1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share (ONCH)

Q: What does CUSIP G6757R105 represent in this 13F holders report?

CUSIP G6757R105 is the security identifier for ONCH - 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held ONCH - 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share in Q2 2026?

3 institutional investors reported ONCH - 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share for Q2 2026. Use the holders table for investor-level position and value details.

CUSIP: G6757R105

Q2 2026 13F Holders as of 30 Jun 2026

Security type / class: Equity / Class A ordinary shares, par value $0.0001 per share
Total 13F shares: 334,965
Total 13F value: $3,427,807
Share change: +14,712
SEC-reported price per share: $10.25
Number of holders: 3
Value change: +$154,251
Number of buys: 1
Number of sells: 1
Shares outstanding: 17,157,238

Security key

G6757R105

Report period

Q2 2026

Institutions

Top holders

ONCH full security history Ownership snapshot Full 13F holder table Previous quarter: Q1 2026 1RT Acquisition Corp. SEC filings 1RT Acquisition Corp. company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP G6757R105

Previous quarter: Q1 2026

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025

Ownership snapshot

Top reported holders of ONCH - 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share (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

1RT Acquisition Sponsor LLC

Disclosed value leader

METEORA CAPITAL, LLC

Comparable rows

15/15

Latest evidence

31 Mar 2026

3/4/5 13D/G 13F Lead comparable stake: 20% 13D/G row: 1RT Acquisition Sponsor LLC Showing 1-6 of 15 holder rows.

Quick read

1RT Acquisition Sponsor LLC leads the comparable SEC ownership view at 20%.

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 1RT Acquisition Sponsor LLC's linked filing trail.

Comparable ownership Top 5

1RT Acquisition Sponsor LLC 20%

METEORA CAPITAL, LLC 9.9%

Point72 Asset Management, L.P. 8.7%

RP Investment Advisors LP 6.3%

Linden Capital L.P. 5.9%

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
1RT Acquisition Sponsor LLC	3/4/5 13D/G 10%+ Owner 3/4/5 13D/G	20% from 13D/G	— 1,500,000 shares	—	01 Jul 2025
METEORA CAPITAL, LLC	13F 13D/G Company 13F 13D/G	9.9% from 13D/G	$17,525,680 2,255,673 shares mixed-class rows	—	31 Mar 2026
Point72 Asset Management, L.P.	13F 13D/G Company 13F 13D/G	8.7% from 13D/G	$15,420,450 1,500,000 shares	—	31 Mar 2026
RP Investment Advisors LP	13D/G 13D/G	6.3%	$10,960,387 1,080,906 shares	+$2,184,217	31 Mar 2026
Linden Capital L.P.	13D/G Linden Advisors LP 13D/G	5.9%	$10,303,020 1,010,100 shares	$0	05 Mar 2026
Jain Global LLC	13D/G 13F Company 13D/G 13F	5.2%	$9,345,466 894,303 shares	$0	30 Sep 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 Q2 2026

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

Institutions

334,965

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 Q2 2026 vs Q1 2026 Across Filers

Q1 2026 holders

Q2 2026 holders

Holder diff

-54

Investor	Q1 2026 Shares	Q2 2026 Shares	Share Diff	Share Chg %	Q1 2026 value	Q2 2026 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend