SEC ownership of Tailwind 2.0 Acquisition Corp.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002076616.

Comparable stake leader

TAILWIND 2.0 SPONSOR LLC

Disclosed value leader

ADAGE CAPITAL PARTNERS GP, L.L.C.

Comparable rows

13/50

Latest evidence

31 Mar 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
13 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
TAILWIND 2.0 SPONSOR LLC
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
0002076616
Issuer location
Greenwich, CT

Ownership snapshot

Top shareholders of Tailwind 2.0 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
TAILWIND 2.0 SPONSOR LLC
Disclosed value leader
ADAGE CAPITAL PARTNERS GP...
Comparable rows
13/50
Latest evidence
31 Mar 2026
3/4/5 13D/G 13F Lead comparable stake: 25% 37 rows are not safely comparable across share classes. 13D/G row: TAILWIND 2.0 SPONSOR LLC Showing 1-8 of 50 holder rows.

Quick read

TAILWIND 2.0 SPONSOR LLC leads the comparable SEC ownership view at 25%.

13 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 TAILWIND 2.0 SPONSOR LLC's linked filing trail.
Comparable ownership Top 5
TAILWIND 2.0 SPONSOR LLC 25%
Adage Capital Management, L.P. 7.6%
D. E. Shaw & Co., Inc. 4.7%
First Trust Capital Management L.P. 2.2%
TWO SIGMA INVESTMENTS, LP 1.5%

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
TAILWIND 2.0 SPONSOR LLC
3/4/5 13D/G
10%+ Owner
25%
from 13D/G
372,500 shares
10 Nov 2025
Adage Capital Management, L.P.
13D/G
7.6%
$13,324,500
1,350,000 shares
$0 31 Dec 2025
D. E. Shaw & Co., Inc.
13F
Company
13F
4.7%
$8,374,450
842,500 shares
31 Mar 2026
First Trust Capital Management L.P.
13F
Company
13F
2.2%
$3,968,000
400,000 shares
31 Mar 2026
TWO SIGMA INVESTMENTS, LP
13F
Company
13F
1.5%
$2,697,000
271,875 shares
31 Mar 2026
SONA ASSET MANAGEMENT (US) LLC
13F
Company
13F
1.5%
$2,659,552
268,100 shares
31 Mar 2026
Karpus Management, Inc.
13F
Company
13F
1%
$1,756,693
177,086 shares
31 Mar 2026
Logan Stone Capital, LLC
13F
Company
13F
0.59%
$1,047,483
105,593 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 30 Jun 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 1-9 of 9 reporting-owner rows connected to Tailwind 2.0 Acquisition Corp.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
9
Largest Forms 3/4/5 holder
Thomas Barnaby Stadlen
Net 12M change
$0
Latest report
10 Nov 2025
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Thomas Barnaby Stadlen Director Mixed 06 Nov 2025
Ralph Alexander Director Mixed 06 Nov 2025
TAILWIND 2.0 SPONSOR LLC 10%+ Owner Mixed 10 Nov 2025
Alan Sheriff Director Mixed 06 Nov 2025
Eliot Chase Cotton General Counsel Mixed 06 Nov 2025
Sharo M. Atmeh Chief Executive Officer, Director Mixed 06 Nov 2025
Evan Marc Caron Director Mixed 06 Nov 2025
Andreas Douglas Penna Director Mixed 06 Nov 2025
Michael Ralph Delucia Chief Financial Officer Mixed 06 Nov 2025

Recent insider transactions for Tailwind 2.0 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
Tailwind 2.0 Sponsor Llc TDWD Class A Ordinary Shares Purchase 372,500 372,500 10 Nov 2025 Direct
* marks a reported price that did not pass the local price check.
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