ONCH · 1RT Acquisition Corp. · Holdings

$10.32 At close · Oct 9

Market Cap

$223.06M

21.56M

Volume · Oct 7 2204 Avg daily vol (3M) 88.68K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

Quarter:

Holders: 75

Total Value: $161,472,809

Total Shares: 18,858,674

Showing 1–100 of 117 holdings by value · page 1 of 2

Institutional Ownership Trend

4 quarters

Holder Concentration

Across 75 13F filers · Δ vs Mar 31, 2026

Top Holder

10.8%

−0.1 pts

Top 5

37.2%

−0.5 pts

Top 10

56.6%

−0.7 pts

HHI

437

Broadly held−7

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +1

Institutional value: +2.2%

Shares held: +1.6%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Large Verition Fund Management LLC	+184,123	589,808
Mid Polar Asset Management Partners Inc.	+129,300	629,300
Large Schonfeld Strategic Advisors LLC	+90,107	110,107
Mid GLAZER CAPITAL, LLC	+88,000	163,000
Large Clear Street Group Inc.	+41,164	232,628

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mid Saba Capital Management, L.P.	−100,001	624,929
Mid Virtu Financial LLC	−56,677	18,480
Mid METEORA CAPITAL, LLC	−36,574	2,219,099
Mid WOLVERINE ASSET MANAGEMENT LLC	−33,730	120,518
Small RLH Capital LLC	−25,250	49,959

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)	Open
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	30,188	$197,783
Small Bulldog Investors, LLP	10,000	$102,500

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)	Open
Small SCOGGIN MANAGEMENT LP	20,000	$205,600

Filter: New 2 Increased 13 Reduced 14 Sold out 1 Unchanged 46

Showing 100 of 117

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

METEORA CAPITAL, LLC

$17,421,853

10.79%

1,699,693

Point72 Asset Management, L.P. ONCHU

$15,510,000

9.61%

1,500,000

Linden Advisors LP

$10,353,525

6.41%

1,010,100

Jain Global LLC

$9,135,015

5.66%

891,221

Governors Lane LP

$7,687,500

4.76%

750,000

LMR Partners LLP ONCHU

$7,238,000

4.48%

700,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
LMR PARTNERS (DIFC) Ltd	700,000	$7,238,000	100.0%	Sole

J. Goldman & Co LP

$7,175,000

4.44%

700,000

MMCAP International Inc. SPC

$6,150,000

3.81%

600,000

Verition Fund Management LLC

$5,425,919

3.36%

529,358

Polar Asset Management Partners Inc.

$5,125,000

3.17%

500,000

Radcliffe Capital Management, L.P.

$4,363,753

2.70%

425,732

Saba Capital Management, L.P.

$4,355,553

2.70%

424,932

First Trust Capital Management L.P.

$3,074,959

1.90%

299,996

MILLENNIUM MANAGEMENT LLC

$3,005,300

1.86%

293,200

WHITEBOX ADVISORS LLC

$2,665,000

1.65%

260,000

Ghisallo Capital Management LLC ONCHU

$2,585,000

1.60%

250,000

TENOR CAPITAL MANAGEMENT Co., L.P.

$2,562,500

1.59%

250,000

MOORE CAPITAL MANAGEMENT, LP

$2,562,500

1.59%

250,000

Context Capital Management, LLC

$2,562,500

1.59%

250,000

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

$2,562,500

1.59%

250,000

HBK INVESTMENTS L P

$2,555,366

1.58%

249,304

Mint Tower Capital Management B.V.

$2,050,000

1.27%

200,000

CITADEL ADVISORS LLC ONCHU

$1,785,490

1.11%

172,678

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	2,977	$30,782	1.7%	Defined
Held directly	169,701	$1,754,708	98.3%	Defined

GLAZER CAPITAL, LLC

$1,670,750

1.03%

163,000

SONA ASSET MANAGEMENT (US) LLC

$1,652,300

1.02%

161,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SONA ASSET MANAGEMENT (UK) LLP	161,200	$1,652,300	100.0%	Other

Periscope Capital Inc.

$1,578,110

0.98%

153,962

TWO SIGMA INVESTMENTS, LP

$1,543,896

0.96%

150,624

Clear Street Group Inc.

$1,490,473

0.92%

145,412

Cable Car Capital, LP

$1,281,250

0.79%

125,000

WOLVERINE ASSET MANAGEMENT LLC

$1,235,309

0.77%

120,518

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	120,518	$1,235,309	100.0%	Defined

Shaolin Capital Management LLC

$1,226,914

0.76%

119,699

Schonfeld Strategic Advisors LLC

$1,128,596

0.70%

110,107

DLD Asset Management, LP

$1,120,642

0.69%

109,331

TORONTO DOMINION BANK ONCHU

$1,059,208

0.66%

102,438

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	102,438	$1,059,208	100.0%	Defined

ARISTEIA CAPITAL, L.L.C.

$1,025,000

0.63%

100,000

O'Connor Alternative Investments LLC

$1,025,000

0.63%

100,000

PICTON MAHONEY ASSET MANAGEMENT

$1,025,000

0.63%

100,000

K2 PRINCIPAL FUND, L.P.

$1,025,000

0.63%

100,000

Magnetar Financial LLC

$1,025,000

0.63%

100,000

RIVERNORTH CAPITAL MANAGEMENT, LLC

$902,328

0.56%

88,032

PEAK6 LLC ONCHU

$775,500

0.48%

75,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PEAK6 Investments LLC joint	75,000	$775,500	100.0%	Defined

BERKLEY W R CORP

$762,764

0.47%

74,416

AQR Arbitrage LLC

$753,733

0.47%

73,535

Kamunting Street Capital Management, L.P. ONCHU

$620,400

0.38%

60,000

Centiva Capital, LP

$615,000

0.38%

60,000

JPMORGAN CHASE & CO

$544,808

0.34%

53,152

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	53,152	$544,808	100.0%	Defined

JPMORGAN CHASE & CO ONCHU

$517,000

0.32%

50,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	50,000	$517,000	100.0%	Defined

OMERS ADMINISTRATION Corp ONCHU

$516,906

0.32%

49,991

READYSTATE ASSET MANAGEMENT LP

$512,500

0.32%

50,000

Quarry LP

$512,079

0.32%

49,959

RLH Capital LLC

$512,079

0.32%

49,959

GRITSTONE ASSET MANAGEMENT LLC

$506,688

0.31%

49,433

HRT FINANCIAL LP ONCHU

$505,026

0.31%

48,842

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS

$489,304

0.30%

47,737

BOOTHBAY FUND MANAGEMENT, LLC

$420,967

0.26%

41,070

Clear Street Group Inc. ONCHU

$419,628

0.26%

40,583

MIZUHO SECURITIES USA LLC

$381,587

0.24%

37,228

Westchester Capital Management, LLC ONCHU

$318,678

0.20%

30,820

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	252	$2,605	0.8%	Sole
Virtus Investment Advisers, LLC	28,653	$296,272	93.0%	Other
Held directly	1,915	$19,801	6.2%	Sole

D. E. Shaw & Co., Inc.

$307,008

0.19%

29,952

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	29,952	$307,008	100.0%	Defined

BNP PARIBAS ARBITRAGE, SA

$278,472

0.17%

27,168

Davidson Kempner Capital Management LP

$256,250

0.16%

25,000

Hudson Bay Capital Management LP

$256,250

0.16%

25,000

Alberta Investment Management Corp

$256,250

0.16%

25,000

Yakira Capital Management, Inc. ONCHU

$253,174

0.16%

24,485

SUSQUEHANNA INTERNATIONAL GROUP, LLP ONCHU

$197,783

0.12%

19,128

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	19,128	$197,783	100.0%	Other

Virtu Financial LLC

$189,420

0.12%

18,480

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	18,480	$189,420	100.0%	Defined

TORONTO DOMINION BANK

$154,108

0.10%

15,035

Parallax Volatility Advisers, L.P. ONCHU

$126,013

0.08%

12,187

READYSTATE ASSET MANAGEMENT LP ONCHU

$103,400

0.06%

10,000

Walleye Capital LLC ONCHU

$103,400

0.06%

10,000

Bulldog Investors, LLP

$102,500

0.06%

10,000

TIG Advisors, LLC

$102,500

0.06%

10,000

J. Goldman & Co LP

$100,713

0.06%

175,000

PenderFund Capital Management Ltd.

$71,750

0.04%

7,000

UBS Group AG

$1,527

0.00%

149

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	149	$1,527	100.0%	Defined

MORGAN STANLEY

$635

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	62	$635	100.0%	Defined

Context Capital Management, LLC ONCHW

—

62,500

TENOR CAPITAL MANAGEMENT Co., L.P. ONCHW

—

62,500

Parallax Volatility Advisers, L.P. ONCHW

—

35,165

Verition Fund Management LLC ONCHW

—

60,450

MMCAP International Inc. SPC ONCHW

—

150,000

DLD Asset Management, LP ONCHW

—

27,209

RIVERNORTH CAPITAL MANAGEMENT, LLC ONCHW

—

22,008

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND ONCHW

—

62,500

Clear Street Group Inc. ONCHW

—

46,633

MOORE CAPITAL MANAGEMENT, LP ONCHW

—

62,500

Kepos Capital LP ONCHW

—

5,875

Magnetar Financial LLC ONCHW

—

25,000

Radcliffe Capital Management, L.P. ONCHW

—

14,830

HGC Investment Management Inc. ONCHW

—

50,000

GRITSTONE ASSET MANAGEMENT LLC ONCHW

—

12,358

Shaolin Capital Management LLC ONCHW

—

79,140

HBK INVESTMENTS L P ONCHW

—

62,501

PICTON MAHONEY ASSET MANAGEMENT ONCHW

—

25,000

SUSQUEHANNA INTERNATIONAL GROUP, LLP ONCHW

—

11,060

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	11,060	$0	—	Other

Linden Advisors LP ONCHW

—

127,524

MILLENNIUM MANAGEMENT LLC ONCHW

—

25,000

Alberta Investment Management Corp ONCHW

—

6,250

K2 PRINCIPAL FUND, L.P. ONCHW

—

25,000

UBS Group AG ONCHW

—

327

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	327	$0	—	Defined

Key facts CIK 2054272 CUSIP G6757R105 13F (30d) 1 filings 1 filers