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Nasdaq · USD

IPGP

IPG PHOTONICS CORP

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Tapewire entity
1767
SEC CIK
0001111928
Parsed reports
534

Last 12 months

Inside the activity.

2 purchase rows · 131 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 2025017
Dec 2025014
Jan 2026019
Feb 2026038
Mar 202601
Apr 202600
May 202603
Jun 2026016
Jul 2026012
Aug 202625
Sep 202603
Oct 202603

Latest available

Insider transactions

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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 dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
December 31, 2016 Filed Jan 5, 2017 21:11 UTC
Mammen Timothy PVSVP, Chief Financial Officer
Tax withholdingCommon Stock 242 $0.00 $0.00
Disclosure

SEC source: 0001111928-17-000009 · wf-form4_148365067703283.xml · nonDerivative · entry 1

Mammen Timothy PV · CIK 0001378546 · SVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,057

Read SEC document
December 31, 2016 Filed Jan 5, 2017 21:07 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
Tax withholdingCommon Stock 227 $0.00 $0.00
Disclosure

SEC source: 0001111928-17-000006 · wf-form4_148365042743566.xml · nonDerivative · entry 1

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,716

Read SEC document
December 31, 2016 Filed Jan 5, 2017 21:06 UTC
Ovtchinnikov AlexanderSVP, Components · 10% owner
Tax withholdingCommon Stock 227 $0.00 $0.00
Disclosure

SEC source: 0001111928-17-000005 · wf-form4_148365037375611.xml · nonDerivative · entry 1

Ovtchinnikov Alexander · CIK 0001378547 · SVP, Components · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,047

Read SEC document
December 31, 2016 Filed Oct 31, 2018 20:24 UTC
Burgomaster Thomas JChief Accounting Officer
Tax withholdingCommon Stock 90 $98.71 $8,883.90
Disclosure

SEC source: 0001111928-18-000131 · wf-form4_154101746621901.xml · nonDerivative · entry 11

Burgomaster Thomas J · CIK 0001757298 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,631

F3 · balance_after: Includes 156 shares acquired under the IPG employee stock purchase plan on December 31, 2016.

Read SEC document
December 30, 2016 Filed Jan 4, 2017 22:19 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Exercise / conversionDirector Stock Option (right to buy) · Derivative 111 $58.65 Strike: $58.65 $6,510.15
Disclosure

SEC source: 0001111928-17-000002 · wf-form4_148356834711030.xml · derivative · entry 5

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,389

Underlying: Common Stock · 111 shares

Expires 2022-02-13

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.

F4 · derivative.exercise_date: Options vest in four quarterly installments commencing on March 31, 2016.

Read SEC document
December 30, 2016 Filed Jan 4, 2017 22:19 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Exercise / conversionDirector Stock Option (right to buy) · Derivative 1,435 $53.76 Strike: $53.76 $77,145.60
Disclosure

SEC source: 0001111928-17-000002 · wf-form4_148356834711030.xml · derivative · entry 4

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,565

Underlying: Common Stock · 1,435 shares

Expires 2021-02-28

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_date: Options vest in four quarterly installments commencing on March 31, 2015.

Read SEC document
December 30, 2016 Filed Jan 4, 2017 22:19 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Disposition to issuerCommon Stock 1,546 $99.06 $153,146.76
Disclosure

SEC source: 0001111928-17-000002 · wf-form4_148356834711030.xml · nonDerivative · entry 3

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,871

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 30, 2016.

F2 · price: The reported transaction involves sales transactions from $98.76 to $100.40 per share. The weighted average price per share was $99.06. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares sold at each separate price.

Read SEC document
December 30, 2016 Filed Jan 4, 2017 22:19 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Exercise / conversionCommon Stock 111 $58.65 $6,510.15
Disclosure

SEC source: 0001111928-17-000002 · wf-form4_148356834711030.xml · nonDerivative · entry 2

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,417

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
December 30, 2016 Filed Jan 4, 2017 22:19 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Exercise / conversionCommon Stock 1,435 $53.76 $77,145.60
Disclosure

SEC source: 0001111928-17-000002 · wf-form4_148356834711030.xml · nonDerivative · entry 1

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,306

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
December 15, 2016 Filed Dec 15, 2016 21:44 UTC
Samartsev IgorDirector · Chief Technology Officer
SaleCommon Stock 4,000 $99.35 $397,400.00
Disclosure

SEC source: 0001111928-16-000292 · wf-form4_148183828044583.xml · nonDerivative · entry 3

Samartsev Igor · CIK 0001378545 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 81,000

F3 · price: The reported transaction involves sales transactions from $99.35 to $99.38 per share. The weighted average price per share was $99.35 Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares sold at each separate price.

Read SEC document
December 15, 2016 Filed Dec 15, 2016 21:44 UTC SaleCommon Stock 990 $100.02 $99,019.80
Disclosure

SEC source: 0001111928-16-000290 · wf-form4_148183822781860.xml · nonDerivative · entry 1

SEIFERT THOMAS J · CIK 0001473289 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,588

F1 · price: The reported transaction involves sales transactions from $100.00 to $100.05 per share. The weighted average price per share was $100.02. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares sold at each separate price.

Read SEC document
December 13, 2016 Filed Dec 15, 2016 21:44 UTC
Samartsev IgorDirector · Chief Technology Officer
Exercise / conversionDirector Stock Option (right to buy) · Derivative 20,000 $19.69 Strike: $19.69 $393,800.00
Disclosure

SEC source: 0001111928-16-000292 · wf-form4_148183828044583.xml · derivative · entry 4

Samartsev Igor · CIK 0001378545 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,000 shares

Expires 2018-08-18

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.

F4 · derivative.exercise_date: Stock options vesting 1/12th on May 9, 2012 and the remaining amount in eleven equal monthly amounts commencing June 9, 2012.

Read SEC document
December 13, 2016 Filed Dec 15, 2016 21:44 UTC
Samartsev IgorDirector · Chief Technology Officer
Disposition to issuerCommon Stock 20,000 $100.50 $2,010,000.00
Disclosure

SEC source: 0001111928-16-000292 · wf-form4_148183828044583.xml · nonDerivative · entry 2

Samartsev Igor · CIK 0001378545 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 348,970

F1 · kind: The sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 4, 2016.

F2 · price: The reported transaction involves sales transactions from $100.00 to $100.75 per share. The weighted average price per share was $100.50. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares sold at each separate price.

Read SEC document
December 13, 2016 Filed Dec 15, 2016 21:44 UTC
Samartsev IgorDirector · Chief Technology Officer
Exercise / conversionCommon Stock 20,000 $19.69 $393,800.00
Disclosure

SEC source: 0001111928-16-000292 · wf-form4_148183828044583.xml · nonDerivative · entry 1

Samartsev Igor · CIK 0001378545 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 368,970

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
December 13, 2016 Filed Dec 15, 2016 21:42 UTC SaleCommon Stock 5,000 $99.62 $498,100.00
Disclosure

SEC source: 0001111928-16-000288 · wf-form4_148183816476723.xml · nonDerivative · entry 1

HURLEY WILLIAM S · CIK 0001234646 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,820

F1 · price: The reported transaction involves sale transactions from $99.48 to $99.73 per share. The weighted average price per share was $99.62. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares sold at each separate price.

Read SEC document
December 09, 2016 Filed Dec 12, 2016 21:00 UTC
Samartsev IgorDirector · Chief Technology Officer
SaleCommon Stock 2,000 $99.24 $198,480.00
Disclosure

SEC source: 0001111928-16-000284 · wf-form4_148157640951710.xml · nonDerivative · entry 3

Samartsev Igor · CIK 0001378545 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 81,000

Read SEC document
December 09, 2016 Filed Dec 15, 2016 21:41 UTC Amendment
Samartsev IgorDirector · Chief Technology Officer
OtherCommon Stock 2,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001111928-16-000286 · wf-form4a_148183810502520.xml · nonDerivative · entry 2

Samartsev Igor · CIK 0001378545 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 85,000

F1 · kind: On December 12, 2016, the Reporting Person reported sales of shares in two private transactions. Due to broker's error, the transactions were rescinded through the broker's error account and therefore did not occur for the Reporting Person's account.

F1 · price: On December 12, 2016, the Reporting Person reported sales of shares in two private transactions. Due to broker's error, the transactions were rescinded through the broker's error account and therefore did not occur for the Reporting Person's account.

Read SEC document
December 08, 2016 Filed Dec 12, 2016 21:00 UTC
Samartsev IgorDirector · Chief Technology Officer
SaleCommon Stock 2,000 $98.66 $197,320.00
Disclosure

SEC source: 0001111928-16-000284 · wf-form4_148157640951710.xml · nonDerivative · entry 2

Samartsev Igor · CIK 0001378545 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 83,000

Read SEC document
December 08, 2016 Filed Dec 12, 2016 21:00 UTC
Samartsev IgorDirector · Chief Technology Officer
GiftCommon Stock 1,000 $0.00 $0.00
Disclosure

SEC source: 0001111928-16-000284 · wf-form4_148157640951710.xml · nonDerivative · entry 1

Samartsev Igor · CIK 0001378545 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Wife

Disclosed balance after: 353,000

Read SEC document
December 08, 2016 Filed Dec 15, 2016 21:41 UTC Amendment
Samartsev IgorDirector · Chief Technology Officer
OtherCommon Stock 2,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001111928-16-000286 · wf-form4a_148183810502520.xml · nonDerivative · entry 1

Samartsev Igor · CIK 0001378545 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 85,000

F1 · kind: On December 12, 2016, the Reporting Person reported sales of shares in two private transactions. Due to broker's error, the transactions were rescinded through the broker's error account and therefore did not occur for the Reporting Person's account.

F1 · price: On December 12, 2016, the Reporting Person reported sales of shares in two private transactions. Due to broker's error, the transactions were rescinded through the broker's error account and therefore did not occur for the Reporting Person's account.

Read SEC document
December 01, 2016 Filed Dec 2, 2016 21:16 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
SaleCommon Stock 750 $94.16 $70,620.00
Disclosure

SEC source: 0001111928-16-000282 · wf-form4_148071335849406.xml · nonDerivative · entry 1

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,943

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 15, 2015.

F2 · price: The reported transaction involves purchase transactions from $93.83 to $95.67 per share. The weighted average price per share was $94.16. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares purchased at each separate price.

Read SEC document
November 07, 2016 Filed Nov 8, 2016 21:11 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
SaleCommon Stock 5,589 $96.30 $538,220.70
Disclosure

SEC source: 0001111928-16-000280 · wf-form4_147863947534927.xml · nonDerivative · entry 1

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,693

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 15, 2015.

F2 · price: The reported transaction involves purchase transactions from $96.00 to $97.24 per share. The weighted average price per share was $96.30. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares purchased at each separate price.

Read SEC document
November 01, 2016 Filed Nov 2, 2016 20:05 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
SaleCommon Stock 1,911 $96.31 $184,048.41
Disclosure

SEC source: 0001111928-16-000275 · wf-form4_147811710456349.xml · nonDerivative · entry 1

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,282

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 15, 2015.

F2 · price: The reported transaction involves purchase transactions from $96.00 to $96.83 per share. The weighted average price per share was $96.31. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares purchased at each separate price.

Read SEC document
October 31, 2016 Filed Nov 2, 2016 20:05 UTC Exercise / conversionDirector Stock Option (right to buy) · Derivative 10,000 $54.98 Strike: $54.98 $549,800.00
Disclosure

SEC source: 0001111928-16-000276 · wf-form4_147811712792579.xml · derivative · entry 3

PEELER JOHN R · CIK 0001053572 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 10,000 shares

Expires 2022-11-01

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_date: Stock options vesting 25% on November 2, 2013, and the remaining in twelve equal quarterly amounts commencing February 2, 2014.

Read SEC document
October 31, 2016 Filed Nov 2, 2016 20:05 UTC Disposition to issuerCommon Stock 10,000 $96.77 $967,700.00
Disclosure

SEC source: 0001111928-16-000276 · wf-form4_147811712792579.xml · nonDerivative · entry 2

PEELER JOHN R · CIK 0001053572 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,819

F1 · price: The reported transaction involves purchase transactions from $96.12 to $97.36 per share. The weighted average price per share was $96.77. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares purchased at each separate price.

Read SEC document
October 31, 2016 Filed Nov 2, 2016 20:05 UTC Exercise / conversionCommon Stock 10,000 $54.98 $549,800.00
Disclosure

SEC source: 0001111928-16-000276 · wf-form4_147811712792579.xml · nonDerivative · entry 1

PEELER JOHN R · CIK 0001053572 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,819

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
October 28, 2016 Filed Oct 31, 2016 20:02 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
Exercise / conversionEmployee Stock Options (right to buy) · Derivative 4,018 $8.26 Strike: $8.26 $33,188.68
Disclosure

SEC source: 0001111928-16-000268 · wf-form4_147794414192018.xml · derivative · entry 6

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,018 shares

Expires 2019-02-25

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.

F4 · derivative.exercise_date: Options vest in 32 monthly installments commencing on May 1, 2011.

Read SEC document
October 28, 2016 Filed Oct 31, 2016 20:02 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
Disposition to issuerCommon Stock 4,018 $97.30 $390,951.40
Disclosure

SEC source: 0001111928-16-000268 · wf-form4_147794414192018.xml · nonDerivative · entry 4

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,193

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 15, 2015.

F3 · price: The reported transaction involves purchase transactions from $95.00 to $98.31 per share. The weighted average price per share was $97.30. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares purchased at each separate price.

Read SEC document
October 28, 2016 Filed Oct 31, 2016 20:02 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
Exercise / conversionCommon Stock 4,018 $8.26 $33,188.68
Disclosure

SEC source: 0001111928-16-000268 · wf-form4_147794414192018.xml · nonDerivative · entry 3

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,211

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
October 27, 2016 Filed Oct 31, 2016 20:02 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Exercise / conversionCommon Stock · Derivative 4,000 $53.76 Strike: $53.76 $215,040.00
Disclosure

SEC source: 0001111928-16-000269 · wf-form4_147794415680199.xml · derivative · entry 5

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 4,000 shares

Expires 2021-02-28

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.

F4 · derivative.exercise_date: Option vests in four quarterly installments commencing on March 31, 2015.

Read SEC document
October 27, 2016 Filed Oct 31, 2016 20:02 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Exercise / conversionCommon Stock · Derivative 5,000 $15.82 Strike: $15.82 $79,100.00
Disclosure

SEC source: 0001111928-16-000269 · wf-form4_147794415680199.xml · derivative · entry 4

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 5,000 shares

Expires 2020-02-25

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_date: Option vests in four quarterly installments commencing on March 31, 2014.

Read SEC document
October 27, 2016 Filed Oct 31, 2016 20:02 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Disposition to issuerCommon Stock 9,000 $93.61 $842,490.00
Disclosure

SEC source: 0001111928-16-000269 · wf-form4_147794415680199.xml · nonDerivative · entry 3

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,871

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 10, 2016.

F2 · price: The reported transaction involves purchase transactions from $90.82 to $95.03 per share. The weighted average price per share was $93.61. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares purchased at each separate price.

Read SEC document
October 27, 2016 Filed Oct 31, 2016 20:02 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Exercise / conversionCommon Stock 4,000 $53.76 $215,040.00
Disclosure

SEC source: 0001111928-16-000269 · wf-form4_147794415680199.xml · nonDerivative · entry 2

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,871

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
October 27, 2016 Filed Oct 31, 2016 20:02 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Exercise / conversionCommon Stock 5,000 $15.82 $79,100.00
Disclosure

SEC source: 0001111928-16-000269 · wf-form4_147794415680199.xml · nonDerivative · entry 1

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,871

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
October 27, 2016 Filed Oct 31, 2016 20:02 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
Exercise / conversionEmployee Stock Options (right to buy) · Derivative 607 $8.26 Strike: $8.26 $5,013.82
Disclosure

SEC source: 0001111928-16-000268 · wf-form4_147794414192018.xml · derivative · entry 5

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,018

Underlying: Common Stock · 607 shares

Expires 2019-02-25

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.

F4 · derivative.exercise_date: Options vest in 32 monthly installments commencing on May 1, 2011.

Read SEC document
October 27, 2016 Filed Oct 31, 2016 20:02 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
Disposition to issuerCommon Stock 607 $95.04 $57,689.28
Disclosure

SEC source: 0001111928-16-000268 · wf-form4_147794414192018.xml · nonDerivative · entry 2

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,193

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 15, 2015.

F2 · price: The reported transaction involves purchase transactions from $95.00 to $95.21 per share. The weighted average price per share was $95.04. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer information regarding the number of shares purchased at each separate price.

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October 27, 2016 Filed Oct 31, 2016 20:02 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
Exercise / conversionCommon Stock 607 $8.26 $5,013.82
Disclosure

SEC source: 0001111928-16-000268 · wf-form4_147794414192018.xml · nonDerivative · entry 1

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,800

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.

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September 30, 2016 Filed Oct 5, 2016 20:09 UTC
Lopresti Angelo PSVP, Secretary & Gen Counsel · 10% owner
Tax withholdingCommon Stock 227 $0.00 $0.00
Disclosure

SEC source: 0001111928-16-000261 · wf-form4_147569817510003.xml · nonDerivative · entry 1

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,193

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September 30, 2016 Filed Oct 5, 2016 20:10 UTC
Ovtchinnikov AlexanderSVP, Components · 10% owner
Tax withholdingCommon Stock 227 $0.00 $0.00
Disclosure

SEC source: 0001111928-16-000263 · wf-form4_147569822545489.xml · nonDerivative · entry 1

Ovtchinnikov Alexander · CIK 0001378547 · SVP, Components · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,274

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September 30, 2016 Filed Oct 5, 2016 20:10 UTC
Mammen Timothy PVSVP, Chief Financial Officer
Tax withholdingCommon Stock 242 $0.00 $0.00
Disclosure

SEC source: 0001111928-16-000262 · wf-form4_147569820798037.xml · nonDerivative · entry 1

Mammen Timothy PV · CIK 0001378546 · SVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,299

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September 30, 2016 Filed Oct 5, 2016 20:09 UTC
Samartsev IgorDirector · Chief Technology Officer
Tax withholdingCommon Stock 120 $0.00 $0.00
Disclosure

SEC source: 0001111928-16-000260 · wf-form4_147569815727923.xml · nonDerivative · entry 1

Samartsev Igor · CIK 0001378545 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 348,970

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September 30, 2016 Filed Oct 5, 2016 20:09 UTC
Ness TrevorSVP, Worldwide Sales & Mrkting
Tax withholdingCommon Stock 120 $0.00 $0.00
Disclosure

SEC source: 0001111928-16-000259 · wf-form4_147569814066096.xml · nonDerivative · entry 1

Ness Trevor · CIK 0001568884 · SVP, Worldwide Sales & Mrkting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,071

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September 30, 2016 Filed Oct 5, 2016 20:07 UTC
SCHERBAKOV EUGENE ADirector · SVP, MD IPG Laser GmbH · 10% owner
Tax withholdingCommon Stock 247 $0.00 $0.00
Disclosure

SEC source: 0001111928-16-000258 · wf-form4_147569806063462.xml · nonDerivative · entry 1

Shcherbakov Eugene A · CIK 0001378544 · Director · SVP, MD IPG Laser GmbH · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,871

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September 30, 2016 Filed Oct 31, 2018 20:24 UTC
Burgomaster Thomas JChief Accounting Officer
Tax withholdingCommon Stock 90 $82.35 $7,411.50
Disclosure

SEC source: 0001111928-18-000131 · wf-form4_154101746621901.xml · nonDerivative · entry 10

Burgomaster Thomas J · CIK 0001757298 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,565

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June 30, 2016 Filed Oct 31, 2018 20:24 UTC
Burgomaster Thomas JChief Accounting Officer
Tax withholdingCommon Stock 90 $80.00 $7,200.00
Disclosure

SEC source: 0001111928-18-000131 · wf-form4_154101746621901.xml · nonDerivative · entry 9

Burgomaster Thomas J · CIK 0001757298 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,655

F2 · balance_after: Includes 145 shares acquired under the IPG employee stock purchase plan on June 30, 2016.

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April 26, 2016 Filed Oct 31, 2018 20:24 UTC
Burgomaster Thomas JChief Accounting Officer
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 2,500 $0.00 Strike: $53.76 $0.00
Disclosure

SEC source: 0001111928-18-000131 · wf-form4_154101746621901.xml · derivative · entry 31

Burgomaster Thomas J · CIK 0001757298 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,400

Underlying: Common Stock · 2,500 shares

Expires 2021-03-01

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.

F12 · derivative.exercise_date: Options vest 25% quarterly commencing March 31, 2015.

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April 26, 2016 Filed Oct 31, 2018 20:24 UTC
Burgomaster Thomas JChief Accounting Officer
SaleCommon Stock 2,500 $100.36 $250,900.00
Disclosure

SEC source: 0001111928-18-000131 · wf-form4_154101746621901.xml · nonDerivative · entry 8

Burgomaster Thomas J · CIK 0001757298 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,600

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April 26, 2016 Filed Oct 31, 2018 20:24 UTC
Burgomaster Thomas JChief Accounting Officer
Exercise / conversionCommon Stock 2,500 $53.76 $134,400.00
Disclosure

SEC source: 0001111928-18-000131 · wf-form4_154101746621901.xml · nonDerivative · entry 7

Burgomaster Thomas J · CIK 0001757298 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,100

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
March 31, 2016 Filed Oct 31, 2018 20:24 UTC
Burgomaster Thomas JChief Accounting Officer
Tax withholdingCommon Stock 90 $96.08 $8,647.20
Disclosure

SEC source: 0001111928-18-000131 · wf-form4_154101746621901.xml · nonDerivative · entry 6

Burgomaster Thomas J · CIK 0001757298 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,600

Read SEC document
March 28, 2016 Filed Oct 31, 2018 20:24 UTC
Burgomaster Thomas JChief Accounting Officer
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 1,600 $0.00 Strike: $21.35 $0.00
Disclosure

SEC source: 0001111928-18-000131 · wf-form4_154101746621901.xml · derivative · entry 30

Burgomaster Thomas J · CIK 0001757298 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,750

Underlying: Common Stock · 1,600 shares

Expires 2020-08-05

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.

F11 · derivative.exercise_date: Options vest 25% on August 5, 2011 and the remaining amount in fourteen equal monthly amounts commencing September 30, 2011.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.