Private company

Spectaire Holdings Inc.

Spectaire Holdings Inc. is a measuring and controlling devices company.¹ It is headquartered in Minneapolis, Minnesota.¹

Last updated Oct 20, 2026.

Overview

IndustryMeasuring & Controlling Devices, NEC¹
HeadquartersMinneapolis, Minnesota¹
Business address3109 W 50Th St., #207, Minneapolis, Mn 55410²
Filer category, Emerging growth company²

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Ian Hunter. Our asset-light business model delivers a win-win-win for Spectaire, for our customers, and for the environment.³ From its latest annual report

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Financial statements

Operating income⁴⁵-$16.7M in 2023+5194% since 2021

Net income⁴⁵$9.0M in 2023

Fiscal year	2021	2022	2023
Research and development		$967.8K⁵	$3.5M⁵
Operating expenses		$1.1M⁵	$16.7M⁵
Operating income	-$316.0K⁴	-$1.1M⁵	-$16.7M⁵
Interest			$6.3M⁵
Net income	-$313.3K⁴	-$415.9K⁵	$9.0M⁵
Earnings per share		-$0.14⁵	$1.07⁵
Earnings per share (diluted)		-$0.14⁵	$0.75⁵
Shares (weighted, basic)		3.1M shares⁵	8.3M shares⁵
Shares (weighted, diluted)		3.1M shares⁵	11.9M shares⁵

Total assets⁴⁵$1.4M in 2023−99% since 2021

Total liabilities⁴⁵$28.6M in 2023+238% since 2021

Shareholders’ equity⁵-$27.2M in 2023+3690% since 2020

Cash⁵$343.0K in 2023+21% since 2021

Fiscal year	2020	2021	2022	2023	2024
Cash		$282.5K⁵	$18.9K⁵	$343.0K⁵
Inventory				$243.4K⁵
Current assets		$1.2M⁴	$24.8K⁵	$1.2M⁵
Property, plant and equipment			$18.8K⁵	$67.2K⁵
Total assets		$234.7M⁴	$55.2K⁵	$1.4M⁵
Accounts payable		$10.0K⁴	$783.1K⁴
Current liabilities		$417.1K⁴	$849.1K⁵	$26.5M⁵
Total liabilities		$8.5M⁴	$849.1K⁵	$28.6M⁵
Retained earnings		-$7.2M⁴	-$1.1M⁵	-$27.2M⁵
Shareholders’ equity	-$717.5K⁵	-$717.5K⁵	-$793.9K⁵	-$27.2M⁵
Shares outstanding			6.2M shares⁵	15.3M shares⁵	15.3M shares⁵

Cash from operations⁴⁵-$7.4M in 2023+1199% since 2021

Capital spending⁵$69.5K in 2023+783% since 2022

Free cash flow⁵-$7.4M in 2023+1892% since 2022

Fiscal year	2021	2022	2023
Cash from operations	-$567.8K⁴	-$365.8K⁵	-$7.4M⁵
Stock-based compensation		$226.2K⁵	$6.8M⁵
Capital spending		$7.9K⁵	$69.5K⁵
Free cash flow		-$373.7K	-$7.4M
Cash from investing	-$233.4M⁴	$42.2K⁵	-$24.7K⁵
Cash from financing	$234.8M⁴	$60.0K⁵	$7.7M⁵

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Corporate structure

Spectaire Holdings Inc. sits at the top of its group. 1 entity on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of Spectaire Holdings Inc.

Polar Asset Management Partners Inc. Filed SC 13G/A on Spectaire Holdings Inc., latest Nov 14, 2024 (3 filings since Feb 13, 2023)
AQR CAPITAL MANAGEMENT LLC Filed SC 13G/A on Spectaire Holdings Inc., latest Feb 14, 2024 (2 filings since Feb 14, 2023)
PERISCOPE CAPITAL INC. Filed SC 13G/A on Spectaire Holdings Inc., latest Feb 9, 2024 (2 filings since Feb 13, 2023)
Perception Capital Partners II LLC Filed SC 13D on Spectaire Holdings Inc., latest Oct 30, 2023 (2 filings since Feb 14, 2022)
Owl Creek Asset Management, L.P. Filed SC 13G/A on Spectaire Holdings Inc., latest Sep 8, 2023 (2 filings since May 2, 2023)
METEORA CAPITAL, LLC Filed SC 13G on Spectaire Holdings Inc., latest Feb 16, 2023
Saba Capital Management, L.P. Filed SC 13G/A on Spectaire Holdings Inc., latest Feb 14, 2023 (4 filings since Nov 5, 2021)
Shaolin Capital Management LLC Filed SC 13G on Spectaire Holdings Inc., latest Feb 14, 2023
ADAGE CAPITAL PARTNERS GP, L.L.C. Filed SC 13G/A on Spectaire Holdings Inc., latest Feb 9, 2023 (2 filings since Nov 12, 2021)
HIGHBRIDGE CAPITAL MANAGEMENT LLC Filed SC 13G/A on Spectaire Holdings Inc., latest Jan 25, 2023 (3 filings since Nov 12, 2021)
MILLENNIUM MANAGEMENT LLC Filed SC 13G/A on Spectaire Holdings Inc., latest Jan 18, 2023 (2 filings since Feb 25, 2022)
Barclays Filed SC 13G on Spectaire Holdings Inc., latest Feb 11, 2022

Spectaire Holdings Inc. Minneapolis, Minnesota

Built from major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Spectaire Holdings Inc. reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

Item	Latest	A year before	Change
Property and equipment, before depreciation	$102.2K⁵ Dec 31, 2023	$32.7K⁵ Dec 31, 2022	+212.4%
Accumulated depreciation	$35.0K⁵ Dec 31, 2023	$13.9K⁵ Dec 31, 2022	+152.0%
Property and equipment, net	$67.2K⁵ Dec 31, 2023	$18.8K⁵ Dec 31, 2022	+257.1%
Operating-lease assets (leased space)	$205.1K⁵ Dec 31, 2023

Investments

Item	Latest	A year before	Change
Cash and cash equivalents	$343.0K⁵ Dec 31, 2023	$18.9K⁵ Dec 31, 2022	+1716.1%

Inventory

Item	Latest	A year before	Change
Inventory, total	$243.4K⁵ Dec 31, 2023
Work in process	$173.4K⁵ Dec 31, 2023
Finished goods	$291.5K⁵ Dec 31, 2023

Leadership

Who has led Spectaire Holdings Inc., and when. Pick a name to see everywhere that person has worked.

Chief executive

Chair

Brian Semkiw2023

President

James J. Sheridan Iii.2021

Chief financial officer

2025

Chief executive officerBrian Semkiw Oct 23, 2023 to Oct 26, 2023⁹
Chief executive officerRick Gaenzle Oct 27, 2021 to Oct 27, 2021¹⁰
ChairBrian Semkiw Oct 23, 2023 to Oct 26, 2023⁹
PresidentJames J. Sheridan Iii. Oct 29, 2021 to Oct 29, 2021¹¹
Chief financial officerLeonardo Fernandes Oct 23, 2023 to Oct 23, 2023¹²
Chief financial officerCorey Campbell Oct 29, 2021 to Oct 29, 2021¹³

Board members and other officers (14)

Chief Technology OfficerBrian Hemond Oct 23, 2023 to Oct 23, 2023¹⁴
Chief Commercial OfficerChristopher Grossman Oct 23, 2023 to Oct 23, 2023¹⁵
Chief Information OfficerRui Mendes Oct 23, 2023 to Oct 23, 2023¹⁶
Board memberBrian Hemond Oct 23, 2023 to Oct 23, 2023¹⁴
Board memberGianfranco Baldesarra Oct 23, 2023 to Oct 23, 2023¹⁷
Board memberJoerg Mosolf Oct 23, 2023 to Oct 26, 2023¹⁸
Board memberTao Tan Oct 23, 2023 to Oct 23, 2023¹⁹
Board memberKarrie Willis Nov 21, 2022 to Nov 21, 2022²⁰
Board memberRick Gaenzle Oct 27, 2021 to Oct 27, 2021¹⁰
Board memberScott Honour Oct 27, 2021 to Oct 23, 2023²¹
Board memberThomas J. Abood Oct 27, 2021 to Oct 18, 2023²²
Board memberMarcy Haymaker Oct 29, 2021 to Oct 23, 2023²³
Board memberOmer Keilaf Oct 29, 2021 to Oct 18, 2023²⁴
Board memberRudolph R. Reinfrank Nov 10, 2021 to Oct 18, 2023²⁵

Former names

Perception Capital Corp. IIFeb 16, 2021 to Oct 13, 2023²

Timeline

Jan 30, 20258-K Debt or obligation accelerated²⁶
Dec 13, 20248-K Change of auditor²⁷
Nov 22, 20248-K Other events²⁸
Nov 4, 20248-K Executive or director change²⁹
Oct 24, 20248-K Executive or director change³⁰
Oct 18, 20248-K Debt or obligation accelerated³¹
Aug 6, 20248-K Listing notice or transfer; Regulation FD disclosure³²
Jul 26, 20248-K Shareholder vote³³
Jul 12, 20248-K Executive or director change³⁴
Jun 21, 20248-K Listing notice or transfer³⁵
Jun 20, 20248-K Entered a material agreement; Unregistered sale of shares³⁶
Jun 13, 20248-K Listing notice or transfer³⁷
Oct 23, 2023New chief executive Brian Semkiw becomes CEO⁹
Oct 27, 2021New chief executive Rick Gaenzle becomes CEO¹⁰

Filings

206 filings to the SEC since October 2021: 4 annual reports, 10 quarterly reports, 44 major events, 39 insider forms, 27 large holders, 82 other. The latest 20:

Apr 21, 2025SEC STAFF ACTION EDGAR
Jan 30, 20258-K SPECTAIRE HOLDINGS INC. - FORM 8-K SEC FILING EDGAR
Dec 13, 20248-K CURRENT REPORT EDGAR
Nov 22, 20248-K CURRENT REPORT EDGAR
Nov 14, 2024SC 13G/A SPECTAIRE EDGAR
Nov 4, 20248-K CURRENT REPORT EDGAR
Oct 24, 20248-K EDGAR
Oct 18, 20248-K CURRENT REPORT EDGAR
Aug 20, 202410-Q QUARTERLY REPORT EDGAR
Aug 15, 2024NT 10-Q NOTIFICATION OF LATE FILING EDGAR
Aug 6, 20248-K CURRENT REPORT EDGAR
Jul 26, 20248-K CURRENT REPORT EDGAR
Jul 12, 20248-K CURRENT REPORT EDGAR
Jun 28, 2024DEF 14A PROXY STATEMENT EDGAR
Jun 27, 2024424B3 PROSPECTUS EDGAR
Jun 25, 2024EFFECT EDGAR
Jun 24, 2024CORRESP EDGAR
Jun 21, 2024S-1/A AMENDMENT NO. 1 TO FORM S-1 EDGAR
Jun 21, 20248-K CURRENT REPORT EDGAR
Jun 20, 20248-K CURRENT REPORT EDGAR

The 206 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

5 open-market trades by officers, directors and large owners since October 2021: 3 buys and 2 sales. Grants, option exercises and gifts are left out.

Date	Who	Trade	Shares	Price	Value	Filing
Oct 25, 2023	Semkiw BrianChairman & CEO	Buy	297	$2.23	$662	Form 4
Oct 24, 2023	Mosolf JoergDirector	Buy	10,000	$3.00	$30.0K	Form 4
Oct 24, 2023	Semkiw BrianChairman & CEO	Buy	1,899	$1.94	$3.7K	Form 4
Aug 17, 2023	Owl Creek Asset Management, L.P.10% owner	Sale	160,000	$11.05	$1.8M	Form 4
Mar 9, 2023	AQR Capital Management Holdings, LLC10% owner	Sale	478,645	$10.55	$5.0M	Form 4

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

Polar Asset Management Partners Inc.SC 13G/A, 3 filings Feb 13, 2023 to Nov 14, 2024³⁸
AQR CAPITAL MANAGEMENT LLCSC 13G/A, 2 filings Feb 14, 2023 to Feb 14, 2024³⁹
PERISCOPE CAPITAL INC.SC 13G/A, 2 filings Feb 13, 2023 to Feb 9, 2024⁴⁰
Perception Capital Partners II LLCSC 13D, 2 filings Feb 14, 2022 to Oct 30, 2023⁴¹
Owl Creek Asset Management, L.P.SC 13G/A, 2 filings May 2, 2023 to Sep 8, 2023⁴²
METEORA CAPITAL, LLCSC 13G, 1 filing Feb 16, 2023⁴³
Saba Capital Management, L.P.SC 13G/A, 4 filings Nov 5, 2021 to Feb 14, 2023⁴⁴
Shaolin Capital Management LLCSC 13G, 1 filing Feb 14, 2023⁴⁵
ADAGE CAPITAL PARTNERS GP, L.L.C.SC 13G/A, 2 filings Nov 12, 2021 to Feb 9, 2023⁴⁶
HIGHBRIDGE CAPITAL MANAGEMENT LLCSC 13G/A, 3 filings Nov 12, 2021 to Jan 25, 2023⁴⁷
MILLENNIUM MANAGEMENT LLCSC 13G/A, 2 filings Feb 25, 2022 to Jan 18, 2023⁴⁸
BarclaysSC 13G, 1 filing Feb 11, 2022⁴⁹
INTEGRATED CORE STRATEGIES (US) LLCSC 13G/A, 2 filings Nov 3, 2021 to Jan 20, 2022⁵⁰

SEC filer profile

How Spectaire Holdings Inc. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

Name on EDGARSpectaire Holdings Inc.¹
CIK0001844149
Employer ID (EIN)98-1578608¹
Filer status<br>emerging growth company¹
Fiscal year endsDecember 31¹
Industry code (SIC)3829 Measuring & Controlling Devices, NEC¹
SEC reviewing officeOffice of Industrial Applications and Services, Division of Corporation Finance¹
Business address3109 W 50Th St., #207, Minneapolis, MN 55410¹
Phone(952) 456-5300¹
Shares outstanding15,344,864 as of Mar 27, 2024⁵
Public float$23.3M as of Jun 30, 2023⁵
On EDGAR sinceFeb 16, 2021¹
Filings217 in all: 8-K (43), 3 (22), CORRESP (18), UPLOAD (17), 4 (16), SC 13G (13), SC 13G/A (13), 10-Q (9)¹
All 35 form types
S-1/A (9), 425 (8), EFFECT (4), PRE 14A (4), PRER14A (4), S-1 (4), S-4/A (4), 10-K (3), 424B3 (3), DEF 14A (3), NT 10-Q (3), 25-NSE (2), 10-K/A (1), 10-Q/A (1), 4/A (1), 424B4 (1), 8-A12B (1), 8-K/A (1), CERT (1), DRS (1), NT 10-K (1), PREM14A (1), S-4 (1), S-8 (1), S-8 POS (1), SC 13D (1), SEC STAFF ACTION (1)
Latest filingsAnnual report (10-K) Mar 29, 2024
Quarterly report (10-Q) Aug 20, 2024
Proxy statement (DEF 14A) Jun 28, 2024
Latest 8-K (8-K) Jan 30, 2025

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARSpectaire Holdings Inc. filings on SEC EDGAR
2
SEC EDGARSpectaire Holdings Inc. filings on SEC EDGAR
3
SEC EDGARSpectaire Holdings Inc. annual report, Item 1 (Business)
4
SEC EDGARSpectaire Holdings Inc. 10-K for fiscal 2021
5
SEC EDGARSpectaire Holdings Inc. 10-K for fiscal 2022
6
SEC EDGARSpectaire Holdings Inc. 10-Q for fiscal 2023
7
SEC EDGARSpectaire Holdings Inc. 10-Q for fiscal 2024
8
SEC EDGARSpectaire Holdings Inc. 10-Q for fiscal 2024
9
SEC EDGARBrian Semkiw, Chief executive officer
10
SEC EDGARRick Gaenzle, Chief executive officer
11
SEC EDGARJames J. Sheridan Iii., President
12
SEC EDGARLeonardo Fernandes, Chief financial officer
13
SEC EDGARCorey Campbell, Chief financial officer
14
SEC EDGARBrian Hemond, Chief Technology Officer
15
SEC EDGARChristopher Grossman, Chief Commercial Officer
16
SEC EDGARRui Mendes, Chief Information Officer
17
SEC EDGARGianfranco Baldesarra, Board member
18
SEC EDGARJoerg Mosolf, Board member
19
SEC EDGARTao Tan, Board member
20
SEC EDGARKarrie Willis, Board member
21
SEC EDGARScott Honour, Board member
22
SEC EDGARThomas J. Abood, Board member
23
SEC EDGARMarcy Haymaker, Board member
24
SEC EDGAROmer Keilaf, Board member
25
SEC EDGARRudolph R. Reinfrank, Board member
26
SEC EDGARDebt or obligation accelerated
27
SEC EDGARChange of auditor
28
SEC EDGAROther events
29
SEC EDGARExecutive or director change
30
SEC EDGARExecutive or director change
31
SEC EDGARDebt or obligation accelerated
32
SEC EDGARListing notice or transfer; Regulation FD disclosure
33
SEC EDGARShareholder vote
34
SEC EDGARExecutive or director change
35
SEC EDGARListing notice or transfer
36
SEC EDGAREntered a material agreement; Unregistered sale of shares
37
SEC EDGARListing notice or transfer
38
SEC EDGARPolar Asset Management Partners Inc. SC 13G/A on Spectaire Holdings Inc.
39
SEC EDGARAQR CAPITAL MANAGEMENT LLC SC 13G/A on Spectaire Holdings Inc.
40
SEC EDGARPERISCOPE CAPITAL INC. SC 13G/A on Spectaire Holdings Inc.
41
SEC EDGARPerception Capital Partners II LLC SC 13D on Spectaire Holdings Inc.
42
SEC EDGAROwl Creek Asset Management, L.P. SC 13G/A on Spectaire Holdings Inc.
43
SEC EDGARMETEORA CAPITAL, LLC SC 13G on Spectaire Holdings Inc.
44
SEC EDGARSaba Capital Management, L.P. SC 13G/A on Spectaire Holdings Inc.
45
SEC EDGARShaolin Capital Management LLC SC 13G on Spectaire Holdings Inc.
46
SEC EDGARADAGE CAPITAL PARTNERS GP, L.L.C. SC 13G/A on Spectaire Holdings Inc.
47
SEC EDGARHIGHBRIDGE CAPITAL MANAGEMENT LLC SC 13G/A on Spectaire Holdings Inc.
48
SEC EDGARMILLENNIUM MANAGEMENT LLC SC 13G/A on Spectaire Holdings Inc.
49
SEC EDGARBarclays SC 13G on Spectaire Holdings Inc.
50
SEC EDGARINTEGRATED CORE STRATEGIES (US) LLC SC 13G/A on Spectaire Holdings Inc.