Energy Holding Corp boosts Tecnoglass (TGLS) stake to 46.7% of shares

Rhea-AI Filing Summary

Energy Holding Corp has filed Amendment No. 8 to its Schedule 13D for Tecnoglass Inc., updating its ownership after several open-market purchases in March 2026. It bought 107,000 Ordinary Shares on March 9 at a weighted average price of $41.064 per share and 107,000 shares on March 10 at $43.413 per share. It then purchased 92,066 shares on March 11 at $44.24, 107,600 shares on March 12 at $45.282, and 107,629 shares on March 13 at $45.113.

Following these transactions, Energy Holding Corp holds 20,731,985 Ordinary Shares, representing approximately 46.7% of Tecnoglass’s Ordinary Shares outstanding, based on 44,364,816 shares outstanding as of May 5, 2026. Energy Holding Corp has sole voting and dispositive power over these shares. Directors Joaquin Fernandez and Alberto Jose Velilla Becerra share voting and dispositive power through their roles at Energy Holding Corp and may be deemed beneficial owners, although each disclaims beneficial ownership except for his pecuniary interest.

Insights

Equity ownership & governance analyst

Energy Holding maintains a controlling-style stake in Tecnoglass after additional 2026 share purchases.

Energy Holding Corp now reports beneficial ownership of 20,731,985 Tecnoglass Ordinary Shares, or about 46.7% of the class, based on 44,364,816 shares outstanding as of May 5, 2026. This size of stake gives it substantial influence over shareholder decisions.

The filing details open-market purchases between March 9 and March 13, 2026, with weighted average prices from $41.064 to $45.282 per share. These are straightforward cash purchases, reported separately on Form 4, and indicate incremental accumulation rather than derivative-based exposure.

Energy Holding has sole voting and dispositive power, while directors Joaquin Fernandez and Alberto Jose Velilla Becerra share voting and dispositive power through their positions and may be deemed beneficial owners, subject to their pecuniary interest. Future company filings may show whether this ownership level leads to changes in governance, strategy, or capital allocation.

Key Figures

Total shares owned: 20,731,985 shares Ownership percentage: 46.7% Shares outstanding: 44,364,816 shares +5 more

8 metrics

Total shares owned 20,731,985 shares Energy Holding Corp beneficial ownership as of Amendment No. 8

Ownership percentage 46.7% Percent of Tecnoglass Ordinary Shares based on 44,364,816 outstanding as of May 5, 2026

Shares outstanding 44,364,816 shares Tecnoglass Ordinary Shares outstanding as of May 5, 2026 per Form 10-Q

Purchase on March 9, 2026 107,000 shares at $41.064/share Open-market purchase by Energy Holding Corp

Purchase on March 10, 2026 107,000 shares at $43.413/share Open-market purchase by Energy Holding Corp

Purchase on March 11, 2026 92,066 shares at $44.24/share Open-market purchase by Energy Holding Corp

Purchase on March 12, 2026 107,600 shares at $45.282/share Open-market purchase by Energy Holding Corp

Purchase on March 13, 2026 107,629 shares at $45.113/share Open-market purchase by Energy Holding Corp

Key Terms

Schedule 13D, beneficially owned, sole voting power, dispositive power, +2 more

6 terms

Schedule 13D regulatory

"If the filing person has previously filed a statement on Schedule 13G to report the acquisition"

A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.

beneficially owned financial

"Aggregate amount beneficially owned by each reporting person 20,731,985.00"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole voting power financial

"Number of Shares Beneficially Owned by Each Reporting Person With: 7 | Sole Voting Power 20,731,985.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

dispositive power financial

"Sole Dispositive Power 20,731,985.00 10 | Shared Dispositive Power 20,731,985.00"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

Form 10-Q regulatory

"as reported by the Issuer in its Form 10-Q filed with the SEC on May 8, 2026"

A Form 10-Q is a detailed report that publicly traded companies are required to file with regulators three times a year, providing an update on their financial health and business activities. It is important for investors because it offers timely insights into a company's performance, helping them make informed decisions about buying or selling stocks. Think of it as a regular check-up report that shows how well a company is doing.

Form 4 regulatory

"The purchases were reported on a Form 4 filed with the SEC in connection with such purchases."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 8)

Tecnoglass Inc.

(Name of Issuer)

Ordinary Shares, par value $0.0001 per share

(Title of Class of Securities)

G87264100

(CUSIP Number)

Joaquin Fernandez
Avenida Circunvalar a 100 mts de la, Via 40, Barrio Las Flores
Barranquilla, F8, F8, 080001
57-5-3734000

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

03/13/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

schemaVersion:

SCHEDULE 13D

CUSIP Number(s): G87264100

1

Name of reporting person

Energy Holding Corp

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 20,731,985.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 20,731,985.00
10	Shared Dispositive Power 20,731,985.00

11

Aggregate amount beneficially owned by each reporting person

20,731,985.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

46.7 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

The percentage of beneficial ownership reflected in this Schedule 13D is based upon 44,364,816 Ordinary Shares outstanding as of May 5, 2026 as reported by the Issuer in its Form 10-Q filed with the SEC on May 8, 2026.

SCHEDULE 13D

CUSIP Number(s): G87264100

1

Name of reporting person

Fernandez Joaquin

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

COLOMBIA

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 20,731,985.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 20,731,985.00

11

Aggregate amount beneficially owned by each reporting person

20,731,985.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

46.7 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

The percentage of beneficial ownership reflected in this Schedule 13D is based upon 44,364,816 Ordinary Shares outstanding as of May 5, 2026 as reported by the Issuer in its Form 10-Q filed with the SEC on May 8, 2026.

SCHEDULE 13D

CUSIP Number(s): G87264100

1

Name of reporting person

Velilla Becerra Alberto Jose

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

COLOMBIA

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 20,731,985.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 20,731,985.00

11

Aggregate amount beneficially owned by each reporting person

20,731,985.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

46.7 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

The percentage of beneficial ownership reflected in this Schedule 13D is based upon 44,364,816 Ordinary Shares outstanding as of May 5, 2026 as reported by the Issuer in its Form 10-Q filed with the SEC on May 8, 2026.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Ordinary Shares, par value $0.0001 per share
(b)	Name of Issuer: Tecnoglass Inc.
(c)	Address of Issuer's Principal Executive Offices: 3550 NW 49TH STREET,, MIAMI, FLORIDA , 33142.
Item 3.	Source and Amount of Funds or Other Consideration
	Item 3 of the Existing Schedule 13D is hereby supplemented by adding the following to the end of such Item: On March 9, 2026, Energy Holding Corp completed the purchase of 107,000 Ordinary Shares of Tecnoglass Inc. at a weighted average price of $41.064 per share. On March 10, 2026, Energy Holding Corp completed the purchase of 107,000 Ordinary Shares of Tecnoglass Inc. at a weighted average price of $43.413 per share. On March 11, 2026, Energy Holding Corp completed the purchase of 92,066 Ordinary Shares of Tecnoglass Inc. at a weighted average price of $44.24. On March 12, 2026, Energy Holding Corp completed the purchase of 107,600 Ordinary Shares of Tecnoglass Inc. at a weighted average price of $45.282. On March 13, 2026, Energy Holding Corp completed the purchase of 107,629 Ordinary Shares of Tecnoglass Inc. at a weighted average price of $45.113. Pursuant to the aforementioned purchases, Energy Holding Corp holds an aggregate of 20,731,985 Ordinary Shares as reported on this Amendment No. 8. The purchases were reported on a Form 4 filed with the SEC in connection with such purchases.
Item 5.	Interest in Securities of the Issuer
(a)	Item 5 of the Existing Schedule 13D is hereby amended and restated in its entirety as follows: As of the date of this Schedule 13D, Energy Holding Corp holds 20,731,985 Ordinary Shares, which represents approximately 46.7% of the issued and outstanding Ordinary Shares. As sole direct owner of the 20,731,985 Ordinary Shares, Energy Holding Corp has sole voting and dispositive power of such Ordinary Shares. Messrs. Fernandez and Becerra, as directors of Energy Holding Corp, have shared voting and dispositive power of the Ordinary Shares held by Energy Holding Corp, and may therefore each be deemed to beneficially own all of the shares held by Energy Holding Corp. Neither Mr. Fernandez nor Mr. Becerra holds shares of the Issuer directly. Each of Messrs. Fernandez and Becerra disclaims beneficial ownership of the shares held by Energy Holding Corp, except to the extent of his pecuniary interest thereto. Except to the extent Energy Holding Corp may in the future make distributions to its shareholders by which its shareholders would receive dividends from, or the proceeds from the sale of, the Ordinary Shares, no other person is known by the Reporting Persons to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, any of the Ordinary Shares acquired by the Reporting Persons. In the past 60 days, the Reporting Persons have not engaged in any transactions involving the Ordinary Shares of the Issuer except as disclosed in Item 3 above.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Energy Holding Corp

Signature:	/s/ Joaquin Fernandez
Name/Title:	Joaquin Fernandez, Director
Date:	05/13/2026

Fernandez Joaquin

Signature:	/s/ Joaquin Fernandez
Name/Title:	Joaquin Fernandez
Date:	05/13/2026

Velilla Becerra Alberto Jose

Signature:	/s/ Alberto Jose Velilla Becerra
Name/Title:	Alberto Jose Velilla Becerra
Date:	05/13/2026

FAQ

How many Tecnoglass (TGLS) shares does Energy Holding Corp now own?

Energy Holding Corp owns 20,731,985 Tecnoglass Ordinary Shares. This position represents approximately 46.7% of the company’s Ordinary Shares, based on 44,364,816 shares outstanding as of May 5, 2026, giving Energy Holding substantial influence over shareholder matters.

What percentage of Tecnoglass (TGLS) does Energy Holding Corp control after Amendment No. 8?

Energy Holding Corp’s reported stake is approximately 46.7% of Tecnoglass’s outstanding Ordinary Shares. This percentage is calculated using 44,364,816 shares outstanding as of May 5, 2026, as reported by Tecnoglass in its Form 10-Q filed May 8, 2026.

What recent Tecnoglass (TGLS) share purchases did Energy Holding Corp disclose?

Energy Holding Corp disclosed open-market purchases on March 9, 10, 11, 12, and 13, 2026. It bought blocks of 92,066 to 107,629 Ordinary Shares each day, at weighted average prices between $41.064 and $45.282 per share, increasing its overall ownership stake.

Who has voting and dispositive power over Energy Holding Corp’s Tecnoglass (TGLS) shares?

Energy Holding Corp has sole voting and dispositive power over 20,731,985 Tecnoglass shares. Directors Joaquin Fernandez and Alberto Jose Velilla Becerra share voting and dispositive power through their roles at Energy Holding and may be deemed beneficial owners, subject to their pecuniary interests.

Do Joaquin Fernandez or Alberto Jose Velilla Becerra directly hold Tecnoglass (TGLS) shares?

Neither Joaquin Fernandez nor Alberto Jose Velilla Becerra directly holds Tecnoglass shares. Their reported beneficial ownership arises from their roles as directors of Energy Holding Corp, which owns the 20,731,985 shares; each disclaims ownership except for his pecuniary interest.

How was the 46.7% ownership figure for Tecnoglass (TGLS) calculated?

The 46.7% ownership figure comes from dividing Energy Holding Corp’s 20,731,985 Tecnoglass Ordinary Shares by 44,364,816 shares outstanding. Tecnoglass reported the outstanding share count as of May 5, 2026, in its Form 10-Q filed with the SEC on May 8, 2026.