Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Cartesian, Inc.CRTN · Entity 166152 | Director | May 11, 2018 | May 15, 2018 |
| FIREFLY NEUROSCIENCE, INC.WAVD · Entity 7759 | Director | November 21, 2022 | November 23, 2022 |
| NATURAL GAS SERVICES GROUP INCNGS · Entity 1461 | Director | September 02, 2026 | September 03, 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.
Cartesian, Inc.
Report date May 11, 2018 · Filed May 15, 2018
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 12,500 |
Reported balance
After 2018-05-11 transaction · row 1
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 1 · 2018-05-11 · Other · Disposed 25,000 · Balance 12,500 F1: The disposition of 25,000 shares reported on this Form 4 was affected pursuant to a Tender Offer dated April 10, 2018, which expired on May 11, 2018. F2: Consists of shares of restricted stock which vest on July 25, 2018; previously reported on Form 4, filed on July 31, 2017. |
Filing footnotes · ownership attribution and instrument terms
F1: The disposition of 25,000 shares reported on this Form 4 was affected pursuant to a Tender Offer dated April 10, 2018, which expired on May 11, 2018.
F2: Consists of shares of restricted stock which vest on July 25, 2018; previously reported on Form 4, filed on July 31, 2017.
FIREFLY NEUROSCIENCE, INC.
Report date November 21, 2022 · Filed November 23, 2022
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Options (Right-to-Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $0.86 · Expires 2027-10-24 | Direct | 105,000 |
Reported balance
After 2022-11-21 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2022-11-21 · Grant · Acquired 10,000 · Balance 105,000 F1: Granted pursuant to and in accordance with the WaveDancer 2021 Stock Incentive Plan. F2: The options become exercisable as to 5,000 Options on October 24, 2023, and 5,000 Options on October 24, 2024. F3: Includes Options for 80,000 shares and Warrants for 25,000 shares of common stock. |
Filing footnotes · ownership attribution and instrument terms
F1: Granted pursuant to and in accordance with the WaveDancer 2021 Stock Incentive Plan.
F2: The options become exercisable as to 5,000 Options on October 24, 2023, and 5,000 Options on October 24, 2024.
F3: Includes Options for 80,000 shares and Warrants for 25,000 shares of common stock.
NATURAL GAS SERVICES GROUP INC
Report date September 02, 2026 · Filed September 03, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | IndirectRabbi Trust | 13,812 |
Reported balance
After 2026-09-02 transaction · row 1
Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source rowRow 1 · 2026-09-02 · Grant · Acquired 59 · Balance 13,812 F1: Shares acquired through reinvestment of cash dividends pursuant to the terms of the deferred compensation plan. |
| Common StockSEC Table I · non-derivative | Direct | 5,965 |
Reported balance
Holding disclosure · report date 2026-09-02 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 5,965 |
| Restricted Stock UnitsSEC Table II · derivative / convertible security | Direct | 4,574 |
Reported balance
Holding disclosure · report date 2026-09-02 · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · Balance 4,574 F2: Not applicable. Each Restricted Stock Unit represents the right to receive one share of the Issuer's common stock upon vesting. F3: Not Applicable. The Restricted Stock Units vest on the first anniversary of the grant date, subject to accelerated vesting under certain circumstances. |
Filing footnotes · ownership attribution and instrument terms
F1: Shares acquired through reinvestment of cash dividends pursuant to the terms of the deferred compensation plan.
F2: Not applicable. Each Restricted Stock Unit represents the right to receive one share of the Issuer's common stock upon vesting.
F3: Not Applicable. The Restricted Stock Units vest on the first anniversary of the grant date, subject to accelerated vesting under certain circumstances.
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 |
|---|---|---|---|---|---|---|
| September 02, 2026 Filed Sep 3, 2026 19:15 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 59 | $35.22 | $2,077.98 |
DisclosureSEC source: 0001199696-26-000007 · primary_doc.xml · nonDerivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · Rabbi Trust Disclosed balance after: 13,812 F1 · shares: Shares acquired through reinvestment of cash dividends pursuant to the terms of the deferred compensation plan. Read SEC document |
| June 10, 2026 Filed Jun 11, 2026 14:27 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantRestricted Stock Units · Derivative | 4,574 | $0.00 | $0.00 |
DisclosureSEC source: 0001199696-26-000004 · primary_doc.xml · derivative · entry 3 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,574 Underlying: Common Stock · 4,574 shares Expires not disclosed F1 · derivative.exercise_price: Not applicable. Each Restricted Stock Unit represents the right to receive one share of the Issuer's common stock upon vesting. F2 · derivative.exercise_date: Not Applicable. The acquisition reflects an award of Restricted Stock Units pursuant to the Company's 2019 Equity Incentive Plan. The award vests on the first anniversary of the grant date, subject to accelerated vesting under certain circumstances. F2 · derivative.expiration_date: Not Applicable. The acquisition reflects an award of Restricted Stock Units pursuant to the Company's 2019 Equity Incentive Plan. The award vests on the first anniversary of the grant date, subject to accelerated vesting under certain circumstances. Read SEC document |
| June 08, 2026 Filed Jun 9, 2026 14:41 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 49 | $42.42 | $2,078.58 |
DisclosureSEC source: 0001199696-26-000003 · primary_doc.xml · nonDerivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · Rabbi Trust Disclosed balance after: 17,763 F1 · shares: Shares acquired through reinvestment of cash dividends pursuant to the terms of the deferred compensation plan. Read SEC document |
| June 05, 2026 Filed Jun 8, 2026 19:00 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | Exercise / conversionRestricted Stock Units · Derivative | 4,456 | $0.00 | $0.00 |
DisclosureSEC source: 0001199696-26-000002 · primary_doc.xml · derivative · entry 3 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 4,456 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: Not applicable. Each RSU represented the right to receive one share of the Issuer's common stock upon vesting (or upon election by the reporting person, up to 50% of the RSUs in cash). F2 · derivative.exercise_date: Not applicable. Each RSU represented the right to receive one share of the Issuer's common stock upon vesting (or upon election by the reporting person, up to 50% of the RSUs in cash). F2 · derivative.expiration_date: Not applicable. Each RSU represented the right to receive one share of the Issuer's common stock upon vesting (or upon election by the reporting person, up to 50% of the RSUs in cash). Read SEC document |
| June 05, 2026 Filed Jun 8, 2026 19:00 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 4,010 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001199696-26-000002 · primary_doc.xml · nonDerivative · entry 2 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · Rabbi Trust Disclosed balance after: 17,714 F1 · price: Not applicable. The reported shares were acquired in connection with the vesting of a restricted stock unit (RSU) award. Read SEC document |
| June 05, 2026 Filed Jun 8, 2026 19:00 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 446 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001199696-26-000002 · primary_doc.xml · nonDerivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,955 F1 · price: Not applicable. The reported shares were acquired in connection with the vesting of a restricted stock unit (RSU) award. Read SEC document |
| March 04, 2026 Filed Mar 6, 2026 16:32 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 40 | $37.52 | $1,500.80 |
DisclosureSEC source: 0001199696-26-000001 · primary_doc.xml · nonDerivative · entry 2 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · Rabbi Trust Disclosed balance after: 13,704 F1 · shares: Shares acquired through reinvestment of cash dividends pursuant to the terms of the deferred compensation plan. Read SEC document |
| December 03, 2025 Filed Dec 5, 2025 19:11 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 49 | $30.50 | $1,494.50 |
DisclosureSEC source: 0001199696-25-000004 · primary_doc.xml · nonDerivative · entry 2 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · Rabbi Trust Disclosed balance after: 13,664 F1 · shares: Shares acquired through reinvestment of cash dividend pursuant to the terms of the deferred compensation plan. Read SEC document |
| August 08, 2025 Filed Aug 25, 2025 18:25 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 34 | $24.78 | $842.52 |
DisclosureSEC source: 0001084991-25-000120 · primary_doc.xml · nonDerivative · entry 2 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · Rabbi Trust Disclosed balance after: 13,615 F1 · shares: Shares acquired through reinvestment of cash dividend pursuant to the terms of the deferred compensation plan. Read SEC document |
| June 13, 2025 Filed Jun 16, 2025 21:16 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | Exercise / conversionRestricted Stock Units · Derivative | 5,620 | $0.00 | $0.00 |
DisclosureSEC source: 0001084991-25-000093 · primary_doc.xml · derivative · entry 3 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 5,620 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: Not Applicable. Each RSU represented the right to receive one share of the Issuer's common stock upon vesting (or upon election by the reporting person, up to 50% of the RSUs in cash.) F2 · derivative.exercise_date: Not Applicable. Each RSU represented the right to receive one share of the Issuer's common stock upon vesting (or upon election by the reporting person, up to 50% of the RSUs in cash.) F2 · derivative.expiration_date: Not Applicable. Each RSU represented the right to receive one share of the Issuer's common stock upon vesting (or upon election by the reporting person, up to 50% of the RSUs in cash.) Read SEC document |
| June 13, 2025 Filed Jun 16, 2025 21:16 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 5,058 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001084991-25-000093 · primary_doc.xml · nonDerivative · entry 2 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · Rabbi Trust Disclosed balance after: 13,581 F1 · price: Not Applicable. The reported shares were acquired in connection with the vesting of a restricted stock unit award. Read SEC document |
| June 13, 2025 Filed Jun 16, 2025 21:16 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 562 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001084991-25-000093 · primary_doc.xml · nonDerivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,509 F1 · price: Not Applicable. The reported shares were acquired in connection with the vesting of a restricted stock unit award. Read SEC document |
| June 05, 2025 Filed Jun 9, 2025 18:27 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantRestricted Stock Units · Derivative | 4,456 | $0.00 | $0.00 |
DisclosureSEC source: 0001084991-25-000083 · primary_doc.xml · derivative · entry 3 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,456 Underlying: Common Stock · 4,456 shares Expires not disclosed F1 · derivative.exercise_price: Not applicable. Each Restricted Stock Unit represents the right to receive one share of the Issuer's common stock upon vesting. F2 · derivative.exercise_date: Not Applicable. The acquisition reflects an award of Restricted Stock Units pursuant to the Company's 2019 Equity Incentive Plan. The award vests on the first anniversary of the grant date, subject to accelerated vesting under certain circumstances. F2 · derivative.expiration_date: Not Applicable. The acquisition reflects an award of Restricted Stock Units pursuant to the Company's 2019 Equity Incentive Plan. The award vests on the first anniversary of the grant date, subject to accelerated vesting under certain circumstances. Read SEC document |
| June 13, 2024 Filed Jun 17, 2024 22:09 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantRestricted Stock Units · Derivative | 5,620 | $0.00 | $0.00 |
DisclosureSEC source: 0001084991-24-000069 · primary_doc.xml · derivative · entry 3 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,620 Underlying: Common Stock · 5,620 shares Expires not disclosed F1 · derivative.exercise_price: Not applicable. Each RSU represents the right to receive one share of the Issuer's common stock upon vesting. F1 · derivative.exercise_date: Not applicable. Each RSU represents the right to receive one share of the Issuer's common stock upon vesting. F1 · derivative.expiration_date: Not applicable. Each RSU represents the right to receive one share of the Issuer's common stock upon vesting. Read SEC document |
| May 09, 2024 Filed May 13, 2024 19:09 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | Exercise / conversionRestricted Stock Units · Derivative | 9,470 | $0.00 | $0.00 |
DisclosureSEC source: 0001084991-24-000037 · primary_doc.xml · derivative · entry 3 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 9,470 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: Not applicable. Each RSU represented the right to receive one share of the Issuer's common stock upon vesting, which occurred on May 9, 2024. F3 · derivative.exercise_date: Not applicable. Each RSU represented the right to receive one share of the Issuer's common stock upon vesting, which occurred on May 9, 2024. F3 · derivative.expiration_date: Not applicable. Each RSU represented the right to receive one share of the Issuer's common stock upon vesting, which occurred on May 9, 2024. Read SEC document |
| May 09, 2024 Filed May 13, 2024 19:09 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 8,523 | $0.00 | $0.00 |
DisclosureSEC source: 0001084991-24-000037 · primary_doc.xml · nonDerivative · entry 2 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · Rabbi Trust Disclosed balance after: 8,523 F2 · price: The shares were issued in connection with the vesting of Restricted Stock Units on a one-for-one basis and are held in a Rabbi Trust under the Company's Non-Qualified Deferred Compensation Plan. Read SEC document |
| May 09, 2024 Filed May 13, 2024 19:09 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantCommon Stock | 947 | $0.00 | $0.00 |
DisclosureSEC source: 0001084991-24-000037 · primary_doc.xml · nonDerivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 947 F1 · price: The shares were issued in connection with the vesting of Restricted Stock Units on a one-for-one basis. Read SEC document |
| May 09, 2023 Filed May 11, 2023 20:23 UTC | NATURAL GAS SERVICES GROUP INC NGS · Entity 1461 | GrantRestricted Stock Unit · Derivative | 9,470 | $0.00 | $0.00 |
DisclosureSEC source: 0001084991-23-000052 · primary_doc.xml · derivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 9,470 Underlying: Common Stock · 9,470 shares Expires not disclosed F1 · derivative.exercise_price: Not applicable. Each RSU represents the right to receive one share of the Issuer's common stock upon vesting. F1 · derivative.exercise_date: Not applicable. Each RSU represents the right to receive one share of the Issuer's common stock upon vesting. F1 · derivative.expiration_date: Not applicable. Each RSU represents the right to receive one share of the Issuer's common stock upon vesting. Read SEC document |
| November 21, 2022 Filed Nov 23, 2022 19:53 UTC | FIREFLY NEUROSCIENCE, INC. WAVD · Entity 7759 | GrantOptions (Right-to-Buy) · Derivative | 10,000 | $0.00 Strike: $0.86 | $0.00 |
DisclosureSEC source: 0001437749-22-027994 · rdgdoc.xml · derivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 105,000 Underlying: Common Stock · 10,000 shares Expires 2027-10-24 F1 · kind: Granted pursuant to and in accordance with the WaveDancer 2021 Stock Incentive Plan. F2 · derivative.exercise_date: The options become exercisable as to 5,000 Options on October 24, 2023, and 5,000 Options on October 24, 2024. F3 · balance_after: Includes Options for 80,000 shares and Warrants for 25,000 shares of common stock. Read SEC document |
| December 30, 2021 Filed Jan 3, 2022 20:07 UTC | FIREFLY NEUROSCIENCE, INC. WAVD · Entity 7759 | GrantOptions (right-to-buy) · Derivative | 50,000 | $0.00 Strike: $4.89 | $0.00 |
DisclosureSEC source: 0001437749-22-000147 · rdgdoc.xml · derivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 70,000 Underlying: Common Stock · 50,000 shares Expires 2026-12-30 F1 · kind: Granted pursuant to and in accordance with the WaveDancer 2021 Stock Incentive Plan. F2 · derivative.exercise_date: The options become exercisable as to 25,000 Options on December 30, 2022, and 25,000 Options on December 30, 2023. Read SEC document |
| August 26, 2021 Filed Aug 30, 2021 18:52 UTC | FIREFLY NEUROSCIENCE, INC. IAIC · Entity 7759 | GrantWarrants (right-to-buy) · Derivative | 25,000 | $2.70 Strike: $3.00 | $67,500.00 |
DisclosureSEC source: 0001437749-21-021150 · rdgdoc.xml · derivative · entry 2 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 45,000 Underlying: Common Stock · 25,000 shares Expires 2026-08-31 Read SEC document |
| August 26, 2021 Filed Aug 30, 2021 18:52 UTC | FIREFLY NEUROSCIENCE, INC. IAIC · Entity 7759 | GrantCommon Stock | 25,000 | $2.00 | $50,000.00 |
DisclosureSEC source: 0001437749-21-021150 · rdgdoc.xml · nonDerivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 25,000 F1 · price: Mr. Tringali purchased 25,000 units in a private placement at $2.00 per unit. One unit equals 1 share common stock and a warrant to purchase 1 additional share common stock at $3.00 per share, expiring August 31, 2026. Read SEC document |
| May 11, 2018 Filed May 15, 2018 17:04 UTC | Cartesian, Inc. CRTN · Entity 166152 | OtherCommon Stock | 25,000 | $0.40 | $10,000.00 |
DisclosureSEC source: 0001140361-18-024024 · form4.xml · nonDerivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,500 F1 · kind: The disposition of 25,000 shares reported on this Form 4 was affected pursuant to a Tender Offer dated April 10, 2018, which expired on May 11, 2018. F2 · balance_after: Consists of shares of restricted stock which vest on July 25, 2018; previously reported on Form 4, filed on July 31, 2017. Read SEC document |
| July 25, 2017 Filed Jul 31, 2017 17:16 UTC | Cartesian, Inc. CRTN · Entity 166152 | GrantCommon Stock | 12,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001014108-17-000124 · primary_doc.xml · nonDerivative · entry 1 TRINGALI DONALD J · CIK 0001199696 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 37,500 F1 · kind: Restricted stock award which will vest on July 25, 2018. 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.