IRIDEX: Xinpo buys 570,184 shares in 30 trades

Dated ownership figures attribute 1,186,809 shares to Xinpo and 551,429 shares to Novel Inspiration within Lin Shih-Yao David’s aggregate beneficial ownership.

Rhea-AI Filing Summary

IRIDEX Corp. (IRIX) 10% owner Lin Shih-Yao David reported 30 previously unreported open-market purchases of common stock by Xinpo, totaling 570,184 shares. The listed purchases span March 25, 2025, through June 5, 2025. Xinpo held the shares directly, while Lin held an indirect interest and had a pecuniary interest in them. No Rule 10b5-1 plan is reported.

Insider Trade Summary

Net Buyer: 570,184 shares

Net Buy 30 txns

Insider Lin Shih-Yao David

Role 10% Owner

Bought 570,184 shs ($598K)

Type	Security	Shares	Price	Value
Purchase	Common Stock F3, F1	50,000	$0.9866	$49K
Purchase	Common Stock F1	40,114	$1.00	$40K
Purchase	Common Stock F1	3,719	$0.968	$4K
Purchase	Common Stock F1	23,526	$0.94	$22K
Purchase	Common Stock F2, F1	80,000	$0.9998	$80K
Purchase	Common Stock F2, F1	3,802	$1.02	$4K
Purchase	Common Stock F2, F1	20,000	$1.0499	$21K
Purchase	Common Stock F1	7,562	$1.01	$8K
Purchase	Common Stock F1	3,176	$1.00	$3K
Purchase	Common Stock F1	39,937	$1.00	$40K
Purchase	Common Stock F1	50,000	$1.10	$55K
Purchase	Common Stock F2, F1	50,000	$1.1595	$58K
Purchase	Common Stock F1	851	$1.15	$978.65
Purchase	Common Stock F1	20,000	$1.15	$23K
Purchase	Common Stock F2, F1	26,581	$1.1593	$31K
Purchase	Common Stock F1	11,773	$1.15	$14K
Purchase	Common Stock F1	4,032	$1.18	$5K
Purchase	Common Stock F2, F1	6,253	$1.22	$8K
Purchase	Common Stock F1	50,000	$1.20	$60K
Purchase	Common Stock F1	1,231	$1.02	$1K
Purchase	Common Stock F1	7,230	$1.02	$7K
Purchase	Common Stock F1	20,000	$1.02	$20K
Purchase	Common Stock F1	879	$0.97	$852.63
Purchase	Common Stock F1	789	$0.925	$729.83
Purchase	Common Stock F1	6,226	$0.87	$5K
Purchase	Common Stock F1	2,995	$0.85	$3K
Purchase	Common Stock F1	10,674	$0.8395	$9K
Purchase	Common Stock F2, F1	15,000	$0.8899	$13K
Purchase	Common Stock F2, F1	8,834	$0.8922	$8K
Purchase	Common Stock F2, F3, F1	5,000	$0.9346	$5K

Holdings After Transaction: Common Stock — 570,184 shares (Indirect, By Xinpo)

Footnotes (3)

1. F1. The shares are held directly by Xinpo Venture Capital Co., Ltd. ("Xinpo") and indirectly by the Reporting Person. The Reporting Person controls the entire ownership interest in Xinpo, both directly and through family members, and has a pecuniary interest in the shares held by Xinpo.
2. F2. Each price marked with this footnote is a weighted average price for multiple open-market purchases on the stated date. The execution prices were as follows: 03/25/2025: $0.931 to $0.94, inclusive; 03/26/2025: $0.8875 to $0.893, inclusive; 04/04/2025: $0.885 to $0.89, inclusive; 04/28/2025: $1.22 per share; 05/07/2025: $1.15 to $1.16, inclusive; 05/12/2025: $1.159 to $1.16, inclusive; 05/20/2025: $1.0498 to $1.05, inclusive; 05/21/2025: $1.02 per share; 05/23/2025: $0.9998 to $1, inclusive. The Reporting Person undertakes to provide IRIDEX CORP, any security holder of IRIDEX CORP, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth above.
3. F3. The amount reported in Column 5 reflects the shares held through Xinpo following the reported transaction. As of the date of this report, the Reporting Person beneficially owns an aggregate of 1,738,238 shares of Common Stock, consisting of 1,186,809 shares held through Xinpo and 551,429 shares held through Novel Inspiration International Co., Ltd.("Novel Inspiration"). The Reporting Person is the sole officer, director and stockholder of Novel Inspiration.

Key Figures

Common shares purchased: 570,184 shares Purchase transactions: 30 Shares purchased: 50,000 shares +4 more

7 metrics

Common shares purchased 570,184 shares Across 30 purchases by Xinpo

Purchase transactions 30 Reported purchases by Xinpo

Shares purchased 50,000 shares June 5, 2025

Price per share $0.9866 Xinpo’s June 5, 2025 purchase

Aggregate beneficial ownership 1,738,238 shares As of the report date

Shares held through Xinpo 1,186,809 shares As of the report date

Shares held through Novel Inspiration 551,429 shares As of the report date

Key Terms

weighted average price, pecuniary interest, beneficial ownership

3 terms

weighted average price financial

"Each price marked with this footnote is a weighted average price"

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.

pecuniary interest financial

"has a pecuniary interest in the shares held by Xinpo"

beneficial ownership regulatory

"aggregate beneficial ownership and do not represent transactions"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

FAQ

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

How many IRIX shares did Xinpo purchase?

Xinpo made 30 open-market purchases totaling 570,184 shares of IRIDEX common stock in the reported transactions. The listed transaction dates run from March 25, 2025, through June 5, 2025.

How many IRIX shares did Lin Shih-Yao David beneficially own?

Lin Shih-Yao David beneficially owned an aggregate of 1,738,238 shares as of the report date: 1,186,809 shares held through Xinpo and 551,429 shares held through Novel Inspiration. Lin was the sole officer, director and stockholder of Novel Inspiration.

Why are some IRIX purchase prices listed as weighted averages?

For purchases marked with the associated footnote, the reported price is a weighted average for multiple open-market purchases on that date. For March 25, 2025, execution prices ranged from $0.931 to $0.94 per share, inclusive.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 10/07/2026 - 06:04 AM Accepted by SEC EDGAR 10/07/2026 - 06:04 AM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Lin Shih-Yao David

(Last) (First) (Middle)

VISTRA CORPORATE SERVICES CENTER

WICKHAMS CAY II

(Street)

ROAD TOWN TORTOLA VG1110

(City) (State) (Zip)

VIRGIN ISLANDS, BRITISH

(Country)

2. Issuer Name and Ticker or Trading Symbol
IRIDEX CORP [ IRIX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/25/2025

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/25/2025		P		5,000	A	$0.9346(2)	5,000(3)	I	By Xinpo(1)
Common Stock	03/26/2025		P		8,834	A	$0.8922(2)	13,834	I	By Xinpo(1)
Common Stock	04/04/2025		P		15,000	A	$0.8899(2)	28,834	I	By Xinpo(1)
Common Stock	04/07/2025		P		10,674	A	$0.8395	39,508	I	By Xinpo(1)
Common Stock	04/08/2025		P		2,995	A	$0.85	42,503	I	By Xinpo(1)
Common Stock	04/09/2025		P		6,226	A	$0.87	48,729	I	By Xinpo(1)
Common Stock	04/10/2025		P		789	A	$0.925	49,518	I	By Xinpo(1)
Common Stock	04/15/2025		P		879	A	$0.97	50,397	I	By Xinpo(1)
Common Stock	04/17/2025		P		20,000	A	$1.02	70,397	I	By Xinpo(1)
Common Stock	04/21/2025		P		7,230	A	$1.02	77,627	I	By Xinpo(1)
Common Stock	04/22/2025		P		1,231	A	$1.02	78,858	I	By Xinpo(1)
Common Stock	04/24/2025		P		50,000	A	$1.2	128,858	I	By Xinpo(1)
Common Stock	04/28/2025		P		6,253	A	$1.22(2)	135,111	I	By Xinpo(1)
Common Stock	04/30/2025		P		4,032	A	$1.18	139,143	I	By Xinpo(1)
Common Stock	05/06/2025		P		11,773	A	$1.15	150,916	I	By Xinpo(1)
Common Stock	05/07/2025		P		26,581	A	$1.1593(2)	177,497	I	By Xinpo(1)
Common Stock	05/08/2025		P		20,000	A	$1.15	197,497	I	By Xinpo(1)
Common Stock	05/09/2025		P		851	A	$1.15	198,348	I	By Xinpo(1)
Common Stock	05/12/2025		P		50,000	A	$1.1595(2)	248,348	I	By Xinpo(1)
Common Stock	05/14/2025		P		50,000	A	$1.1	298,348	I	By Xinpo(1)
Common Stock	05/15/2025		P		39,937	A	$1	338,285	I	By Xinpo(1)
Common Stock	05/16/2025		P		3,176	A	$1	341,461	I	By Xinpo(1)
Common Stock	05/19/2025		P		7,562	A	$1.01	349,023	I	By Xinpo(1)
Common Stock	05/20/2025		P		20,000	A	$1.0499(2)	369,023	I	By Xinpo(1)
Common Stock	05/21/2025		P		3,802	A	$1.02(2)	372,825	I	By Xinpo(1)
Common Stock	05/23/2025		P		80,000	A	$0.9998(2)	452,825	I	By Xinpo(1)
Common Stock	05/28/2025		P		23,526	A	$0.94	476,351	I	By Xinpo(1)
Common Stock	05/29/2025		P		3,719	A	$0.968	480,070	I	By Xinpo(1)
Common Stock	06/02/2025		P		40,114	A	$1	520,184	I	By Xinpo(1)
Common Stock	06/05/2025		P		50,000	A	$0.9866	570,184(3)	I	By Xinpo(1)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The shares are held directly by Xinpo Venture Capital Co., Ltd. ("Xinpo") and indirectly by the Reporting Person. The Reporting Person controls the entire ownership interest in Xinpo, both directly and through family members, and has a pecuniary interest in the shares held by Xinpo.

2. Each price marked with this footnote is a weighted average price for multiple open-market purchases on the stated date. The execution prices were as follows: 03/25/2025: $0.931 to $0.94, inclusive; 03/26/2025: $0.8875 to $0.893, inclusive; 04/04/2025: $0.885 to $0.89, inclusive; 04/28/2025: $1.22 per share; 05/07/2025: $1.15 to $1.16, inclusive; 05/12/2025: $1.159 to $1.16, inclusive; 05/20/2025: $1.0498 to $1.05, inclusive; 05/21/2025: $1.02 per share; 05/23/2025: $0.9998 to $1, inclusive. The Reporting Person undertakes to provide IRIDEX CORP, any security holder of IRIDEX CORP, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth above.

3. The amount reported in Column 5 reflects the shares held through Xinpo following the reported transaction. As of the date of this report, the Reporting Person beneficially owns an aggregate of 1,738,238 shares of Common Stock, consisting of 1,186,809 shares held through Xinpo and 551,429 shares held through Novel Inspiration International Co., Ltd.("Novel Inspiration"). The Reporting Person is the sole officer, director and stockholder of Novel Inspiration.

Remarks:

This Form 4 is the first of three Form 4 filings being filed solely by the Reporting Person to report previously unreported open-market purchases of the Issuer's Common Stock by Xinpo from March 25, 2025 through March 30, 2026. The transactions are divided among three Form 4 filings because SEC's EDGAR filing system permits no more than 30 entries in Table I. The Reporting Person's holdings through Novel Inspiration are disclosed in the Explanation of Responses solely to reconcile the Reporting Person's aggregate beneficial ownership and do not represent transactions reported on this Form 4. This Form 4 is being filed late.

	/s/ LIN SHIH-YAO DAVID	10/07/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)