- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 12 May 2026
- Managers listing it
- 31
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 14 listed it in both
- Shares listed
- 81,670,925
- combined, among listed positions
- Reported value
- $5.3bn
- combined, at the quarter end
AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.
Among the 91 comparable managers: 21 buyers (opened or added shares) and 16 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +62,041.
Managers listing FLEX in Q1 2026
31 of 31 holders
Largest increases and reductions, by shares
Increases
- Wellington Management Group LLPexisting position · 20,238,286 shares now+2,601,854
- Squarepoint Ops LLCnew position · 1,017,160 shares now+1,017,160
- Citadel Advisors LLCexisting position · 856,753 shares now+742,773
- D. E. Shaw & Co.existing position · 689,426 shares now+604,516
- Jane Street Group LLCexisting position · 447,985 shares now+424,614
Reductions
- Janus Henderson Group Ltdexisting position · 20,619,740 shares now-1,711,705
- Fidelity (FMR LLC)existing position · 16,381,465 shares now-1,125,665
- Invesco Ltdexisting position · 7,236,401 shares now-1,054,083
- Artisan Partners LPexisting position · 548,306 shares now-881,054
- AllianceBernstein LPexisting position · 2,166,103 shares now-810,699
New positions and exits
New (6)
Exited (6)
- Arrowstreet Capital LPwas $57m
- Schonfeld Strategic Advisors LLCwas $7.9m
- Verition Fund Management LLCwas $7.1m
- Winton Group Ltdwas $2.1m
- Acadian Asset Management LLCwas $159k
- Walleye Capital LLCwas $33k
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.
FLEX and AAPL →FLEX and SNDK →FLEX and CSCO →Choose a stock to compare with FLEX →
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 →