Skip to content
Disclosery

Bain Capital Investors LLC

Follow

13F filer, CIK 1040508, Boston, MA

Bain Capital Investors LLC reported $4,623,341,991 across 7 holdings for the quarter ended 2025-12-31, in a 13F-HR filed 2026-02-17.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001193125-26-052994

Period
2025-12-31
Reported value
$4.62B
Holdings
7
Top 10 weight
100%
New
1
Sold out
0

Part of the filer group Bain Capital Life Sciences Investors, LLC

How groups are built

Largest buys vs the previous quarter

SecurityShares changeApprox. value
COHRnew+9,775,846$1.8B

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
KMTSreduced-1,846,887-$49M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q4 2025

Share positions as resolved from 13F-HR 0001193125-26-052994, largest first. % of portfolio is the value over $4,623,341,991, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
COHRCOHERENT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 9,775,846 shares 9,775,846$1.8B39.03%newTimeline
SGRYSURGERY PARTNERS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 49,946,972 shares; 2024Q4: 49,946,972 shares; 2025Q1: 49,946,972 shares; 2025Q2: 49,946,972 shares; 2025Q3: 49,946,972 shares; 2025Q4: 49,946,972 shares 49,946,972$772M16.69%0Timeline
KMTSKESTRA MED TECHNOLOGIES LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 27,019,225 shares; 2025Q2: 27,019,225 shares; 2025Q3: 27,019,225 shares; 2025Q4: 25,172,338 shares 25,172,338$668M14.44%-1,846,887Timeline
AVAHAVEANNA HEALTHCARE HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 81,600,880 shares; 2024Q4: 81,600,880 shares; 2025Q1: 81,600,880 shares; 2025Q2: 81,600,880 shares; 2025Q3: 81,600,880 shares; 2025Q4: 81,600,880 shares 81,600,880$667M14.42%0Timeline
WAYWAYSTAR HLDG CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 27,980,417 shares; 2024Q4: 27,980,417 shares; 2025Q1: 21,754,536 shares; 2025Q2: 18,055,049 shares; 2025Q3: 13,243,539 shares; 2025Q4: 13,243,539 shares 13,243,539$434M9.38%0Timeline
NTNXNUTANIX INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 16,854,032 shares; 2024Q4: 16,854,032 shares; 2025Q1: 10,960,935 shares; 2025Q2: 5,355,285 shares; 2025Q3: 5,355,285 shares; 2025Q4: 5,355,285 shares 5,355,285$277M5.99%0Timeline
ADVADVANTAGE SOLUTIONS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,890,000 shares; 2024Q4: 2,890,000 shares; 2025Q1: 2,890,000 shares; 2025Q2: 2,890,000 shares; 2025Q3: 2,890,000 shares; 2025Q4: 2,890,000 shares 2,890,000$2.54M0.06%0Timeline

How Q4 2025 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).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001193125-26-052994 base2026-02-17acceptance time not in the bulk data set