- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 18 May 2026
- latest of these filings; the earliest 12 May 2026
- Managers listing it
- 23
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 2 listed it in both
- Shares listed
- 1,482,154
- combined, among listed positions
- Reported value
- $101m
- 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 9 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +265,676.
Managers listing WMK in Q1 2026
23 of 23 holders
Largest increases and reductions, by shares
Increases
- Arrowstreet Capital LPexisting position · 171,930 shares now+164,546
- Citadel Advisors LLCnew position · 107,282 shares now+107,282
- Two Sigma Investments LPexisting position · 228,518 shares now+55,933
- AQR Capital Management LLCexisting position · 62,661 shares now+32,013
- Balyasny Asset Management LLCnew position · 30,433 shares now+30,433
Reductions
- Millennium Management LLCexisting position · 192,654 shares now-69,390
- Jane Street Group LLCexisting position · 102,025 shares now-68,738
- Maverick Capital Ltdexisting position · 9,908 shares now-39,261
- Renaissance Technologies LLCexisting position · 176,436 shares now-16,600
- Caxton Associates LLPexisting position · 7,831 shares now-1,763
New positions and exits
New (4)
Exited (3)
- Squarepoint Ops LLCwas $1.2m
- Man Group PLCwas $684k
- Brevan Howard Capital Management LPwas $269k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 2 | $28m | n.a. | n.a. |
| Q3 2013 | 3 | $38m | n.a. | n.a. |
| Q4 2013 | 3 | $39m | n.a. | n.a. |
| Q1 2014 | 3 | $35m | n.a. | n.a. |
| Q2 2014 | 3 | $31m | n.a. | n.a. |
| Q3 2014 | 3 | $26m | n.a. | n.a. |
| Q4 2014 | 2 | $29m | n.a. | n.a. |
| Q1 2015 | 2 | $30m | n.a. | n.a. |
| Q2 2015 | 2 | $26m | n.a. | n.a. |
| Q3 2015 | 2 | $27m | n.a. | n.a. |
| Q4 2015 | 2 | $29m | n.a. | n.a. |
| Q1 2016 | 2 | $31m | n.a. | n.a. |
| Q2 2016 | 2 | $34m | n.a. | n.a. |
| Q3 2016 | 2 | $35m | n.a. | n.a. |
| Q4 2016 | 2 | $45m | n.a. | n.a. |
| Q1 2017 | 3 | $50m | n.a. | n.a. |
| Q2 2017 | 2 | $12m | n.a. | n.a. |
| Q3 2017 | 2 | $9.7m | n.a. | n.a. |
| Q4 2017 | 1 | $3.6m | n.a. | n.a. |
| Q1 2018 | 2 | $11m | n.a. | n.a. |
| Q2 2018 | 2 | $17m | n.a. | n.a. |
| Q3 2018 | 2 | $16m | n.a. | n.a. |
| Q4 2018 | 4 | $18m | n.a. | n.a. |
| Q1 2019 | 3 | $4.2m | n.a. | n.a. |
| Q2 2019 | 3 | $14m | n.a. | n.a. |
| Q3 2019 | 2 | $4.8m | n.a. | n.a. |
| Q4 2019 | 2 | $3.9m | n.a. | n.a. |
| Q1 2020 | 2 | $4.0m | n.a. | n.a. |
| Q2 2020 | 4 | $21m | n.a. | n.a. |
| Q3 2020 | 3 | $14m | n.a. | n.a. |
| Q4 2020 | 3 | $13m | n.a. | n.a. |
| Q1 2021 | 4 | $14m | n.a. | n.a. |
| Q2 2021 | 4 | $14m | n.a. | n.a. |
| Q3 2021 | 3 | $7.8m | n.a. | n.a. |
| Q4 2021 | 3 | $6.9m | n.a. | n.a. |
| Q1 2022 | 2 | $13m | n.a. | n.a. |
| Q2 2022 | 1 | $1.1m | n.a. | n.a. |
| Q3 2022 | 1 | $3.5m | n.a. | n.a. |
| Q4 2022 | 1 | $3.3m | n.a. | n.a. |
| Q1 2023 | 1 | $2.7m | n.a. | n.a. |
| Q2 2023 | 2 | $2.0m | n.a. | n.a. |
| Q3 2023 | 1 | $12m | n.a. | n.a. |
| Q2 2025 | 1 | $3.8m | 1 | 0 |
| Q3 2025 | 1 | $6.3m | 1 | 0 |
| Q4 2025 | 2 | $3.8m | 12 | 12 |
| Q1 2026 | 2 | $1.2m | 16 | 9 |
| Q2 2026 | 1 | $1.7m | 14 | 14 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
WMK and PM →WMK and KO →WMK and COST →Choose a stock to compare with WMK →
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 WMK, latest filings →Back to the 13F Explorer →