SDHI · Siddhi Acquisition Corp (Cayman Islands) · Holdings

$10.57 +0.01 (+0.09%) At close · Oct 26

Market Cap

$367.89M

34.84M

Volume · Oct 26 8265 Avg daily vol (3M) 73.71K

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 → See every holder of SDHI: 13F, 13D and 13G, insiders and funds →

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 58

Total Value: $284,099,785

Total Shares: 52,963,130

Institutional Ownership Trend

6 quarters

Holder Concentration

Across 58 13F filers

Top Holder

6.4%

of institutional value

Top 5

26.9%

of institutional value

Top 10

46.5%

of institutional value

HHI

328

Broadly held

Who Holds SDHI

Last 6 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 58 filers, like-for-like change +2.5%; actively managed books +2.7%; index-like books -16.8%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	69.9%	33	+2.8%	1	1
Exempt adviser	2.1%	2	0.0%	0	0
Adviser	4.6%	4	-10.7%	0	0
Bank	1.2%	3	+6.8%	1	0
Insurer	1.7%	1	+53.8%	0	0
Non-US	14.7%	5	0.0%	0	0
Holding company	0.8%	2	0.0%	0	0
Broker-dealer	0.0%	0	—	0	0
Unknown	5.0%	8	+7.9%	2	0

Style	Share	Filers	Change	New	Exited
Index-like	1.2%	4	-16.8%	0	0
Systematic-like	11.2%	6	-3.8%	0	1
Concentrated	11.8%	5	+4.6%	1	0
Diversified active	75.7%	43	+3.5%	3	0
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	5.8%	7	+26.4%	0	0
Medium turnover	56.9%	23	+2.4%	3	0
High turnover	35.9%	26	-0.3%	1	1
Unknown	1.5%	2	-0.2%	0	0
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	46.4%	25	-1.3%	0	0
Medium horizon	14.7%	6	+2.6%	1	0
Long horizon	20.3%	15	+7.3%	2	0
Unknown	18.6%	12	+7.3%	1	1
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	14.3%	13	+11.1%	2	0
$1B to $10B	55.8%	25	-0.6%	1	1
$10B to $100B	22.7%	11	+5.8%	0	0
$100B or more	7.3%	9	+0.7%	1	0
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Pooled investment vehicles	60.2%	27	-0.1%	0	1
Registered funds and BDCs	9.7%	6	+25.8%	1	0
Unknown	30.1%	25	+1.7%	3	0

Private funds	Share	Filers	Change	New	Exited
Hedge funds	62.9%	28	-0.1%	0	1
Private equity funds	2.5%	1	0.0%	0	0
Other private funds	3.1%	2	+85.6%	0	0
Private funds, type not stated	0.6%	1	0.0%	0	0
No private funds	3.0%	3	+23.9%	1	0
Unknown	28.0%	23	+1.8%	3	0

Location	Share	Filers	Change	New	Exited
United States	78.4%	47	+3.1%	3	1
Outside the US	21.6%	11	+0.2%	1	0

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

51 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

5.88% of filers hold it in their top 10

Mar 31, 2026: 3

Holders above 5%

median weight 0.066%

Mar 31, 2026: 0

Crowding

—

the issuer has more than one class of common stock, so its count is the total across classes

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

the issuer has more than one class of common stock, so its count is the total across classes

Top 10 holders

47.5%

of 13F shares, Herfindahl 0.034

Active holders

+5.0%

like-for-like share change of active filers

5% stakes on record

0 13D, 3 13G (2 institutional, 0 passive, 1 exempt)

How long holders have held it value-weighted 4.4 quarters

Under 1 year 17.8% 1 to 3 years 82.2% 3 years or more 0.000% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$10.23

estimated per share

Mar 31, 2026: $10.19

Quarter-end price

$10.42

implied by 13F values

Estimated gain or loss

+1.8%

price against the estimated cost

Estimated at a loss

0.000%

of costed 13F value

Estimated cost covers 27.5% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies SDHI's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	KTWO K2 Capital Acquisition Corp	4	0.676
2	VNME Vendome Acquisition Corp I	5	0.570
3	ZKP Lafayette Digital Acquisition Corp. I	3	0.567
4	POLE Andretti Acquisition Corp. II	6	0.550
5	GIW GigCapital8 Corp.	4	0.535
6	NMP NMP Acquisition Corp.	3	0.507
7	TWLV Twelve Seas Investment Co III	3	0.507
8	MYX Maywood Acquisition Corp. 2	3	0.507
9	KCHV Kochav Defense Acquisition Corp.	3	0.507
10	FMAC Future Money Acquisition Corp	4	0.504

Shareholder Targets

13F filers that own its peers but not SDHI, quarter ended Jun 30, 2026

Found through its holder-overlap peers: KTWO, VNME, ZKP, POLE, GIW, NMP, TWLV, MYX, KCHV, FMAC, CHAR, APXT, LPAA, GTERA, SOUL, CRAQ, NBRG, ANSC, SZZL, SBXDF. 70 filers in all.

#	Filer	In peers	Of book	Largest peers
1	WHITEBOX ADVISORS LLC Registered adviser, Diversified active	$63,895,750 16 held	3.45%	VNME, GIW, SZZL
2	MMCAP International Inc. SPC Unknown, Diversified active	$36,868,000 4 held	3.57%	LPAA, SBXDF, POLE
3	ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active	$36,099,000 2 held	0.050%	APXT, TWLV
4	Wealthspring Capital LLC Registered adviser, Diversified active	$32,631,506 8 held	9.49%	LPAA, APXT, SZZL
5	MANGROVE PARTNERS IM, LLC Registered adviser, Diversified active	$30,160,718 9 held	2.04%	KTWO, SZZL, VNME
6	HEIGHTS CAPITAL MANAGEMENT, INC Unknown, Diversified active	$28,962,332 15 held	8.23%	KCHV, NMP, TWLV
7	RLH Capital LLC Unknown, Diversified active	$27,736,138 8 held	14.5%	SOUL, ANSC, FMAC
8	Mint Tower Capital Management B.V. Unknown, Diversified active	$23,511,706 8 held	6.01%	ZKP, GIW, CRAQ
9	Quarry LP Unknown, Diversified active	$20,122,533 7 held	3.53%	FMAC, SOUL, ANSC
10	Yakira Capital Management, Inc. Registered adviser, Diversified active	$16,081,132 4 held	5.52%	GIW, GTERA, FMAC

Fund Ownership of SDHI by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 0.00% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.00%	0.00 pp	0	0
Index ETFs	0.00%	0.00 pp	0	0
Active ETFs	0.01%	+0.01 pp	4,536	2
Active funds	5.35%	+1.25 pp	1,862,797	6
Unclassified	0.00%	0.00 pp	0	0
All registered funds	5.36%	+1.26 pp	1,867,333	8

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 33 Exempt adviser 2 Adviser 4 Bank 3 Insurer 1 Non-US 5 Holding company 2 Unknown 8

Showing 91 of 91

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Magnetar Financial LLC

$18,235,000

6.42%

1,750,000

ARISTEIA CAPITAL, L.L.C.

$17,193,000

6.05%

1,650,000

TENOR CAPITAL MANAGEMENT Co., L.P.

$14,323,321

5.04%

1,374,599

First Trust Capital Management L.P.

$13,581,000

4.78%

1,303,359

AQR Arbitrage LLC

$13,143,141

4.63%

1,261,338

HGC Investment Management Inc.

$13,025,000

4.58%

1,250,000

Westchester Capital Management, LLC

$13,016,631

4.58%

1,249,197

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	12,794	$133,313	1.0%	Sole
Virtus Investment Advisers, LLC	1,121,204	$11,682,945	89.8%	Other
Held directly	115,199	$1,200,373	9.2%	Sole

Hudson Bay Capital Management LP

$10,680,500

3.76%

1,025,000

Polar Asset Management Partners Inc.

$10,422,084

3.67%

1,000,200

BERKLEY W R CORP

$8,617,194

3.03%

826,986

Linden Advisors LP

$8,336,000

2.93%

800,000

Calamos Advisors LLC

$7,815,000

2.75%

750,000

MILLENNIUM MANAGEMENT LLC

$7,761,858

2.73%

744,900

WOLVERINE ASSET MANAGEMENT LLC

$7,758,398

2.73%

744,568

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	744,568	$7,758,398	100.0%	Defined

Shaolin Capital Management LLC

$7,623,146

2.68%

731,588

Alberta Investment Management Corp

$7,294,000

2.57%

700,000

GLAZER CAPITAL, LLC

$7,270,273

2.56%

697,723

Radcliffe Capital Management, L.P.

$7,229,781

2.54%

693,837

D. E. Shaw & Co., Inc.

$6,893,642

2.43%

661,578

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.	661,578	$6,893,642	100.0%	Defined

METEORA CAPITAL, LLC

$6,276,195

2.21%

602,322

Verition Fund Management LLC

$5,899,501

2.08%

566,171

PICTON MAHONEY ASSET MANAGEMENT

$5,210,000

1.83%

500,000

Crossingbridge Advisors, LLC

$4,793,200

1.69%

460,000

TWO SIGMA INVESTMENTS, LP

$4,330,333

1.52%

415,579

GOLDMAN SACHS GROUP INC

$4,306,158

1.52%

413,259

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

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	413,259	$4,306,158	100.0%	Defined

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS

$4,168,000

1.47%

400,000

RIVERNORTH CAPITAL MANAGEMENT, LLC

$3,695,598

1.30%

354,664

Karpus Management, Inc.

$3,370,036

1.19%

323,420

HIGHBRIDGE CAPITAL MANAGEMENT LLC

$3,369,223

1.19%

323,342

LMR Partners LLP SDHIU

$3,267,000

1.15%

300,000

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	300,000	$3,267,000	100.0%	Sole

Periscope Capital Inc.

$3,126,000

1.10%

300,000

Lineage Point Capital LP

$3,126,000

1.10%

300,000

RiverPark Advisors, LLC

$3,126,000

1.10%

300,000

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

Manager	Shares	Value (USD)	% of position	Discretion
Crossingbridge Advisors, LLC	300,000	$3,126,000	100.0%	Other

HBK INVESTMENTS L P

$3,126,000

1.10%

300,000

MOORE CAPITAL MANAGEMENT, LP

$3,126,000

1.10%

300,000

Schonfeld Strategic Advisors LLC

$2,640,928

0.93%

253,448

MIZUHO SECURITIES USA LLC

$2,208,050

0.78%

211,905

Jain Global LLC

$1,941,246

0.68%

186,300

Centiva Capital, LP

$1,901,743

0.67%

182,509

Parallax Volatility Advisers, L.P.

$1,442,128

0.51%

138,400

Clear Street Group Inc. SDHIU

$1,362,948

0.48%

125,156

TORONTO DOMINION BANK

$1,341,054

0.47%

128,700

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	128,700	$1,341,054	100.0%	Defined

SONA ASSET MANAGEMENT (US) LLC

$1,312,898

0.46%

125,998

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	125,998	$1,312,898	100.0%	Other

JPMORGAN CHASE & CO SDHIU

$1,089,000

0.38%

100,000

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	100,000	$1,089,000	100.0%	Defined

Context Capital Management, LLC

$1,042,000

0.37%

100,000

Clear Street Group Inc.

$715,312

0.25%

68,648

DLD Asset Management, LP

$583,520

0.21%

56,000

BNP PARIBAS ARBITRAGE, SA

$534,650

0.19%

51,310

StoneX Group Inc.

$520,989

0.18%

49,999

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

Manager	Shares	Value (USD)	% of position	Discretion
STONEX FINANCIAL INC.	49,999	$520,989	100.0%	Defined

JPMORGAN CHASE & CO

$519,676

0.18%

49,873

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	49,873	$519,676	100.0%	Defined

ABC ARBITRAGE SA

$263,750

0.09%

25,000

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

Manager	Shares	Value (USD)	% of position	Discretion
ABC ARBITRAGE ASSET MANAGEMENT joint	25,000	$263,750	100.0%	Other

GEODE CAPITAL MANAGEMENT, LLC

$145,327

0.05%

13,947

MORGAN STANLEY

$281

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	27	$281	100.0%	Defined

UBS Group AG

$72

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	7	$72	100.0%	Defined

Sculptor Capital LP SDHIR

—

1,648,895

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

Manager	Shares	Value (USD)	% of position	Discretion
Sculptor Capital II LP joint	1,648,895	$0	—	Sole

Polar Asset Management Partners Inc. SDHIR

—

1,350,000

MILLENNIUM MANAGEMENT LLC SDHIR

—

995,000

Schonfeld Strategic Advisors LLC SDHIR

—

88,758

METEORA CAPITAL, LLC SDHIR

—

763,161

Centiva Capital, LP SDHIR

—

31,268

PICTON MAHONEY ASSET MANAGEMENT SDHIR

—

500,000

READYSTATE ASSET MANAGEMENT LP SDHIR

—

100,000

HBK INVESTMENTS L P SDHIR

—

300,000

TORONTO DOMINION BANK SDHIR

—

378,446

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	378,446	$0	—	Defined

HGC Investment Management Inc. SDHIR

—

1,250,000

RIVERNORTH CAPITAL MANAGEMENT, LLC SDHIR

—

399,872

BERKLEY W R CORP SDHIR

—

93,212

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND SDHIR

—

2,400,000

HIGHBRIDGE CAPITAL MANAGEMENT LLC SDHIR

—

448,959

MOORE CAPITAL MANAGEMENT, LP SDHIR

—

300,000

K2 PRINCIPAL FUND, L.P. SDHIR

—

138,991

ARISTEIA CAPITAL, L.L.C. SDHIR

—

1,650,000

DLD Asset Management, LP SDHIR

—

74,667

Linden Advisors LP SDHIR

—

2,000,000

Magnetar Financial LLC SDHIR

—

1,750,000

AQR Arbitrage LLC SDHIR

—

1,316,343

GLAZER CAPITAL, LLC SDHIR

—

248,100

Harraden Circle Investments, LLC SDHIR

—

208,079

Verition Fund Management LLC SDHIR

—

1,136,924

Radcliffe Capital Management, L.P. SDHIR

—

377,295

Clear Street Group Inc. SDHIR

—

282,077

Shaolin Capital Management LLC SDHIR

—

432,335

Alberta Investment Management Corp SDHIR

—

700,000

BNP PARIBAS ARBITRAGE, SA SDHIR

—

412,987

Hudson Bay Capital Management LP SDHIR

—

547,305

Context Capital Management, LLC SDHIR

—

100,000

Calamos Advisors LLC SDHIR

—

750,000

TENOR CAPITAL MANAGEMENT Co., L.P. SDHIR

—

1,374,599

Alpine Global Management, LLC SDHIR

—

275,000

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS SDHIR

—

400,000

Periscope Capital Inc. SDHIR

—

500,000

Key facts CIK 2034037 CUSIP G8118C124 13F (30d) 1 filings 1 filers