Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

Berto Acquisition Corp.

CIK 0002033122TACOTACOUTACOW· quarter ending 2026-06-30

Shares outstanding

37,518,750

as of 2026-08-14 · 10-Q cover page, filed 2026-08-14

Held by 13F filers

12,487,906

selection includes debt or preferreds — no % of shares outstanding

Holders

+0 vs 2026-03-31 · 5 new, 5 exited

Value

$9.2M

shares -0.7% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-14, as of 2026-08-14)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	TACO · NASDAQ	37,518,750	28,530,922	76.0%	63	G1051H101

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
G1051H101	COM	63	28,530,922	37,518,750	76.0%	$299.1M	—	13DG	holders →
G1051H119	COMnot common	48	12,243,895 $244K principal	—	—	$9.2M	1 call / 0 put	NPORT	holders →
G1051H127	UNIT 99/99/9999not common	4	304,472	—	—	$3.3M	—	NPORT	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (48 of 48 · G1051H119)

change vs 2026-03-31

#	Filer	Shares / principal	% of class	Value	Change
1	Harraden Circle Investments, LLC	1,341,238	—	$955K	+226,230 (+20.3%)
2	Meteora Capital, LLC	826,401	—	$589K	—
3	Magnetar Financial LLC	825,000	—	$611K	—
4	Linden Advisors LP	744,699	—	$547K	—
5	LMR Partners LLP	625,000	—	$445K	—
6	Polar Asset Management Partners Inc.	600,000	—	$432K	—
7	AQR Arbitrage LLC	563,549	—	$411K	+3,576 (+0.6%)
8	MOORE CAPITAL MANAGEMENT, LP	500,000	—	$356K	—
9	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	500,000	—	$370K	—
10	Lineage Point Capital LP	483,388	—	$344K	+168,481 (+53.5%)
11	Saba Capital Management, L.P.	406,561	—	$299K	—
12	Shaolin Capital Management LLC	406,300	—	$289K	-4,700 (-1.1%)
13	TENOR CAPITAL MANAGEMENT Co., L.P.	400,000	—	$285K	—
14	Hudson Bay Capital Management LP	300,000	—	$222K	-221,341 (-42.5%)
15	Governors Lane LP	285,006	—	$209K	+89,246 (+45.6%)
16	Walleye Capital LLC	277,787	—	$198K	—
17	HIGHBRIDGE CAPITAL MANAGEMENT LLC	244,011	—	$178K	-20,977 (-7.9%)
18	GLAZER CAPITAL, LLC	235,885	—	$168K	-54,115 (-18.7%)
19	BNP PARIBAS FINANCIAL MARKETS	202,562	—	$144K	—
20	Centiva Capital, LP	200,000	—	$148K	NEW
21	TORONTO DOMINION BANK	198,605	—	$141K	-82,017 (-29.2%)
22	K2 PRINCIPAL FUND, L.P.	193,127	—	$137K	-86,374 (-30.9%)
23	HGC Investment Management Inc.	175,000	—	$125K	—
24	Verition Fund Management LLC	151,242	—	$112K	-174,953 (-53.6%)
25	Wealthspring Capital LLC	150,000	—	$107K	—
26	Context Capital Management, LLC	150,000	—	$107K	—
27	PEAK6 LLC	146,262	—	$104K	—
28	ARISTEIA CAPITAL, L.L.C.	139,819	—	$103K	+20,994 (+17.7%)
29	Periscope Capital Inc.	137,500	—	$99K	—
30	D. E. Shaw & Co., Inc.	125,000	—	$93K	—
31	Alberta Investment Management Corp	125,000	—	$89K	—
32	DLD Asset Management, LP	105,995	—	$76K	+3,400 (+3.3%)
33	Radcliffe Capital Management, L.P.	93,872	—	$69K	+67,529 (+256.3%)
34	CSS LLC/IL	88,938	—	$63K	-130,969 (-59.6%)
35	RIVERNORTH CAPITAL MANAGEMENT, LLC	87,472	—	$65K	—
36	Parallax Volatility Advisers, L.P.	75,500	—	$56K	-24,559 (-24.5%)
37	RLH Capital LLC	66,926	—	$48K	NEW
38	Schonfeld Strategic Advisors LLC	50,000	—	$36K	-70,000 (-58.3%)
39	GRITSTONE ASSET MANAGEMENT LLC	49,427	—	$35K	—
40	Quarry LP	42,004	—	$30K	NEW
41	Westchester Capital Management, LLC	37,499	—	$28K	—
42	Clear Street Group Inc.	27,478	—	$20K	-33,449 (-54.9%)
43	READYSTATE ASSET MANAGEMENT LP	25,000	—	$19K	—
44	Endure Capital Management, LLC	20,000	—	$14K	—
45	HRT FINANCIAL LP	17,761	—	$13K	NEW
46	Rangeley Capital, LLC	16,000	—	$168K	+500 (+3.2%)
47	SkyView Investment Advisors, LLC	15,092	—	$11K	NEW
48	StoneX Group Inc.	10,000	—	$6K	—

Exited since 2026-03-31 (5 filers; largest 5 shown)

HEIGHTS CAPITAL MANAGEMENT, INC	−50,000
Bulldog Investors, LLP	−32,757
SUSQUEHANNA INTERNATIONAL GROUP, LLP	−12,276
TWO SIGMA SECURITIES, LLC	−11,649
WOLVERINE ASSET MANAGEMENT LLC	−1,008

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Berto Acquisition Sponsor LLC	SCHEDULE 13G	2025-08-14	2025-06-30	2,688,300	7.2%
Harry L. You	SCHEDULE 13G	2025-08-14	2025-06-30	5,089,500	13.6%
Robert You	SCHEDULE 13G	2025-08-14	2025-06-30	2,101,050	5.6%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.