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Disclosery

BCHT BIRCHTECH CORP

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Common Stock (common), issuer CIK 728385

23 managers (23 13F filers) reported a position in BCHT shares at 2026-03-31, 3,294,533 shares in all. 21 filers opened a position and 0 filers sold out during the quarter.

Managers
23
13F filers
23
New
21
Added
1
Reduced
1
Sold out
0
Shares held by filers
3,294,533

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
HEARTLAND ADVISORS INC1,000,000$1.9M0.1%new13F-HRTimeline
CHAPIN DAVIS, INC.686,693$1.3M0.29%new13F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC428,686$815K0.02%+375,80213F-HRTimelineGroup
Aristides Capital LLC425,000$808K0.27%new13F-HRTimeline
WHITE PINE CAPITAL LLC351,885$669K0.18%new13F-HR/ATimeline
Sigma Planning Corp52,412$99.6K<0.01%new13F-HRTimeline
ARS Investment Partners, LLC51,100$97.1K0.01%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC50,994$96.9K<0.01%new13F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth42,700$81.1K<0.01%new13F-HRTimelineGroup
Diametric Capital, LP41,685$77.8K0.02%new13F-HRTimeline
HRT FINANCIAL LP33,855$64K<0.01%new13F-HRTimeline
Mink Brook Asset Management LLCin group Mink Brook Asset Management L…30,000$57K0.03%-16,20013F-HRTimelineGroup
GTS SECURITIES LLC25,233$47.9K<0.01%new13F-HRTimeline
Crewe Advisors LLC16,600$31.5K<0.01%new13F-HRTimeline
WATERS PARKERSON & CO., LLC13,000$24.7K<0.01%new13F-HRTimeline
CIBC WORLD MARKET INC.10,607$20.2K<0.01%new13F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC10,377$19.7K<0.01%new13F-HRTimeline
Smartleaf Asset Management LLC9,091$17K<0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG7,306$13.9K<0.01%new13F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/4,799$10.4K<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY2,500$4.75K<0.01%new13F-HRTimelineGroup
Caitong International Asset Management …9$17<0.01%new13F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1$2<0.01%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