What is RTW Investments LP shorting right now?

RTW Investments LP has 1 disclosed net short position of 0.5% or more in Sweden. The largest is 0.73% of Elekta AB (publ).

Is this the fund's whole short book?

No. Only net short positions of 0.5% or more of a company's issued share capital are published with the holder's name. Positions between 0.1% and 0.5% are reported to regulators privately, and other markets (such as the UK and Australia) publish anonymous aggregates only.

Position holders must disclose changes by the next trading day, and we refresh from each register every trading day. The date beside each position is the holder's latest disclosure for it.

What is RTW Investments LP shorting?

1 disclosed net short position of 0.5% or more across Sweden, per the official registers. Positions below the 0.5% publication threshold are not public. Each position is a percentage of that company's issued share capital, not a money value: a large percentage of a small company can be less money than a small percentage of a giant.

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Cite this page

Plain

Short position data for RTW Investments LP: the EU national registers, compiled by howshorted.com, position date 13 Oct 2026. https://howshorted.com/holders/rtw-investments-lp/

Wikipedia

<ref>{{cite web |title=RTW Investments LP short position data |url=https://howshorted.com/holders/rtw-investments-lp/ |website=HowShorted |publisher=howshorted.com (data: the EU national registers) |date=2026-10-13 |access-date=2026-10-13}}</ref>

BibTeX

@misc{howshorted-rtw-investments-lp-2026-10-13,
  title        = {RTW Investments LP short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/holders/rtw-investments-lp/}},
  note         = {Data: the EU national registers, position date 13 Oct 2026; accessed 2026-10-13},
  year         = {2026}
}

Company	Market	Position	Since	Peak	First disclosed
Elekta AB (publ)	🇸🇪 Sweden	0.73%	7 Apr 2022	0.73%	7 Apr 2022

"Position" is the holder's disclosed net short position as a percentage of that company's issued share capital; percentages are not comparable or summable across companies. "Since" is the holder's latest disclosure date for the position, not when it was opened; "new" marks disclosures within the last 7 days of register data.

Past positions

Positions RTW Investments LP disclosed in the past that are no longer in any register's current set. The last event is the final disclosure the register holds, usually the below-threshold exit.

Company	Market	Peak	Last event
Ambu A/S	🇩🇰 Denmark	0.51%	0.39% · 30 Sep 2022
AB SCIENCE	🇫🇷 France	1.09%	0.48% · 8 Dec 2021

Frequently asked questions

What is RTW Investments LP shorting right now?: RTW Investments LP has 1 disclosed net short position of 0.5% or more in Sweden. The largest is 0.73% of Elekta AB (publ).
Is this the fund's whole short book?: No. Only net short positions of 0.5% or more of a company's issued share capital are published with the holder's name. Positions between 0.1% and 0.5% are reported to regulators privately, and other markets (such as the UK and Australia) publish anonymous aggregates only.
How current is this?: Position holders must disclose changes by the next trading day, and we refresh from each register every trading day. The date beside each position is the holder's latest disclosure for it.

Swedish short position data: source Finansinspektionen (FI).