SIMAU · SIM Acquisition Corp. I · Holdings

$11.11 At close · Oct 15

Market Cap

$89.59M

8.22M

Volume · Oct 15 300 Avg daily vol (16 sessions) 1861

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 SIMAU: 13F, 13D and 13G, insiders and funds →

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: 4

Total Value: $229,047

Total Shares: 20,956

Institutional Ownership Trend

8 quarters

Holder Concentration

Across 4 13F filers

Top Holder

44.3%

of institutional value

Top 5

100.0%

of institutional value

Top 10

100.0%

of institutional value

HHI

3,951

Highly concentrated

Who Holds SIMAU

Last 8 quarters through Jun 30, 2026

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: 4 filers, like-for-like change -79.7%; actively managed books -79.7%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	0.0%	0	-100.0%	0	2
Bank	56.4%	3	+364.2%	1	0
Broker-dealer	0.0%	0	—	0	0
Non-US	0.0%	0	—	0	0
Exempt adviser	0.0%	0	—	0	0
Unknown	43.6%	1	+292.7%	0	0

Style	Share	Filers	Change	New	Exited
Concentrated	43.6%	1	+292.0%	0	1
Diversified active	56.4%	3	-88.3%	1	1
Systematic-like	0.0%	0	—	0	0
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	44.3%	1	new	1	0
Medium turnover	12.1%	2	-97.5%	0	2
High turnover	0.0%	0	—	0	0
Unknown	43.6%	1	+292.7%	0	0
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	43.6%	1	-90.9%	0	1
Medium horizon	0.0%	0	-100.0%	0	1
Long horizon	56.4%	3	+364.2%	1	0
Unknown	0.0%	0	—	0	0
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	0.0%	0	-100.0%	0	1
$1B to $10B	0.0%	0	-100.0%	0	1
$10B to $100B	43.6%	1	+292.7%	0	0
$100B or more	56.4%	3	+364.2%	1	0
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Pooled investment vehicles	0.0%	0	-100.0%	0	2
Diversified	0.0%	0	—	0	0
Registered funds and BDCs	0.0%	0	—	0	0
Unknown	100.0%	4	+330.0%	1	0

Private funds	Share	Filers	Change	New	Exited
Hedge funds	0.0%	0	-100.0%	0	2
No private funds	0.0%	0	—	0	0
Private funds, type not stated	0.0%	0	—	0	0
Unknown	100.0%	4	+330.0%	1	0

Location	Share	Filers	Change	New	Exited
United States	87.9%	2	-81.7%	1	2
Outside the US	12.1%	2	-0.2%	0	0

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

4 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

0.000% of filers hold it in their top 10

Mar 31, 2026: 0

Holders above 5%

median weight 0.000%

Mar 31, 2026: 0

Crowding

—

shares outstanding is an issuer-wide count, not one listing's

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

shares outstanding is an issuer-wide count, not one listing's

Top 10 holders

100.0%

of 13F shares, Herfindahl 0.395

Active holders

-79.7%

like-for-like share change of active filers

5% stakes on record

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

How long holders have held it value-weighted 2.7 quarters

Under 1 year 87.9% 1 to 3 years 12.1% 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

$10.11

estimated per share

Mar 31, 2026: $9.98

Quarter-end price

$10.93

implied by 13F values

Estimated gain or loss

+8.1%

price against the estimated cost

Estimated at a loss

0.000%

of costed 13F value

Estimated cost covers 3.12% 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 SIMAU's active holders also own, quarter ended Mar 31, 2026

#	Company	Shared holders	Similarity
1	LPAA Launch One Acquisition Corp.	11	0.820
2	MACI Melar Acquisition Corp. I	10	0.716
3	BSAA BEST SPAC I Acquisition Corp.	6	0.632
4	CUB Lionheart Holdings	9	0.621
5	POLE Andretti Acquisition Corp. II	9	0.621
6	ALF Centurion Acquisition Corp.	9	0.600
7	SOUL Soulpower Acquisition Corp.	13	0.593
8	FSHP Flag Ship Acquisition Corp	5	0.577
9	MEVO M Evo Global Acquisition Corp II	7	0.545
10	DRDB Roman DBDR Acquisition Corp. II	8	0.533

Shareholder Targets

13F filers that own its peers but not SIMAU, quarter ended Mar 31, 2026

Found through its holder-overlap peers: LPAA, MACI, BSAA, CUB, POLE, ALF, SOUL, FSHP, MEVO, DRDB, ANSC, LCCC, IPEX, GTERA, VLOS, SCII, APXT, KFII, TDAC, PLMK. 71 filers in all.

#	Filer	In peers	Of book	Largest peers
1	Polar Asset Management Partners Inc. Registered adviser, Diversified active	$141,388,780 18 held	6.05%	VLOS, MACI, POLE
2	TENOR CAPITAL MANAGEMENT Co., L.P. Registered adviser, Diversified active	$111,960,873 13 held	8.20%	KFII, SOUL, DRDB
3	Linden Advisors LP Registered adviser, Diversified active	$110,627,269 12 held	6.89%	SCII, KFII, MEVO
4	ARISTEIA CAPITAL, L.L.C. Registered adviser, Diversified active	$82,184,746 12 held	3.32%	MEVO, ANSC, DRDB
5	ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active	$46,300,500 2 held	0.070%	MEVO, APXT
6	Jain Global LLC Registered adviser, Systematic-like	$40,840,725 5 held	0.560%	VLOS, CUB, PLMK
7	HIGHBRIDGE CAPITAL MANAGEMENT LLC Registered adviser, Diversified active	$39,259,445 14 held	4.52%	DRDB, ANSC, MACI
8	Fort Baker Capital Management LP Registered adviser, Concentrated	$37,174,642 2 held	4.76%	ANSC, DRDB
9	MILLENNIUM MANAGEMENT LLC Registered adviser, Systematic-like	$35,482,920 8 held	0.030%	MEVO, SOUL, APXT
10	MOORE CAPITAL MANAGEMENT, LP Registered adviser, Diversified active	$23,988,250 11 held	0.980%	KFII, APXT, ANSC

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.

Holder count: -1

Institutional value: —

Shares held: -79.7%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds	Open
Large Clear Street Group Inc.	+6,808	9,134

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds	Open
Mega UBS Group AG	−4	1,889

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)	Open
Mega JPMORGAN CHASE & CO	9,279	$101,419

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)	Open
Mid Magnetar Financial LLC	4	$0
Small Yakira Capital Management, Inc.	98,360	$0

Filter: New 1 Increased 1 Reduced 1 Sold out 2 Unchanged 1

Holder type: Bank 3 Unknown 1

Showing 4 of 4

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

JPMORGAN CHASE & CO SIMAU

$101,419

44.28%

9,279

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	9,279	$101,419	100.0%	Defined

Clear Street Group Inc. SIMAU

$99,834

43.59%

9,134

UBS Group AG SIMAU

$20,646

9.01%

1,889

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	1,889	$20,646	100.0%	Defined

BARCLAYS PLC SIMAU

$7,148

3.12%

654

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

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS CAPITAL INC.	654	$7,148	100.0%	Defined

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