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IPG PHOTONICS CORP

IPGP Net selling
CIK 0001111928 #1703 in the set updated 17 Sep 2026
Bought (120 mo)
$450.02K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$290.16M
$106.35M on a plan · $79.59M straight out of an exercise
Sold at will
$104.22M
175 of 591 sales
Net
−$289.71M
−$103.77M against sales at will

By person

27 insiders · 650 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Valentin Gapontsev Trust I entity
10% owner
—
$105.47M (174) scheduled
−$105.47M
6,642,886
15.62%
$506.52M
−12.8%
IP FIBRE DEVICES LTD entity
10% owner
—
$66.02M (81) scheduled
−$66.02M
6,405,989
15.06%
$488.46M
−8.7%
Mammen Timothy PV
SVP, Chief Financial Officer
$250.62K (1)
$18.99M (33) scheduled
−$18.74M
76,438
0.1797%
$5.83M
+158.8%
GAPONTSEV VALENTIN P
CEO & Chairman of the Board
—
$17.18M (16)
−$17.18M
298,638
0.7021%
$22.77M
+26.6%
Lopresti Angelo P
SVP, Secretary & Gen Counsel
—
$14.05M (34) scheduled
−$14.05M
59,841
0.1407%
$4.56M
+21.1%
Ness Trevor
SVP, Chief Revenue Officer
—
$12.62M (59) scheduled
−$12.62M
38,425
0.0903%
$2.93M
+246.1%
Ovtchinnikov Alexander
SVP, Chief Technology Officer
—
$11.42M (14) scheduled
−$11.42M
74,360
0.1748%
$5.67M
+2.6%
SCHERBAKOV EUGENE A
Director
—
$10.35M (46) scheduled
−$10.35M
48,210
0.1133%
$3.68M
+221.3%
Burgomaster Thomas J
Chief Accounting Officer
—
$7.01M (30) scheduled
−$7.01M
11,566
0.0272%
$881.91K
+70.9%
Samartsev Igor
SVP, Chief Scientist
—
$5.50M (16) scheduled
−$5.50M
933,480
2.19%
$71.18M
+6.5%
PEELER JOHN R
Director
$199.40K (2)
$5.40M (22) scheduled
−$5.20M
20,886
0.0491%
$1.59M
+258.9%
HURLEY WILLIAM S
Director
—
$4.07M (4) scheduled
−$4.07M
11,005
0.0259%
$839.13K
−25.7%
SEIFERT THOMAS J
Director
—
$3.48M (6) scheduled
−$3.48M
8,946
0.0210%
$682.13K
+18.1%
STUKALIN FELIX I
SVP, Chief Operating Officer
—
$3.41M (17) scheduled
−$3.41M
36,316
0.0854%
$2.77M
+96.1%
Lego Catherine P
Director
—
$1.69M (2) scheduled
−$1.69M
10,786
0.0254%
$822.43K
+79.4%
GAUTHIER HENRY E
Director
—
$1.29M (1)
−$1.29M
17,051
0.0401%
$1.30M
−12.0%
Meurice Eric
Director
—
$1.26M (23) scheduled
−$1.26M
25,239
0.0593%
$1.92M
+212.9%
Desmond Jeanmarie F.
Director
—
$495.49K (5)
−$495.49K
10,486
0.0247%
$799.56K
—
Agnes Tang
Director
—
$408.36K (7) scheduled
−$408.36K
9,588
0.0225%
$731.09K
—
Buttarazzi Mary E.
VP, Corp Controller and CAO
—
$58.11K (1)
−$58.11K
4,749
0.0112%
$362.11K
+21.9%
Pavlova Natalia
Chief Technology Officer
—
—
—
151,665
0.3566%
$11.56M
+0.4%
Gitin Mark Milton
CEO
—
—
—
87,232
0.2051%
$6.65M
+25,039%
CHILD MICHAEL C
Director
—
—
—
68,625
0.1613%
$5.23M
+318.5%
Dougherty Greg
Director
—
—
—
18,334
0.0431%
$1.40M
—
Beecher Gregory R
Director
—
—
—
12,216
0.0287%
$931.47K
—
KENNEDY KOLLEEN T
Director
—
—
—
11,513
0.0271%
$877.87K
—
Bucher Paulus
SVP, Global Operations
—
—
—
6,053
0.0142%
$461.54K
—

Individual transactions

19
Insider
Date
Role
Action
Shares
Price
Amount
Mammen Timothy PV
22 May 2026
SVP, Chief Financial Officer
Sell
2,712
$120.37
$326.44K
Mammen Timothy PV
22 May 2026
SVP, Chief Financial Officer
Sell
7,263
$119.60
$868.65K
Desmond Jeanmarie F.
14 May 2026
Director
Sell
1,690
$105.58
$178.43K
Buttarazzi Mary E.
17 Mar 2026
VP, Corp Controller and CAO
Sell
500
$116.22
$58.11K
Ness Trevor
18 Sep 2025
SVP, Sales & Strategic Bus Dev
Sell
100
$83.15
$8.32K
Ness Trevor
18 Sep 2025
SVP, Sales & Strategic Bus Dev
Sell
1,578
$82.61
$130.36K
Valentin Gapontsev Trust I
16 Sep 2025
10% owner
Sell
14,180
$80.67
$1.14M
Valentin Gapontsev Trust I
15 Sep 2025
10% owner
Sell
14,426
$81.15
$1.17M
Valentin Gapontsev Trust I
15 Sep 2025
10% owner
Sell
37,894
$80.54
$3.05M
Ness Trevor
27 Aug 2025
SVP, Sales & Strategic Bus Dev
Sell
674
$83.31
$56.15K
Ness Trevor
27 Aug 2025
SVP, Sales & Strategic Bus Dev
Sell
1,004
$82.69
$83.02K
Desmond Jeanmarie F.
8 Aug 2025
Director
Sell
1,360
$76.24
$103.69K
Lopresti Angelo P
6 Jun 2025
SVP, Secretary & Gen Counsel
Sell
4,500
$69.28
$311.76K
SCHERBAKOV EUGENE A
20 May 2025
Director
Sell
2,680
$66.28
$177.63K
SCHERBAKOV EUGENE A
20 May 2025
Director
Sell
1,570
$65.55
$102.91K
SCHERBAKOV EUGENE A
19 May 2025
Director
Sell
4,250
$65.37
$277.82K
Valentin Gapontsev Trust I
6 Mar 2025
10% owner
Sell
5,597
$63.33
$354.46K
Valentin Gapontsev Trust I
6 Mar 2025
10% owner
Sell
69,403
$62.56
$4.34M
Desmond Jeanmarie F.
30 May 2024
Director
Sell
985
$85.20
$83.92K
Showing 250 of 650 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 517
Amendments (4/A) skipped 3
Filings about a different issuer 0
Unreadable filings 0
Joint filings 35
Sales on a Rule 10b5-1 plan 213
Sales straight out of an exercise 203
Sales at will 175
Transactions with no price 0
Shares from compensation/vesting 3,088,899
Sales filed before the plan box existed 154
History held since 5 Oct 2016