1RT Acquisition Corp. - Class A Common Stock (ONCHU) Institutional Ownership

13F Institutional Holders and Ownership History from Q3 2025 to Q4 2025

Type / Class
Equity / Class A Common Stock
Symbol
ONCHU on Nasdaq
Shares outstanding
15,014,014
Price per share
$10.40
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
7,093,028
Total reported value
$74,713,711
% of total 13F portfolios
0%
Share change
+7,021,227
Value change
+$73,956,213
Number of holders
43
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of 1RT Acquisition Corp. - Class A Common Stock (ONCHU) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Point72 Asset Management, L.P. 8.7% 1,500,000 Point72 Asset Management, L.P. 03 Jul 2025
Harraden Circle Investments, LLC 10% 1,499,900 Harraden Circle Investments, LLC 02 Jul 2025

As of 30 Sep 2025, 43 institutional investors reported holding 7,093,028 shares of 1RT Acquisition Corp. - Class A Common Stock (ONCHU). This represents 47% of the company’s total 15,014,014 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of 1RT Acquisition Corp. - Class A Common Stock (ONCHU) together control 45% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Point72 Asset Management, L.P. 10% 1,500,000 0.03% $15,825,000
Jain Global LLC 6% 894,303 0.12% $9,381,238
LMR Partners LLP 4.7% 700,000 0.1% $7,385,000
MMCAP International Inc. SPC 4% 600,000 0.74% $6,330,000
Polar Asset Management Partners Inc. 3.3% 500,000 0.11% $5,275,000
MILLENNIUM MANAGEMENT LLC 2.2% 329,000 0% $3,470,950
Ghisallo Capital Management LLC 1.7% 250,000 0.09% $2,622,500
MOORE CAPITAL MANAGEMENT, LP 1.7% 250,000 0.05% $2,637,500
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 1.7% 250,000 0% $2,622,500
HGC Investment Management Inc. 1.3% 200,000 0.51% $2,110,000
Mint Tower Capital Management B.V. 1.3% 200,000 0.26% $2,110,000
CITADEL ADVISORS LLC 1.3% 200,000 0% $2,098,000
Cable Car Capital, LP 0.83% 125,000 0.57% $1,318,750
Wealthspring Capital LLC 0.67% 100,000 0.25% $1,055,000
Magnetar Financial LLC 0.67% 100,000 0.01% $1,049,000
DLD Asset Management, LP 0.57% 85,000 0.12% $896,750
TORONTO DOMINION BANK 0.53% 80,000 0% $844,000
PEAK6 LLC 0.5% 75,000 0.02% $791,250
Clear Street Group Inc. 0.48% 71,801 0% 0% $757,501
Quarry LP 0.41% 61,320 0.16% $646,926
Parallax Volatility Advisers, L.P. 0.38% 56,319 0.02% $594,165
HRT FINANCIAL LP 0.35% 53,106 0% $557,000
JPMORGAN CHASE & CO 0.33% 50,000 0% $524,500
FIFTH LANE CAPITAL, LP 0.33% 50,000 0.53% $524,500
RIVERNORTH CAPITAL MANAGEMENT, LLC 0.29% 44,021 0.03% $464,422

Institutional Holders of 1RT Acquisition Corp. - Class A Common Stock (ONCHU) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 10,000 $104,000 -$429,000 $10.40 1
2025 Q3 7,093,028 $74,713,711 +$73,956,213 $10.55 43