Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| FUEL TECH, INC.FTEK · Entity 1599 | Director · President & CEO | March 24, 2026 | March 27, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
FUEL TECH, INC.
Report date March 24, 2026 · Filed March 27, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Restricted Stock UnitsSEC Table II · derivative / convertible security | Direct | 20,850 |
Reported balance
After 2026-03-24 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2026-03-24 · Grant · Acquired 20,850 · Balance 20,850 F1: Each Restricted Stock Unit represents a contingent right to receive one stock of FTEK Common Stock. F2: The Restricted Stock Units vest in three installments: (i) one-third of the total RSUs awarded shall vest on the one year anniversary after the transaction date shown above, (ii) one-third shall vest on the second anniversary of the transaction date shown above, and (iii) one-third shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date. |
Filing footnotes · ownership attribution and instrument terms
F1: Each Restricted Stock Unit represents a contingent right to receive one stock of FTEK Common Stock.
F2: The Restricted Stock Units vest in three installments: (i) one-third of the total RSUs awarded shall vest on the one year anniversary after the transaction date shown above, (ii) one-third shall vest on the second anniversary of the transaction date shown above, and (iii) one-third shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| March 24, 2026 Filed Mar 27, 2026 20:03 UTC | FUEL TECH, INC. FTEK · Entity 1599 | GrantRestricted Stock Units · Derivative | 20,850 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-26-010081 · rdgdoc.xml · derivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 20,850 Underlying: Common Stock · 20,850 shares Expires not disclosed F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one stock of FTEK Common Stock. F2 · derivative.exercise_date: The Restricted Stock Units vest in three installments: (i) one-third of the total RSUs awarded shall vest on the one year anniversary after the transaction date shown above, (ii) one-third shall vest on the second anniversary of the transaction date shown above, and (iii) one-third shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date. F2 · derivative.expiration_date: The Restricted Stock Units vest in three installments: (i) one-third of the total RSUs awarded shall vest on the one year anniversary after the transaction date shown above, (ii) one-third shall vest on the second anniversary of the transaction date shown above, and (iii) one-third shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date. Read SEC document |
| March 06, 2026 Filed Mar 9, 2026 20:05 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 10,000 | $1.24 | $12,400.00 |
DisclosureSEC source: 0001437749-26-007356 · rdgdoc.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 549,513 Read SEC document |
| March 28, 2025 Filed Apr 1, 2025 20:03 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 15,000 | $1.05 | $15,750.00 |
DisclosureSEC source: 0001437749-25-010449 · rdgdoc.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 485,879 Read SEC document |
| September 12, 2024 Filed Sep 16, 2024 10:06 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 20,000 | $1.02 | $20,400.00 |
DisclosureSEC source: 0001437749-24-029188 · rdgdoc.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 460,513 F1 · price: The price reported in Column 4 is a weighted average share price. The shares were purchased in multiple transactions for an average price of $1.02. The reporting person undertakes to provide to any security holder of Fuel Tech, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Read SEC document |
| August 09, 2024 Filed Aug 12, 2024 11:23 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 20,000 | $1.04 | $20,896.00 |
DisclosureSEC source: 0001437749-24-025946 · rdgdoc.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 440,513 F1 · price: The price reported in Column 4 is a weighted average share price. The shares were purchased in multiple transactions for an average price of $1.044803. The reporting person undertakes to provide to any security holder of Fuel Tech, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Read SEC document |
| February 29, 2024 Filed Mar 4, 2024 21:04 UTC | FUEL TECH, INC. FTEK · Entity 1599 | GrantRestricted Stock Units · Derivative | 31,100 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-24-006418 · rdgdoc.xml · derivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 31,100 Underlying: Common Stock · 31,100 shares Expires not disclosed F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one stock of FTEK Common Stock. F2 · derivative.exercise_date: The Restricted Stock Units vest in three installments: (i) one-third of the total RSUs awarded shall vest on the one year anniversary after the transaction date shown above, (ii) one-third shall vest on the second anniversary of the transaction date shown above, and (iii) one-third shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date. F2 · derivative.expiration_date: The Restricted Stock Units vest in three installments: (i) one-third of the total RSUs awarded shall vest on the one year anniversary after the transaction date shown above, (ii) one-third shall vest on the second anniversary of the transaction date shown above, and (iii) one-third shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date. Read SEC document |
| August 11, 2023 Filed Aug 14, 2023 20:02 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 15,000 | $1.20 | $17,985.00 |
DisclosureSEC source: 0001437749-23-023655 · rdgdoc.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 344,755 F1 · price: The price reported in Column 4 is a weighted average share price. The shares were purchased in multiple transactions at prices ranging from $1.19 to $1.20, inclusive. The reporting person undertakes to provide to any security holder of Fuel Tech, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Read SEC document |
| June 02, 2022 Filed Jun 6, 2022 20:07 UTC | FUEL TECH, INC. FTEK · Entity 1599 | GrantRestricted Stock Units · Derivative | 151,515 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-22-014396 · rdgdoc.xml · derivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 151,515 Underlying: Common Stock · 151,515 shares Expires not disclosed F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one stock of FTEK Common Stock. F2 · derivative.exercise_date: The Restricted Stock Units vest in two installments: (i) one half of the total RSUs awarded shall vest on the second anniversary after the transaction date shown above, and (ii) the final one half shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date. F2 · derivative.expiration_date: The Restricted Stock Units vest in two installments: (i) one half of the total RSUs awarded shall vest on the second anniversary after the transaction date shown above, and (ii) the final one half shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date. Read SEC document |
| May 17, 2022 Filed May 19, 2022 20:30 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 20,000 | $1.20 | $23,998.00 |
DisclosureSEC source: 0001437749-22-013066 · rdgdoc.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 329,755 F1 · price: The price reported in Column 4 is a weighted average share price. The shares were purchased in multiple transactions at prices ranging from $1.199781 to $1.20, inclusive. The reporting person undertakes to provide to any security holder of Fuel Tech, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Read SEC document |
| December 23, 2020 Filed Dec 28, 2020 22:01 UTC | FUEL TECH, INC. FTEK · Entity 1599 | SaleCommon Stock | 75,000 | $5.01 | $375,975.00 |
DisclosureSEC source: 0001437749-20-025978 · rdgdoc.xml · nonDerivative · entry 2 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 309,755 Read SEC document |
| December 22, 2020 Filed Dec 28, 2020 22:01 UTC | FUEL TECH, INC. FTEK · Entity 1599 | SaleCommon Stock | 125,000 | $4.25 | $531,000.00 |
DisclosureSEC source: 0001437749-20-025978 · rdgdoc.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 384,755 Read SEC document |
| March 17, 2020 Filed Mar 18, 2020 20:39 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 15,000 | $0.43 | $6,468.00 |
DisclosureSEC source: 0000846913-20-000023 · wf-form4_158456397846933.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 524,407 F1 · price: The price reported in Column 4 is a weighted average share price. The shares were purchased in multiple transactions at prices ranging from $0.427 to $0.450, inclusive. The reporting person undertakes to provide to any security holder of Fuel Tech, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Read SEC document |
| September 06, 2019 Filed Sep 6, 2019 20:37 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 20,000 | $1.01 | $20,140.00 |
DisclosureSEC source: 0000846913-19-000069 · wf-form4_156780221984929.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 509,407 F1 · price: 1. The price reported in Column 4 is a weighted average share price. The shares were purchased in multiple transactions at prices ranging from $0.9599 to $1.03, inclusive. The reporting person undertakes to provide to any security holder of Fuel Tech, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Read SEC document |
| June 18, 2019 Filed Jun 18, 2019 20:45 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 15,000 | $1.22 | $18,225.00 |
DisclosureSEC source: 0000846913-19-000056 · wf-form4_156089071865681.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 489,407 F1 · price: The price reported in Column 4 is a weighted average share price. The shares were purchased in multiple transactions at prices ranging from $1.20 to $1.227, inclusive. The reporting person undertakes to provide to any security holder of Fuel Tech, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Read SEC document |
| August 23, 2018 Filed Aug 24, 2018 20:19 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 2,033 | $1.08 | $2,195.64 |
DisclosureSEC source: 0000846913-18-000059 · wf-form4_153514193325209.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 474,407 Read SEC document |
| August 22, 2018 Filed Aug 23, 2018 20:45 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 22,967 | $1.02 | $23,472.27 |
DisclosureSEC source: 0000846913-18-000057 · wf-form4_153505708932645.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 472,374 Read SEC document |
| February 26, 2018 Filed Feb 28, 2018 21:54 UTC | FUEL TECH, INC. FTEK · Entity 1599 | GrantCommon Stock | 26,667 | $0.00 | $0.00 |
DisclosureSEC source: 0000846913-18-000002 · wf-form4_151985480325477.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 449,407 Read SEC document |
| December 15, 2017 Filed Dec 18, 2017 21:26 UTC | FUEL TECH, INC. FTEK · Entity 1599 | GrantRestricted Stock Units · Derivative | 100,000 | $0.00 | $0.00 |
DisclosureSEC source: 0000846913-17-000109 · wf-form4_151363239627658.xml · derivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 422,740 Underlying: Common Stock · 100,000 shares Expires not disclosed F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one stock of FTEK Common Stock. F2 · derivative.exercise_date: The Restricted Stock Units vest in two installments: (i) one half of the total RSUs awarded shall vest on the second anniversary after the transaction date shown above, and (ii) the final one half shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's 2017 RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date. F2 · derivative.expiration_date: The Restricted Stock Units vest in two installments: (i) one half of the total RSUs awarded shall vest on the second anniversary after the transaction date shown above, and (ii) the final one half shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's 2017 RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date. Read SEC document |
| September 15, 2017 Filed Sep 19, 2017 20:32 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 18,000 | $0.94 | $16,902.00 |
DisclosureSEC source: 0000846913-17-000079 · wf-form4_150585310583093.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 322,740 F1 · price: The price reported in Column 4 is a weighted average share price. The shares were purchased in multiple transactions at prices ranging from $0.91 to $0.95, inclusive. The reporting person undertakes to provide to any security holder of Fuel Tech, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Read SEC document |
| September 14, 2017 Filed Sep 18, 2017 20:20 UTC | FUEL TECH, INC. FTEK · Entity 1599 | PurchaseCommon Stock | 32,000 | $0.92 | $29,568.00 |
DisclosureSEC source: 0000846913-17-000077 · wf-form4_150576603581510.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 304,740 F1 · price: The price reported in Column 4 is a weighted average share price. The shares were purchased in multiple transactions at prices ranging from $0.86 to $0.95, inclusive. The reporting person undertakes to provide to any security holder of Fuel Tech, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Read SEC document |
| February 22, 2017 Filed Feb 23, 2017 22:47 UTC | FUEL TECH, INC. FTEK · Entity 1599 | GrantCommon Stock | 22,500 | $0.00 | $0.00 |
DisclosureSEC source: 0000846913-17-000016 · wf-form4_148789005948948.xml · nonDerivative · entry 1 ARNONE VINCENT J · CIK 0001272727 · Director · President & CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 272,740 Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.