How many institutions held ADACU - American Drive Acquisition Co - Class A Ordinary Shares in Q1 2026?

26 institutional investors reported ADACU - American Drive Acquisition Co - Class A Ordinary Shares for Q1 2026. Use the holders table for investor-level position and value details.

American Drive Acquisition Co - Class A Ordinary Shares (ADACU)

Q: What does CUSIP G0R91M121 represent in this 13F holders report?

CUSIP G0R91M121 is the security identifier for ADACU - American Drive Acquisition Co - Class A Ordinary Shares used to aggregate holder disclosures.

CUSIP: G0R91M121

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / Class A Ordinary Shares
Total 13F shares: 4,670,275
Total 13F value: $46,623,849
Share change: -16,752,373
SEC-reported price per share: $9.98
Number of holders: 26
Value change: -$166,962,016
Number of buys: 7
Number of sells: 43
Shares outstanding: 22,727,273

Security key

G0R91M121

Report period

Q1 2026

Institutions

Top holders

ADACU full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Previous quarter: Q4 2025 American Drive Acquisition Co SEC filings American Drive Acquisition Co company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP G0R91M121

Newer quarter: Q2 2026 Previous quarter: Q4 2025

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025

Ownership snapshot

Top reported holders of ADACU - American Drive Acquisition Co - Class A Ordinary Shares (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

Petit Monts LLC

Disclosed value leader

Adage Capital Management,...

Comparable rows

15/15

Latest evidence

06 Feb 2026

3/4/5 13D/G 13F Lead comparable stake: 25% 13D/G row: Petit Monts LLC Showing 1-6 of 15 holder rows.

Quick read

Petit Monts LLC leads the comparable SEC ownership view at 25%.

15 of 15 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 Petit Monts LLC's linked filing trail.

Comparable ownership Top 5

Petit Monts LLC 25%

TENOR CAPITAL MANAGEMENT Co., L.P. 6.3%

Adage Capital Management, L.P. 5.4%

MMCAP International Inc. SPC 4.4%

ADAGE CAPITAL PARTNERS GP, L.L.C. 5.5%

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

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Petit Monts LLC	3/4/5 13D/G 10%+ Owner 3/4/5 13D/G	25% from 13D/G	— 5,650,000 shares	—	06 Feb 2026
TENOR CAPITAL MANAGEMENT Co., L.P.	13F 13D/G Company · Tenor Capital Management Company, L.P. 13F 13D/G	6.3% from 13D/G	$12,462,500 1,250,000 shares	—	31 Dec 2025
Adage Capital Management, L.P.	13D/G 13D/G	5.4%	$12,500,000 1,250,000 shares	$0	31 Dec 2025
MMCAP International Inc. SPC	13D/G 13F Company 13D/G 13F	4.4%	$10,000,000 1,000,000 shares	$0	31 Dec 2025
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F Company 13F	5.5%	$12,462,500 1,250,000 shares	—	31 Dec 2025
AQR Arbitrage LLC	13F Company 13F	4.7%	$10,629,400 1,064,004 shares	—	31 Dec 2025

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.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

4,670,275

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders

Q1 2026 holders

Holder diff

-40

Investor	Q4 2025 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q4 2025 value	Q1 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend