ADAC · American Drive Acquisition Co · Holdings

$10.07 At close · Oct 26

Market Cap

$289.51M

28.75M

Volume · Oct 22 18.1K Avg daily vol (3M) 36.61K

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 ADAC: 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: 70

Total Value: $223,763,172

Total Shares: 28,650,259

Showing 1–100 of 111 holdings by value · page 1 of 2

Institutional Ownership Trend

4 quarters

Holder Concentration

Across 70 13F filers

Top Holder

5.6%

of institutional value

Top 5

25.0%

of institutional value

Top 10

45.2%

of institutional value

HHI

305

Broadly held

Who Holds ADAC

Last 4 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: 70 filers, like-for-like change +2.8%; actively managed books +2.8%; index-like books -99.8%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	62.3%	35	+1.6%	1	1
Exempt adviser	2.6%	3	0.0%	0	0
Adviser	0.3%	2	0.0%	0	0
Bank	0.9%	4	+1.3%	0	0
Broker-dealer	0.9%	1	0.0%	0	0
Benefit plan	1.6%	2	0.0%	0	0
Non-US	16.6%	6	+0.2%	0	0
Holding company	0.0%	1	+272.7%	0	0
Unknown	14.8%	16	+12.8%	1	0

Style	Share	Filers	Change	New	Exited
Index-like	0.0%	1	-99.8%	0	1
Systematic-like	10.7%	7	0.0%	0	0
Concentrated	18.3%	9	+3.1%	0	0
Diversified active	70.9%	53	+3.2%	2	0
Not measured	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	2.8%	6	+73.6%	1	0
Medium turnover	59.0%	28	+1.1%	0	0
High turnover	34.9%	30	+2.2%	1	1
Unknown	3.3%	6	+2.9%	0	0
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	48.3%	31	+1.2%	1	1
Medium horizon	17.2%	7	+7.3%	0	0
Long horizon	20.2%	17	+6.6%	1	0
Unknown	14.3%	15	-2.1%	0	0
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	16.7%	23	-3.1%	0	1
$1B to $10B	50.6%	25	+4.6%	1	0
$10B to $100B	23.8%	12	+4.6%	1	0
$100B or more	9.0%	10	-0.5%	0	0
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	0.1%	1	0.0%	0	0
Pooled investment vehicles	60.6%	31	+1.7%	1	0
Registered funds and BDCs	1.6%	3	-4.3%	0	1
Unknown	37.7%	35	+4.8%	1	0

Private funds	Share	Filers	Change	New	Exited
Hedge funds	59.7%	34	+1.8%	1	0
Other private funds	2.9%	2	0.0%	0	0
Private funds, type not stated	1.8%	1	0.0%	0	0
No private funds	0.5%	1	-11.8%	0	1
Private equity funds	0.0%	0	—	0	0
Unknown	35.2%	32	+5.2%	1	0

Location	Share	Filers	Change	New	Exited
United States	65.8%	49	+2.1%	2	1
Outside the US	34.2%	21	+4.1%	0	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

52 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 0.083%

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

51.1%

of 13F shares, Herfindahl 0.037

Active holders

+12.7%

like-for-like share change of active filers

5% stakes on record

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

How long holders have held it value-weighted 1.9 quarters

Under 1 year 100.0% 1 to 3 years 0.000% 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

$9.91

estimated per share

Mar 31, 2026: $9.90

Quarter-end price

$10.02

implied by 13F values

Estimated gain or loss

+1.1%

price against the estimated cost

Estimated at a loss

0.000%

of costed 13F value

Estimated cost covers 98.5% 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 ADAC's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	BLRK Bluerock Acquisition Corp.	5	0.680
2	SORN Soren Acquisition Corp.	5	0.589
3	LPCV Launchpad Cadenza Acquisition Corp I	5	0.589
4	IACO Idea Acquisition Corp.	5	0.503
5	SCPQ Social Commerce Partners Corp	3	0.500
6	AEAQ Activate Energy Acquisition Corp.	5	0.481
7	FGII FG Imperii Acquisition Corp.	4	0.471
8	FVN Future Vision II Acquisition Corp.	3	0.447
9	ARCI Archimedes Tech SPAC Partners III Co.	3	0.447
10	NMP NMP Acquisition Corp.	3	0.447

Shareholder Targets

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

Found through its holder-overlap peers: BLRK, SORN, LPCV, IACO, SCPQ, AEAQ, FGII, FVN, ARCI, NMP, WTG, IEAG, SAAQ, ILLU, ITHA, CCII, MCGA, NOEM, ALOV, EVAC. 73 filers in all.

#	Filer	In peers	Of book	Largest peers
1	BERKLEY W R CORP Insurer, Diversified active	$84,281,055 18 held	4.62%	EVAC, MCGA, FGII
2	Verition Fund Management LLC Registered adviser, Diversified active	$58,069,241 13 held	0.450%	IEAG, ARCI, FGII
3	Fort Baker Capital Management LP Registered adviser, Concentrated	$50,127,538 4 held	5.06%	CCII, SAAQ, EVAC
4	MIZUHO SECURITIES USA LLC Unknown, Index-like	$48,498,944 11 held	0.760%	MCGA, NMP, NOEM
5	METEORA CAPITAL, LLC Adviser, Diversified active	$40,810,902 9 held	3.95%	CCII, MCGA, IEAG
6	First Trust Capital Management L.P. Registered adviser, Diversified active	$28,945,865 9 held	2.70%	EVAC, IACO, BLRK
7	Schonfeld Strategic Advisors LLC Registered adviser, Diversified active	$22,799,897 17 held	0.120%	IACO, ARCI, EVAC
8	Wealthspring Capital LLC Registered adviser, Diversified active	$19,259,195 5 held	5.60%	ITHA, BLRK, AEAQ
9	Point72 Asset Management, L.P. Registered adviser, Systematic-like	$18,040,000 1 held	0.030%	IEAG
10	HIGHBRIDGE CAPITAL MANAGEMENT LLC Registered adviser, Diversified active	$16,865,316 8 held	1.00%	FGII, AEAQ, NMP

Holder type: Registered adviser 35 Exempt adviser 3 Adviser 2 Bank 4 Broker-dealer 1 Benefit plan 2 Non-US 6 Holding company 1 Unknown 16

Showing 100 of 111

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

ADAGE CAPITAL PARTNERS GP, L.L.C.

$12,525,000

5.60%

1,250,000

TENOR CAPITAL MANAGEMENT Co., L.P.

$12,525,000

5.60%

1,250,000

AQR Arbitrage LLC

$10,746,389

4.80%

1,072,494

ARISTEIA CAPITAL, L.L.C.

$10,188,336

4.55%

1,016,800

MMCAP International Inc. SPC

$10,020,000

4.48%

1,000,000

Polar Asset Management Partners Inc.

$10,020,000

4.48%

1,000,000

Alberta Investment Management Corp

$10,020,000

4.48%

1,000,000

Magnetar Financial LLC

$10,019,899

4.48%

999,990

HGC Investment Management Inc.

$7,879,858

3.52%

786,413

PICTON MAHONEY ASSET MANAGEMENT

$7,515,000

3.36%

750,000

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

$6,613,200

2.96%

660,000

D. E. Shaw & Co., Inc.

$6,108,943

2.73%

609,675

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.	609,675	$6,108,943	100.0%	Defined

Radcliffe Capital Management, L.P.

$6,012,000

2.69%

600,000

BNP PARIBAS ARBITRAGE, SA

$5,370,669

2.40%

535,995

LMR Partners LLP ADACU

$5,115,000

2.29%

500,000

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	500,000	$5,115,000	100.0%	Sole

BlueCrest Capital Management Ltd ADACU

$5,115,000

2.29%

500,000

HBK INVESTMENTS L P

$5,010,010

2.24%

500,001

Ghisallo Capital Management LLC

$5,010,000

2.24%

500,000

Linden Advisors LP

$5,010,000

2.24%

500,000

SONA ASSET MANAGEMENT (US) LLC

$4,840,571

2.16%

483,091

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	483,091	$4,840,571	100.0%	Other

MILLENNIUM MANAGEMENT LLC

$4,509,000

2.02%

450,000

GLAZER CAPITAL, LLC

$4,434,230

1.98%

442,538

OMERS ADMINISTRATION Corp ADACU

$4,092,000

1.83%

400,000

Context Capital Management, LLC

$4,008,000

1.79%

400,000

TIG Advisors, LLC

$4,008,000

1.79%

400,000

TWO SIGMA INVESTMENTS, LP

$3,632,250

1.62%

362,500

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS

$3,006,000

1.34%

300,000

Mint Tower Capital Management B.V.

$3,006,000

1.34%

300,000

WHITEBOX ADVISORS LLC

$3,006,000

1.34%

300,000

Kryger Capital LLC

$2,949,046

1.32%

294,316

PEAK6 LLC ADACU

$2,705,057

1.21%

264,424

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	264,424	$2,705,057	100.0%	Defined

SYQUANT CAPITAL SAS ADACU

$2,104,000

0.94%

200,000

Calamos Advisors LLC ADACU

$2,023,412

0.90%

197,792

WOLVERINE ASSET MANAGEMENT LLC

$2,006,204

0.90%

200,220

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	200,220	$2,006,204	100.0%	Defined

L1 Global Manager Pty Ltd

$2,004,000

0.90%

200,000

Shaolin Capital Management LLC

$1,865,944

0.83%

186,222

JPMORGAN CHASE & CO

$1,756,766

0.79%

175,326

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.	175,326	$1,756,766	100.0%	Defined

Westchester Capital Management, LLC ADACU

$1,534,498

0.69%

150,000

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	1,402	$14,342	0.9%	Sole
Virtus Investment Advisers, LLC	135,064	$1,381,704	90.0%	Other
Held directly	13,534	$138,452	9.0%	Sole

Clear Street Group Inc.

$1,232,890

0.55%

123,043

MOORE CAPITAL MANAGEMENT, LP

$1,002,000

0.45%

100,000

DLD Asset Management, LP

$1,002,000

0.45%

100,000

Governors Lane LP

$1,002,000

0.45%

100,000

Centiva Capital, LP

$1,002,000

0.45%

100,000

MARSHALL WACE, LLP

$1,001,999

0.45%

100,000

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

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	100,000	$1,001,999	100.0%	Other

Hudson Bay Capital Management LP

$1,001,989

0.45%

99,999

Periscope Capital Inc.

$997,992

0.45%

99,600

RIVERNORTH CAPITAL MANAGEMENT, LLC

$751,500

0.34%

75,000

TORONTO DOMINION BANK ADACU

$538,098

0.24%

52,600

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	52,600	$538,098	100.0%	Defined

Kepos Capital LP

$521,050

0.23%

52,001

Stoic Point Capital Management LLC ADACU

$518,026

0.23%

50,638

PRELUDE CAPITAL MANAGEMENT, LLC ADACU

$518,026

0.23%

50,638

Lineage Point Capital LP ADACU

$514,701

0.23%

50,313

K2 PRINCIPAL FUND, L.P.

$501,000

0.22%

50,000

STATE OF WISCONSIN INVESTMENT BOARD

$501,000

0.22%

50,000

HEIGHTS CAPITAL MANAGEMENT, INC

$501,000

0.22%

50,000

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	50,000	$501,000	100.0%	Other

Clear Street Group Inc. ADACU

$425,885

0.19%

41,631

MANGROVE PARTNERS IM, LLC

$424,016

0.19%

42,317

Quarry LP ADACU

$255,750

0.11%

25,000

RLH Capital LLC ADACU

$255,750

0.11%

25,000

SUSQUEHANNA INTERNATIONAL GROUP, LLP ADACU

$255,750

0.11%

25,000

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	25,000	$255,750	100.0%	Other

Karpus Management, Inc.

$220,440

0.10%

22,000

PenderFund Capital Management Ltd.

$166,843

0.07%

16,651

CSS LLC/IL

$159,307

0.07%

15,899

TORONTO DOMINION BANK

$149,298

0.07%

14,900

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	14,900	$149,298	100.0%	Defined

UBS Group AG ADACU

$20,521

0.01%

2,006

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	2,006	$20,521	100.0%	Defined

GLAZER CAPITAL, LLC ADACU

$6,649

0.00%

650

MORGAN STANLEY

$410

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	41	$410	100.0%	Defined

Mint Tower Capital Management B.V. ADACW

—

100,000

MOORE CAPITAL MANAGEMENT, LP ADACW

—

33,333

Kryger Capital LLC ADACW

—

99,775

Radcliffe Capital Management, L.P. ADACW

—

199,998

SONA ASSET MANAGEMENT (US) LLC ADACW

—

133,331

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	133,331	$0	—	Other

HEIGHTS CAPITAL MANAGEMENT, INC ADACW

—

16,666

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	16,666	$0	—	Other

MILLENNIUM MANAGEMENT LLC ADACW

—

149,999

STATE OF WISCONSIN INVESTMENT BOARD ADACW

—

16,666

Linden Advisors LP ADACW

—

166,665

FNY Investment Advisers, LLC

—

320

BNP PARIBAS ARBITRAGE, SA ADACW

—

178,665

Context Capital Management, LLC ADACW

—

133,333

ARISTEIA CAPITAL, L.L.C. ADACW

—

338,932

DELTEC ASSET MANAGEMENT LLC

—

24,950

D. E. Shaw & Co., Inc. ADACW

—

116,666

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.	116,666	$0	—	Defined

AQR Arbitrage LLC ADACW

—

357,495

Magnetar Financial LLC ADACW

—

333,330

Hudson Bay Capital Management LP ADACW

—

33,333

PICTON MAHONEY ASSET MANAGEMENT ADACW

—

249,999

WHITEBOX ADVISORS LLC ADACW

—

100,000

Periscope Capital Inc. ADACW

—

33,200

MMCAP International Inc. SPC ADACW

—

333,333

TIG Advisors, LLC ADACW

—

133,330

RIVERNORTH CAPITAL MANAGEMENT, LLC ADACW

—

25,000

K2 PRINCIPAL FUND, L.P. ADACW

—

33,333

HGC Investment Management Inc. ADACW

—

12,137

HBK INVESTMENTS L P ADACW

—

166,667

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND ADACW

—

220,000

TORONTO DOMINION BANK ADACW

—

10,000

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	10,000	$0	—	Defined

Polar Asset Management Partners Inc. ADACW

—

333,333

ADAGE CAPITAL PARTNERS GP, L.L.C. ADACW

—

377,778

Parallax Volatility Advisers, L.P. ADACW

—

105,283

ABC ARBITRAGE SA ADACW

—

13,333

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	13,333	$0	—	Other

Showing the top 100 of 111 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.

Key facts CIK 2083002 CUSIP G0R91M105 13F (30d) 3 filings 3 filers