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Omega Fund Management, LLC

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13F filer, CIK 1637359, Boston, MA

Omega Fund Management, LLC reported $185,685,956 across 10 holdings 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 0001193125-26-350681

Period
2026-06-30
Reported value
$186M
Holdings
10
Top 10 weight
100%
New
1
Sold out
1

Largest buys vs the previous quarter

SecurityShares changeApprox. value
ODTXnew+2,893$54.1K

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
BCAXreduced-570,000-$16.9M
REPLexited-248,672-$1.91M

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, Q2 2026

Share positions as resolved from 13F-HR 0001193125-26-350681, largest first. % of portfolio is the value over $185,685,956, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
BCAXBICARA THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 2,204,650 shares; 2024Q4: 2,204,650 shares; 2025Q1: 2,204,650 shares; 2025Q2: 2,204,650 shares; 2025Q3: 2,204,650 shares; 2025Q4: 2,204,650 shares; 2026Q1: 2,392,150 shares; 2026Q2: 1,822,150 shares 1,822,150$54.1M29.14%-570,000Timeline
NUVBNUVATION BIO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 13,072,340 shares; 2024Q4: 13,072,340 shares; 2025Q1: 13,072,340 shares; 2025Q2: 11,042,728 shares; 2025Q3: 8,831,089 shares; 2025Q4: 8,081,089 shares; 2026Q1: 8,081,089 shares; 2026Q2: 8,081,089 shares 8,081,089$45.9M24.72%0Timeline
KMTSKESTRA MED TECHNOLOGIES LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 1,795,893 shares; 2025Q2: 1,645,893 shares; 2025Q3: 1,645,893 shares; 2025Q4: 1,373,591 shares; 2026Q1: 1,022,149 shares; 2026Q2: 1,022,149 shares 1,022,149$26M14%0Timeline
BBOTBRIDGEBIO ONCOLOGY THERAPEUTQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 3,289,661 shares; 2025Q4: 3,289,661 shares; 2026Q1: 3,289,661 shares; 2026Q2: 3,289,661 shares 3,289,661$25.1M13.5%0Timeline
BBNXBETA BIONICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 1,988,287 shares; 2025Q2: 1,988,287 shares; 2025Q3: 1,920,125 shares; 2025Q4: 1,316,183 shares; 2026Q1: 1,316,183 shares; 2026Q2: 1,316,183 shares 1,316,183$20.6M11.11%0Timeline
ALMSALUMIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 653,223 shares; 2024Q4: 653,223 shares; 2025Q1: 653,223 shares; 2025Q2: 653,223 shares; 2025Q3: 653,223 shares; 2025Q4: 653,223 shares; 2026Q1: 241,255 shares; 2026Q2: 241,255 shares 241,255$6.79M3.66%0Timeline
SANASANA BIOTECHNOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 843,750 shares; 2024Q4: 843,750 shares; 2025Q1: 843,750 shares; 2025Q2: 843,750 shares; 2025Q3: 843,750 shares; 2025Q4: 843,750 shares; 2026Q1: 843,750 shares; 2026Q2: 843,750 shares 843,750$2.94M1.59%0Timeline
IMAIMAGENEBIO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 455,361 shares; 2025Q4: 455,361 shares; 2026Q1: 455,361 shares; 2026Q2: 455,361 shares 455,361$2.69M1.45%0Timeline
ENGNENGENE HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 1,076,357 shares; 2024Q4: 526,357 shares; 2025Q1: 526,357 shares; 2025Q2: 526,357 shares; 2025Q3: 526,357 shares; 2025Q4: 876,357 shares; 2026Q1: 876,357 shares; 2026Q2: 876,357 shares 876,357$1.52M0.82%0Timeline
ODTXODYSSEY THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: not reported; 2026Q2: 2,893 shares 2,893$54.1K0.03%newTimeline

Sold out in Q2 2026

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
REPLREPLIMUNE GROUP INC248,672$1.91Mshares

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 0001193125-26-350681 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 0001193125-26-350681 Quarter ended 2026-06-302026-08-14acceptance time not in the bulk data set
13F-HR 0001193125-26-225480 Quarter ended 2026-03-312026-05-15acceptance time not in the bulk data set
13F-HR 0001193125-26-053268 Quarter ended 2025-12-312026-02-17acceptance time not in the bulk data set
13F-HR 0001193125-25-281790 Quarter ended 2025-09-302025-11-14acceptance time not in the bulk data set
13F-HR 0000950123-25-008066 Quarter ended 2025-06-302025-08-14acceptance time not in the bulk data set
13F-HR 0000950123-25-005509 Quarter ended 2025-03-312025-05-15acceptance time not in the bulk data set
13F-HR/A 0000950123-25-005507 Quarter ended 2024-12-312025-05-15acceptance time not in the bulk data set
13F-HR 0000950123-25-002355 Quarter ended 2024-12-312025-02-14acceptance time not in the bulk data set
13F-HR 0000950123-24-011486 Quarter ended 2024-09-302024-11-14acceptance time not in the bulk data set
13F-HR 0000950123-24-008730 Quarter ended 2024-06-302024-08-14acceptance time not in the bulk data set
13F-HR 0000950123-24-005045 Quarter ended 2024-03-312024-05-14acceptance time not in the bulk data set
13F-HR 0000950123-24-002504 Quarter ended 2023-12-312024-02-14acceptance time not in the bulk data set
13F-HR 0000950123-23-010476 Quarter ended 2023-09-302023-11-14acceptance time not in the bulk data set
13F-HR 0000950123-23-007696 Quarter ended 2023-06-302023-08-14acceptance time not in the bulk data set
13F-HR 0000950123-23-005263 Quarter ended 2023-03-312023-05-15acceptance time not in the bulk data set
13F-HR 0000950123-23-002007 Quarter ended 2022-12-312023-02-13acceptance time not in the bulk data set
13F-HR 0000950123-22-012070 Quarter ended 2022-09-302022-11-14acceptance time not in the bulk data set
13F-HR 0000950123-22-009090 Quarter ended 2022-06-302022-08-15acceptance time not in the bulk data set
13F-HR 0000950123-22-005699 Quarter ended 2022-03-312022-05-13acceptance time not in the bulk data set
13F-HR 0000950123-22-002360 Quarter ended 2021-12-312022-02-14acceptance time not in the bulk data set
13F-HR 0000950123-21-015480 Quarter ended 2021-09-302021-11-15acceptance time not in the bulk data set
13F-HR/A 0000950123-21-015603 Quarter ended 2021-03-312021-11-15acceptance time not in the bulk data set
13F-HR/A 0000950123-21-015607 Quarter ended 2021-06-302021-11-15acceptance time not in the bulk data set
13F-HR 0000950123-21-011084 Quarter ended 2021-06-302021-08-16acceptance time not in the bulk data set
13F-HR 0000950123-21-006880 Quarter ended 2021-03-312021-05-17acceptance time not in the bulk data set
13F-HR 0000950123-21-002713 Quarter ended 2020-12-312021-02-16acceptance time not in the bulk data set
13F-HR 0000950123-20-011928 Quarter ended 2020-09-302020-11-16acceptance time not in the bulk data set
13F-HR 0000950123-20-009147 Quarter ended 2020-06-302020-08-17acceptance time not in the bulk data set
13F-HR 0000950123-20-004802 Quarter ended 2020-03-312020-05-14acceptance time not in the bulk data set
13F-HR 0000950123-20-001796 Quarter ended 2019-12-312020-02-13acceptance time not in the bulk data set
13F-HR 0000950123-19-010754 Quarter ended 2019-09-302019-11-13acceptance time not in the bulk data set
13F-HR 0000950123-19-007724 Quarter ended 2019-06-302019-08-13acceptance time not in the bulk data set
13F-HR/A 0000950123-19-005615 Quarter ended 2019-03-312019-05-20acceptance time not in the bulk data set
13F-HR 0000950123-19-005079 Quarter ended 2019-03-312019-05-15acceptance time not in the bulk data set
13F-HR 0000950123-19-001091 Quarter ended 2018-12-312019-02-11acceptance time not in the bulk data set
13F-HR 0000950123-18-010593 Quarter ended 2018-09-302018-11-07acceptance time not in the bulk data set
13F-HR 0000950123-18-007267 Quarter ended 2018-06-302018-08-02acceptance time not in the bulk data set
13F-HR 0000950123-18-004151 Quarter ended 2018-03-312018-05-04acceptance time not in the bulk data set
13F-HR 0000950123-18-000798 Quarter ended 2017-12-312018-02-05acceptance time not in the bulk data set
13F-HR 0000950123-17-009490 Quarter ended 2017-09-302017-11-03acceptance time not in the bulk data set
13F-HR 0000950123-17-006325 Quarter ended 2017-06-302017-07-26acceptance time not in the bulk data set
13F-HR 0000950123-17-004097 Quarter ended 2017-03-312017-05-09acceptance time not in the bulk data set
13F-HR 0000950123-17-001390 Quarter ended 2016-12-312017-02-10acceptance time not in the bulk data set
13F-HR 0000950123-16-021058 Quarter ended 2016-09-302016-11-02acceptance time not in the bulk data set
13F-HR 0000950123-16-018706 Quarter ended 2016-06-302016-08-03acceptance time not in the bulk data set
13F-HR 0000950123-16-016121 Quarter ended 2016-03-312016-05-02acceptance time not in the bulk data set
13F-HR 0000950123-16-013919 Quarter ended 2015-12-312016-02-10acceptance time not in the bulk data set
13F-HR 0000950123-15-010742 Quarter ended 2015-09-302015-11-04acceptance time not in the bulk data set
13F-HR 0000950123-15-008290 Quarter ended 2015-06-302015-08-10acceptance time not in the bulk data set
13F-HR 0000950123-15-005268 Quarter ended 2015-03-312015-05-11acceptance time not in the bulk data set
13F-HR 0000950123-15-004059 Quarter ended 2014-12-312015-03-23acceptance time not in the bulk data set