- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 15 May 2026
- latest of these filings; the earliest 12 May 2026
- Managers listing it
- 18
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 4 listed it in both
- Shares listed
- 16,306,900
- combined, among listed positions
- Reported value
- $584m
- 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: 10 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,131,759.
Managers listing BIRK in Q1 2026
18 of 18 holders
Largest increases and reductions, by shares
Increases
- MFS Investment Managementexisting position · 3,180,948 shares now+2,175,805
- Fidelity (FMR LLC)existing position · 5,044,869 shares now+1,487,353
- Freestone Grove Partners LPnew position · 865,425 shares now+865,425
- Citadel Advisors LLCexisting position · 799,375 shares now+605,952
- Balyasny Asset Management LLCexisting position · 722,662 shares now+197,650
Reductions
- T. Rowe Price Associates Incexisting position · 1,978,858 shares now-971,522
- Point72 Asset Management LPexisting position · 1,902,618 shares now-898,766
- Verition Fund Management LLCexisting position · 209,063 shares now-175,430
- Marshall Wace LLPexisting position · 10,564 shares now-81,805
- Artisan Partners LPexisting position · 857,310 shares now-22,039
New positions and exits
New (3)
Exited (7)
- Renaissance Technologies LLCwas $17m
- Arrowstreet Capital LPwas $11m
- Schonfeld Strategic Advisors LLCwas $11m
- Susquehanna International Group LLPwas $7.1m
- ExodusPoint Capital Management LPwas $5.2m
- Holocene Advisors LPwas $2.1m
- D. E. Shaw & Co.was $701k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q4 2023 | 7 | $384m | 7 | 0 |
| Q1 2024 | 5 | $298m | 4 | 5 |
| Q2 2024 | 12 | $434m | 11 | 3 |
| Q3 2024 | 11 | $391m | 9 | 3 |
| Q4 2024 | 12 | $511m | 7 | 5 |
| Q1 2025 | 7 | $159m | 4 | 4 |
| Q2 2025 | 11 | $600m | 10 | 2 |
| Q3 2025 | 6 | $215m | 3 | 6 |
| Q4 2025 | 7 | $196m | 13 | 12 |
| Q1 2026 | 6 | $264m | 10 | 15 |
| Q2 2026 | 3 | $218m | 12 | 12 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
BIRK and AMZN →BIRK and TSLA →BIRK and HD →Choose a stock to compare with BIRK →
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 BIRK, latest filings →Back to the 13F Explorer →