- Quarter end
- 31 Mar 2025
- the date the book describes
- Filed
- 5 Nov 2026
- latest of these filings; the earliest 2 May 2025
- Managers listing it
- 9
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q4 2024 and Q1 2025; 8 listed it in both
- Shares listed
- 19,592,564
- combined, among listed positions
- Reported value
- $817m
- combined, at the quarter end
Among the 95 comparable managers: 3 buyers (opened or added shares) and 7 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 BRKR in Q1 2025
Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.
9 of 9 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Fidelity (FMR LLC) | 10,628,099 | $444m | under 0.1% | Trimmed | -3,221,499 | 5 Nov 2026 (the filing on sec.gov) |
| MFS Investment Management | 2,396,120 | $100m | under 0.1% | Trimmed | -556,183 | 2 May 2025 (the filing on sec.gov) |
| AllianceBernstein LP | 2,390,366 | $100m | under 0.1% | Trimmed | -339,351 | 15 May 2025 (the filing on sec.gov) |
| AQR Capital Management LLC | 1,476,605 | $61m | 0.06% | Added | +586,516 | 15 May 2025 (the filing on sec.gov) |
| Steadfast Capital Management LP | 938,563 | $39m | 1.04% | Trimmed | -153,165 | 15 May 2025 (the filing on sec.gov) |
| Two Sigma Investments LP | 844,771 | $35m | 0.08% | Added | +328,539 | 15 May 2025 (the filing on sec.gov) |
| Janus Henderson Group Ltd | 821,251 | $35m | under 0.1% | Trimmed | -121,985 | 15 May 2025 (the filing on sec.gov) |
| Quantbot Technologies LP | 91,789 | $3.8m | 0.12% | New | new | 13 May 2025 (the filing on sec.gov) |
| Farallon Capital Management LLC | 5,000 | $209k | under 0.1% | Held | 0 | 15 May 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Q4 2024 to Q1 2025, among managers that listed it in both quarters or opened it.
Increases
- AQR Capital Management LLCexisting position · 1,476,605 shares now+586,516
- Two Sigma Investments LPexisting position · 844,771 shares now+328,539
- Quantbot Technologies LPnew position · 91,789 shares now+91,789
Reductions
- Fidelity (FMR LLC)existing position · 10,628,099 shares now-3,221,499
- MFS Investment Managementexisting position · 2,396,120 shares now-556,183
- AllianceBernstein LPexisting position · 2,390,366 shares now-339,351
- Steadfast Capital Management LPexisting position · 938,563 shares now-153,165
- Janus Henderson Group Ltdexisting position · 821,251 shares now-121,985
New positions and exits
At least these many: a manager is shown exiting only where its own filing shows the position gone.
New (1)
Exited (2)
- Marshall Wace LLPwas $46m
- Scion Asset Management LLCwas $4.4m
Ownership over time
Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
10 in Q3 2024 to 9 in Q2 2026
Tracked managers listing it, at least.
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 6 | $570m | n.a. | n.a. |
| Q3 2013 | 6 | $754m | n.a. | n.a. |
| Q4 2013 | 5 | $606m | n.a. | n.a. |
| Q1 2014 | 4 | $710m | n.a. | n.a. |
| Q2 2014 | 5 | $776m | n.a. | n.a. |
| Q3 2014 | 3 | $594m | n.a. | n.a. |
| Q4 2014 | 5 | $816m | n.a. | n.a. |
| Q1 2015 | 6 | $674m | n.a. | n.a. |
| Q2 2015 | 6 | $1.0bn | n.a. | n.a. |
| Q3 2015 | 5 | $602m | n.a. | n.a. |
| Q4 2015 | 10 | $1.3bn | n.a. | n.a. |
| Q1 2016 | 14 | $1.4bn | n.a. | n.a. |
| Q2 2016 | 10 | $935m | n.a. | n.a. |
| Q3 2016 | 9 | $1.0bn | n.a. | n.a. |
| Q4 2016 | 8 | $960m | n.a. | n.a. |
| Q1 2017 | 8 | $1.0bn | n.a. | n.a. |
| Q2 2017 | 14 | $1.3bn | n.a. | n.a. |
| Q3 2017 | 11 | $1.3bn | n.a. | n.a. |
| Q4 2017 | 10 | $1.4bn | n.a. | n.a. |
| Q1 2018 | 12 | $1.2bn | n.a. | n.a. |
| Q2 2018 | 12 | $1.2bn | n.a. | n.a. |
| Q3 2018 | 11 | $1.4bn | n.a. | n.a. |
| Q4 2018 | 12 | $1.4bn | n.a. | n.a. |
| Q1 2019 | 13 | $1.8bn | n.a. | n.a. |
| Q2 2019 | 12 | $2.4bn | n.a. | n.a. |
| Q3 2019 | 11 | $2.4bn | n.a. | n.a. |
| Q4 2019 | 13 | $2.9bn | n.a. | n.a. |
| Q1 2020 | 11 | $2.1bn | n.a. | n.a. |
| Q2 2020 | 9 | $2.2bn | n.a. | n.a. |
| Q3 2020 | 10 | $2.2bn | n.a. | n.a. |
| Q4 2020 | 10 | $3.0bn | n.a. | n.a. |
| Q1 2021 | 8 | $3.6bn | n.a. | n.a. |
| Q2 2021 | 14 | $4.3bn | n.a. | n.a. |
| Q3 2021 | 18 | $4.2bn | n.a. | n.a. |
| Q4 2021 | 15 | $4.1bn | n.a. | n.a. |
| Q1 2022 | 13 | $3.0bn | n.a. | n.a. |
| Q2 2022 | 14 | $2.9bn | n.a. | n.a. |
| Q3 2022 | 14 | $1.7bn | n.a. | n.a. |
| Q4 2022 | 10 | $2.0bn | n.a. | n.a. |
| Q1 2023 | 12 | $2.1bn | n.a. | n.a. |
| Q2 2023 | 12 | $2.0bn | n.a. | n.a. |
| Q3 2023 | 11 | $1.4bn | n.a. | n.a. |
| Q4 2023 | 13 | $1.7bn | 8 | 6 |
| Q1 2024 | 10 | $2.1bn | 7 | 4 |
| Q2 2024 | 10 | $1.7bn | 8 | 4 |
| Q3 2024 | 10 | $1.8bn | 6 | 4 |
| Q4 2024 | 12 | $1.4bn | 8 | 5 |
| Q1 2025 | 9 | $817m | 3 | 7 |
| Q2 2025 | 5 | $189m | 4 | 2 |
| Q3 2025 | 7 | $123m | 7 | 2 |
| Q4 2025 | 9 | $1.1bn | 14 | 20 |
| Q1 2026 | 6 | $738m | 12 | 15 |
| Q2 2026 | 9 | $1.8bn | 21 | 14 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
BRKR and LLY →BRKR and JNJ →BRKR and VRTX →Choose a stock to compare with BRKR →
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 BRKR, latest filings →Back to the 13F Explorer →