XML 107 R61.htm IDEA: XBRL DOCUMENT v3.25.1

Significant events for the years ended December 31, 2022, 2023 and 2024 and subsequent events - For the year ended 2023 (Details) € / shares in Units, $ / shares in Units, € in Thousands, $ in Millions													1 Months Ended	6 Months Ended	12 Months Ended			18 Months Ended	121 Months Ended
	Nov. 02, 2023 EUR (€)	Oct. 24, 2023 EUR (€) € / shares shares	Oct. 24, 2023 USD ($) shares	Aug. 24, 2023 EUR (€)	Aug. 22, 2023 EUR (€)	Aug. 21, 2023 EUR (€)	Aug. 20, 2023 EUR (€) transaction € / shares	May 24, 2023 € / shares shares	Feb. 22, 2023 EUR (€) € / shares shares	Sep. 07, 2022 EUR (€) € / shares shares	Sep. 02, 2022 EUR (€) transaction € / shares shares	Jul. 30, 2021 EUR (€) € / shares shares	Oct. 31, 2020 shares	Dec. 31, 2023 shares plan € / shares	Dec. 31, 2024 EUR (€) shares € / shares	Dec. 31, 2023 EUR (€) € / shares shares	Dec. 31, 2022 EUR (€) € / shares shares	Dec. 31, 2024 shares € / shares	Dec. 31, 2023 EUR (€) € / shares	Nov. 19, 2024 € / shares	Oct. 24, 2023 $ / shares
Disclosure of detailed information about borrowings [line items]
Capital increase from issuance of ordinary shares									€ 130,000	€ 46,231						€ 353,377	€ 46,231
Capital increase from issuance of ordinary shares (in shares) | shares		20,325,500	20,325,500						20,000,000	5,530,000						40,325,500	5,530,000
Par value per share (in euro per share) | € / shares		€ 0.01						€ 0.01	€ 0.01	€ 0.01				€ 0.01	€ 0.01	€ 0.01	€ 0.01	€ 0.01	€ 0.01	€ 0.01
Equity issuance, subscripion price per share (in euro per share) | € / shares									€ 6.50	€ 8.36
Share issue related cost																€ 28,111	€ 3,280
Exercises of share warrants (in shares) | shares													464,309		4,000		19,134
Proceeds from borrowings																			€ 175,000
Repayments of convertible loan notes				€ 33,000											€ 8,750	27,188	€ 0
Capital increases		€ 223,300	$ 235.8												€ 0	353,377	46,231		€ 557,200
Capital increases		202,000	212.2
Payments for share issue costs		€ 21,300	$ 23.6
Free Shares (AGA)
Disclosure of detailed information about borrowings [line items]
Number of share-based compensation plans issued | plan														5
Number of instruments issued (in shares) | shares														2,601,296	1,946,125			4,547,421
ADS
Disclosure of detailed information about borrowings [line items]
Capital increase from issuance of ordinary shares (in shares) | shares		18,699,460	18,699,460
Number of shares received per ADS (in shares) | shares		1	1
Issue of equity, offering price per share (in dollar/euro per share) | $ / shares																					$ 11.60
Ordinary shares
Disclosure of detailed information about borrowings [line items]
Capital increase from issuance of ordinary shares (in shares) | shares		1,626,040	1,626,040
Issue of equity, offering price per share (in dollar/euro per share) | € / shares		€ 10.9864
Kreos 1, convertible bond loans, tranche A
Disclosure of detailed information about borrowings [line items]
Number of other share warrants repurchased (in shares) | shares								43,070
Exercises of share warrants (in shares) | shares								67,887
Kreos 1, convertible bond loans, tranche B
Disclosure of detailed information about borrowings [line items]
Number of other share warrants repurchased (in shares) | shares								43,070
Exercises of share warrants (in shares) | shares								31,696
Repayments of convertible loan notes				8,000		€ 7,661
Kreos & Claret financing
Disclosure of detailed information about borrowings [line items]
Borrowings, maximum borrowing capacity							€ 75,000
Aggregate exercise price				4,000
Kreos & Claret financing | Kreos C BSA
Disclosure of detailed information about borrowings [line items]
Issuance of other share warrants	€ 4,000
Kreos & Claret financing | Maximum
Disclosure of detailed information about borrowings [line items]
Aggregate exercise price							€ 8,000
Heights convertible notes
Disclosure of detailed information about borrowings [line items]
Equity issuance, subscripion price per share (in euro per share) | € / shares							€ 14.4303
Borrowings, maximum borrowing capacity							€ 75,000
Proceeds from borrowings				35,000
Heights convertible notes | Maximum
Disclosure of detailed information about borrowings [line items]
Equity issuance, subscripion price per share (in euro per share) | € / shares							€ 14.4303
Kreos / Claret convertible notes (OCABSA)
Disclosure of detailed information about borrowings [line items]
Proceeds from borrowings					€ 25,000
Oceane
Disclosure of detailed information about borrowings [line items]
Capital increase from issuance of ordinary shares (in shares) | shares												1,964,031
Equity issuance, subscripion price per share (in euro per share) | € / shares												€ 30.55
Repayments of convertible loan notes				25,102												25,000
Capital increases												€ 60,000
Kreos & Claret financing and Heights convertible notes
Disclosure of detailed information about borrowings [line items]
Proceeds from borrowings, net of refinancing of existing indebteness				€ 27,000
Share premium
Disclosure of detailed information about borrowings [line items]
Capital increase from issuance of ordinary shares																€ 352,974	€ 46,176
€130.0 million cross-over financing, february 2023
Disclosure of detailed information about borrowings [line items]
Financial agreement, amount									€ 130,000
Capital increase from issuance of ordinary shares									€ 130,000
Capital increase from issuance of ordinary shares (in shares) | shares									20,000,000
Par value per share (in euro per share) | € / shares									€ 0.01
Equity issuance, subscripion price per share (in euro per share) | € / shares									€ 6.50
€130.0 million cross-over financing, february 2023 | Share premium
Disclosure of detailed information about borrowings [line items]
Share issue related cost									€ 6,700
€49.2 million cross-over financing, september 2022
Disclosure of detailed information about borrowings [line items]
Financial agreement, amount											€ 49,200
Capital increase from issuance of ordinary shares (in shares) | shares											5,530,000
Par value per share (in euro per share) | € / shares											€ 0.01
Equity issuance, percentage of current share capital									89.60%		33.00%
Equity issuance, subscripion price per share (in euro per share) | € / shares											€ 8.36
Financial agreement, number of transactions | transaction											2
Capital increases											€ 46,200
€49.2 million cross-over financing, september 2022 | Share premium
Disclosure of detailed information about borrowings [line items]
Share issue related cost											€ 3,300
€150.0 million financing, august 2023
Disclosure of detailed information about borrowings [line items]
Financial agreement, amount							€ 150,000
Financial agreement, number of transactions | transaction							2

X

- Definition

Aggregate Exercise Price, Other Equity Instruments Granted

+ References

No definition available.

+ Details

Name:	abvx_AggregateExercisePriceOtherEquityInstrumentsGranted
Namespace Prefix:	abvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Borrowings, Maximum Borrowing Capacity

+ References

No definition available.

+ Details

Name:	abvx_BorrowingsMaximumBorrowingCapacity
Namespace Prefix:	abvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Equity Issuance, Percentage Of Current Share Capital

+ References

No definition available.

+ Details

Name:	abvx_EquityIssuancePercentageOfCurrentShareCapital
Namespace Prefix:	abvx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Equity Issuance, Subscription Price Per Share

+ References

No definition available.

+ Details

Name:	abvx_EquityIssuanceSubscriptionPricePerShare
Namespace Prefix:	abvx_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Financial Agreement, Amount

+ References

No definition available.

+ Details

Name:	abvx_FinancialAgreementAmount
Namespace Prefix:	abvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Financial Agreement, Number Of Transactions

+ References

No definition available.

+ Details

Name:	abvx_FinancialAgreementNumberOfTransactions
Namespace Prefix:	abvx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Increase (Decrease) In Number Of Ordinary Shares Issued Through Capital Increase

+ References

No definition available.

+ Details

Name:	abvx_IncreaseDecreaseInNumberOfOrdinarySharesIssuedThroughCapitalIncrease
Namespace Prefix:	abvx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Increase (Decrease) In Number Of Shares Issued Through Exercise Of Share Warrants

+ References

No definition available.

+ Details

Name:	abvx_IncreaseDecreaseInNumberOfSharesIssuedThroughExerciseOfShareWarrants
Namespace Prefix:	abvx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Issuance Of Other Share Warrants

+ References

No definition available.

+ Details

Name:	abvx_IssuanceOfOtherShareWarrants
Namespace Prefix:	abvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Issue Of Equity, Offering Price Per Share

+ References

No definition available.

+ Details

Name:	abvx_IssueOfEquityOfferingPricePerShare
Namespace Prefix:	abvx_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number Of Other Share Warrants Repurchased

+ References

No definition available.

+ Details

Name:	abvx_NumberOfOtherShareWarrantsRepurchased
Namespace Prefix:	abvx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number Of Share-Based Compensation Plans Issued

+ References

No definition available.

+ Details

Name:	abvx_NumberOfShareBasedCompensationPlansIssued
Namespace Prefix:	abvx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number Of Shares Received Per ADS

+ References

No definition available.

+ Details

Name:	abvx_NumberOfSharesReceivedPerADS
Namespace Prefix:	abvx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Proceeds From Borrowings, Net Of Refinancing Of Existing Indebteness

+ References

No definition available.

+ Details

Name:	abvx_ProceedsFromBorrowingsNetOfRefinancingOfExistingIndebteness
Namespace Prefix:	abvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Proceeds From Issuing Shares Other Than Through Exercise Of Warrants

+ References

No definition available.

+ Details

Name:	abvx_ProceedsFromIssuingSharesOtherThanThroughExerciseOfWarrants
Namespace Prefix:	abvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Repayments Of Convertible Loans Notes

+ References

No definition available.

+ Details

Name:	abvx_RepaymentsOfConvertibleLoansNotes
Namespace Prefix:	abvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The increase in equity through the issue of equity instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d_iii&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_IssueOfEquity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The nominal value per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 79
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_79_a_iii&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ParValuePerShare
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The cash outflow for share issue costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 17
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_PaymentsForShareIssueCosts
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The cash inflow from borrowings obtained. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 17
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17_c&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The cash inflow from issuing shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 17
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17_a&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ProceedsFromIssuingShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of cost related to the issuance of shares.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ShareIssueRelatedCost
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=abvx_FreeSharesAGAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=abvx_AmericanDepositorySharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=abvx_Kreos1ConvertibleBondLoansTrancheAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=abvx_Kreos1ConvertibleBondLoansTrancheBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=abvx_KreosClaretFinancingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	abvx_WarrantsAxis=abvx_KreosCBSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=abvx_HeightsConvertibleNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=abvx_KreosClaretFinancingTrancheAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=abvx_OCEANEMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=abvx_KreosClaretFinancingAndHeightsConvertibleNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_SharePremiumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	abvx_FinancialAgreementAxis=abvx_A130.0MillionCrossOverFinancingFebruary2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	abvx_FinancialAgreementAxis=abvx_A49.2MillionCrossOverFinancingSeptember2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	abvx_FinancialAgreementAxis=abvx_A150.0MillionFinancingAugust2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: