Rewind Rhino Extincton

EIN 83-2978095 • 501(c)3 • Littleton, CO

Profile

Support the creation and maintenance of Northern White Rhinoceros embryos to be implanted in a surrogate fertile Southern White Rhinoceros female in an attempt to produce a genetically pure Northern White Rhinoceros calf and reverse the biological extinction of this species.

6802 S Dover CircleLittleton, CO 80128

nwrextinction

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

0.00x

Higher debt load relative to assets than 64% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2024

0.00x

Higher debt load relative to revenue than 62% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2024

-28%

Higher net margin than 19% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2024

No value available

No filing with officer rows is available for this organization yet.

306%

Faster asset growth than 97% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2022 to 2024

-1.4%

Faster revenue growth than 49% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2022 to 2024

Balance Sheet

Liabilities / Assets64th percentile

Assets

Down

$42,779

Down $54,378 (-56%) from 2023

Liabilities

$213

Up $212 (+21200%) from 2023

Net Assets

Down

$42,566

Down $54,591 (-56%) from 2023

Operations

Liabilities / Revenue62nd percentile Net Margin19th percentile

Revenue

Down

$193,193

Down $493,652 (-72%) from 2023

Expenses

Down

$247,783

Down $341,905 (-58%) from 2023

Net Income

Down

-$54,590

Down $151,747 (-156%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth97th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

Highlighted filing

2024

Assets$42,779

Liabilities$213

Net Assets$42,566

Open 2024 Filing

Operations Trend

Revenue Growth49th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

Highlighted filing

2024

Revenue$193,193

Expenses$247,783

Net Income-$54,590

Open 2024 Filing

Filings

Most recent year

2024 • Form 990PFDetailed filing. Detailed filing data is available for this year.

Open filing

Assets: $42,779
Liabilities: $213
Net assets: $42,566
Revenue: $193,193
Expenses: $247,783
Net income: -$54,590

	Balance Sheet			Operations
Year	Assets	Liabilities	Net Assets	Revenue	Expenses	Net Income
2024Detailed filing. Detailed filing data is available for this year.	$0.43	$0.00	$0.43	$1.93	$2.48	$0.55
2023Detailed filing. Detailed filing data is available for this year.	$0.97	$0.00	$0.97	$6.87	$5.90	$0.97
2022Detailed filing. Detailed filing data is available for this year.	$0.03	$0.00	$0.03	$1.99	$2.07	$0.08
2021Detailed filing. Detailed filing data is available for this year.	$0.11	$0.00	$0.11	$2.10	$2.39	$0.28
2020Detailed filing. Detailed filing data is available for this year.	$0.39	$0.00	$0.39	$1.55	$1.22	$0.33
2018Summary only. Only limited summary data is available for this year.	$0.00	$0.00		$0.00	$0.00	$0.00

Latest Filing Detail

Jump To

Filing Snapshot

Filing Period: Jan 1, 2024 to Dec 31, 2024
Signed: Oct 24, 2025
Return Version: 2024v5.2

Mission and Program Overview

Mission

Compensation and Service Providers

Top Officer PayScore unavailable

Employees

Name	Title	Full / Part Time	Base	Other	Total
SALLY JUDITH MCLELLAN	CEO	-	$0	-	-
JAN STEJSKAL	COO	-	$0	-	-
SEVEN SEET	Secretary	-	$0	-	-
RICHARD GRAY MCLELLAN	Director	-	$0	-	-
HOLLY SCHEU HARMS	Treasurer	-	$0	-	-

Filing and Contact Details

Filer

Filer Name: Rewind Rhino Extincton
EIN: 83-2978095
Phone: 7208396431
Address: 6802 S DOVER CIRCLE, LITTLETON, CO 80128

Signing Officer

Name: Sally Judith Mclellan
Title: CEO
Phone: 7208396431
Signed: 2025-10-24
Discuss with paid preparer: Yes

Preparer

Firm: Wrp Tax Services Inc
Address: 1855 HAMILTON AVENUE SUITE 200, SAN JOSE, CA 95125
Preparer: Quynh L Ho CPA
Phone: 4083717761

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IRS990PF/SumOfProgramRelatedInvstGrp/Description1Txt	0	FUND THE CREATION OF AND MAINTENANCE OF GENETICALLY PURE, CRYOPRESERVED, NORTHERN WHITE RINOCEROS EMBRYOS AND GENETICALLY PURE SOUTHERN WHITE RHINOCEROS EMBRYOS. AVANTEA SRL.
IRS990PF/SumOfProgramRelatedInvstGrp/Expenses1Amt	0	0
IRS990PF/SumOfProgramRelatedInvstGrp/TotalAmt	0	0
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	0	50000
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	1	155173
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	0	SCIENTIFIC RESEARCH
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	1	SCIENTIFIC RESEARCH
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	0	BIORESCUE
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	1	AVANTEA SRL
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientForeignAddress/AddressLine1Txt	0	ALFRED-KOWALKE STR 17
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientForeignAddress/AddressLine1Txt	1	VIA PORCELLASCO 7F
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientForeignAddress/CityNm	0	BERLIN
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientForeignAddress/CityNm	1	CREMONA
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientForeignAddress/CountryCd	0	GM
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientForeignAddress/CountryCd	1	IT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientForeignAddress/ForeignPostalCd	0	10315
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientForeignAddress/ForeignPostalCd	1	26108
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientForeignAddress/ProvinceOrStateNm	0	GM
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientForeignAddress/ProvinceOrStateNm	1	IT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	0	NC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	1	NC
IRS990PF/SupplementaryInformationGrp/OnlyContriToPreselectedInd	0	X
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriApprvFutAmt	0	0
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriPdDurYrAmt	0	205173
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/LoansOrLoanGuaranteesInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PerformanceOfServicesEtcInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PurchaseOfAssetsNonchrtblEOInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/ReimbursementArrangementsInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RelationshipsNonchrtblEOInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RentalOfFacilitiesOthAssetsInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SalesOrExchangesOfAssetsInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SharingOfFacilitiesEtcInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOfCashToNonchrtblEOInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOtherAssetNonchrtblEOInd	0	0
IRS990PF/UndistributedIncomeGrp/AppliedToCurrentYearAmt	0	2177
IRS990PF/UndistributedIncomeGrp/AppliedToPriorYearsAmt	0	0
IRS990PF/UndistributedIncomeGrp/AppliedToYear1Amt	0	5073
IRS990PF/UndistributedIncomeGrp/CorpusDistri170b1EOr4942g3Amt	0	0
IRS990PF/UndistributedIncomeGrp/DistributableAsAdjustedAmt	0	2177
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovAppCYAmt	0	0
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr1Amt	0	584615
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovAppCYCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovFromYr5Amt	0	0
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovToNextYrAmt	0	782538
IRS990PF/UndistributedIncomeGrp/ExcessFromCurrentYearAmt	0	197923
IRS990PF/UndistributedIncomeGrp/ExcessFromYear1Amt	0	584615
IRS990PF/UndistributedIncomeGrp/PriorYearDeficiencyOrTaxAmt	0	0
IRS990PF/UndistributedIncomeGrp/PriorYearUndistributedIncmAmt	0	0
IRS990PF/UndistributedIncomeGrp/QualifyingDistributionsAmt	0	205173
IRS990PF/UndistributedIncomeGrp/RemainingDistriFromCorpusAmt	0	197923
IRS990PF/UndistributedIncomeGrp/Taxable1Amt	0	0
IRS990PF/UndistributedIncomeGrp/Taxable2Amt	0	0
IRS990PF/UndistributedIncomeGrp/TotalCorpusAmt	0	782538
IRS990PF/UndistributedIncomeGrp/TotalExcessDistributionCyovAmt	0	584615
IRS990PF/UndistributedIncomeGrp/TotalForPriorYearsAmt	0	0
IRS990PF/UndistributedIncomeGrp/TreatedAsDistriFromCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/UndistributedIncomeCYAmt	0	0
IRS990PF/UndistributedIncomeGrp/UndistributedIncomePYAmt	0	5073
IRS990ScheduleB/ContributorInformationGrp/ContributorNum	0	1
IRS990ScheduleB/ContributorInformationGrp/ContributorPersonNm	0	RICHARD GRAY MCLELLAN
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1Txt	0	2379 PANORAMA TERRACE
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/CityNm	0	LOS ANGELES
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/StateAbbreviationCd	0	CA
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCd	0	90039
IRS990ScheduleB/ContributorInformationGrp/PersonContributionInd	0	X
IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt	0	192000
IRS990ScheduleB/GeneralRuleInd	0	X
IRS990ScheduleB/Organization501c3ExemptPFInd	0	X
OtherDecreasesSchedule/OtherDecreasesDetail/Amt	0	1
OtherDecreasesSchedule/OtherDecreasesDetail/Desc	0	ROUNDING
OtherExpensesSchedule/OtherExpensesScheduleGrp/AdjustedNetIncomeAmt	0	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/AdjustedNetIncomeAmt	1	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/AdjustedNetIncomeAmt	2	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/AdjustedNetIncomeAmt	3	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/AdjustedNetIncomeAmt	4	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/AdjustedNetIncomeAmt	5	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/AdjustedNetIncomeAmt	6	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	0	SOCIAL MEDIA
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	1	MARKETING
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	2	WEBSITE
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	3	BANK FEE
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	4	DISCREPANY RECONCILIATION
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	5	FUNDRAISING
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	6	BUSINESS REGISTRATION FEE
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	0	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	1	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	2	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	3	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	4	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	5	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	6	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	0	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	1	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	2	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	3	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	4	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	5	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	6	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	0	10923
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	1	959
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	2	3665
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	3	269
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	4	-5
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	5	8919
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	6	5
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/BOYBookValueAmt	0	0
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/Desc	0	CREDIT CARDS
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/EOYBookValueAmt	0	213
OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/AdjustedNetIncomeAmt	0	0
OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/Amt	0	12500
OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/CategoryTxt	0	GRANT WRITING
OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/DisbursementsCharitablePrpsAmt	0	0
OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/NetInvestmentIncomeAmt	0	0
SubstantialContributorsSch/SubstantialContributorDetail/PersonNm	0	RICHARD MCLELLAN
SubstantialContributorsSch/SubstantialContributorDetail/USAddress/AddressLine1Txt	0	6802 S DOVER CIRCLE
SubstantialContributorsSch/SubstantialContributorDetail/USAddress/CityNm	0	LITTLETON
SubstantialContributorsSch/SubstantialContributorDetail/USAddress/StateAbbreviationCd	0	CO
SubstantialContributorsSch/SubstantialContributorDetail/USAddress/ZIPCd	0	80128
ReturnHeader/BuildTS	0	2025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd	0	1
ReturnHeader/BusinessOfficerGrp/PersonNm	0	SALLY JUDITH MCLELLAN
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt	0	CEO
ReturnHeader/BusinessOfficerGrp/PhoneNum	0	7208396431
ReturnHeader/BusinessOfficerGrp/SignatureDt	0	2025-10-24
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt	0	REWIND RHINO EXTINCTON
ReturnHeader/Filer/BusinessNameControlTxt	0	REWI
ReturnHeader/Filer/EIN	0	832978095
ReturnHeader/Filer/PhoneNum	0	7208396431
ReturnHeader/Filer/USAddress/AddressLine1Txt	0	6802 S DOVER CIRCLE
ReturnHeader/Filer/USAddress/CityNm	0	LITTLETON
ReturnHeader/Filer/USAddress/StateAbbreviationCd	0	CO
ReturnHeader/Filer/USAddress/ZIPCd	0	80128
ReturnHeader/IRSResponsiblePrtyInfoCurrInd	0	1
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN	0	831219903
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt	0	WRP TAX SERVICES INC
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt	0	1855 HAMILTON AVENUE SUITE 200
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm	0	SAN JOSE
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd	0	CA
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd	0	95125
ReturnHeader/PreparerPersonGrp/PhoneNum	0	4083717761
ReturnHeader/PreparerPersonGrp/PreparerPersonNm	0	QUYNH L HO CPA
ReturnHeader/ReturnTs	0	2025-10-24T14:31:17-05:00
ReturnHeader/ReturnTypeCd	0	990PF
ReturnHeader/TaxPeriodBeginDt	0	2024-01-01
ReturnHeader/TaxPeriodEndDt	0	2024-12-31
ReturnHeader/TaxYr	0	2024

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