IPG Photonics Corporation (IPGP) Ownership

NASDAQ: IPGPTop holders, insider trades and short interest.

IPGP ownership summary

as of October 18, 2026
Institutions
75.5%
of shares outstanding
Insiders
38.98%
of shares outstanding
Shares outstanding
42.5M
Float
27.8M
shares available to trade
Short interest
23.75%
3.7M shares short
Days to cover
8.75
short interest up 8.3% vs prior month
  • Institutions 75.53%
  • Insiders 38.98%

IPGP top institutional holders

20 largest
IPG Photonics Corporation top institutional holders
#Holder% of sharesSharesValueChangeReported
1Arnhold & S. Bleichroeder Advisers, LLC15.70%6.7M$474.2M+2.1M (+45.4%)June 30, 2026
2BlackRock Inc6.70%2.9M$202.4M+137,233 (+5.1%)June 30, 2026
3Vanguard Portfolio Management, LLC3.87%1.6M$116.9M+6,081 (+0.4%)June 30, 2026
4Dimensional Fund Advisors, Inc.3.76%1.6M$113.6M−101,032 (−5.9%)June 30, 2026
5Lazard Asset Management LLC3.36%1.4M$101.4M+53,275 (+3.9%)June 30, 2026
6Sumitomo Mitsui Trust Group Inc3.20%1.4M$96.7M+11,787 (+0.9%)June 30, 2026
7Victory Capital Management Inc.3.09%1.3M$93.4M+1.3M (+32,558.5%)June 30, 2026
8Vanguard Capital Management, LLC2.71%1.2M$81.8M+12,576 (+1.1%)June 30, 2026
9Neuberger Berman Group LLC2.30%977K$69.4M+132,576 (+15.7%)June 30, 2026
10State Street Corp2.14%909K$64.6M+90,028 (+11.0%)June 30, 2026
11Westwood Holdings Group Inc2.12%902K$64.0M+122,013 (+15.7%)June 30, 2026
12M&G PLC1.40%596K$42.4M−371 (−0.1%)June 30, 2026
13Disciplined Growth Investors Inc1.25%531K$37.7M+2,096 (+0.4%)June 30, 2026
14Geode Capital Management, LLC1.20%512K$36.3M+11,503 (+2.3%)June 30, 2026
15Segall Bryant & Hamill1.17%499K$35.4M+29,339 (+6.2%)June 30, 2026
16AQR Capital Management LLC1.05%449K$31.9M+18,850 (+4.4%)June 30, 2026
17Morgan Stanley - Brokerage Accounts1.01%432K$30.7M−161,038 (−27.2%)June 30, 2026
18Amvescap Plc.0.94%400K$28.4M−186,787 (−31.8%)June 30, 2026
19Citadel Advisors Llc0.89%378K$26.8M+192,021 (+103.4%)June 30, 2026
20Allianz Asset Management AG0.79%338K$24.0M−14,916 (−4.2%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 15 holders added 4.2M shares and 5 cut 464K.

IPGP top mutual fund and ETF holders

20 largest
IPG Photonics Corporation top fund holders
#Holder% of sharesSharesValueChangeReported
1First Eagle Global A5.53%2.4M$166.9M—August 31, 2026
2Victory Sycamore Established Value R2.25%955K$67.8M+955,000 (0.0%)June 30, 2026
3iShares Core S&P Mid-Cap ETF2.21%938K$66.6M−336 (−0.0%)September 30, 2026
4Vanguard MStar Total Stk Mkt Idx Invest1.90%810K$57.5M−1,225 (−0.2%)August 31, 2026
5Vanguard Information Technology ETF1.50%640K$45.4M+1,475 (+0.2%)September 30, 2026
6Vanguard Small Cap Index1.46%623K$44.2M+36,972 (+6.3%)September 30, 2026
7Thrivent Small Cap Stock A1.02%435K$30.9M+216,264 (+98.9%)August 31, 2026
8Robo Global® Robotics&Automation ETF0.96%410K$29.1M—September 30, 2026
9L&G ROBO Global Rbtc and Atmtn ETF0.83%355K$25.2M−699 (−0.2%)September 30, 2026
10Vanguard MStar Small Cap Growth Indx Inv0.81%347K$24.6M+11,083 (+3.3%)September 30, 2026
11First Eagle Amundi International AU-C0.71%302K$21.4M—August 31, 2026
12FullerThaler Behavioral Sm-Cp Gr R60.67%284K$20.2M+283,800 (0.0%)March 31, 2026
13DFA US Small Cap Value I0.61%260K$18.5M+65,006 (+33.3%)August 31, 2026
14DFA US Targeted Value I0.56%238K$16.9M—August 31, 2026
15Neuberger Intrinsic Value I0.54%231K$16.4M—September 30, 2026
16PIMCO RAE US Small Instl0.51%219K$15.5M−28,454 (−11.5%)June 30, 2026
17Dimensional US Targeted Value ETF0.47%201K$14.3M—September 30, 2026
18State Street® SPDR® S&P MIDCAP 400® ETF0.46%195K$13.8M+8,756 (+4.7%)September 30, 2026
19Tuttle Capital Pure Play Photonics ETF0.45%191K$13.6M—September 30, 2026
20DFA US Small Cap I0.44%189K$13.4M—August 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

IPGP insider transactions

latest 20
IPG Photonics Corporation insider transactions
DateNameTransactionPriceSharesValue
2026-03-17Mary E ButtarazziSell$116.22500$58,110
2026-02-02Eric MeuriceSell$95.00750$71,250
2026-01-21Eugene A ScherbakovSell$80.962,700$218,592
2026-01-21Fibre Devices Ltd IpSell$81.5213,381$1.1M
2026-01-20Fibre Devices Ltd IpSell$79.9021,619$1.7M
2026-01-16Fibre Devices Ltd IpSell$79.8729,167$2.3M
2026-01-15Valentin Gapontsev Trust ISell$80.107,952$636,955
2026-01-14Valentin Gapontsev Trust ISell$77.5717,526$1.4M
2026-01-13Valentin Gapontsev Trust ISell$76.9823,029$1.8M
2026-01-12Valentin Gapontsev Trust ISell$76.2517,993$1.4M
2025-12-24Fibre Devices Ltd IpSell$74.7612,785$955,807
2025-12-23Fibre Devices Ltd IpSell$74.6228,445$2.1M
2025-12-23Eugene A ScherbakovSell$74.442,700$200,988
2025-12-22Fibre Devices Ltd IpSell$75.4322,937$1.7M
2025-12-16Valentin Gapontsev Trust ISell$77.0627,116$2.1M
2025-12-15Valentin Gapontsev Trust ISell$77.6339,384$3.1M
2025-11-25Tang AgnesSell$76.751,881$144,367
2025-11-24Eugene A ScherbakovSell$76.032,700$205,281
2025-11-24Fibre Devices Ltd IpSell$76.3635,000$2.7M
2025-11-21Fibre Devices Ltd IpSell$74.2629,167$2.2M

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

IPGP shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns IPGP

Institutional investors own 75.5% of IPG Photonics's shares and insiders 38.98%. The largest holder is Arnhold & S. Bleichroeder Advisers, LLC with 15.70% of the shares (6.7M), as of June 30, 2026. Among the top 20 institutions, 15 added shares and 5 reduced their stake in the latest filings. Short interest is 23.75% of the float, or 8.75 days of average trading volume. The share count fell 19.4% since 2014.

Related: IPGP analyst forecast, IPGP key metrics. See the IPGP stock overview for the latest quote and news.

IPGP ownership FAQ

Who owns the most IPG Photonics stock?

The largest shareholders of IPG Photonics are Arnhold & S. Bleichroeder Advisers, LLC (15.70%), BlackRock Inc (6.70%), Vanguard Portfolio Management, LLC (3.87%), Dimensional Fund Advisors, Inc. (3.76%), Lazard Asset Management LLC (3.36%).

What percentage of IPG Photonics is owned by institutions?

Institutions hold 75.5% of IPG Photonics's shares outstanding; insiders hold 38.98%.

Which funds own IPG Photonics?

The largest fund holders of IPG Photonics are First Eagle Global A (5.53%), Victory Sycamore Established Value R (2.25%), iShares Core S&P Mid-Cap ETF (2.21%), Vanguard MStar Total Stk Mkt Idx Invest (1.90%), Vanguard Information Technology ETF (1.50%).

What is IPG Photonics's short interest?

3.7M shares of IPG Photonics were sold short, 23.75% of the float; at the average daily volume it would take 8.75 days to cover.

Are insiders buying or selling IPG Photonics?

Of the latest 20 reported insider transactions in IPG Photonics (since November 21, 2025), 0 were purchases and 20 were sales.

How many shares of IPG Photonics are outstanding?

IPG Photonics has 42.5M shares outstanding, of which 27.8M are in the public float.

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