Naya Capital Management UK Limited
UK short positions the FCA published under this name: 12 companies and 166 disclosures between 6 Aug 2015 and 25 Jan 2023. Each figure is that position as a percentage of the company's issued share capital, not a money value, and percentages are not comparable or summable across companies.
This name still appears in the European registers, which do publish holders: current positions for Naya Capital Management UK Limited. The two datasets are kept separate and never combined.
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Positions open when the register closed
No position was still open in the register's final snapshot of 10 Jul 2026: every chain below had already fallen back below the 0.5% publication threshold.
Full disclosure history
Every disclosure the archive holds, grouped by company and ordered oldest first within each chain. A chain begins when the position first crossed 0.5% and ends either at the freeze or at the last disclosure before it fell back below the threshold.
ROLLS-ROYCE HOLDINGS PLC
closed 25 Jan 20238 disclosures · peak 0.80% · first 12 Aug 2022 · last 25 Jan 2023
12 Aug 2022 0.55% · 30 Sep 2022 0.60% · 19 Oct 2022 0.71% · 1 Dec 2022 0.80% · 3 Jan 2023 0.78% · 11 Jan 2023 0.68% · 24 Jan 2023 0.56% · 25 Jan 2023 0.40%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
ALPHAWAVE IP GROUP PLC
closed 30 May 202217 disclosures · peak 1.31% · first 16 Jul 2021 · last 30 May 2022
16 Jul 2021 0.61% · 3 Aug 2021 0.70% · 10 Aug 2021 0.82% · 19 Aug 2021 0.92% · 21 Sep 2021 1.06% · 29 Sep 2021 0.89% · 8 Oct 2021 1.03% · 20 Oct 2021 1.17% · 22 Oct 2021 1.31% · 30 Nov 2021 1.20% · 17 Jan 2022 1.30% · 11 Mar 2022 1.27% · 14 Mar 2022 0.97% · 4 Apr 2022 0.89% · 8 Apr 2022 0.79% · 29 Apr 2022 0.54% · 30 May 2022 0.45%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
PEARSON PLC
closed 27 Jan 202111 disclosures · peak 1.09% · first 29 Apr 2020 · last 27 Jan 2021
29 Apr 2020 0.54% · 1 Jun 2020 0.65% · 4 Jun 2020 0.73% · 30 Jun 2020 0.69% · 13 Jul 2020 0.80% · 29 Sep 2020 1.09% · 2 Dec 2020 0.90% · 4 Jan 2021 0.89% · 22 Jan 2021 0.75% · 26 Jan 2021 0.63% · 27 Jan 2021 0.44%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
MICRO FOCUS INTERNATIONAL PLC
closed 11 May 202014 disclosures · peak 1.01% · first 19 Sep 2019 · last 11 May 2020
19 Sep 2019 0.50% · 6 Jan 2020 0.69% · 7 Jan 2020 0.73% · 4 Feb 2020 0.85% · 19 Feb 2020 0.93% · 25 Feb 2020 1.01% · 9 Mar 2020 0.92% · 12 Mar 2020 0.61% · 20 Mar 2020 0.72% · 7 Apr 2020 0.85% · 9 Apr 2020 0.96% · 28 Apr 2020 0.81% · 29 Apr 2020 0.60% · 11 May 2020 0.30%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
JOHN WOOD GROUP LIMITED
closed 15 Apr 202030 disclosures · peak 1.21% · first 20 Dec 2018 · last 15 Apr 2020
20 Dec 2018 0.62% · (6 further disclosures) · 31 May 2019 0.67% · 26 Jun 2019 0.79% · 28 Jun 2019 0.81% · 25 Jul 2019 0.90% · 20 Aug 2019 1.03% · 29 Aug 2019 0.97% · 19 Sep 2019 1.02% · 4 Oct 2019 0.98% · 8 Oct 2019 0.87% · 10 Oct 2019 0.77% · 26 Nov 2019 0.69% · 13 Dec 2019 0.77% · 20 Dec 2019 0.91% · 2 Jan 2020 1.02% · 3 Feb 2020 1.10% · 3 Mar 2020 1.21% · 9 Mar 2020 1.09% · 10 Mar 2020 1.18% · 19 Mar 2020 1.02% · 23 Mar 2020 0.96% · 30 Mar 2020 0.78% · 2 Apr 2020 0.59% · 15 Apr 2020 0.46%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Arrow Global Group PLC
closed 12 Mar 202015 disclosures · peak 2.00% · first 8 May 2018 · last 12 Mar 2020
8 May 2018 0.49% · 9 May 2018 0.61% · 17 May 2018 0.71% · 4 Jun 2018 0.89% · 1 Aug 2018 0.92% · 30 Aug 2018 1.08% · 8 Nov 2018 1.34% · 5 Dec 2018 1.45% · 2 Jan 2019 1.50% · 17 Jan 2019 1.61% · 18 Jan 2019 1.71% · 5 Feb 2019 1.85% · 28 Jun 2019 1.91% · 5 Feb 2020 2.00% · 12 Mar 2020 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Ultra Electronics Holdings PLC
closed 16 Aug 201923 disclosures · peak 1.87% · first 15 Aug 2017 · last 16 Aug 2019
15 Aug 2017 0.51% · 15 Sep 2017 0.71% · 6 Oct 2017 0.86% · 13 Nov 2017 0.33% · 14 Nov 2018 0.72% · 16 Nov 2018 0.93% · 23 Nov 2018 1.15% · 5 Dec 2018 1.21% · 13 Dec 2018 1.52% · 11 Jan 2019 1.60% · 17 Jan 2019 1.73% · 1 Feb 2019 1.87% · 7 Mar 2019 1.47% · 19 Mar 2019 1.54% · 28 Jun 2019 1.60% · 7 Aug 2019 1.50% · 8 Aug 2019 1.21% · 9 Aug 2019 1.13% · 12 Aug 2019 1.04% · 13 Aug 2019 0.98% · 14 Aug 2019 0.84% · 15 Aug 2019 0.70% · 16 Aug 2019 0.48%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
AGGREKO PLC
closed 31 Jul 20197 disclosures · peak 0.84% · first 5 Feb 2019 · last 31 Jul 2019
5 Feb 2019 0.51% · 26 Feb 2019 0.69% · 27 Feb 2019 0.74% · 5 Apr 2019 0.84% · 15 Jul 2019 0.76% · 17 Jul 2019 0.67% · 31 Jul 2019 0.48%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
BABCOCK INTERNATIONAL GROUP PLC
closed 22 May 20194 disclosures · peak 0.71% · first 2 Jan 2019 · last 22 May 2019
2 Jan 2019 0.51% · 8 Jan 2019 0.61% · 16 Jan 2019 0.71% · 22 May 2019 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
KIER GROUP PLC
closed 30 Nov 20187 disclosures · peak 1.01% · first 12 Oct 2018 · last 30 Nov 2018
12 Oct 2018 0.52% · 17 Oct 2018 0.66% · 23 Oct 2018 0.76% · 1 Nov 2018 0.81% · 15 Nov 2018 0.91% · 16 Nov 2018 1.01% · 30 Nov 2018 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
CARILLION PLC
closed 12 Jul 201726 disclosures · peak 1.51% · first 6 Aug 2015 · last 12 Jul 2017
6 Aug 2015 0.69% · (2 further disclosures) · 14 Aug 2015 0.98% · 17 Aug 2015 1.00% · 25 Aug 2015 1.12% · 30 Aug 2015 1.20% · 1 Sep 2015 1.33% · 5 Feb 2016 1.29% · 28 Jun 2016 1.36% · 18 Aug 2016 1.40% · 3 Oct 2016 1.38% · 17 Feb 2017 1.25% · 20 Feb 2017 1.10% · 21 Feb 2017 0.97% · 7 Mar 2017 0.85% · 9 Mar 2017 0.79% · 15 Mar 2017 0.88% · 4 Apr 2017 0.94% · 25 Apr 2017 1.04% · 26 Apr 2017 1.10% · 25 May 2017 1.42% · 5 Jun 2017 1.51% · 3 Jul 2017 1.47% · 10 Jul 2017 0.76% · 12 Jul 2017 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Inmarsat PLC
closed 3 Jul 20174 disclosures · peak 0.61% · first 28 Feb 2017 · last 3 Jul 2017
28 Feb 2017 0.51% · 30 Mar 2017 0.61% · 30 Jun 2017 0.53% · 3 Jul 2017 0.49%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Frequently asked questions
- Which UK companies did Naya Capital Management UK Limited short?
- The FCA's named register recorded Naya Capital Management UK Limited against 12 UK companies between 2015 and 2026, across 166 disclosures. No position was still open when the register closed on 10 Jul 2026.
- Is this list current?
- No. It is a frozen archive. The FCA stopped publishing position-holder names on 13 July 2026 and now publishes one anonymous aggregate per company per day, so no new named UK disclosure exists after 10 Jul 2026. Today's UK figures are on each company's own page.
- Was this the whole of Naya Capital Management UK Limited's UK short book?
- No. Only net short positions of 0.5% or more of a company's issued share capital were published with the holder's name. Smaller positions were reported to the FCA privately and never appeared in the register, so the archive is a floor, not a full book.
Source: the Financial Conduct Authority's daily short positions file, captured on 10 Jul 2026 from fca.org.uk and archived unchanged. Figures are as the FCA published them; this site is not affiliated with the FCA. Nothing here is investment advice.