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person · Reporting owner

Lewis Earl

Disclosed activity across 4 companies

Tapewire entity
34431
SEC CIK
0001230427

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
HARVARD BIOSCIENCE INCHBIO · Entity 7369DirectorJanuary 02, 2018January 04, 2018
TECOGEN INC.TGEN · Entity 6846DirectorJune 26, 2026July 01, 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.

HARVARD BIOSCIENCE INC

Report date January 02, 2018 · Filed January 04, 2018

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect477,050 Reported balance After 2018-01-02 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2018-01-02 · Grant · Acquired 9,700 · Balance 477,050

F1: Represents a deferred stock award of 9,700 restricted stock units which vest quarterly in equal installments on March 31, 2018, June 30, 2018, September 30, 2018 and December 31, 2018, and are subject to continued service as a non-employee director on the applicable vesting dates. These retainer awards are granted in lieu and satisfaction of the annual cash retainer compensation to be earned by the director for his service on the Issuer's Board of Directors and its Committees during 2018. The number of shares of common stock subject to such retainer award is equal to the amount of cash that would have been received had the retainers all been paid in cash, divided by the average daily closing market price of the Issuer's common stock for the month of November, rounded to the nearest 100 shares.

F2: Includes (a) a deferred stock award of 9,700 restricted stock units which vest quarterly in equal installments on March 31, 2018, June 30, 2018, September 30, 2018 and December 31, 2018; (b) a deferred stock award of 31,300 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 18, 2017, immediately prior to the commencement of such meeting, and (ii) May 18, 2018; and (c) 436,050 shares of common stock held by the Reporting Person.

Filing footnotes · ownership attribution and instrument terms

F1: Represents a deferred stock award of 9,700 restricted stock units which vest quarterly in equal installments on March 31, 2018, June 30, 2018, September 30, 2018 and December 31, 2018, and are subject to continued service as a non-employee director on the applicable vesting dates. These retainer awards are granted in lieu and satisfaction of the annual cash retainer compensation to be earned by the director for his service on the Issuer's Board of Directors and its Committees during 2018. The number of shares of common stock subject to such retainer award is equal to the amount of cash that would have been received had the retainers all been paid in cash, divided by the average daily closing market price of the Issuer's common stock for the month of November, rounded to the nearest 100 shares.

F2: Includes (a) a deferred stock award of 9,700 restricted stock units which vest quarterly in equal installments on March 31, 2018, June 30, 2018, September 30, 2018 and December 31, 2018; (b) a deferred stock award of 31,300 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 18, 2017, immediately prior to the commencement of such meeting, and (ii) May 18, 2018; and (c) 436,050 shares of common stock held by the Reporting Person.

TECOGEN INC.

Report date June 26, 2026 · Filed July 01, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $5.17 · Expires 2036-06-26Direct25,000 Reported balance After 2026-06-26 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-06-26 · Grant · Acquired 25,000 · Balance 25,000

F1: Vests 25% per year

Filing footnotes · ownership attribution and instrument terms

F1: Vests 25% per year

Past disclosures · reporting ended (2)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

FLIR SYSTEMS INC

Report date May 14, 2021 · Filed May 14, 2021

Section 16 reporting ended · disclosed 2021-05-14. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Ending reported balance After 2021-05-14 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2021-05-14 · Disposition to issuer · Disposed 599,383 · Balance 68,308

F1: Pursuant to the Agreement and Plan of Merger, dated as of January 4, 2021 (the "Merger Agreement"), by and among Teledyne Technologies Incorporated ("Teledyne"), Firework Merger Sub I, Inc. ("Merger Sub I"), Firework Merger Sub II, LLC, and FLIR Systems, Inc. ("FLIR"), Merger Sub I was merged with and into FLIR on May 14, 2021, with FLIR surviving, and immediately thereafter Merger Sub II was merged with and into FLIR, with Merger Sub II surviving. In connection therewith, each share of FLIR common stock outstanding immediately prior to the effective time of the merger of Merger Sub I with and into FLIR (the "Effective Time") was converted into the right to receive (i) $28.00 in cash and (ii) 0.0718 shares of Teledyne common stock, with any fractional shares to be paid in cash. The amount shown above represents the gross cash payment, but the actual payment will be less any applicable withholding for taxes.

Row 2 · 2021-05-14 · Disposition to issuer · Disposed 68,308 · Balance 0

F2: Pursuant to the Merger Agreement, each FLIR restricted stock unit, including performance-based restricted stock units that were earned but subject to service-based vesting ("FLIR RSU") outstanding immediately prior to the Effective Time automatically vested and was cancelled and converted into the right to receive $56.00 in cash in respect of each share of FLIR common stock subject to such FLIR RSU.

Common StockSEC Table I · non-derivativeIndirectChildren's Trust0 Reported balance After 2021-05-14 transaction · row 3 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 3 · 2021-05-14 · Disposition to issuer · Disposed 30,000 · Balance 0

F1: Pursuant to the Agreement and Plan of Merger, dated as of January 4, 2021 (the "Merger Agreement"), by and among Teledyne Technologies Incorporated ("Teledyne"), Firework Merger Sub I, Inc. ("Merger Sub I"), Firework Merger Sub II, LLC, and FLIR Systems, Inc. ("FLIR"), Merger Sub I was merged with and into FLIR on May 14, 2021, with FLIR surviving, and immediately thereafter Merger Sub II was merged with and into FLIR, with Merger Sub II surviving. In connection therewith, each share of FLIR common stock outstanding immediately prior to the effective time of the merger of Merger Sub I with and into FLIR (the "Effective Time") was converted into the right to receive (i) $28.00 in cash and (ii) 0.0718 shares of Teledyne common stock, with any fractional shares to be paid in cash. The amount shown above represents the gross cash payment, but the actual payment will be less any applicable withholding for taxes.

Common StockSEC Table I · non-derivativeIndirectSpouse0 Reported balance After 2021-05-14 transaction · row 4 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 4 · 2021-05-14 · Disposition to issuer · Disposed 176,832 · Balance 0

F1: Pursuant to the Agreement and Plan of Merger, dated as of January 4, 2021 (the "Merger Agreement"), by and among Teledyne Technologies Incorporated ("Teledyne"), Firework Merger Sub I, Inc. ("Merger Sub I"), Firework Merger Sub II, LLC, and FLIR Systems, Inc. ("FLIR"), Merger Sub I was merged with and into FLIR on May 14, 2021, with FLIR surviving, and immediately thereafter Merger Sub II was merged with and into FLIR, with Merger Sub II surviving. In connection therewith, each share of FLIR common stock outstanding immediately prior to the effective time of the merger of Merger Sub I with and into FLIR (the "Effective Time") was converted into the right to receive (i) $28.00 in cash and (ii) 0.0718 shares of Teledyne common stock, with any fractional shares to be paid in cash. The amount shown above represents the gross cash payment, but the actual payment will be less any applicable withholding for taxes.

Filing footnotes · ownership attribution and instrument terms

F1: Pursuant to the Agreement and Plan of Merger, dated as of January 4, 2021 (the "Merger Agreement"), by and among Teledyne Technologies Incorporated ("Teledyne"), Firework Merger Sub I, Inc. ("Merger Sub I"), Firework Merger Sub II, LLC, and FLIR Systems, Inc. ("FLIR"), Merger Sub I was merged with and into FLIR on May 14, 2021, with FLIR surviving, and immediately thereafter Merger Sub II was merged with and into FLIR, with Merger Sub II surviving. In connection therewith, each share of FLIR common stock outstanding immediately prior to the effective time of the merger of Merger Sub I with and into FLIR (the "Effective Time") was converted into the right to receive (i) $28.00 in cash and (ii) 0.0718 shares of Teledyne common stock, with any fractional shares to be paid in cash. The amount shown above represents the gross cash payment, but the actual payment will be less any applicable withholding for taxes.

F2: Pursuant to the Merger Agreement, each FLIR restricted stock unit, including performance-based restricted stock units that were earned but subject to service-based vesting ("FLIR RSU") outstanding immediately prior to the Effective Time automatically vested and was cancelled and converted into the right to receive $56.00 in cash in respect of each share of FLIR common stock subject to such FLIR RSU.

NxStage Medical, Inc.

Report date February 21, 2019 · Filed February 25, 2019

Section 16 reporting ended · disclosed 2019-02-25. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2019-02-21 transaction · row 1
1 source row

Row 1 · 2019-02-21 · Disposition to issuer · Disposed 100,232 · Balance 0

F1: Disposed of under Merger Agreement with Fresenius Medical Care Holdings, Inc. in which all outstanding shares of Issuer's Common Stock were converted into the right to receive $30 per share in cash.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $13.16 · Expires 2024-05-21Direct0 Reported balance After 2019-02-21 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2019-02-21 · Disposition to issuer · Disposed 23,394 · Balance 0

F2: This option was canceled in the Merger in exchange for an amount in cash equal to the product of the total number of shares subject to the option multiplied by the excess of the Merger Consideration of $30 per share over the option exercise price.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $16.81 · Expires 2025-05-20Direct0 Reported balance After 2019-02-21 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2019-02-21 · Disposition to issuer · Disposed 19,724 · Balance 0

F2: This option was canceled in the Merger in exchange for an amount in cash equal to the product of the total number of shares subject to the option multiplied by the excess of the Merger Consideration of $30 per share over the option exercise price.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $18.32 · Expires 2023-05-25Direct0 Reported balance After 2019-02-21 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2019-02-21 · Disposition to issuer · Disposed 15,854 · Balance 0

F2: This option was canceled in the Merger in exchange for an amount in cash equal to the product of the total number of shares subject to the option multiplied by the excess of the Merger Consideration of $30 per share over the option exercise price.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $22.78 · Expires 2024-05-24Direct0 Reported balance After 2019-02-21 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2019-02-21 · Disposition to issuer · Disposed 15,643 · Balance 0

F2: This option was canceled in the Merger in exchange for an amount in cash equal to the product of the total number of shares subject to the option multiplied by the excess of the Merger Consideration of $30 per share over the option exercise price.

Filing footnotes · ownership attribution and instrument terms

F1: Disposed of under Merger Agreement with Fresenius Medical Care Holdings, Inc. in which all outstanding shares of Issuer's Common Stock were converted into the right to receive $30 per share in cash.

F2: This option was canceled in the Merger in exchange for an amount in cash equal to the product of the total number of shares subject to the option multiplied by the excess of the Merger Consideration of $30 per share over the option exercise price.

Transaction history

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Purchases/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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
June 26, 2026 Filed Jul 1, 2026 00:32 UTC TECOGEN INC. TGEN · Entity 6846 GrantStock Option (Right to Buy) · Derivative 25,000 $5.17 Strike: $5.17 $129,250.00
Disclosure

SEC source: 0001537435-26-000044 · wk-form4_1782865962.xml · derivative · entry 1

Lewis Earl · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires 2036-06-26

F1 · derivative.exercise_date: Vests 25% per year

Read SEC document
March 27, 2026 Filed Mar 27, 2026 18:44 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 5,000 $2.52 $12,596.00
Disclosure

SEC source: 0001230427-26-000002 · wk-form4_1774637053.xml · nonDerivative · entry 1

Lewis Earl · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,011,006

F1 · shares: Shares acquired by trust

Read SEC document
March 26, 2026 Filed Mar 27, 2026 16:10 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 5,000 $2.88 $14,408.50
Disclosure

SEC source: 0001537435-26-000024 · wk-form4_1774627831.xml · nonDerivative · entry 1

Lewis Earl · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,006,006

F1 · shares: Shares acquired by a trust

Read SEC document
July 24, 2025 Filed Jul 28, 2025 14:57 UTC TECOGEN INC. TGEN · Entity 6846 GrantStock Option (Right to Buy) · Derivative 25,000 $8.35 Strike: $8.35 $208,750.00
Disclosure

SEC source: 0001537435-25-000115 · wk-form4_1753714654.xml · derivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,250

Underlying: Common Stock · 25,000 shares

Expires 2035-07-24

F1 · derivative.exercise_date: Vests 25% per year

Read SEC document
May 06, 2025 Filed May 7, 2025 13:26 UTC TECOGEN INC. TGEN · Entity 6846 OtherCommon Stock 6,250 $1.10 $6,875.00
Disclosure

SEC source: 0001537435-25-000031 · wk-form4_1746624379.xml · nonDerivative · entry 3

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,001,006

Read SEC document
May 06, 2025 Filed May 7, 2025 13:26 UTC TECOGEN INC. TGEN · Entity 6846 OtherCommon Stock 12,500 $1.20 $15,000.00
Disclosure

SEC source: 0001537435-25-000031 · wk-form4_1746624379.xml · nonDerivative · entry 2

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 994,756

Read SEC document
May 06, 2025 Filed May 7, 2025 13:26 UTC TECOGEN INC. TGEN · Entity 6846 OtherCommon Stock 15,000 $1.75 $26,250.00
Disclosure

SEC source: 0001537435-25-000031 · wk-form4_1746624379.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 982,256

Read SEC document
May 01, 2025 Filed May 5, 2025 13:37 UTC TECOGEN INC. TGEN · Entity 6846 OtherCommon Stock 240,256 $2.14 $514,147.84
Disclosure

SEC source: 0001537435-25-000027 · wk-form4_1746452229.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 967,256

F1 · kind: Shares issued as payment of principal and accrued interest on Tecogen Inc. promissory note dated September 18, 2024 in favor of Mr. Lewis.

Read SEC document
November 22, 2024 Filed Dec 6, 2024 14:14 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 100,000 $0.71 $71,000.00
Disclosure

SEC source: 0001537435-24-000126 · wk-form4_1733494467.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 737,000

F1 · shares: Exercise under Stock Option Agreement dated 7/9/2020

Read SEC document
November 22, 2024 Filed Mar 25, 2025 21:12 UTC Amendment TECOGEN INC. TGEN · Entity 6846 Exercise / conversionStock Option (Right to Buy) · Derivative 100,000 $0.71 Strike: $0.71 $71,000.00
Disclosure

SEC source: 0001628280-25-014780 · wk-form4a_1742937119.xml · derivative · entry 2

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Common Stock · 100,000 shares

Expires 2030-07-09

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.

Read SEC document
November 22, 2024 Filed Mar 25, 2025 21:12 UTC Amendment TECOGEN INC. TGEN · Entity 6846 OtherCommon Stock 100,000 $0.71 $71,000.00
Disclosure

SEC source: 0001628280-25-014780 · wk-form4a_1742937119.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 727,000

F1 · price: Acquisition by exercise of the right to purchase 100,000 shares for $0.71 per share pursuant to Stock Option Agreement dated 7/9/2020.

F2 · balance_after: Following the purchase of 100,000 shares on 11/22/2024, Mr. Lewis owned a total of 727,000 shares, and continued to hold options to purchase 100,000 additional shares at various prices.

Read SEC document
July 15, 2024 Filed Jul 15, 2024 16:09 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $0.68 $6,800.00
Disclosure

SEC source: 0001537435-24-000092 · wk-form4_1721059757.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 625,000

Read SEC document
July 15, 2024 Filed Jul 17, 2024 20:38 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $0.68 $6,800.00
Disclosure

SEC source: 0001537435-24-000094 · wk-form4_1721248690.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · purchase by wife

Disclosed balance after: 635,000

Read SEC document
July 15, 2024 Filed Mar 25, 2025 21:09 UTC Amendment TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $0.68 $6,800.00
Disclosure

SEC source: 0001628280-25-014773 · wk-form4a_1742936974.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 625,000

F1 · balance_after: The Form 4 filed on 7/17/2024 regarding the purchase of 10,000 shares on 7/15/2024 was duplicative of the Form 4 filed on 7/15/2024 regarding the purchase of 10,000 shares on 7/15/2024, resulting in the overstatement of the share balance; the balance of shares owned on 7/15/2024 was 625,00 shares rather than 635,000 shares

Read SEC document
June 06, 2024 Filed Jun 18, 2024 19:48 UTC TECOGEN INC. TGEN · Entity 6846 GrantStock Options (Right to Buy) · Derivative 25,000 $0.77 Strike: $0.77 $19,250.00
Disclosure

SEC source: 0001537435-24-000084 · wk-form4_1718740096.xml · derivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Common Stock · 25,000 shares

Expires 2034-06-06

F1 · derivative.exercise_date: Vests 25% per year

Read SEC document
May 01, 2024 Filed May 3, 2024 20:08 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 5,000 $0.75 $3,750.00
Disclosure

SEC source: 0001537435-24-000055 · wk-form4_1714766908.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 615,000

Read SEC document
April 24, 2024 Filed Apr 24, 2024 19:37 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $0.68 $6,800.00
Disclosure

SEC source: 0001537435-24-000050 · wk-form4_1713987434.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 610,000

Read SEC document
January 24, 2024 Filed Jan 25, 2024 14:29 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 9,152 $0.78 $7,138.56
Disclosure

SEC source: 0001537435-24-000012 · wk-form4_1706192955.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 560,835

Read SEC document
January 23, 2024 Filed Jan 23, 2024 22:54 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $0.68 $6,800.00
Disclosure

SEC source: 0001537435-24-000010 · wk-form4_1706050436.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 551,683

Read SEC document
October 18, 2023 Filed Oct 18, 2023 20:28 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 25,000 $0.91 $22,750.00
Disclosure

SEC source: 0001537435-23-000139 · wk-form4_1697660905.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 541,683

Read SEC document
October 09, 2023 Filed Oct 11, 2023 22:58 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 2,000 $0.80 $1,600.00
Disclosure

SEC source: 0001537435-23-000133 · wk-form4_1697065084.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 516,683

Read SEC document
October 09, 2023 Filed Apr 16, 2024 21:28 UTC TECOGEN INC. TGEN · Entity 6846 OtherCommon Stock 2,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 11

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 600,000

F4 · kind: purchase of 2,000 shares reported did not occur

F4 · price: purchase of 2,000 shares reported did not occur

Read SEC document
October 09, 2023 Filed Dec 6, 2024 14:12 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 2,000 $0.80 $1,600.00
Disclosure

SEC source: 0001537435-24-000124 · wk-form4_1733494335.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 637,000

Read SEC document
October 09, 2023 Filed Mar 25, 2025 21:11 UTC Amendment TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 2,000 $0.80 $1,600.00
Disclosure

SEC source: 0001628280-25-014778 · wk-form4a_1742937063.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 627,000

F1 · balance_after: The share balance on the Form 4 filed 12/6/2024 following the reported purchase of 2,000 shares should have been 627,000 shares rather than 637,000 shares because the Form 4 filed 7/17/2024 was duplicative, resulting in a 10,000 share overstatement of the share balance.

Read SEC document
October 06, 2023 Filed Apr 16, 2024 21:28 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 1,000 $0.80 $800.00
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 10

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 602,000

Read SEC document
October 06, 2023 Filed Apr 16, 2024 21:28 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 132 $0.79 $104.28
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 9

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 601,000

Read SEC document
October 02, 2023 Filed Apr 16, 2024 21:28 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 5,000 $0.87 $4,350.00
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 8

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 600,868

Read SEC document
September 26, 2023 Filed Apr 16, 2024 21:28 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 1,000 $0.90 $900.00
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 7

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 595,868

Read SEC document
September 14, 2023 Filed Apr 16, 2024 21:28 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 17,216 $0.93 $16,010.88
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 6

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 594,868

Read SEC document
September 08, 2023 Filed Sep 11, 2023 12:54 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $0.95 $9,500.00
Disclosure

SEC source: 0001537435-23-000112 · wf-form4_169443687535089.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 514,683

Read SEC document
September 05, 2023 Filed Sep 6, 2023 14:13 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $1.00 $10,000.00
Disclosure

SEC source: 0001537435-23-000108 · wf-form4_169400961175518.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 504,683

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August 14, 2023 Filed Aug 17, 2023 15:32 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 1,500 $1.00 $1,500.00
Disclosure

SEC source: 0001537435-23-000098 · wf-form4_169228632953786.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 494,683

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June 13, 2023 Filed Jun 15, 2023 19:42 UTC TECOGEN INC. TGEN · Entity 6846 GrantStock Option (Right to Buy) · Derivative 25,000 $1.10 Strike: $1.10 $27,500.00
Disclosure

SEC source: 0001537435-23-000073 · wf-form4_168685814839885.xml · derivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,000

Underlying: Common Stock · 25,000 shares

Expires 2033-06-13

F1 · derivative.exercise_date: Vests 25% per year

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May 15, 2023 Filed May 16, 2023 21:59 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $0.96 $9,600.00
Disclosure

SEC source: 0001537435-23-000045 · wf-form4_168427436806895.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 493,183

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March 29, 2023 Filed Mar 30, 2023 17:41 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $1.18 $11,800.00
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 8

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 483,183

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March 29, 2023 Filed Mar 30, 2023 17:41 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $1.17 $11,700.00
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 7

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 473,183

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March 28, 2023 Filed Mar 30, 2023 17:41 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 3,200 $1.02 $3,264.00
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 6

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 463,183

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March 28, 2023 Filed Mar 30, 2023 17:41 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 700 $1.02 $710.50
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 5

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 459,983

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March 28, 2023 Filed Mar 30, 2023 17:41 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 2,100 $1.03 $2,163.00
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 4

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 459,283

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March 27, 2023 Filed Mar 30, 2023 17:41 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 806 $0.98 $793.51
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 3

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 457,183

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March 24, 2023 Filed Mar 30, 2023 17:41 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 2,694 $0.93 $2,505.42
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 2

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 456,377

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March 24, 2023 Filed Mar 30, 2023 17:41 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 5,500 $0.92 $5,060.00
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 453,683

Read SEC document
March 22, 2023 Filed Mar 23, 2023 15:50 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 5,000 $0.87 $4,350.00
Disclosure

SEC source: 0001537435-23-000020 · wf-form4_167958659226917.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 448,183

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March 20, 2023 Filed Mar 21, 2023 20:10 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 5,000 $0.87 $4,350.00
Disclosure

SEC source: 0001537435-23-000013 · wf-form4_167942943376724.xml · nonDerivative · entry 2

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 443,183

Read SEC document
March 20, 2023 Filed Mar 21, 2023 20:10 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 10,000 $0.90 $9,000.00
Disclosure

SEC source: 0001537435-23-000013 · wf-form4_167942943376724.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 438,183

Read SEC document
November 29, 2022 Filed Apr 16, 2024 21:28 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 5,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 5

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 577,652

F3 · price: ten purchases at $1.43 to $1.57 per share

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November 23, 2022 Filed Apr 16, 2024 21:28 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 630 $1.34 $844.20
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 4

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 572,652

Read SEC document
November 22, 2022 Filed Apr 16, 2024 21:28 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 4,987 $1.36 $6,782.32
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 3

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 572,022

Read SEC document
November 22, 2022 Filed Apr 16, 2024 21:28 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 1,200 Not disclosed Not disclosed
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 2

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 567,035

F2 · price: Six purchases at $1.24 to $1.29 per share

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September 29, 2022 Filed Sep 29, 2022 20:55 UTC TECOGEN INC. TGEN · Entity 6846 PurchaseCommon Stock 5,000 $0.97 $4,850.00
Disclosure

SEC source: 0001537435-22-000117 · wf-form4_166448493354176.xml · nonDerivative · entry 2

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 428,183

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.