BCLS II Investco, LP
Follow13F filer, CIK 1818893, BOSTON, MA
BCLS II Investco, LP filed a 13F-NT notice for the quarter ended 2026-06-30 on 2026-08-14.
Filed (acceptance time not in the bulk data set), ingested 13F-NT 0001193125-26-350462
- Bain Capital Life Sciences Investors, LLC
- Bain Capital Life Sciences Investors II, LLC
- Bain Capital Life Sciences Fund II, L.P.
- BCLS II Investco (GP), LLC
Changes against Q1 2026 are not shown: it was a notice, with the holdings in another manager's report (0 positions on file), so every position would read as new.
Stakes and trades reported after 2026-06-30
13D, 13G and Form 4 filings by this filer's group, dated after the 13F period, on securities the quarter does not hold as shares.
- ADARX PHARMACEUTICALS INC: 13G 6,728,970 shares, 6.3% of the class, 13G filed 2026-10-01, 0001193125-26-410626
Accepted , ingested
How Q2 2026 was built
Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).
| Filing | Role | Amendment | Filed | Accepted | Ingested |
|---|---|---|---|---|---|
| 13F-NT 0001193125-26-350462 | notice | 2026-08-14 | acceptance time not in the bulk data set |
Filings
Every filing of this filer: 13F reports and notices, the 13D and 13G it filed or is a reporting person of, and Forms 3, 4 and 5 it reported as an owner.
| Filing | Subject | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-NT 0001193125-26-350462 | Quarter ended 2026-06-30 | 2026-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001193125-26-226951 | Quarter ended 2026-03-31 | 2026-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001193125-26-054831 | Quarter ended 2025-12-31 | 2026-02-17 | acceptance time not in the bulk data set | |
| 13F-NT 0001193125-25-283122 | Quarter ended 2025-09-30 | 2025-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-008309 | Quarter ended 2025-06-30 | 2025-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-005451 | Quarter ended 2025-03-31 | 2025-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-002302 | Quarter ended 2024-12-31 | 2025-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-24-011423 | Quarter ended 2024-09-30 | 2024-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-24-007840 | Quarter ended 2024-06-30 | 2024-08-12 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-24-005487 | Quarter ended 2024-03-31 | 2024-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-24-001906 | Quarter ended 2023-12-31 | 2024-02-13 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-23-010845 | Quarter ended 2023-09-30 | 2023-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-23-008152 | Quarter ended 2023-06-30 | 2023-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-23-005345 | Quarter ended 2023-03-31 | 2023-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-23-002214 | Quarter ended 2022-12-31 | 2023-02-14 | acceptance time not in the bulk data set |