# EDGAR Filing Document

**Accession Number:** 0001114995
**File Stem:** 0001193125-26-042927
**Filing Date:** 2026-2
**Character Count:** 20354
**Document Hash:** 06a58bca4fac8d2d6856c3a21c51df17
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-042927.hdr.sgml**: 20260209

**ACCESSION NUMBER**: 0001193125-26-042927

**CONFORMED SUBMISSION TYPE**: S-8

**PUBLIC DOCUMENT COUNT**: 15

**FILED AS OF DATE**: 20260209

**DATE AS OF CHANGE**: 20260209

**EFFECTIVENESS DATE**: 20260209

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** IMPINJ INC
- **CENTRAL INDEX KEY:** 0001114995
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRONIC COMPONENTS, NEC [3679]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 912041398
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** S-8
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-293311
- **FILM NUMBER:** 26612076

**BUSINESS ADDRESS:**
- **STREET 1:** 400 FAIRVIEW AVENUE NORTH
- **STREET 2:** SUITE 1200
- **CITY:** SEATTLE
- **STATE:** WA
- **ZIP:** 98109
- **BUSINESS PHONE:** 206-517-5300

**MAIL ADDRESS:**
- **STREET 1:** 400 FAIRVIEW AVENUE NORTH
- **STREET 2:** SUITE 1200
- **CITY:** SEATTLE
- **STATE:** WA
- **ZIP:** 98109

**As filed with the Securities and Exchange Commission on February 9, 2026**

**Registration No. 333-** 

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**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

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**FORM S-8**

**REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933**

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**IMPINJ, INC.** 

**(Exact name of Registrant as specified in its charter)** 

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| | |
|:---|:---|
| **Delaware** | **91-2041398** |
| **(State or other jurisdiction of**<br>**incorporation or organization)** | **(I.R.S. Employer**<br>**Identification No.)** |

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| | |
|:---|:---|
| <br>**400 Fairview Avenue North, Suite 1200**  | **98109** |
| **Seattle, Washington 98109** <br>**(Address of principal executive offices)** | **(Zip Code)** |

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**2016 Equity Incentive Plan** 

**2016 Employee Stock Purchase Plan** 

**(Full title of the plan)** 

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**Chris Diorio, Ph.D.** 

**Chief Executive Officer** 

**400 Fairview Avenue North, Suite 1200** 

**Seattle, Washington 98109** 

**(206) 517-5300**

**(Name, address and telephone number, including area code, of agent for service)** 

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***Copies to:*** 

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| | |
|:---|:---|
| **Patrick J. Schultheis**<br>**Michael Nordtvedt**<br>**Wilson Sonsini Goodrich & Rosati**<br>**Professional Corporation**<br>**701 Fifth Avenue, Suite 5100**<br>**Seattle, Washington 98104-7036**<br>**(206) 883-2500** | **Yukio Morikubo**<br>**General Counsel**<br>**Impinj, Inc.**<br>**400 Fairview Avenue North, Suite 1200**<br>**Seattle, Washington 98109**<br>**(206) 517-5300** |

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Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

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| | | | |
|:---|:---|:---|:---|
| Large accelerated filer | ☒ | Accelerated filer | ☐ |
| Non-accelerated filer | ☐ | Smaller reporting company | ☐ |
|  |  | Emerging growth company | ☐ |

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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

**REGISTRATION OF ADDITIONAL SECURITIES** 

**PURSUANT TO GENERAL INSTRUCTION E** 

This Registration Statement is being filed for the purpose of increasing the number of securities of the same class for which Registration Statements on Form S-8 relating to the 2016 Equity Incentive Plan (the "**2016 Plan**") and 2016 Employee Stock Purchase Plan (the "**2016 ESPP**") of Impinj, Inc. (the **"Registrant"**) are effective. Accordingly, the contents of the previous Registration Statements on Form S-8 filed by the Registrant with the Securities and Exchange Commission (the "**Commission**") on July 21, 2016 (File No. 333-212620), March 10, 2017 (File No. 333-216620), May 10, 2018 (File No. 333-224842), February 28, 2019 (File No. 333-229947), March 2, 2020 (File No. 333-236832), February 17, 2021 (File No. 333-253214), February 14, 2022 (File No. 333-262715), February 13, 2023 (File No. 333-269733), February 12, 2024 (File No. 333-277017) and February 10, 2025 (File No. 333-284804) (collectively, the "**Previous Registration Statements**"), including periodic reports filed after the Previous Registration Statements to maintain current information about the Registrant, are incorporated by reference into this Registration Statement pursuant to General Instruction E of Form S-8 (the "**Registration Statement**").

**PART II** 

**INFORMATION REQUIRED IN THE REGISTRATION STATEMENT** 

**Item 3. Incorporation of Documents by Reference.** 

The Registrant hereby incorporates by reference into this Registration Statement the following documents previously filed with the Commission:

(1) The Registrant's Annual Report on [<u>Form 10-K</u>](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001114995/000119312526042813/pi-20251231.htm) for the fiscal year ended December 31, 2025, filed with the Commission on February 9, 2026 (the "**Annual Report**");

(2) All other reports filed with the Commission pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the **"Exchange Act"**) since the end of the fiscal year covered by the Annual Report (other than the portions of these documents not deemed to be filed); and

(3) The description of the Registrant's common stock, par value $0.001 per share, contained in the Company's Registration Statement on [<u>Form 8-A</u>](https://www.sec.gov/Archives/edgar/data/1114995/000119312516644875/d201122d8a12b.htm) (File No. 001-37824) filed with the Commission on July 11, 2016, pursuant to Section 12(b) of the Exchange Act, including any amendment or report filed for the purpose of updating such description.

All documents filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act on or after the date of this Registration Statement and prior to the filing of a post-effective amendment to this Registration Statement that indicates that all securities offered have been sold or that deregisters all securities then remaining unsold shall be deemed to be incorporated by reference in this Registration Statement and to be a part hereof from the date of filing of such documents; *provided*, *however*, that documents or information deemed to have been furnished and not filed in accordance with the rules of the Commission shall not be deemed incorporated by reference into this Registration Statement. Any statement contained in a

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document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any subsequently filed document which also is deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.

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**Item 8. Exhibits.** 

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Exhibit**<br>**Number** | **Exhibit Description** | **Form** | **Incorporated by**<br>**Reference** | **Incorporated by**<br>**Reference** | **Filing Date** |
| **Exhibit**<br>**Number** | **Exhibit Description** | **Form** | **File No.** | **Exhibit** | **Filing Date** |
| 4.1 (a) | [<u>Amended and Restated Certificate of Incorporation of the Registrant, as filed with the Secretary of State of the State of Delaware on June 10, 2020</u>](https://www.sec.gov/Archives/edgar/data/1114995/000156459020029181/pi-ex31_6.htm) | 8-K | 001-37824 | 3.1 | June 12, 2020 |
| 4.1 (b) | [<u>Certificate of Amendment to the Amended and Restated Certificate of Incorporation of Impinj, Inc., as filed with the Secretary of State of the State of Delaware on June 6, 2024.</u>](https://www.sec.gov/Archives/edgar/data/1114995/000095017024070592/pi-ex3_1.htm) | 8-K | 001-37824 | 3.1 | June 7, 2024 |
| 4.2 | [<u>Amended and Restated Bylaws of the Registrant, adopted as of February 23, 2023</u>](https://www.sec.gov/Archives/edgar/data/1114995/000095017023005139/pi-ex3_1.htm). | 8-K | 001-37824 | 3.1 | February 28, 2023 |
| 4.3 | [<u>Specimen Common Stock Certificate of the Registrant.</u>](https://www.sec.gov/Archives/edgar/data/1114995/000119312516644860/d94993dex41.htm) | S-1/A | 333-211779 | 4.1 | July 11, 2016 |
| 4.4 | [<u>2016 Equity Incentive Plan.</u>](https://www.sec.gov/Archives/edgar/data/1114995/000119312516644860/d94993dex107.htm) | S-1/A | 333-211779 | 10.7 | July 11, 2016 |
| 4.5 | [<u>Form of Notice of Stock Option Grant and Stock Option Agreement under the 2016 Equity Incentive Plan.</u>](https://www.sec.gov/Archives/edgar/data/1114995/000119312516644860/d94993dex108.htm) | S-1/A | 333-211779 | 10.8 | July 11, 2016 |
| 4.6 | [<u>Form of Notice of Restricted Stock Unit Grant and Restricted Stock Unit Agreement under the 2016 Equity Incentive Plan.</u>](https://www.sec.gov/Archives/edgar/data/1114995/000156459017017636/pi-ex101_447.htm) | &nbsp;&nbsp;&nbsp;&nbsp; 10-Q | &nbsp;&nbsp;&nbsp;&nbsp; 001-37824 | 10.1 | August 14, 2017 |
| 4.7 | [<u>2016 Employee Stock Purchase Plan.</u>](https://www.sec.gov/Archives/edgar/data/1114995/000119312516644860/d94993dex109.htm) | S-1/A | 333-211779 | 10.9 | July 11, 2016 |
| 5.1 | [<u>Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation.</u>](pi-ex5_1.htm) |  |  |  |  |
| 23.1 | [<u>Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm.</u>](pi-ex23_1.htm) |  |  |  |  |
| 24.1 | [<u>Power of Attorney (contained on signature page hereto).</u>](#poa) |  |  |  |  |
| 107 | [<u>Filing Fee Table.</u>](pi_exfilingfees.htm) |  |  |  |  |

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**SIGNATURES** 

Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Seattle, State of Washington, on the 9th day of February, 2026.

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| | |
|:---|:---|
| Impinj, Inc. | Impinj, Inc. |
| By: | */s/ Cary Baker* |
|  | Cary Baker |
|  | Chief Financial Officer |

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**POWER OF ATTORNEY** 

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Chris Diorio, Ph.D. and Cary Baker, and each of them, as his or her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution and full power to act without the other, for him or her and in his or her name, place and stead, in any and all capacities (including his or her capacity as a director or officer of Impinj, Inc.) to sign any or all amendments (including post-effective amendments) to this Registration Statement, and to file the same, with all exhibits thereto, and all other documents in connection therewith, with the Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as they, he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agents or any of them, or their, his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-8 has been signed by the following persons in the capacities and on the dates indicated.

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp;**Signature** | &nbsp;&nbsp;**Title** | &nbsp;&nbsp;**Date** |
| */s/ Chris Diorio*<br>Chris Diorio, Ph.D. | Chief Executive Officer, Vice Chair and Director<br>(*Principal Executive Officer*) | February 9, 2026 |
| */s/ Cary Baker*<br>Cary Baker | Chief Financial Officer<br>(*Principal Financial and Accounting Officer*) | February 9, 2026<br>|
| */s/ Steve Sanghi*<br>Steve Sanghi | Chair | February 9, 2026<br>|
| */s/ Miron L. Washington*<br>Miron L. Washington | Director | February 9, 2026<br>|

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| | | |
|:---|:---|:---|
| */s/ Daniel Gibson* <br>Daniel Gibson | Director | February 9, 2026<br>|

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| | | |
|:---|:---|:---|
| */s/ Umesh Padval* <br>Umesh Padval | Director | February 9, 2026<br>|

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| | | |
|:---|:---|:---|
| */s/ Meera Rao*<br>Meera Rao | Director | February 9, 2026<br>|

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| | | |
|:---|:---|:---|
| */s/ Arthur Valdez, Jr.*<br>Arthur Valdez, Jr. | Director | February 9, 2026<br>|

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## Exhibit 5.1

**Exhibit 5.1**

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| | |
|:---|:---|
| &nbsp;&nbsp; <br>![img160106035_0.gif](img160106035_0.gif)<br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>Wilson Sonsini Goodrich & Rosati<br>Professional Corporation<br>701 Fifth Avenue<br>Suite 5100<br>Seattle, Washington 98104-7036<br>o: 206.883.2500<br>f: 866.974.7329 |

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February 9, 2026

Impinj, Inc.<br>400 Fairview Avenue North, Suite 1200<br>Seattle, Washington 98109

**Re: Registration Statement on Form S-8**

Ladies and Gentlemen:

We have examined the Registration Statement on Form S-8 (the "Registration Statement") to be filed by Impinj, Inc., a Delaware corporation, with the Securities and Exchange Commission (the "Commission") on or about the date hereof, in connection with the registration under the Securities Act of 1933, as amended (the "Act"), of an aggregate of 1,813,295 shares of your common stock, par value $0.001 per share (the "Shares"), consisting of: (1) 1,511,079 shares of common stock to be issued under the 2016 Equity Incentive Plan (the "2016 Plan") and (2) 302,216 shares of common stock to be issued under the 2016 Employee Stock Purchase Plan (the "2016 ESPP," and together with the 2016 Plan, the "Plans"). As your legal counsel, we have reviewed the actions proposed to be taken by you in connection with the issuance and sale of the Shares to be issued under the Plans.

On the basis of the foregoing, and in reliance thereon, we are of the opinion that the Shares, when issued and sold in the manner referred to in the Plans and pursuant to the agreements that accompany the Plans, will be legally and validly issued, fully paid and nonassessable.

We consent to the use of this opinion as an exhibit to the Registration Statement, and further consent to the use of our name wherever appearing in the Registration Statement and in any amendments thereto. In giving such consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Act or the rules and regulations of the Commission thereunder.

Very truly yours,

WILSON SONSINI GOODRICH & ROSATI

Professional Corporation

/s/ Wilson Sonsini Goodrich & Rosati, P.C.

austin boston BOULDER brussels hong kong london los angeles new york palo alto<br>SALT LAKE CITY san diego san francisco seattle shanghai washington, dc wilmington, de

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## Exhibit 23.1

**Exhibit 23.1**

**Consent of Independent Registered Public Accounting Firm** 

We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the 2016 Equity Incentive Plan and the 2016 Employee Stock Purchase Plan of Impinj, Inc. of our reports dated February 9, 2026 with respect to the consolidated financial statements of Impinj, Inc. and the effectiveness of internal control over financial reporting of Impinj, Inc. included in its Annual Report (Form 10-K) for the year ended December 31, 2025, filed with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

Seattle, Washington

February 9, 2026

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## Ex-Filing

?xml version='1.0' encoding='ASCII'? EX-FILING FEES

**Exhibit 107**

**Calculation of** Filing Fee **Tables**

**Form** S-8

(Form Type)

Impinj, Inc.

(Exact name of registrant as specified in its charter)

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;**Table 1 – Newly Registered Securities** | &nbsp;&nbsp;**Table 1 – Newly Registered Securities** | &nbsp;&nbsp;**Table 1 – Newly Registered Securities** | &nbsp;&nbsp;**Table 1 – Newly Registered Securities** | &nbsp;&nbsp;**Table 1 – Newly Registered Securities** | &nbsp;&nbsp;**Table 1 – Newly Registered Securities** | &nbsp;&nbsp;**Table 1 – Newly Registered Securities** |
| &nbsp;&nbsp;Security Type | &nbsp;&nbsp;**Security Class Title** | &nbsp;&nbsp;**Fee Calculation Rule**<br> &nbsp;&nbsp;**Amount Registered**<sup>(1)</sup><br>| &nbsp;&nbsp;**Proposed Maximum Offering Price Per Unit** | &nbsp;&nbsp;**Maximum Aggregate Offering Price** | &nbsp;&nbsp;**Fee Rate** | &nbsp;&nbsp;**Amount of Registration Fee** |
| &nbsp;&nbsp;Equity | &nbsp;&nbsp;Common Stock, $0.001 par value per share, reserved for issuance under the 2016 Equity Incentive Plan | &nbsp;&nbsp;Rule 457(c) and Rule 457(h)<br> &nbsp;&nbsp;1511079<sup>(2)</sup> | &nbsp;&nbsp;$116.88<sup>(4)</sup> | &nbsp;&nbsp;$176614913.52 | &nbsp;&nbsp;$138.10 per $1,000,000 | &nbsp;&nbsp;$24391.00 |
| &nbsp;&nbsp;Equity  | &nbsp;&nbsp;Common Stock, $0.001 par value per share, reserved for issuance under the 2016 Employee Stock Purchase Plan | &nbsp;&nbsp;Rule 457(c) and Rule 457(h)<br> &nbsp;&nbsp;302216<sup>(3)</sup> | &nbsp;&nbsp;$99.35<sup>(5)</sup> | &nbsp;&nbsp;$30025159.60 | &nbsp;&nbsp;$138.10 per $1,000,000 | &nbsp;&nbsp;$4147.00 |
| &nbsp;&nbsp;**Total Offering Amounts** | &nbsp;&nbsp;**Total Offering Amounts** | &nbsp;&nbsp;**Total Offering Amounts** |  | &nbsp;&nbsp;$206640073.12 |  | &nbsp;&nbsp;$28538.00 |
| &nbsp;&nbsp;**Total Fee Offsets** | &nbsp;&nbsp;**Total Fee Offsets** | &nbsp;&nbsp;**Total Fee Offsets** |  |  |  | &nbsp;&nbsp;– |
| &nbsp;&nbsp;**Net Fee Due** | &nbsp;&nbsp;**Net Fee Due** | &nbsp;&nbsp;**Net Fee Due** |  |  |  | &nbsp;&nbsp;$28538.00 |

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(1)Pursuant to Rule 416(a) of the Securities Act of 1933, as amended (the "**Securities Act**"), this registration statement on Form S-8 shall also cover any additional shares of the registrant's common stock that become issuable under the 2016 Equity Incentive Plan (the "**2016 Plan**") and the 2016 Employee Stock Purchase Plan (the "**2016 ESPP**") by reason of any stock dividend, stock split, recapitalization or other similar transaction effected without the registrant's receipt of consideration that increases the number of the registrant's outstanding shares of common stock.

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(2)Reflects an automatic annual increase to the number of shares of our common stock reserved for issuance pursuant to future awards under the 2016 Plan, which annual increase is provided for in the 2016 Plan.

(3)Reflects an automatic annual increase to the number of shares of our common stock reserved for issuance under the 2016 ESPP, which annual increase is provided for in the 2016 ESPP.

(4)Estimated in accordance with Rules 457(c) and 457(h) of the Securities Act solely for purposes of calculating the registration fee on the basis of $116.88, the average of the high and low prices of our common stock, as reported on the Nasdaq Global Select Market on February 6, 2026.

(5)Estimated in accordance with Rules 457(c) and 457(h) of the Securities Act solely for purposes of calculating the registration fee on the basis of 85% of $116.88, the average of the high and low prices of our common stock, as reported on the Nasdaq Global Select Market on February 6, 2026. Pursuant to the 2016 ESPP, the purchase price of the shares of common stock reserved for issuance thereunder will be 85% of the lower of the fair market value of our common stock on (a) the first trading day of the offering period and (b) the end of each purchase period within the offering period.

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