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Disclosery

BCHT BIRCHTECH CORP

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Common Stock (common), issuer CIK 728385

2 managers (2 13F filers) reported a position in BCHT shares at 2025-12-31, 99,084 shares in all. 2 filers opened a position and 0 filers sold out during the quarter.

Managers
2
13F filers
2
New
2
Added
0
Reduced
0
Sold out
0
Shares held by filers
99,084

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

  • LYTTON LAURENCE W
    1,380,513 shares, 5.2% in a 13G as of 2026-09-29,0000935836-26-000520
    Accepted , ingested

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Ancora Advisors LLCin group Ancora Advisors LLC52,884$198K<0.01%new13F-HRTimelineGroup
Mink Brook Asset Management LLCin group Mink Brook Asset Management L…46,200$147K0.09%new13F-HRTimelineGroup

Events

  • LYTTON LAURENCE W reported 1,380,513 BCHT shares, 5.2% of the class, as of 2026-09-29, in a 13G filed 2026-10-05. 0000935836-26-000520

    Accepted , ingested