ALAB (NASDAQ: ALAB) insider sales by Stefan Dyckerhoff listed in Form 144

Rhea-AI Filing Summary

ALAB reported proposed and recent sales of Common stock in a Form 144 notice, listing securities to be sold and multiple transactions by a named holder. The filing lists selling-party transactions and earlier private placement distributions from Sutter Hill Ventures A CA LP.

Examples in the filing show recent sales by Stefan Dyckerhoff: 11,599 shares on 04/17/2026 for $2,029,828.00, 13,399 shares on 04/20/2026 for $2,346,435.00, 12,499 shares on 05/07/2026 for $2,500,174.00, and 12,499 shares on 06/03/2026 for $4,553,995.00. The filing also records prior private placement receipts and pro‑rata distributions dated 02/07/2020 through 05/17/2022 from Sutter Hill Ventures A CA LP.

Insights

Securities Compliance Attorney

Form 144 documents proposed and recent resale transactions by an affiliate and an individual holder.

The notice lists both securities to be sold and specific sales by a named holder, including dated transactions and dollar amounts. The filing records transfers tied to prior private placements and pro‑rata distributions from Sutter Hill Ventures A CA LP.

Timing and exact proceeds settlement mechanics are not detailed beyond the dates and amounts shown; subsequent filings or broker records would show final settlement status.

Capital Markets Analyst

Disclosure signals recent insider/affiliate liquidity rather than an issuance program.

The filing enumerates individual sales by Stefan Dyckerhoff with share counts and proceeds, and lists securities originating from private placements and venture fund distributions. The presence of multiple dated sales in the past three months is the primary market signal in this excerpt.

Cash‑flow treatment and whether additional shares remain queued for sale are not specified in the excerpt; subsequent Form 4/144 amendments may update totals.

Key Figures

Sale - 04/17/2026: 11,599 shares Proceeds - 04/17/2026: $2,029,828.00 Sale - 04/20/2026: 13,399 shares +5 more

8 metrics

Sale - 04/17/2026 11,599 shares 04/17/2026 sale by Stefan Dyckerhoff

Proceeds - 04/17/2026 $2,029,828.00 Proceeds shown for 11,599 shares

Sale - 04/20/2026 13,399 shares 04/20/2026 sale by Stefan Dyckerhoff

Proceeds - 04/20/2026 $2,346,435.00 Proceeds shown for 13,399 shares

Sale - 05/07/2026 12,499 shares 05/07/2026 sale by Stefan Dyckerhoff

Proceeds - 05/07/2026 $2,500,174.00 Proceeds shown for 12,499 shares

Sale - 06/03/2026 12,499 shares 06/03/2026 sale by Stefan Dyckerhoff

Proceeds - 06/03/2026 $4,553,995.00 Proceeds shown for 12,499 shares

Key Terms

Form 144, Private Placement, Pro‑rata distribution, Selling Securities

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Private Placement financial

"Private Placement | Issuer |"

A private placement is a way for companies to raise money by selling securities directly to a small group of investors instead of through a public offering. This process is often quicker and less regulated, making it similar to offering a special, exclusive investment opportunity to select individuals or institutions. For investors, it can provide access to unique investment options that are not available on public markets.

Pro‑rata distribution financial

"Pro‑rata distribution from Venture Fund"

A pro‑rata distribution is a way of dividing money, shares, or other assets among stakeholders so each person gets a portion that matches their ownership percentage or claim. For investors it ensures fairness: if you own 10% you receive roughly 10% of the payout, like slicing a pie so everyone gets a piece proportional to how much of the pie they bought, which preserves relative ownership and affects expected returns and dilution.

Selling Securities regulatory

"144: Securities Sold During The Past 3 Months"

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Available on EDGAR 07/01/2026 - 03:45 PM Accepted by SEC EDGAR 07/01/2026 - 03:44 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Stifel Nicolaus & Company Inc 501 N Broadway St Louis MO 63102	12499	5624550.00	171410000	07/01/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/07/2020	Private Placement	Issuer			3505	02/07/2020	Cash
Common	08/15/2024	Pro-rata distribution from Venture Fund	Sutter Hill Ventures A CA LP acquired via Issuer via Private Placement			140	08/24/2021	Cash
Common	08/15/2024	Pro-rata distribution from Venture Fund	Sutter Hill Ventures A CA LP acquired via Issuer via Private Placement			2069	11/23/2021	Cash
Common	08/15/2024	Pro-rata distribution from Venture Fund	Sutter Hill Ventures A CA LP acquired via Issuer via Private Placement			6124	05/17/2022	Cash
Common	05/17/2022	Private Placement	Issuer			661	05/17/2022	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Stefan Dyckerhoff 755 Page Mill Rd Ste A200 Palo Alto CA 94304	Common	04/17/2026	11599	2029828.00
Stefan Dyckerhoff 755 Page Mile Rd Ste A200 Palo Alto CA 94304	Common	04/20/2026	13399	2346435.00
Stefan Dyckerhoff 755 Page Mill Rd Ste A200 Palo Alto CA 94304	Common	05/07/2026	12499	2500174.00
Stefan Dyckerhoff 755 Page Mill Rd Ste A200 Palo Alto CA 94304	Common	06/03/2026	12499	4553995.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What did ALAB disclose in this Form 144?

The filing reports proposed and recent sales of Common stock and lists prior private placement distributions. It shows dated transactions and amounts tied to specific holders, including distributions from Sutter Hill Ventures A CA LP.

How many shares did Stefan Dyckerhoff sell recently per the filing?

The excerpt lists multiple sales: 11,599, 13,399, 12,499, and 12,499 shares on specific dates in April–June 2026. Each sale entry includes a dollar figure in the filing.

Does the filing show proceeds from those sales?

Yes. The filing pairs each listed sale with a dollar figure such as $2,029,828.00 for 11,599 shares and $4,553,995.00 for 12,499 shares, as shown in the excerpt.

Who else is named as a source of shares in the filing?

The filing cites prior private placement receipts and pro‑rata distributions from Sutter Hill Ventures A CA LP, with dated entries between 02/07/2020 and 05/17/2022 in the excerpt.