Socket Mobile holder cuts stake to 4.9%

Socket Mobile, Inc. shareholder Enrico Kevin Mills filed an amendment updating his ownership following significant trading on August 10, 2026.

Rhea-AI Filing Summary

Socket Mobile, Inc. shareholder Enrico Kevin Mills filed an amendment updating his ownership following significant trading on August 10, 2026. He is reported as the beneficial owner of 426,304 shares of common stock, consisting of 10 shares held directly and 426,294 shares issuable upon conversion of a 2024 Note and a 2025 Note. This position represents 4.9% of 8,667,252 shares of common stock deemed outstanding under Rule 13d-3(d)(1). On August 10, 2026, he sold 316,199 shares in open market transactions at a weighted average price of $2.09 per share, and bought 10 shares at $1.69 per share. The notes remain outstanding, subject to a redemption request delivered August 6, 2026, and remain convertible until repayment. The filing states that on this date he ceased to be the beneficial owner of more than five percent of the common stock; upon repayment of the notes, his beneficial ownership would be limited to 10 shares.

Key Figures

Beneficial ownership: 426,304 shares Ownership percentage: 4.9% Shares underlying 2024 Note: 262,743 shares +5 more

8 metrics

Beneficial ownership 426,304 shares Shares of Socket Mobile common stock beneficially owned by Enrico Kevin Mills

Ownership percentage 4.9% Percent of 8,667,252 shares of common stock deemed outstanding

Shares underlying 2024 Note 262,743 shares Common shares issuable upon conversion of the 2024 Note

Shares underlying 2025 Note 163,551 shares Common shares issuable upon conversion of the 2025 Note

Shares sold 316,199 shares Aggregate Socket Mobile shares sold on August 10, 2026

Weighted average sale price $2.09 per share Weighted average price for August 10, 2026 open market sales

Deemed outstanding shares 8,667,252 shares Shares deemed outstanding under Rule 13d-3(d)(1)

Purchase price $1.69 per share Price for 10 shares of common stock purchased on August 10, 2026

Key Terms

beneficial owner, Rule 13d-3(d)(1), open market transactions, weighted average price, +1 more

5 terms

beneficial owner financial

"The Reporting Person is the <b>beneficial owner</b> of 426,304 shares of Common Stock"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

Rule 13d-3(d)(1) regulatory

"shares of Common Stock deemed outstanding pursuant to <b>Rule 13d-3(d)(1)</b>"

open market transactions financial

"sold an aggregate of 316,199 shares of Common Stock in <b>open market transactions</b>"

Open market transactions are the buying and selling of a company’s shares or other securities conducted on public exchanges or through the wider market rather than through private deals or negotiated placements. They matter to investors because these trades change supply and demand in real time—like shoppers affecting a store’s inventory—and so can move prices, signal management or investor sentiment, affect liquidity, and alter ownership stakes that influence future returns and risk.

weighted average price financial

"in open market transactions at a <b>weighted average price</b> of $2.09 per share"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

redemption request financial

"Notes, which remain subject to the <b>redemption request</b> delivered August 6, 2026"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What is Enrico Kevin Mills’ current ownership stake in Socket Mobile (SCKT)?

Enrico Kevin Mills is the beneficial owner of 426,304 Socket Mobile shares, representing 4.9% of 8,667,252 shares deemed outstanding, primarily through convertible 2024 and 2025 notes plus 10 shares held directly.

How many Socket Mobile (SCKT) shares did Enrico Kevin Mills sell on August 10, 2026?

On August 10, 2026, Enrico Kevin Mills sold 316,199 shares of Socket Mobile common stock in open market transactions, including 265,784 shares held directly and 50,415 shares held in custodial accounts.

At what prices were the Socket Mobile (SCKT) shares traded by Mills on August 10, 2026?

The 316,199 Socket Mobile shares sold by Mills had a weighted average price of $2.09 per share, with prices ranging from $1.80 to $2.30. He also purchased 10 shares at $1.69 per share.

What convertible notes underlie Mills’ beneficial ownership in Socket Mobile (SCKT)?

Mills’ beneficial ownership includes up to 262,743 shares issuable upon conversion of a 2024 Note and up to 163,551 shares upon conversion of a 2025 Note, which together account for 426,294 underlying shares.

When did Enrico Kevin Mills cease to be a more-than-5% holder of Socket Mobile (SCKT)?

The filing states that on August 10, 2026, following his share sales, Enrico Kevin Mills ceased to be the beneficial owner of more than five percent of Socket Mobile’s outstanding common stock.

What happens to Mills’ Socket Mobile (SCKT) ownership if the notes are repaid?

The company disclosure indicates that upon repayment of the 2024 and 2025 Notes, Mills’ beneficial ownership would consist of only 10 shares of Socket Mobile common stock held directly.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 08/10/2026 - 02:55 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 2)

SOCKET MOBILE, INC.

(Name of Issuer)

Common Stock, $0.001 par value per share

(Title of Class of Securities)

83368E200

(CUSIP Number)

Enrico Kevin Mills
Room 1601, 16/F Wing On Centre, 111 Connaught Road Central
Central, K3, -
85230018846

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

08/10/2026

(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): 83368E200

1

Name of reporting person

Mills Enrico Kevin

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)

PF

5

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

6

Citizenship or place of organization

SWITZERLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 426,304.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 426,304.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

426,304.00

12

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

13

Percent of class represented by amount in Row (11)

4.9 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Consists of 10 shares held directly and 426,294 shares issuable upon conversion of the 2024 Note and the 2025 Note, as described in Item 5(a).

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock, $0.001 par value per share
(b)	Name of Issuer: SOCKET MOBILE, INC.
(c)	Address of Issuer's Principal Executive Offices: 40675 ENCYCLOPEDIA CIRCLE, FREMONT, CALIFORNIA , 94538-2475.
Item 4.	Purpose of Transaction
	This Amendment No. 2 amends and supplements the Schedule 13D filed June 12, 2025, as amended by Amendment No. 1 filed August 6, 2026 (as so amended, the 'Original Schedule 13D'). Capitalized terms used but not defined herein have the meanings given in the Original Schedule 13D. Except as set forth herein, the disclosure in the Original Schedule 13D is unchanged. On August 10, 2026, the Reporting Person sold in open market transactions all shares of Common Stock previously reported as held directly and in custodial accounts, as described in Item 5(c), and subsequently purchased 10 shares of Common Stock. The Reporting Person continues to hold the 2024 Note and the 2025 Note, which remain subject to the redemption request delivered August 6, 2026 and remain convertible until repayment. Upon repayment of the Notes, the Reporting Person's beneficial ownership will consist of 10 shares of Common Stock.
Item 5.	Interest in Securities of the Issuer
(a)	The Reporting Person is the beneficial owner of 426,304 shares of Common Stock, consisting of (i) 10 shares of Common Stock held directly, (ii) up to 262,743 shares of Common Stock issuable upon conversion of the 2024 Note, and (iii) up to 163,551 shares of Common Stock issuable upon conversion of the 2025 Note. Such shares represent approximately 4.9% of the 8,667,252 shares of Common Stock deemed outstanding pursuant to Rule 13d-3(d)(1), based on 8,240,958 shares of Common Stock outstanding as of May 8, 2026, as reported on the cover page of the Issuer's Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, plus the 426,294 shares issuable upon conversion of the Notes.
(c)	On August 10, 2026, the Reporting Person sold an aggregate of 316,199 shares of Common Stock (265,784 held directly and 50,415 held in custodial accounts) in open market transactions at a weighted average price of $2.09 per share (prices ranging from $1.80 to $2.30). On August 10, 2026, the Reporting Person purchased 10 shares of Common Stock in an open market transaction at $1.69 per share. The forfeiture disclosed in Amendment No. 1 is incorporated by reference.
(e)	On August 10, 2026, the Reporting Person ceased to be the beneficial owner of more than five percent of the Common Stock.

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.

Mills Enrico Kevin

Signature:	/s/ Enrico Kevin Mills
Name/Title:	Enrico Kevin Mills
Date:	08/10/2026