Avidbank director linked fund sells 56,882 AVBH shares

Avidbank Holdings director Mike Rosinus, through investment entity PTMR Capital Partners LP, reported an open-market sale of 56,882 shares of Common Stock at $27.41 per share.

Rhea-AI Filing Summary

Avidbank Holdings director Mike Rosinus, through investment entity PTMR Capital Partners LP, reported an open-market sale of 56,882 shares of Common Stock at $27.41 per share. After this indirect sale, the filing shows 80 shares held indirectly and 16,680 shares held directly of Avidbank Holdings stock.

The footnote explains that the shares sold were held by PTMR Capital, whose general partners are PTMR GP, LLC and TRF Partners LLC. Rosinus is the sole member of both entities and has sole voting and dispositive power over PTMR Capital’s shares, while disclaiming beneficial ownership beyond any pecuniary interest.

Insider Trade Summary

Net Seller: 56,882 shares

Net Sell 2 txns

Insider ROSINUS MIKE

Role Director

Sold 56,882 shs ($1.56M)

Type	Security	Shares	Price	Value
Sale	Common Stock	56,882	$27.41	$1.56M
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 80 shares (Indirect, See Footnote 1); Common Stock — 16,680 shares (Direct)

Footnotes (1)

1. F1. 1. Such shares are held directly by PTMR Capital Partners LP ("PTMR Capital"), of which the general partners are PTMR GP, LLC ("PTMR GP") and TRF Partners LLC ("TRF"). Reporting Person is the sole member of each of PTMR GP and TRF, and has sole voting and dispositive power over shares held by PTMR Capital. Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest, if any, therein.

FAQ

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What insider transaction did Avidbank Holdings (AVBH) report for Mike Rosinus?

Avidbank Holdings reported that director Mike Rosinus, via PTMR Capital Partners LP, sold 56,882 shares of Common Stock at $27.41 per share. The transaction was an open-market sale and left 80 shares held indirectly and 16,680 shares held directly.

How many Avidbank Holdings (AVBH) shares does Mike Rosinus hold after this Form 4?

After the reported sale, the filing shows 80 shares held indirectly and 16,680 shares held directly for Mike Rosinus. The indirect holdings are through PTMR Capital Partners LP, while the direct position reflects his personal ownership of Avidbank Holdings stock.

Was the Avidbank Holdings (AVBH) transaction by Mike Rosinus a buy or sell?

The transaction was a sale of 56,882 shares of Avidbank Holdings Common Stock in an open-market transaction. It is coded as an “S” transaction, which indicates a sale in the open market or a private transaction under SEC Form 4 rules.

Through which entity were the Avidbank Holdings (AVBH) shares held and sold?

The sold shares were held by PTMR Capital Partners LP, whose general partners are PTMR GP, LLC and TRF Partners LLC. Mike Rosinus is the sole member of both general partners and has sole voting and dispositive power over PTMR Capital’s Avidbank Holdings shares.

Does Mike Rosinus fully own the Avidbank Holdings (AVBH) shares held by PTMR Capital?

The filing states that Mike Rosinus disclaims beneficial ownership of PTMR Capital’s Avidbank Holdings shares except to the extent of his pecuniary interest. He has sole voting and dispositive power, but the economic ownership may be shared with other partners or investors.

What does the transaction code on the Avidbank Holdings (AVBH) Form 4 mean?

The Form 4 uses transaction code “S,” described as a sale in the open market or private transaction. This code confirms that the 56,882 Avidbank Holdings shares associated with PTMR Capital were disposed of through a standard sale rather than a grant, gift, or option exercise.

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Accepted by SEC EDGAR 03/17/2026 - 01:42 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^*

ROSINUS MIKE

(Last) (First) (Middle)

1732 N 1ST STREET

6TH FLOOR

(Street)

SAN JOSE CA 95112

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Avidbank Holdings, Inc. [ AVBH ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
03/16/2026

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

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

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

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	03/16/2026		S		56,882	D	$27.41	80	I	See Footnote 1(1)
Common Stock								16,680	D

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. 1. Such shares are held directly by PTMR Capital Partners LP ("PTMR Capital"), of which the general partners are PTMR GP, LLC ("PTMR GP") and TRF Partners LLC ("TRF"). Reporting Person is the sole member of each of PTMR GP and TRF, and has sole voting and dispositive power over shares held by PTMR Capital. Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest, if any, therein.

Remarks:

	/s/Shawn Zeagler, Attorney-in-fact for Michael F. Rosinus	03/17/2026
	** 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.