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Aixtron SE

Short position disclosed on September 14, 2026.

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Evolution of the disclosed total

0%1%2%3%
Oct 2025Jan 2026Apr 2026Jul 2026
Sum of open short positions, as % of capital. Hover or tap the curve to see which funds make it up.
The whole history, peaking at 16.39% on November 22, 2012. The shaded band is the year shown above.

March 26, 2003 today

Open positions

The funds disclosing a short position that is still open.
FundTwelve months% of capitalOver the yearSince
Summit Partners Public Asset Management, LLC0.73%newSeptember 14, 2026
Isabella Capital Management LLP0.58%newSeptember 3, 2026
Adage Capital Management, LP0.51%newAugust 3, 2026

In the United States AIXXF (OTC): 1,593,028 shares sold short on August 31, 2026. FINRA names no fund.

On the other side: the funds that hold Aixtron SE Titelia

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History of disclosures

1496 disclosures on record for this share.
DateFund% of capitalEnd of publication
September 16, 2026D.E. Shaw & Co. (London), LLP0.46%
September 14, 2026Summit Partners Public Asset Management, LLC0.73%still open
September 8, 2026D.E. Shaw & Co. (London), LLP0.58%
September 3, 2026Isabella Capital Management LLP0.58%still open
September 2, 2026Summit Partners Public Asset Management, LLC0.63%
September 1, 2026D.E. Shaw & Co. (London), LLP0.69%
September 1, 2026Summit Partners Public Asset Management, LLC0.58%
August 18, 2026D.E. Shaw & Co. (London), LLP0.79%
August 12, 2026Isabella Capital Management LLP0.61%
August 3, 2026Adage Capital Management, LP0.51%still open
July 30, 2026Isabella Capital Management LLP0.69%
July 20, 2026D.E. Shaw & Co. (London), LLP0.87%
July 26, 2022Voleon Capital Management LP0.49%
July 25, 2022Canada Pension Plan Investment Board0.33%
July 22, 2022Canada Pension Plan Investment Board0.53%
July 21, 2022Canada Pension Plan Investment Board0.65%
July 21, 2022Voleon Capital Management LP0.50%
July 20, 2022Canada Pension Plan Investment Board0.72%
July 19, 2022Canada Pension Plan Investment Board0.84%
July 18, 2022Canada Pension Plan Investment Board0.96%
July 15, 2022Canada Pension Plan Investment Board1.13%
July 14, 2022Canada Pension Plan Investment Board1.22%
July 13, 2022Canada Pension Plan Investment Board1.37%
July 12, 2022Canada Pension Plan Investment Board1.47%
July 11, 2022Canada Pension Plan Investment Board1.56%
July 8, 2022Canada Pension Plan Investment Board1.64%
July 7, 2022Canada Pension Plan Investment Board1.74%
July 6, 2022Canada Pension Plan Investment Board1.84%
June 30, 2022Canada Pension Plan Investment Board1.97%
April 8, 2022Canada Pension Plan Investment Board2.07%
April 6, 2022Canada Pension Plan Investment Board2.19%
April 5, 2022Canada Pension Plan Investment Board2.33%
April 4, 2022Canada Pension Plan Investment Board2.44%
April 22, 2021Canada Pension Plan Investment Board2.57%
November 5, 2020Canada Pension Plan Investment Board2.60%
November 4, 2020Canada Pension Plan Investment Board2.53%
October 30, 2020Citadel Advisors LLC0.45%
October 29, 2020Citadel Advisors LLC0.57%
August 28, 2020Cpmg, INC.0.00%
July 31, 2020Citadel Advisors LLC0.49%
July 24, 2020Citadel Advisors LLC0.50%
July 14, 2020Canada Pension Plan Investment Board2.35%
May 12, 2020Canada Pension Plan Investment Board2.26%
May 7, 2020PDT Partners, LLC0.49%
May 4, 2020Cpmg, INC.0.00%
April 30, 2020Cpmg, INC.0.35%
April 29, 2020Arrowstreet Capital, Limited Partnership0.48%
April 29, 2020Cpmg, INC.0.45%
April 28, 2020Cpmg, INC.0.58%
April 24, 2020Cpmg, INC.0.76%

Download 1496 filings as CSV Columns: Date, Fund, Market, Disclosed position, Unit, End date. The other formats

Other companies sold short in Germany

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The figure comes from the regulator register, not from this site. Quoting both lets your reader check it.

QuiVad, Aixtron SE, source Bundesanzeiger, data as at September 14, 2026, https://www.quivad.com/action/aixtron-se