SEC ownership of Activate Energy Acquisition Corp.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002083689.

Comparable stake leader

Adage Capital Management, L.P.

Disclosed value leader

ADAGE CAPITAL PARTNERS GP, L.L.C.

Comparable rows

35/50

Latest evidence

31 Mar 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
35 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
Adage Capital Management, L.P.
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
31 Mar 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0002083689
Issuer location
Grand Cayman

Ownership snapshot

Top shareholders of Activate Energy Acquisition Corp. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Adage Capital Management,...
Disclosed value leader
ADAGE CAPITAL PARTNERS GP...
Comparable rows
35/50
Latest evidence
31 Mar 2026
13D/G 13F 3/4/5 Lead comparable stake: 7.6% 15 rows are not safely comparable across share classes. 13D/G row: Adage Capital Management, L.P. Showing 1-8 of 50 holder rows.

Quick read

Adage Capital Management, L.P. leads the comparable SEC ownership view at 7.6%.

35 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Adage Capital Management, L.P.'s linked filing trail.
Comparable ownership Top 5
Adage Capital Management, L.P. 7.6%
GOLDMAN SACHS GROUP INC 7.3%
KRYGER CAPITAL Ltd 6%
LMR Partners LLP 5.3%
Kryger Capital LLC 3.9%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Adage Capital Management, L.P.
13D/G
7.6%
$18,018,000
1,800,000 shares
$0 31 Dec 2025
GOLDMAN SACHS GROUP INC
13D/G
THE GOLDMAN SACHS GROUP, INC.
7.3%
$17,109,562
1,729,986 shares
$0 31 Mar 2026
KRYGER CAPITAL Ltd
13D/G
6%
$12,512,500
1,250,000 shares
$0 31 Dec 2025
LMR Partners LLP
13F
Company
13F
5.3%
$11,088,000
1,100,000 shares
31 Mar 2026
Kryger Capital LLC
13F
Company
13F
3.9%
$9,094,577
919,573 shares
31 Mar 2026
OMERS ADMINISTRATION Corp
13F
Company
13F
1.9%
$4,032,000
400,000 shares
31 Mar 2026
TWO SIGMA INVESTMENTS, LP
13F
Company
13F
1.5%
$3,585,125
362,500 shares
31 Mar 2026
BERKLEY W R CORP
13F
Company
13F
1.5%
$3,432,186
347,036 shares
31 Mar 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 10 Aug 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-5 of 5 reporting-owner rows connected to Activate Energy Acquisition Corp.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
5
Largest Forms 3/4/5 holder
David Fain Wood
Net 12M change
$0
Latest report
04 Mar 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
David Fain Wood Director Mixed 05 Dec 2025
Jason Spittlehouse Director Mixed 05 Dec 2025
Thomas Joseph Fontaine Chief Executive Officer, Director, 10%+ Owner Mixed 05 Dec 2025
Paul Derek Moore Director Mixed 04 Mar 2026
Brian Keith Byer Director Mixed 04 Mar 2026

Recent insider transactions for Activate Energy Acquisition Corp.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Thomas Joseph Fontaine AEAQ Class B ordinary shares, par value $0.0001 per share 0 7,666,667 05 Dec 2025 See Footnote
* marks a reported price that did not pass the local price check.
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .