Oncoinvent ASA - Mandatory notification of trade - Return of lent shares following Private Placement

By Oslo Stock Exchange

Oslo, 30 September 2026: Reference is made to the stock exchange announcement published by Oncoinvent ASA (the "Company") on 22 September 2026 regarding completion of a private placement and retail offering of in total 1,650,000 new shares at a subscription price of NOK 90 per share (the "Private Placement"), and the mandatory notification of trade and shareholding disclosure published on 23 September 2026 regarding the allocation of new shares to, and temporary share lending by, Hadean Capital I AS, HVentures Capital I AB and Hadean Growth Fund I AS.

In connection with the Private Placement, Hadean Capital I AS, HVentures Capital I AB and Hadean Growth Fund I AS temporarily lent an aggregate of 554,327 existing and unencumbered shares in the Company to ABG Sundal Collier ASA and DNB Carnegie, a part of DNB Bank ASA, acting as managers in the Private Placement (the "Managers"), solely to facilitate delivery-versus-payment ("DVP") settlement of shares allocated to investors in the Private Placement. Following registration of the share capital increase pertaining to the Private Placement with the Norwegian Register of Business Enterprises, the Managers have now re -delivered the temporarily lent shares to the aforementioned share lenders.

Hadean Capital I AS

The Managers have re-delivered 312,280 shares in the Company to Hadean Capital I AS. Following re-delivery of the temporarily lent shares and delivery of the 108,469 new shares allocated to Hadean Capital I AS in the Private Placement, Hadean Capital I AS holds 420,749 shares and votes in the Company, equal to 6.87% of the total number of shares and votes in the Company, thereby crossing above the 5% reporting threshold pursuant to the Norwegian Securities Trading Act (the "NSTA"), as also described in the announcement made on 23 September 2026.

HVentures Capital I AB

The Managers have re-delivered 141,642 shares in the Company to HVentures Capital I AB. Following re-delivery of the temporarily lent shares and delivery of the 49,199 new shares allocated to HVentures Capital I AB in the Private Placement, HVentures Capital I AB holds 190,841 shares and votes in the Company, equal to 3.11% of the total number of shares and votes in the Company, as also described in the announcement made on 23 September 2026.

Hadean Growth Fund I AS

The Managers have re-delivered 100,405 shares in the Company to Hadean Growth Fund I AS. Following re-delivery of the temporarily lent shares and delivery of the 34,875 new shares allocated to Hadean Growth Fund I AS in the Private Placement, Hadean Growth Fund I AS holds 135,280 shares and votes in the Company, equal to 2.21% of the total number of shares and votes in the Company, as also described in the announcement made on 23 September 2026.

Following re-delivery of all temporarily lent shares and the shares allocated in the Private Placement, Hadean Capital I AS, HVentures Capital I AB and Hadean Growth Fund I AS hold an aggregate of 746,870 shares and votes in the Company, equal to 12.19% of the total number of shares and votes in the Company, thereby crossing above the 5% and 10% reporting thresholds pursuant to the NSTA on a consolidated basis, as also described in the announcement made on 23 September 2026.

Hadean Capital I AS, HVentures Capital I AB and Hadean Growth Fund I AS are persons closely associated with Ingrid Teigland Akay, member of the Board of Directors of the Company and Managing Partner of Hadean Ventures.

See the attached PDMR forms for further information.

PDMR attachment.pdf (https://mb.cision.com/Public/15728/4403015/b3503a82f6af8eef.pdf)

This information is subject to the disclosure requirements in article 19 of Regulation (EU) No 596/2014 (the EU Market Abuse Regulation) and section 4-2 of the NSTA.

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