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M28 Capital Management LP

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13F filer, CIK 1807489, STAMFORD, CT

M28 Capital Management LP reported $47,155,240 across 9 holdings for the quarter ended 2026-06-30, in a 13F-HR filed 2026-08-13.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000902664-26-003441

Period
2026-06-30
Reported value
$47.2M
Holdings
9
Top 10 weight
100%
New
0
Sold out
0

Holdings, Q2 2026

Share positions as resolved from 13F-HR 0000902664-26-003441, largest first. % of portfolio is the value over $47,155,240, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
WVEWAVE LIFE SCIENCES LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 6,164,548 shares; 2024Q4: 5,664,548 shares; 2025Q1: 5,664,548 shares; 2025Q2: 5,664,548 shares; 2025Q3: 5,664,548 shares; 2025Q4: 5,664,548 shares; 2026Q1: 4,588,284 shares; 2026Q2: 4,588,284 shares 4,588,284$26.7M56.53%0Timeline
IVVDINVIVYD INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 9,248,250 shares; 2024Q4: 9,248,250 shares; 2025Q1: 9,248,250 shares; 2025Q2: 9,248,250 shares; 2025Q3: 9,248,250 shares; 2025Q4: 9,248,250 shares; 2026Q1: 9,248,250 shares; 2026Q2: 9,248,250 shares 9,248,250$8.07M17.11%0Timeline
TGTXTG THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 161,600 shares; 2024Q4: 161,600 shares; 2025Q1: 161,600 shares; 2025Q2: 161,600 shares; 2025Q3: 161,600 shares; 2025Q4: 161,600 shares; 2026Q1: 88,354 shares; 2026Q2: 88,354 shares 88,354$4.85M10.29%0Timeline
ARWRARROWHEAD PHARMACEUTICALS INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 67,400 shares; 2024Q4: 67,400 shares; 2025Q1: 67,400 shares; 2025Q2: 67,400 shares; 2025Q3: 67,400 shares; 2025Q4: 67,400 shares; 2026Q1: 36,851 shares; 2026Q2: 36,851 shares 36,851$3M6.37%0Timeline
GUTSFRACTYL HEALTH INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 1,856,117 shares; 2024Q4: 1,856,117 shares; 2025Q1: 1,856,117 shares; 2025Q2: 1,856,117 shares; 2025Q3: 1,856,117 shares; 2025Q4: 1,856,117 shares; 2026Q1: 1,856,117 shares; 2026Q2: 1,856,117 shares 1,856,117$1.47M3.13%0Timeline
PRQRPROQR THRAPEUTICS N VQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 1,019,498 shares; 2024Q4: 1,019,498 shares; 2025Q1: 1,019,498 shares; 2025Q2: 1,019,498 shares; 2025Q3: 1,019,498 shares; 2025Q4: 1,019,498 shares; 2026Q1: 599,793 shares; 2026Q2: 599,793 shares 599,793$1.12M2.37%0Timeline
SLNSILENCE THERAPEUTICS PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 185,100 shares; 2024Q4: 185,100 shares; 2025Q1: 185,100 shares; 2025Q2: 185,100 shares; 2025Q3: 185,100 shares; 2025Q4: 185,100 shares; 2026Q1: 101,203 shares; 2026Q2: 101,203 shares 101,203$1.11M2.36%0Timeline
RCKTROCKET PHARMACEUTICALS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 385,680 shares; 2024Q4: 385,680 shares; 2025Q1: 385,680 shares; 2025Q2: 385,680 shares; 2025Q3: 385,680 shares; 2025Q4: 385,680 shares; 2026Q1: 210,871 shares; 2026Q2: 210,871 shares 210,871$721K1.53%0Timeline
CRISCURIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 421,951 shares; 2024Q4: 521,059 shares; 2025Q1: 521,059 shares; 2025Q2: 521,059 shares; 2025Q3: 521,059 shares; 2025Q4: 521,059 shares; 2026Q1: 284,889 shares; 2026Q2: 284,889 shares 284,889$149K0.32%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 0000902664-26-003441 base2026-08-13acceptance 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 0000902664-26-003441 Quarter ended 2026-06-302026-08-13acceptance time not in the bulk data set
13F-HR 0000902664-26-002442 Quarter ended 2026-03-312026-05-14acceptance time not in the bulk data set
13F-HR 0000902664-26-000993 Quarter ended 2025-12-312026-02-13acceptance time not in the bulk data set
13F-HR 0000902664-25-004910 Quarter ended 2025-09-302025-11-13acceptance time not in the bulk data set
13F-HR 0000902664-25-003554 Quarter ended 2025-06-302025-08-13acceptance time not in the bulk data set
13F-HR 0000902664-25-002321 Quarter ended 2025-03-312025-05-14acceptance time not in the bulk data set
13F-HR 0000902664-25-000931 Quarter ended 2024-12-312025-02-13acceptance time not in the bulk data set
13F-HR 0000902664-24-006434 Quarter ended 2024-09-302024-11-12acceptance time not in the bulk data set
13F-HR 0000902664-24-005090 Quarter ended 2024-06-302024-08-13acceptance time not in the bulk data set
13F-HR 0000902664-24-003553 Quarter ended 2024-03-312024-05-14acceptance time not in the bulk data set
13F-HR 0000902664-24-001422 Quarter ended 2023-12-312024-02-12acceptance time not in the bulk data set
13F-HR 0000902664-23-005476 Quarter ended 2023-09-302023-11-13acceptance time not in the bulk data set
13F-HR 0000902664-23-004379 Quarter ended 2023-06-302023-08-11acceptance time not in the bulk data set
13F-HR 0000902664-23-003015 Quarter ended 2023-03-312023-05-12acceptance time not in the bulk data set
13F-HR 0000902664-23-001466 Quarter ended 2022-12-312023-02-10acceptance time not in the bulk data set
13F-HR 0000902664-22-004800 Quarter ended 2022-09-302022-11-10acceptance time not in the bulk data set
13F-HR 0000902664-22-003930 Quarter ended 2022-06-302022-08-12acceptance time not in the bulk data set
13F-HR 0000902664-22-002899 Quarter ended 2022-03-312022-05-13acceptance time not in the bulk data set
13F-HR 0000905718-22-000209 Quarter ended 2021-12-312022-02-11acceptance time not in the bulk data set