Executive Chairman of AMS (NYSE: AMS) adds 586K shares in large insider buy

Rhea-AI Filing Summary

AMERICAN SHARED HOSPITAL SERVICES Executive Chairman Raymond C. Stachowiak, a more than 10% owner, reported a large indirect open-market purchase of the company’s common stock. On June 22, 2026, entity RCS/TIG Holdings LLC, associated with Stachowiak, bought 586,468 shares of common stock at $2.28 per share in a private open-market style transaction, bringing its holdings to 586,468 shares.

The filing also updates Stachowiak’s other positions: 760,559 shares are held indirectly through Stachowiak Equity Fund LLC, 752,500 shares are held indirectly through RCS Investments, Inc., and 180,678 shares are held directly. A footnote notes that on May 14, 2026, he transferred 594,000 directly owned shares to RCS Investments, Inc., reorganizing part of his ownership into that entity.

Insights

Insider trading analyst

Large indirect insider buy and ownership reorganization by AMS chair.

Raymond C. Stachowiak, Executive Chairman and more than 10% owner of AMERICAN SHARED HOSPITAL SERVICES, reported an indirect open-market purchase of 586,468 common shares at $2.28 per share via RCS/TIG Holdings LLC. This is a sizable net-buy event in a single transaction.

The filing also details substantial existing holdings: 760,559 shares through Stachowiak Equity Fund LLC, 752,500 shares through RCS Investments, Inc., and 180,678 shares held directly. A footnote states that on May 14, 2026, 594,000 directly owned shares were transferred to RCS Investments, Inc., indicating internal restructuring of his stake rather than a sale into the market.

This pattern combines a meaningful new purchase with consolidation of ownership across entities connected to Stachowiak. The net effect is that entities associated with the Executive Chairman continue to hold a large aggregate position in AMS common stock, while the timing and pricing of the $2.28 purchase may be viewed as an expression of confidence, though actual impact on the share price will depend on broader market conditions.

Insider Trade Summary

Net Buyer: 586,468 shares ($1,337,147)

Net Buy 4 txns

Insider Stachowiak Raymond C

Role Executive Chairman

Bought 586,468 shs ($1.34M)

Type	Security	Shares	Price	Value
Purchase	Common Stock No Par Value	586,468	$2.28	$1.34M
holding	Common Stock No Par Value	--	--	--
holding	Common Stock No Par Value	--	--	--
holding	Common Stock No Par Value	--	--	--

Holdings After Transaction: Common Stock No Par Value — 586,468 shares (Indirect, By RCS/TIG Holdings LLC); Common Stock No Par Value — 180,678 shares (Direct, null)

Footnotes (1)

1. On May 14, 2026, the Reporting Person transferred 594,000 shares directly owned by him to RCS Investments, Inc. The Reporting Person purchased these shares in a private transaction.

Key Figures

Open-market purchase size: 586,468 shares Purchase price: $2.28 per share RCS/TIG Holdings LLC post-transaction holdings: 586,468 shares +4 more

7 metrics

Open-market purchase size 586,468 shares Indirect purchase by RCS/TIG Holdings LLC on June 22, 2026

Purchase price $2.28 per share Price for AMS common stock in June 22, 2026 transaction

RCS/TIG Holdings LLC post-transaction holdings 586,468 shares Indirectly owned by Raymond C. Stachowiak after the reported buy

Stachowiak Equity Fund LLC holdings 760,559 shares Indirect AMS common stock position associated with Stachowiak

RCS Investments, Inc. holdings 752,500 shares Indirect AMS holdings after transfer of directly owned shares

Directly held shares 180,678 shares AMS common stock held directly by Raymond C. Stachowiak

Transferred shares 594,000 shares Direct shares moved to RCS Investments, Inc. on May 14, 2026

Key Terms

open-market purchase, Common Stock No Par Value, indirect, transaction code, +1 more

5 terms

open-market purchase financial

"The Reporting Person purchased these shares in a private transaction."

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock No Par Value financial

"security_title: Common Stock No Par Value"

indirect financial

"ownership_type: indirect"

transaction code regulatory

"transaction_code_description: Unknown transaction code"

private transaction financial

"The Reporting Person purchased these shares in a private transaction."

A private transaction is the sale or transfer of securities, assets, or ownership stakes carried out directly between a small number of parties rather than on a public exchange. For investors it matters because these deals are less visible and often less liquid than public trades, so pricing can be harder to verify, the investment can be harder to sell quickly, and buyers or sellers may gain strategic advantages not available in open markets — like negotiated terms similar to a private garage sale versus a crowded marketplace.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/24/2026 - 04:10 PM Accepted by SEC EDGAR 06/24/2026 - 04:09 PM 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^*

Stachowiak Raymond C

(Last) (First) (Middle)

11515 WIGHTMAN LANE

(Street)

CAPTIVA FLORIDA 33924

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AMERICAN SHARED HOSPITAL SERVICES [ AMS ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/22/2026

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 No Par Value								180,678(1)	D
Common Stock No Par Value								752,500	I	By RCS Investments, Inc.
Common Stock No Par Value								760,559	I	By Stachowiak Equity Fund LLC
Common Stock No Par Value	06/22/2026		P		586,468(2)	A	$2.28	586,468	I	By RCS/TIG Holdings LLC

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. On May 14, 2026, the Reporting Person transferred 594,000 shares directly owned by him to RCS Investments, Inc.

2. The Reporting Person purchased these shares in a private transaction.

	/s/ Craig Tagawa on behalf of Raymond C. Stachowiak	06/24/2026
	** 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)

FAQ

What insider transaction did AMS report for Raymond C. Stachowiak?

AMERICAN SHARED HOSPITAL SERVICES reported that Executive Chairman Raymond C. Stachowiak, through RCS/TIG Holdings LLC, executed an indirect open-market purchase of 586,468 shares of common stock at $2.28 per share on June 22, 2026, increasing that entity’s holdings to 586,468 shares.

At what price did the AMS insider shares trade in the June 22, 2026 Form 4?

The reported AMS insider transaction was priced at $2.28 per share. RCS/TIG Holdings LLC, associated with Executive Chairman Raymond C. Stachowiak, acquired 586,468 common shares at this price in a private open-market style transaction, according to the Form 4 disclosure.

How many AMS shares does RCS/TIG Holdings LLC hold after the Form 4 transaction?

After the reported transaction, RCS/TIG Holdings LLC holds 586,468 shares of AMERICAN SHARED HOSPITAL SERVICES common stock. These shares were acquired in a single purchase on June 22, 2026, at $2.28 per share and are reported as indirectly owned by Raymond C. Stachowiak.

What other AMS shareholdings linked to Raymond C. Stachowiak are disclosed?

The filing shows 760,559 shares held indirectly through Stachowiak Equity Fund LLC, 752,500 shares indirectly through RCS Investments, Inc., and 180,678 shares held directly. Together, these positions indicate substantial ownership in AMERICAN SHARED HOSPITAL SERVICES across multiple related entities.

What does the May 14, 2026 transfer in the AMS Form 4 footnote describe?

A footnote states that on May 14, 2026, Raymond C. Stachowiak transferred 594,000 shares he directly owned to RCS Investments, Inc. This reflects an internal reorganization of his AMS stake into that entity rather than a sale to outside investors, based on the disclosure.

Was the large AMS insider purchase described as an open-market transaction?

Yes. The transaction is coded as a purchase and described as an open-market or private transaction. RCS/TIG Holdings LLC acquired 586,468 AMS common shares at $2.28 per share, and the Form 4 characterizes it as an open-market style acquisition rather than an option exercise or gift.