OpenRegistry
UK companies/Company owner profile

DDF PARALLEL LLP

UK registered
openregistry-gb-OC416321·8 UK shareholdings·2 ownership layers

DDF PARALLEL LLP is a UK-registered corporate shareholder (Companies House number OC416321) and holds shares in 8 active UK companies, recorded across 20 share-class positions on their Companies House confirmation statements (CS01). Beneath those direct holdings OpenRegistry resolves a further 2 companies spanning 2 ownership layers, of which 5 direct holdings are themselves holding companies; the persons-with-significant-control register independently agrees on 1 of these holdings. Sophymarine OpenRegistry ID openregistry-gb-OC416321. It ranks #2,934 of 54,210 corporate shareholders by number of active UK holdings. Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Companies held
8
Share-class positions
20
Identity
UK company OC416321
Jurisdiction
UNITED KINGDOM
Ownership layers below
2
Holdings that are holding companies
5
PSC register agrees on
1 holdings

Company profile

Companies House profile of DDF PARALLEL LLP

Shareholders

Shares held by DDF PARALLEL LLP in 8 UK companies

Ownership chain

2 companies across 2 layers beneath DDF PARALLEL LLP

Official record

Companies House record OC416321

Shareholdings

Every company DDF PARALLEL LLP appears on as a member, as filed. 8 of 8 are linked to their Companies House profile.

Company heldStatusAccountsShare classShares% of class% of capitalTotal % of capitalAs of
CUMULUS NEUROSCIENCE LIMITED ▼openregistry-gb-NI628481ActiveGROUPSERIES A125,8621.50%0.50%1.00%2025-09-12
SERIES A225,6602.18%0.50%
AMPHISTA THERAPEUTICS LIMITEDopenregistry-gb-11119959ActiveGROUPSERIES B PREFERRED157,8941.03%0.64%0.64%2025-12-06
AVIADOBIO LTD ▼openregistry-gb-12373955ActiveGROUPSERIES A PREFERRED324,0720.60%0.36%0.57%2025-12-19
SERIES SEED PREFERRED150,0001.25%0.17%
SERIES B PREFERRED35,7650.23%0.04%
LOQUS23 THERAPEUTICS LIMITEDopenregistry-gb-11914774ActiveSMALLSERIES SEED-2 EXTENSION PREFERRED107,2602026-03-28
ORDINARY21,000
SERIES A PREFERRED171,602
SERIES SEED EXTENSION PREFERRED418,000
ASTRONAUTX LIMITEDopenregistry-gb-11919384ActiveGROUPORDINARY20,4002026-03-31
SERIES A-1 PREFERRED195,000
SERIES SEED PREFERRED138,000
SERIES A-2 PREFERRED277,406
DDF CHEMCO LIMITEDopenregistry-gb-10346052ORDINARY6,663,8462021-08-08
ALCHEMAB THERAPEUTICS LTDopenregistry-gb-12156844ActiveMEDIUMORDINARY45,9402025-11-28
SERIES A-1 PREFERRED495,714
SERIES A-3 PREFERRED69,378
HARNESS THERAPEUTICS LIMITEDopenregistry-gb-11532498ActiveSMALLORDINARY1302024-08-21
PREFERRED258

Ownership structure below these holdings

2 further companies sit beneath this entity’s direct holdings, across 2 layers. Each is linked to its Companies House profile.

Related company owners

Corporate shareholders that hold shares in the same UK companies as DDF PARALLEL LLP:

Other corporate shareholders of comparable size registered in UNITED KINGDOM:

Need the registered office, SIC code, accounts and filing history for DDF PARALLEL LLP? Open its Companies House profile at https://openregistry.sophymarine.com/insights/gb/OC416321-ddf-parallel-llp.

▼ marks a holding that itself holds shares in further companies, so ownership continues below it.

“% of capital” is the entity’s share of issued capital by nominal value, the correct basis when a company has multiple share classes.

Figures are as filed on each company’s most recent confirmation statement; the “As of” column gives that statement date. Source: Companies House Free Company Data and CS01 confirmation statements. Official record: find-and-update.company-information.service.gov.uk.