Security key
10806X102
CUSIP: 10806X102
Security key
10806X102
Report period
Q2 2025
Institutions
357
Top holders
10
Broader feeds
Ownership snapshot
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Quick read
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| KKR Genetic Disorder L.P. |
13D/G
3/4/5
10%+ Owner
|
7%
|
$476,864,517
13,260,971 shares
|
-$215,760,000 | 12 May 2025 |
| VIKING GLOBAL INVESTORS LP |
3/4/5
13F
10%+ Owner · Company
|
9.5%
|
$816,436,500
18,555,375 shares
|
— | 27 Jun 2025 |
| Kohlberg Kravis Roberts & Co. L.P. |
13F
Company
|
9.9%
|
$665,851,767
19,260,971 shares
|
— | 31 Mar 2025 |
| VANGUARD GROUP INC |
13F
Company
|
7.6%
|
$515,098,014
14,900,145 shares
|
— | 31 Mar 2025 |
| BlackRock, Inc. |
13F
Company
|
6.8%
|
$461,768,637
13,357,496 shares
|
— | 31 Mar 2025 |
| Janus Henderson Group Ltd. |
13F
Company
|
3.7%
|
$251,725,223
7,171,399 shares
|
— | 31 Mar 2025 |
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Investor-level positions for this CUSIP, loaded as an interactive table.
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|