- Quarter end
- 30 Jun 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 3 Aug 2026
- Managers listing it
- 24
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q1 2026 and Q2 2026; 4 listed it in both
- Shares listed
- 10,586,772
- combined, among listed positions
- Reported value
- $1.6bn
- 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: 16 buyers (opened or added shares) and 11 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,483,252.
Managers listing OSK in Q2 2026
24 of 24 holders
Largest increases and reductions, by shares
Increases
- AQR Capital Management LLCexisting position · 3,379,539 shares now+2,015,387
- Capital Research Global Investorsexisting position · 1,736,850 shares now+337,503
- Marshall Wace LLPexisting position · 346,150 shares now+275,782
- Invesco Ltdexisting position · 1,921,458 shares now+213,219
- Citadel Advisors LLCexisting position · 62,671 shares now+60,607
Reductions
- Fidelity (FMR LLC)existing position · 1,701,599 shares now-275,377
- Millennium Management LLCexisting position · 175,312 shares now-75,401
- Voloridge Investment Management LLCexisting position · 22,528 shares now-47,183
- Man Group PLCexisting position · 30,920 shares now-20,903
- Balyasny Asset Management LLCexisting position · 5,303 shares now-16,338
New positions and exits
New (4)
Exited (4)
- Renaissance Technologies LLCwas $6.3m
- Squarepoint Ops LLCwas $1.3m
- Maverick Capital Ltdwas $1.3m
- Susquehanna International Group LLPwas $493k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 3 | $345m | n.a. | n.a. |
| Q3 2013 | 3 | $547m | n.a. | n.a. |
| Q4 2013 | 6 | $597m | n.a. | n.a. |
| Q1 2014 | 3 | $676m | n.a. | n.a. |
| Q2 2014 | 3 | $615m | n.a. | n.a. |
| Q3 2014 | 5 | $519m | n.a. | n.a. |
| Q4 2014 | 2 | $544m | n.a. | n.a. |
| Q1 2015 | 6 | $851m | n.a. | n.a. |
| Q2 2015 | 7 | $798m | n.a. | n.a. |
| Q3 2015 | 8 | $755m | n.a. | n.a. |
| Q4 2015 | 6 | $797m | n.a. | n.a. |
| Q1 2016 | 5 | $917m | n.a. | n.a. |
| Q2 2016 | 6 | $837m | n.a. | n.a. |
| Q3 2016 | 11 | $992m | n.a. | n.a. |
| Q4 2016 | 15 | $985m | n.a. | n.a. |
| Q1 2017 | 11 | $930m | n.a. | n.a. |
| Q2 2017 | 8 | $833m | n.a. | n.a. |
| Q3 2017 | 12 | $935m | n.a. | n.a. |
| Q4 2017 | 18 | $908m | n.a. | n.a. |
| Q1 2018 | 15 | $633m | n.a. | n.a. |
| Q2 2018 | 17 | $616m | n.a. | n.a. |
| Q3 2018 | 15 | $464m | n.a. | n.a. |
| Q4 2018 | 15 | $344m | n.a. | n.a. |
| Q1 2019 | 10 | $348m | n.a. | n.a. |
| Q2 2019 | 7 | $341m | n.a. | n.a. |
| Q3 2019 | 7 | $313m | n.a. | n.a. |
| Q4 2019 | 9 | $419m | n.a. | n.a. |
| Q1 2020 | 8 | $382m | n.a. | n.a. |
| Q2 2020 | 8 | $531m | n.a. | n.a. |
| Q3 2020 | 9 | $567m | n.a. | n.a. |
| Q4 2020 | 15 | $517m | n.a. | n.a. |
| Q1 2021 | 7 | $979m | n.a. | n.a. |
| Q2 2021 | 11 | $1.2bn | n.a. | n.a. |
| Q3 2021 | 7 | $846m | n.a. | n.a. |
| Q4 2021 | 7 | $1.0bn | n.a. | n.a. |
| Q1 2022 | 5 | $761m | n.a. | n.a. |
| Q2 2022 | 9 | $648m | n.a. | n.a. |
| Q3 2022 | 8 | $510m | n.a. | n.a. |
| Q4 2022 | 8 | $633m | n.a. | n.a. |
| Q1 2023 | 7 | $492m | n.a. | n.a. |
| Q2 2023 | 10 | $306m | n.a. | n.a. |
| Q3 2023 | 18 | $621m | n.a. | n.a. |
| Q4 2023 | 13 | $441m | 4 | 9 |
| Q1 2024 | 9 | $371m | 2 | 6 |
| Q2 2024 | 7 | $237m | 3 | 3 |
| Q3 2024 | 10 | $239m | 7 | 2 |
| Q4 2024 | 11 | $290m | 5 | 5 |
| Q1 2025 | 11 | $307m | 8 | 2 |
| Q2 2025 | 6 | $290m | 4 | 2 |
| Q3 2025 | 8 | $440m | 5 | 3 |
| Q4 2025 | 8 | $520m | 10 | 22 |
| Q1 2026 | 5 | $502m | 14 | 17 |
| Q2 2026 | 6 | $962m | 16 | 11 |
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 OSK, latest filings →Back to the 13F Explorer →