Webhook Events

PreIPOCompanySPV

Throughout the lifecycle of a PreIPOCompanySPV this webhook event is published at every stage change. See the SPV State Transitions for a list of all the SPV stage changes.

{
  "eventType": "PreIPOCompanySPV",
	"data" : {
    "id": "50135e1a-d36e-46d0-a134-4480bfa1a722",
    "name": "SpaceX LLC",
    "monarkStage": "PRIMARY_FUNDRAISE",
    "preIPOCompanyId": "b2ace6bd-9ee4-4386-a557-c67f92e1bae7"
  }
}

In addition to changes to the SPV's stage, webhooks will also be sent whenever underlying information about the SPV changes during the PRIMARY_FUNDRAISE stage. Any change to the following fields will trigger a webhook:

numberOfSeatsRemaining
remainingDollarAllocation
remainingShareAllocation

When a webhook is triggered as a result of a state change for the above values, the payload will also include the SPV ID, Company ID, and the "new" value of whatever fields changed.

Transaction

When an Investor's Transaction changes status this webhook event is published. See the Transaction State Transitions for a list of all the Transaction stage changes.

Monark also provides "reminder" webhooks for transactions left in Pending. These webhooks are sent 24 hours after the transaction reaches the Pending status, and can be used as a trigger for "empty cart" email/push notification outreach to investors, prompting them to complete their transaction. The event type for the reminder webhook is PendingSubscriptionReminder and can be used to filter for reminders.

{
  "eventType": "SubscriptionStatus",
	"data" : {
    "subscriptionId": "11be86e2-0d1c-47c2-8591-e8a34b805e87",
    "spvId": "50135e1a-d36e-46d0-a134-4480bfa1a722",
    "investorId": "3f095838-e9e1-419c-adda-eabba652afb6",
    "amountOfShares": 3400,
    "amountOfDollars": 642600,
    "status": "COMPLETE",
    "orderReferenceId" : "OrderRef123"
  }
}

Prospective Offering

A webhook event is sent when prospective offerings either go live or are closed. There are two event types associated with Prospective Offerings:

ProspectiveOfferingAccessGained
ProspectiveOfferingAccessLost

{
  "eventType": "ProspectiveOfferingAccessGained",
  "data": {
    "id": "dc90aba8-2801-4ab6-821f-4a3e8b9e6f4f",
    "targetId": "5d724dc3-c39d-484c-b949-6b061b60e129",
    "targetName": "Anduril",
    "targetAssetType": "PreIPOCompany",
    "logoUrl": "https://images.prismic.io/sacra/20d9de0b-e3f8-47f5-8bb6-7f92638e50fd_download.png?auto=format,compress",
    "availableVolume": 100000,
    "minimumInvestment": "10000",
    "structure": "ok",
		"closingDate": "2026-02-26T19:14:41.3495476Z",
    "estimatedValuation": {
      "single": null,
      "high": 5000,
      "low": 4000
    },
    "estimatedValuationText": "$5k to $4k",
    "estimatedPricePerShare": {
      "single": null,
      "high": 50,
      "low": 40
    },
    "estimatedPricePerShareText": "$50 to $40 per share",
    "researchReport": "https://www.anduril.com",
    "createdAt": "2026-02-26T19:14:41.3495476Z"
  }
}

Indication of Interest

The IndicationOfInterestClosed webhook is sent when outstanding pending IOIs are automatically closed due to a prospective offering becoming inaccessible. This could happen in either of the following scenarios:

The associated ProspectiveOffering has closed and is now a live SPV
The associated ProspectiveOffering has closed and the indication is no longer active

In either case, the indication of interest will now have a isActive status of "FALSE".

  {
    "eventType": "IndicationOfInterestClosed",
    "data": {
      "id": "guid",
      "investorId": "guid",
      "advisorId": "guid | null",
      "targetId": "guid",
      "targetAssetType": "ProspectiveOffering",
      "numberOfClients": 1,
      "notionalAmount": 100000.0,
      "currency": "USD",
      "createdAt": "2026-01-15T10:00:00Z",
      "updatedAt": "2026-01-20T14:30:00Z",
      "partnerName": "Acme Capital",
      "investorFirstName": "John",
      "investorLastName": "Doe",
      "targetName": "SpaceX",
      "isActive": false
    }
  }