# EDGAR Filing Document

**Accession Number:** 0001555279
**File Stem:** 0001072613-23-000102
**Filing Date:** 2023-2
**Character Count:** 22356
**Document Hash:** 981ba32d2fff6141abd7a0f68eff2a86
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001072613-23-000102.hdr.sgml**: 20230213

**ACCESSION NUMBER**: 0001072613-23-000102

**CONFORMED SUBMISSION TYPE**: SC 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230213

**DATE AS OF CHANGE**: 20230213

**GROUP MEMBERS**: ARCH VENTURE PARTNERS VII, L.P.

**GROUP MEMBERS**: ARCH VENTURE PARTNERS VII, LLC

**GROUP MEMBERS**: CLINTON BYBEE

**GROUP MEMBERS**: KEITH CRANDELL

**GROUP MEMBERS**: ROBERT NELSEN

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** 908 Devices Inc.
- **CENTRAL INDEX KEY:** 0001555279
- **STANDARD INDUSTRIAL CLASSIFICATION:** MEASURING & CONTROLLING DEVICES, NEC [3829]
- **IRS NUMBER:** 454524096
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-92068
- **FILM NUMBER:** 23618371

**BUSINESS ADDRESS:**
- **STREET 1:** 645 SUMMER STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210
- **BUSINESS PHONE:** 978-729-4478

**MAIL ADDRESS:**
- **STREET 1:** 645 SUMMER STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ARCH Venture Fund VII, L.P.
- **CENTRAL INDEX KEY:** 0001402439
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** 8755 W HIGGINS
- **STREET 2:** SUITE 1025
- **CITY:** Chicago
- **STATE:** IL
- **ZIP:** 60631
- **BUSINESS PHONE:** 773-380-6600

**MAIL ADDRESS:**
- **STREET 1:** 8755 W HIGGINS
- **STREET 2:** SUITE 1025
- **CITY:** Chicago
- **STATE:** IL
- **ZIP:** 60631

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Arch Venture Fund VII LP
- **DATE OF NAME CHANGE:** 20070608

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**SCHEDULE 13G**

**Under the Securities Exchange Act of 1934**

&nbsp;&nbsp;&nbsp;&nbsp;**(Amendment No. 2)\***

**908 Devices Inc.**

(Name of Issuer)

**Common Stock par value $0.001 per share**

(Title of Class of Securities)

**65443P102**

(CUSIP Number)

**December 31, 2022**

(Date of Event Which Requires Filing of This Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

☐ Rule 13d-1(b)

☐ Rule 13d-1(c)

☒ Rule 13d-1(d)

\* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act, but shall be subject to all other provisions of the Act (however, see the Notes).

---

| | | |
|:---|:---|:---|
| **CUSIP No. 65443P102** | **13G** | **Page 2 of 11 Pages** |

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---

| | | |
|:---|:---|:---|
| **1** | &nbsp;&nbsp;&nbsp;NAMES OF REPORTING PERSON(S)<br>**ARCH Venture Fund VII, L.P.**<br>|  |
| **2** | &nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br>| (a) ☐<br> (b) ☐ |
| **3** | &nbsp;&nbsp;&nbsp;SEC USE ONLY<br>|  |
| **4** | &nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>**Delaware**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **5** | &nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>**0** <br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **6** | &nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>**5,725,045** <br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **7** | &nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>**0** <br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **8** | &nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>**5,725,045** <br>|

---

---

| | | |
|:---|:---|:---|
| **9** | &nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>**5,725,045**<br>|  |
| **10** | &nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES<br>| ☐ |
| **11** | &nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>**18.1%**<br>|  |
| **12** | &nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>**PN**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **CUSIP No. 65443P102** | **13G** | **Page 3 of 11 Pages** |

---

---

| | | |
|:---|:---|:---|
| **1** | &nbsp;&nbsp;&nbsp;NAMES OF REPORTING PERSON(S)<br>**ARCH Venture Partners VII, L.P.**<br>|  |
| **2** | &nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br>| (a) ☐<br> (b) ☐ |
| **3** | &nbsp;&nbsp;&nbsp;SEC USE ONLY<br>|  |
| **4** | &nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>**Delaware**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **5** | &nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>**0** <br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **6** | &nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>**5,725,045**<br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **7** | &nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>**0** <br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **8** | &nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>**5,725,045**<br>|

---

---

| | | |
|:---|:---|:---|
| **9** | &nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>**5,725,045**<br>|  |
| **10** | &nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES<br>| ☐ |
| **11** | &nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>**18.1%**<br>|  |
| **12** | &nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>**PN**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **CUSIP No. 65443P102** | **13G** | **Page 4 of 11 Pages** |

---

---

| | | |
|:---|:---|:---|
| **1** | &nbsp;&nbsp;&nbsp;NAMES OF REPORTING PERSON(S)<br>**ARCH Venture Partners VII, LLC**<br>|  |
| **2** | &nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br>| (a) ☐<br> (b) ☐ |
| **3** | &nbsp;&nbsp;&nbsp;SEC USE ONLY<br>|  |
| **4** | &nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>**Delaware**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **5** | &nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>**0** <br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **6** | &nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>**5,725,045**<br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **7** | &nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>**0** <br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **8** | &nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>**5,725,045** <br>|

---

---

| | | |
|:---|:---|:---|
| **9** | &nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>**5,725,045**<br>|  |
| **10** | &nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES<br>| ☐ |
| **11** | &nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>**18.1%**<br>|  |
| **12** | &nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>**OO**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **CUSIP No. 65443P102** | **13G** | **Page 5 of 11 Pages** |

---

---

| | | |
|:---|:---|:---|
| **1** | &nbsp;&nbsp;&nbsp;NAMES OF REPORTING PERSON(S)<br>**Keith Crandell**<br>|  |
| **2** | &nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br>| (a) ☐<br> (b) ☐ |
| **3** | &nbsp;&nbsp;&nbsp;SEC USE ONLY<br>|  |
| **4** | &nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>**United States of America**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **5** | &nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>**19,554**<br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **6** | &nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>**5,725,045** <br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **7** | &nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>**19,554**<br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **8** | &nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>**5,725,045**<br>|

---

---

| | | |
|:---|:---|:---|
| **9** | &nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>**5,744,599**<br>|  |
| **10** | &nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES<br>| ☐ |
| **11** | &nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>**18.1%**<br>|  |
| **12** | &nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>**IN**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **CUSIP No. 65443P102** | **13G** | **Page 6 of 11 Pages** |

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---

| | | |
|:---|:---|:---|
| **1** | &nbsp;&nbsp;&nbsp;NAMES OF REPORTING PERSON(S)<br>**Clinton Bybee**<br>|  |
| **2** | &nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br>| (a) ☐<br> (b) ☐ |
| **3** | &nbsp;&nbsp;&nbsp;SEC USE ONLY<br>|  |
| **4** | &nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>**United States of America**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **5** | &nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>**0**<br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **6** | &nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>**5,725,045**<br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **7** | &nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>**0**<br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **8** | &nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>**5,725,045** <br>|

---

---

| | | |
|:---|:---|:---|
| **9** | &nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>**5,725,045**<br>|  |
| **10** | &nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES<br>| ☐ |
| **11** | &nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>**18.1%**<br>|  |
| **12** | &nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>**IN**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **CUSIP No. 65443P102** | **13G** | **Page 7 of 11 Pages** |

---

---

| | | |
|:---|:---|:---|
| **1** | &nbsp;&nbsp;&nbsp;NAMES OF REPORTING PERSON(S)<br>**Robert Nelsen**<br>|  |
| **2** | &nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br>| (a) ☐<br> (b) ☐ |
| **3** | &nbsp;&nbsp;&nbsp;SEC USE ONLY<br>|  |
| **4** | &nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>**United States of America**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **5** | &nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>**0**<br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **6** | &nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>**5,725,045** <br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **7** | &nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>**0** <br>|
| **NUMBER OF <br> SHARES <br> BENEFICIALLY<br> OWNED BY EACH<br> REPORTING<br> PERSON WITH** | **8** | &nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>**5,725,045** <br>|

---

---

| | | |
|:---|:---|:---|
| **9** | &nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>**5,725,045** <br>|  |
| **10** | &nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES<br>| ☐ |
| **11** | &nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>**18.1%**<br>|  |
| **12** | &nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>**IN**<br>|  |

---

---

| | | |
|:---|:---|:---|
| **CUSIP No. 65443P102** | **13G** | **Page 8 of 11 Pages** |

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---

| | |
|:---|:---|
| **Item 1(a).** | <u>**<u>Name of Issuer:</u>**</u> |

---

908 Devices Inc. (the "Issuer").

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| | |
|:---|:---|
| **Item 1(b).** | <u>**<u>Address of Issuer's Principal Executive Offices:</u>**</u> |

---

645 Summer Street, Boston, MA 02210

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| | |
|:---|:---|
| **Item 2(a).** | <u>**<u>Name of Person Filing:</u>**</u> |

---

ARCH Venture Fund VII, L.P. ("ARCH Venture Fund VII"); ARCH Venture Partners VII, L.P. ("AVP VII LP"); ARCH Venture Partners VII, LLC ("AVP VII LLC") (collectively, the "Reporting Entities" and individually, each a "Reporting Entity"); and Keith Crandell ("Crandell"), Robert Nelsen ("Nelsen") and Clinton Bybee ("Bybee") (collectively, the "Managing Directors" and individually, each a "Managing Director"). The Reporting Entities and the Managing Directors collectively are referred to as the "Reporting Persons".

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| | |
|:---|:---|
| **Item 2(b).** | <u>**<u>Address of Principal Business Office or, if none, Residence:</u>**</u> |

---

8755 W. Higgins Road, Suite 1025, Chicago, IL 60631

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| | |
|:---|:---|
| **Item 2(c).** | <u>**<u>Citizenship:</u>**</u> |

---

ARCH Venture Fund VII and AVP VII LP are limited partnerships organized under the laws of the State of Delaware. AVP VII LLC is a limited liability companies organized under the laws of the State of Delaware. Each Managing Director is a US citizen.

---

| | |
|:---|:---|
| **Item 2(d).** | <u>**<u>Title of Class of Securities.</u>**</u> |

---

Common stock, par value $0.001 per share.

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| | |
|:---|:---|
| **Item 2(e).** | <u>**<u>CUSIP Number.</u>**</u> |

---

65443P102

**Item 3.** <u>**<u>If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a:</u>**</u>

Not Applicable.

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| | | |
|:---|:---|:---|
| **CUSIP No. 65443P102** | **13G** | **Page 9 of 11 Pages** |

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**Item 4.** <u>**<u>Ownership:</u>**</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Amount beneficially owned: ARCH Venture Fund VII is the record owner of 5,725,045 shares of Common
Stock (the "Record Shares") as of December 31, 2022. AVP VII LP, as the sole general partner of ARCH Venture Fund VII, may
be deemed to beneficially own the Record Shares. AVP VII LLC, as the sole general partner of AVP VII, may be deemed to beneficially own
the Record Shares. As managing directors of AVP VII LLC, each Managing Director may also be deemed to share the power to direct the disposition
and vote of the Record Shares. In addition, as of December 31, 2022, Crandell is a holder of vested options to purchase 19,554 shares
of Common Stock (the "Vested Option Shares").

(b) Percent of class: See line 11 of the cover sheets. The percentages set forth on the cover
sheet for each Reporting Person (other than Crandell) is based upon 31,711,284 shares of common stock outstanding as of November 9, 2022,
as reported on the Issuer's Form 10-Q as filed with the Securities and Exchange Commission on November 14, 2022. For Crandell, the
Vested Option Shares were included in the number of shares of Common stock outstanding.

(c) Number of shares as to which such person has:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Sole power to vote or to direct the vote: See line 5 of the cover sheets.

(ii) Shared power to vote or to direct the vote: See line 6 of the cover sheets.

(iii) Sole power to dispose or to direct the disposition: See line 7 of the cover sheets.

(iv) Shared power to dispose or to direct the disposition: See line 8 of the cover sheets.

Each Reporting Person disclaims beneficial ownership of such shares of Common Stock except for the shares, if any, such Reporting Person holds of record.

**Item 5.** <u>**<u>Ownership of Five Percent or Less of a Class.</u>**</u>

Not applicable.

**Item 6.** <u>**<u>Ownership of More than Five Percent on Behalf of Another Person.</u>**</u>

Not applicable.

**Item 7.** <u>**<u>Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company.</u>**</u>

Not applicable.

**Item 8.** <u>**<u>Identification and Classification of Members of the Group.</u>**</u>

Not applicable.

**Item 9.** <u>**<u>Notice of Dissolution of Group.</u>**</u>

Not applicable.

**Item 10.** <u>**<u>Certifications.</u>**</u>

Not applicable.

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| | | |
|:---|:---|:---|
| **CUSIP No. 65443P102** | **13G** | **Page 10 of 11 Pages** |

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**<u>SIGNATURE</u>**

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 13, 2023

ARCH VENTURE FUND VII, L.P.

By: ARCH Venture Partners VII, L.P.

its General Partner

By: ARCH Venture Partners VII, LLC

its General Partner

By: <u>\*</u> 

Keith Crandell

Managing Director

ARCH VENTURE PARTNERS VII, L.P.

By: ARCH Venture Partners VII, LLC

its General Partner

By: <u>\*</u> 

Keith Crandell

Managing Director

ARCH VENTURE PARTNERS VII, LLC

By: <u>\*</u> 

Keith Crandell

Managing Director

&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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>\*</u> 

Keith Crandell

&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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>\*</u> 

Robert Nelsen

&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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>\*</u> 

Clinton Bybee

\* By: <u>/s/ Mark McDonnell</u> 

Mark McDonnell as

Attorney-in-Fact

This Schedule 13G was executed by Mark McDonnell pursuant to Powers of Attorney included as Exhibit 2 to the Form 13G relating to the beneficial ownership of shares of 908 Devices Inc. by the Reporting Persons filed with the Securities and Exchange Commission on February 4, 2021, and incorporated herein in its entirety by reference.

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| | | |
|:---|:---|:---|
| **CUSIP No. 65443P102** | **13G** | **Page 11 of 11 Pages** |

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**<u>Exhibit 1</u>**

**<u>AGREEMENT</u>**

Pursuant to Rule 13d-1-(k)(1) under the Securities Exchange Act of 1934, the undersigned hereby agree that only one statement containing the information required by Schedule 13G need be filed with respect to the ownership by each of the undersigned of shares of stock of 908 Devices Inc.

This Agreement may be executed in any number of counterparts, each of which shall be deemed an original.

Dated: February 13, 2023

ARCH VENTURE FUND VII, L.P.

By: ARCH Venture Partners VII, L.P.

its General Partner

By: ARCH Venture Partners VII, LLC

its General Partner

By: <u>\*</u> 

Keith Crandell

Managing Director

ARCH VENTURE PARTNERS VII, L.P.

By: ARCH Venture Partners VII, LLC

its General Partner

By: <u>\*</u> 

Keith Crandell

Managing Director

ARCH VENTURE PARTNERS VII, LLC

By: <u>\*</u> 

Keith Crandell

Managing Director

&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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>\*</u> 

Keith Crandell

&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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>\*</u> 

Robert Nelsen

&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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>\*</u> 

Clinton Bybee

\* By: <u>/s/ Mark McDonnell</u> 

Mark McDonnell as

Attorney-in-Fact

This Agreement was executed by Mark McDonnell pursuant to Powers of Attorney included as Exhibit 2 to the Form 13G relating to the beneficial ownership of shares of 908 Devices Inc. by the Reporting Persons filed with the Securities and Exchange Commission on February 4, 2021, and incorporated herein in its entirety by reference.