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TYNDALL CAPITAL PARTNERS L P

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13F filer, CIK 1219314, NEW YORK, NY

TYNDALL CAPITAL PARTNERS L P reported $451,594 across 1 holding for the quarter ended 2025-06-30, in a 13F-HR filed 2025-08-14.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001641172-25-023976

Changes against Q1 2025 are not shown: its report omitted holdings under a confidential treatment request (1 position on file), so every position would read as new.

The filing omits holdings under a confidential treatment request (H8). A later amendment may add them.

Period
2025-06-30
Reported value
$452K
Holdings
1
Top 10 weight
100%
New
Sold out

Holdings, Q2 2025

Share positions as resolved from 13F-HR 0001641172-25-023976, largest first. % of portfolio is the value over $451,594, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
CYCNCYCLERION THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 164,777 shares; 2024Q4: 164,777 shares; 2025Q1: 164,777 shares; 2025Q2: 155,187 shares 155,187$452K100%The filing omitted confidential holdings, a later amendment may add them.Timeline

How Q2 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 0001641172-25-023976 base2025-08-14acceptance time not in the bulk data set