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New Mountain Capital, L.L.C.

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13F filer, CIK 1407718, New York, NY

New Mountain Capital, L.L.C. reported $138,600,000 across 1 holding for the quarter ended 2026-06-30, in a 13F-HR filed 2026-08-14.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001172661-26-003453

Period
2026-06-30
Reported value
$139M
Holdings
1
Top 10 weight
100%
New
0
Sold out
0

Holdings, Q2 2026

Share positions as resolved from 13F-HR 0001172661-26-003453, largest first. % of portfolio is the value over $138,600,000, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
AVTRAVANTOR INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 14,000,000 shares; 2024Q4: 14,000,000 shares; 2025Q1: 14,000,000 shares; 2025Q2: 14,000,000 shares; 2025Q3: 14,000,000 shares; 2025Q4: 14,000,000 shares; 2026Q1: 14,000,000 shares; 2026Q2: 14,000,000 shares 14,000,000$139M100%0Timeline

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).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001172661-26-003453 base2026-08-14acceptance 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.

FilingSubjectFiledAcceptedIngested
13F-HR 0001172661-26-003453 Quarter ended 2026-06-302026-08-14acceptance time not in the bulk data set
13F-HR 0001172661-26-001765 Quarter ended 2026-03-312026-05-13acceptance time not in the bulk data set
13F-HR 0001172661-26-000966 Quarter ended 2025-12-312026-02-17acceptance time not in the bulk data set
13F-HR 0001172661-25-004866 Quarter ended 2025-09-302025-11-14acceptance time not in the bulk data set
13F-HR 0001172661-25-003441 Quarter ended 2025-06-302025-08-14acceptance time not in the bulk data set
13F-HR 0001172661-25-001942 Quarter ended 2025-03-312025-05-15acceptance time not in the bulk data set
13F-HR 0001172661-25-000797 Quarter ended 2024-12-312025-02-13acceptance time not in the bulk data set
13F-HR 0001172661-24-004971 Quarter ended 2024-09-302024-11-14acceptance time not in the bulk data set
13F-HR 0001172661-24-003501 Quarter ended 2024-06-302024-08-14acceptance time not in the bulk data set
13F-HR 0001172661-24-002419 Quarter ended 2024-03-312024-05-15acceptance time not in the bulk data set
13F-HR 0001172661-24-001108 Quarter ended 2023-12-312024-02-14acceptance time not in the bulk data set
13F-HR 0001172661-23-003886 Quarter ended 2023-09-302023-11-14acceptance time not in the bulk data set
13F-HR 0001172661-23-003101 Quarter ended 2023-06-302023-08-14acceptance time not in the bulk data set
13F-HR 0001172661-23-002267 Quarter ended 2023-03-312023-05-15acceptance time not in the bulk data set
13F-HR 0001172661-23-001380 Quarter ended 2022-12-312023-02-14acceptance time not in the bulk data set
13F-HR 0001172661-22-002380 Quarter ended 2022-09-302022-11-14acceptance time not in the bulk data set
13F-NT 0001172661-22-001975 Quarter ended 2022-06-302022-08-15acceptance time not in the bulk data set
13F-NT 0001172661-22-001399 Quarter ended 2022-03-312022-05-16acceptance time not in the bulk data set
13F-NT 0001172661-22-000534 Quarter ended 2021-12-312022-02-14acceptance time not in the bulk data set
13F-NT 0001172661-21-002399 Quarter ended 2021-09-302021-11-15acceptance time not in the bulk data set
13F-NT 0001172661-21-001791 Quarter ended 2021-06-302021-08-16acceptance time not in the bulk data set
13F-NT 0001172661-21-001291 Quarter ended 2021-03-312021-05-17acceptance time not in the bulk data set
13F-NT 0001172661-21-000810 Quarter ended 2020-12-312021-02-16acceptance time not in the bulk data set
13F-NT 0001172661-20-002276 Quarter ended 2020-09-302020-11-16acceptance time not in the bulk data set
13F-NT 0001172661-20-001800 Quarter ended 2020-06-302020-08-14acceptance time not in the bulk data set
13F-NT 0001172661-20-001256 Quarter ended 2020-03-312020-05-15acceptance time not in the bulk data set
13F-NT 0001172661-20-000632 Quarter ended 2019-12-312020-02-14acceptance time not in the bulk data set
13F-NT 0001172661-19-002286 Quarter ended 2019-09-302019-11-14acceptance time not in the bulk data set
13F-NT 0001172661-19-001763 Quarter ended 2019-06-302019-08-14acceptance time not in the bulk data set
13F-NT 0001172661-19-001275 Quarter ended 2019-03-312019-05-15acceptance time not in the bulk data set
13F-NT 0001172661-19-000892 Quarter ended 2018-12-312019-02-14acceptance time not in the bulk data set
13F-NT 0001172661-18-002177 Quarter ended 2018-09-302018-11-14acceptance time not in the bulk data set
13F-NT 0001172661-18-001632 Quarter ended 2018-06-302018-08-14acceptance time not in the bulk data set
13F-NT 0001172661-18-001070 Quarter ended 2018-03-312018-05-14acceptance time not in the bulk data set
13F-NT 0001172661-18-000800 Quarter ended 2017-12-312018-02-14acceptance time not in the bulk data set
13F-NT 0001172661-17-002122 Quarter ended 2017-09-302017-11-14acceptance time not in the bulk data set
13F-NT 0001172661-17-001696 Quarter ended 2017-06-302017-08-14acceptance time not in the bulk data set
13F-NT 0001172661-17-001213 Quarter ended 2017-03-312017-05-15acceptance time not in the bulk data set
13F-NT 0001172661-17-000755 Quarter ended 2016-12-312017-02-14acceptance time not in the bulk data set
13F-NT 0001172661-16-004337 Quarter ended 2016-09-302016-11-14acceptance time not in the bulk data set
13F-NT 0001172661-16-003891 Quarter ended 2016-06-302016-08-15acceptance time not in the bulk data set
13F-NT 0001172661-16-003436 Quarter ended 2016-03-312016-05-16acceptance time not in the bulk data set
13F-NT 0001172661-16-002927 Quarter ended 2015-12-312016-02-16acceptance time not in the bulk data set
13F-NT 0001172661-15-002089 Quarter ended 2015-09-302015-11-16acceptance time not in the bulk data set
13F-NT 0001172661-15-001650 Quarter ended 2015-06-302015-08-14acceptance time not in the bulk data set
13F-NT 0001172661-15-001217 Quarter ended 2015-03-312015-05-15acceptance time not in the bulk data set
13F-NT 0001172661-15-000700 Quarter ended 2014-12-312015-02-17acceptance time not in the bulk data set
13F-NT 0001172661-14-001854 Quarter ended 2014-09-302014-11-14acceptance time not in the bulk data set
13F-NT 0001172661-14-001481 Quarter ended 2014-06-302014-08-14acceptance time not in the bulk data set
13F-NT 0001172661-14-001121 Quarter ended 2014-03-312014-05-15acceptance time not in the bulk data set
13F-NT 0001172661-14-000732 Quarter ended 2013-12-312014-02-14acceptance time not in the bulk data set
13F-NT 0001172661-13-001519 Quarter ended 2013-09-302013-11-14acceptance time not in the bulk data set
13F-NT 0001172661-13-001216 Quarter ended 2013-06-302013-08-14acceptance time not in the bulk data set