JANUS HENDERSON GROUP PLC

CIK 0001274173

8 SPACs with a current declared position, filed between May 10, 2021 and Aug 13, 2026. 1 of them was re-affirmed in the last 12 months. The rest are the filer’s last word on a position, not proof it is still held: an amendment is only required on a material change, so a fund that sells below 5% may never file again.

Filed under 4 earlier names

Janus Henderson Group Ltc. · JANUS HENDERSON GROUP PLC · HENDERSON GROUP PLC · HHG PLCEDGAR’s own former-name record for CIK 0001274173. The page did not move when the filer renamed, because the identity is the CIK and the URL is a label it owns.

SPACs declared

every position whose latest statement stands — the record

Re-affirmed in 12 months

filed inside 365 days — what a reader means by "owns"

Still live

positions in SPACs still searching or in an announced deal

Median stake

5.3%

6.2% across the re-affirmed positions · max 17.3%

8 passive (13G)22 superseded statements on file

Positions

one row per SPAC — every figure read from the accession in the Source column

8 of 8 shown · 7 positions have not been amended in over a year

	SPAC			Voting	Dispositive			Source
AGC	Altimeter Growth Corp.2 reporting persons on this schedule	17.3%	8,883,832	0 / 8,883,832	0 / 8,883,832	Closed (deSPAC)	May 10, 2021Stale	SC 13G0001274173-21-000100
VSPR	Vesper Healthcare Acquisition Corp.2 reporting persons on this schedule	10.3%	12,941,133	0 / 12,941,133	0 / 12,941,133	Closed (deSPAC)	Nov 14, 2024Stale	SC 13G/A0001274173-24-000105 8 earlier statements
AHPA	Avista Public Acquisition Corp. II	7.4%	8,819,762	0 / 8,819,762	0 / 8,819,762	Closed (deSPAC)	Nov 14, 2024Stale	SC 13G/A0001274173-24-000146 2 earlier statements
JATT	JATT II Acquisition	6.2%	500,000	not stated	not stated	Deal announced	Aug 13, 2026Fresh	SC 13G0001274173-26-000189
MIR	GS Acquisition Holdings Corp II2 reporting persons on this schedule	4.3%	9,399,185	0 / 9,399,185	0 / 9,399,185	Closed (deSPAC)	Feb 12, 2024Stale	SC 13G/A0001274173-24-000018 4 earlier statements
NOVS	Novus Capital Corp2 reporting persons on this schedule	1.4%	1,415,972	0 / 1,415,972	0 / 1,415,972	Closed (deSPAC)	Feb 10, 2022Stale	SC 13G/A0001274173-22-000011 4 earlier statements
DMYT	dMY Technology Group, Inc.2 reporting persons on this schedule	0.0%	342	0 / 342	0 / 342	Closed (deSPAC)	Feb 9, 2023Stale	SC 13G/A0001274173-23-000033 2 earlier statements
MSDA	MSD ACQUISITION CORP. / NEW2 reporting persons on this schedule	0.0%	341	0 / 341	0 / 341	Liquidated	Feb 9, 2023Stale	SC 13G/A0001274173-23-000030 2 earlier statements

22 superseded statements (newest 12 shown)

An amendment replaces a stake as current; it never erases the record of it. These are the earlier statements, each with the accession that replaced it — kept because “what did this filer say in 2022” is a different question from “what does it say now”, and only the second one has an answer above.

VSPR Vesper Healthcare Acquisition Corp.10.6% · SC 13G/A Apr 5, 2024replaced Nov 14, 2024 by 0001274173-24-000105
VSPR Vesper Healthcare Acquisition Corp.9.6% · SC 13G/A Feb 13, 2024replaced Apr 5, 2024 by 0001274173-24-000065
AHPA Avista Public Acquisition Corp. II6.7% · SC 13G/A Feb 13, 2024replaced Nov 14, 2024 by 0001274173-24-000146
VSPR Vesper Healthcare Acquisition Corp.10.1% · SC 13G/A Nov 9, 2023replaced Feb 13, 2024 by 0001274173-24-000045
AHPA Avista Public Acquisition Corp. II5.7% · SC 13G Feb 13, 2023replaced Feb 13, 2024 by 0001274173-24-000036
VSPR Vesper Healthcare Acquisition Corp.7.2% · SC 13G Feb 13, 2023replaced Nov 9, 2023 by 0001274173-23-000092
MIR GS Acquisition Holdings Corp II5.8% · SC 13G/A Feb 10, 2023replaced Feb 12, 2024 by 0001274173-24-000018
MIR GS Acquisition Holdings Corp II6.0% · SC 13G Dec 22, 2022replaced Feb 10, 2023 by 0001274173-23-000064
MSDA MSD ACQUISITION CORP. / NEW7.4% · SC 13G Feb 11, 2022replaced Feb 9, 2023 by 0001274173-23-000030
DMYT dMY Technology Group, Inc.7.1% · SC 13G Feb 11, 2022replaced Feb 9, 2023 by 0001274173-23-000033
NOVS Novus Capital Corp10.3% · SC 13G/A Feb 11, 2021replaced Feb 10, 2022 by 0001274173-22-000011
NOVS Novus Capital Corp10.1% · SC 13G Nov 10, 2020replaced Feb 11, 2021 by 0001274173-21-000062

Reporting persons on this filer's schedules

one filer, several names — collapsed once, shown in full

A joint Schedule 13 names every person who beneficially owns the shares — the management company, the funds it advises, the general partner and often the individual who controls all three. They report the same shares. Counting them separately would publish this filer’s footprint two or three times over, so they are counted once, under CIK 0001274173. This filer has named 6 of them across the schedules in the table above:

Janus Henderson Contrarian Fund 84-1521705
Janus Henderson Forty Fund 84-1552741
Janus Henderson Group
Janus Henderson Group plc EIN #00-0000000
Janus Henderson Triton Fund 01-0825912
Janus Henderson Venture Fund 84-0964425

Appears alongside

other filers with a current declared position in the same SPACs

Co-occurrence in the disclosure record, and nothing more. It is not evidence of a group, an agreement or acting in concert — filers who act as a group say so on the cover page and file a 13D. Two arbitrage funds above 5% in the same shell is the ordinary shape of this market. The second number restricts both sides to statements filed in the last 12 months, because a 2021 stake beside a 2026 one is two facts about two different years.

Every percentage above is the one printed on the cover page of the filing cited beside it — a percentage of the shares outstanding on that date. A SPAC’s float collapses at each redemption, so two of these percentages are percentages of two different companies and they do not add. Rows are one per SPAC: where a joint schedule names several reporting persons, the largest single figure is shown rather than their sum, because a manager and the funds it advises beneficially own the same shares. Nothing on this page is derived from a 13F, a vendor holdings file or a press release. See how this is built.