
| Q3 2023 | 22 | $3.9bn | n.a. | n.a. |
| Q4 2023 | 23 | $4.3bn | 13 | 9 |
| Q1 2024 | 14 | $3.8bn | 6 | 9 |
| Q2 2024 | 17 | $4.1bn | 10 | 8 |
| Q3 2024 | 13 | $4.2bn | 7 | 6 |
| Q4 2024 | 15 | $4.1bn | 8 | 7 |
| Q1 2025 | 12 | $3.4bn | 5 | 8 |
| Q2 2025 | 16 | $5.2bn | 11 | 4 |
| Q3 2025 | 16 | $5.4bn | 7 | 11 |
| Q4 2025 | 17 | $4.8bn | 11 | 23 |
| Q1 2026 | 17 | $5.0bn | 21 | 16 |
| Q2 2026 | 29 | $11.8bn | 25 | 17 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
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How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own FLEX, latest filings →Back to the 13F Explorer →