Segmara

Track US IPOs from filing to lock-up with Segmara's free IPO data. See this week's expected pricings and new filings, recent IPOs and how they have traded since, estimated lock-up expiry dates, this month's S-1 filings, and an IPO calendar of companies preparing to go public. No account or API key required.

Actions

Action	What it does
Get the IPO calendar	Get Segmara's IPO calendar: well-known companies on the road to going public worldwide, from reported preparations to confidential and public filings to priced deals, each with a one-line update.
List IPO lock-up expirations	List the estimated dates when insiders of recently listed companies may start selling their shares, soonest first.
List new IPO filings	List the companies that filed to go public in the US this month (their S-1 registration statements), newest first, with the proposed deal size and a link to the filing.
List recent IPOs	List the companies that went public in the US in roughly the last six months, with the IPO price, the latest share price (delayed) and how far it has moved since.
List this week's IPOs	Get this week's US IPO activity in one list: deals expected to price this week with their price range and size, deals that priced in the last 7 days with their final price, and new IPO filings.
Look up a company's IPO	Find everything Segmara has on one company in a single step: its stage on the IPO calendar, this week's deal, its IPO price and performance since, its lock-up expiry and its S-1 filing.

Get the IPO calendar

Get Segmara's IPO calendar: well-known companies on the road to going public worldwide, from reported preparations to confidential and public filings to priced deals, each with a one-line update. Filter by stage or company. No API key required.

Inputs

Companysearchtext: Only companies whose name contains this text. Not case sensitive. Leave it empty for all of them.
Stagesstageslist: Which stages to include. Leave empty for all of them.One or more of: priced_or_listed (Priced or listed), public_filing (Filed publicly), confidential_filing (Filed confidentially), reported_preparation (Reported to be preparing), no_filing (No filing yet), acquired_or_merging (Acquired or merging).
Order bysorttext: How to order the list. Latest update first by default.One of: latest (Latest update first), company (Company name (A to Z)). Default: latest.
Maximum resultslimitnumber: The most companies to return, from 1 to 200. 50 by default.From 1 to 200. Default: 50.

Outputs

attributiontext: A ready-made credit line, for example 'Data: Segmara IPO calendar, segmara.com/ipo-calendar'. Segmara asks for it wherever the data is reused.
countnumber: How many rows the step returned.
itemslist: The companies that matched, in the order chosen.
source_urltext: The Segmara page this data comes from. Link to it when you share it.
stage_countsobject: How many of the matches are at each stage.
total_matchesnumber: How many rows matched before 'Maximum results' cut the list.
updated_attext: When Segmara last refreshed this data, in UTC, for example '2026-10-15T11:43:29Z'.

Example output

{
  "attribution": "Data: Segmara IPO calendar, segmara.com/ipo-calendar",
  "count": 1,
  "items": [
    {
      "company": "TRex Bio",
      "company_url": "https://segmara.com/blog/when-will-trex-bio-ipo",
      "exchange": "Nasdaq (TRXB)",
      "latest_update_date": "2026-10-08",
      "stage": "priced_or_listed",
      "stage_label": "Priced or listed",
      "summary": "Priced its IPO of 8,333,334 shares at $14.00 on October 8, 2026, the low end of its $14 to $16 range, after the SEC declared its S-1 effective that day; the company said trading on Nasdaq as TRXB was expected to begin October 9, 2026."
    }
  ],
  "source_url": "https://segmara.com/ipo-calendar",
  "stage_counts": {
    "acquired_or_merging": 0,
    "confidential_filing": 0,
    "no_filing": 0,
    "priced_or_listed": 1,
    "public_filing": 0,
    "reported_preparation": 0
  },
  "total_matches": 1,
  "updated_at": "2026-10-09T11:52:09Z"
}

List IPO lock-up expirations

List the estimated dates when insiders of recently listed companies may start selling their shares, soonest first. Dates are estimates, 180 days after pricing, with a link to the prospectus to confirm the actual terms. No API key required.

Inputs

Company or tickersearchtext: Only companies whose name contains this text, or whose ticker is exactly this. Not case sensitive, and endings like 'Inc.' are ignored. Leave it empty for all of them.
Upcoming onlyupcoming_onlytrue/false: Only lock-ups ending today or later. On by default; turn it off to include ones that have just passed.Default: true.
Ending on or afterends_fromdate: Only lock-ups estimated to end on or after this date.
Ending on or beforeends_todate: Only lock-ups estimated to end on or before this date.
Maximum resultslimitnumber: The most lock-ups to return, from 1 to 200. 50 by default.From 1 to 200. Default: 50.

Outputs

attributiontext: A ready-made credit line, for example 'Data: Segmara IPO calendar, segmara.com/ipo-calendar'. Segmara asks for it wherever the data is reused.
countnumber: How many rows the step returned.
itemslist: The lock-ups that matched, soonest first.
next_lockup_endtext: The earliest end date in the list (YYYY-MM-DD). Null when empty.
source_urltext: The Segmara page this data comes from. Link to it when you share it.
total_matchesnumber: How many rows matched before 'Maximum results' cut the list.
updated_attext: When Segmara last refreshed this data, in UTC, for example '2026-10-15T11:43:29Z'.

Example output

{
  "attribution": "Data: Segmara IPO lockups, segmara.com/ipo-lockup-expirations",
  "count": 1,
  "items": [
    {
      "company": "LIBERTY DEFENSE HOLDINGS, LTD.",
      "date_basis": "estimated, standard 180-day term; check the prospectus, some lock-ups have early releases or different terms",
      "days_until_lockup_end": 4,
      "estimated_lockup_end": "2026-10-19",
      "ipo_pricing_date": "2026-04-22",
      "sec_prospectus_url": "https://www.sec.gov/cgi-bin/browse-edgar?company=LIBERTY+DEFENSE+HOLDINGS%2C+LTD.&type=424B&dateb=&owner=include&count=40",
      "ticker": "DETX"
    }
  ],
  "next_lockup_end": "2026-10-19",
  "source_url": "https://segmara.com/ipo-lockup-expirations",
  "total_matches": 1,
  "updated_at": "2026-10-14T22:15:26Z"
}

List new IPO filings

List the companies that filed to go public in the US this month (their S-1 registration statements), newest first, with the proposed deal size and a link to the filing. No API key required.

Inputs

Company or tickersearchtext: Only companies whose name contains this text, or whose ticker is exactly this. Not case sensitive, and endings like 'Inc.' are ignored. Leave it empty for all of them.
Company typelisting_typetext: Operating companies, blank-check companies (SPACs, which list to buy another business later), or both. Any by default.One of: any, operating_company (Operating companies only), spac (Blank-check companies (SPACs) only). Default: any.
Filed on or afterfiled_fromdate: Only filings made on or after this date.
Filed on or beforefiled_todate: Only filings made on or before this date.

Outputs

attributiontext: A ready-made credit line, for example 'Data: Segmara IPO calendar, segmara.com/ipo-calendar'. Segmara asks for it wherever the data is reused.
countnumber: How many rows the step returned.
itemslist: The filings that matched, newest first.
source_urltext: The Segmara page this data comes from. Link to it when you share it.
updated_attext: When Segmara last refreshed this data, in UTC, for example '2026-10-15T11:43:29Z'.

Example output

{
  "attribution": "Data: Segmara S-1 filings, segmara.com/s-1-filings-this-week",
  "count": 1,
  "items": [
    {
      "company": "Apex Treasury Corp II",
      "company_url": null,
      "filed_date": "2026-10-13",
      "listing_type": "Operating company",
      "period": "New IPO filings in the last 7 days",
      "proposed_deal_size_usd": 287500000,
      "sec_filing_url": "https://www.sec.gov/cgi-bin/browse-edgar?company=Apex+Treasury+Corp+II&type=S-1&dateb=&owner=include&count=40",
      "ticker": "APTTU"
    }
  ],
  "source_url": "https://segmara.com/s-1-filings-this-week",
  "updated_at": "2026-10-15T12:24:44Z"
}

List recent IPOs

List the companies that went public in the US in roughly the last six months, with the IPO price, the latest share price (delayed) and how far it has moved since. Filter by company, exchange, type or listing date, and sort by date, deal size or performance. No API key required.

Inputs

Company or tickersearchtext: Only companies whose name contains this text, or whose ticker is exactly this. Not case sensitive, and endings like 'Inc.' are ignored. Leave it empty for all of them.
Company typelisting_typetext: Operating companies, blank-check companies (SPACs, which list to buy another business later), or both. Any by default.One of: any, operating_company (Operating companies only), spac (Blank-check companies (SPACs) only). Default: any.
Exchangeexchangetext: Only IPOs on this exchange. Any by default.One of: any, nasdaq, nyse. Default: any.
Listed on or afterlisted_fromdate: Only IPOs whose first trading day is on or after this date.
Listed on or beforelisted_todate: Only IPOs whose first trading day is on or before this date.
Order bysorttext: How to order the list. Newest listing first by default.One of: newest (Newest listing first), oldest (Oldest listing first), best (Best performance since IPO), worst (Worst performance since IPO), largest (Largest deal first). Default: newest.
Maximum resultslimitnumber: The most IPOs to return, from 1 to 200. 50 by default.From 1 to 200. Default: 50.

Outputs

attributiontext: A ready-made credit line, for example 'Data: Segmara IPO calendar, segmara.com/ipo-calendar'. Segmara asks for it wherever the data is reused.
countnumber: How many rows the step returned.
itemslist: The IPOs that matched, in the order chosen.
source_urltext: The Segmara page this data comes from. Link to it when you share it.
total_matchesnumber: How many rows matched before 'Maximum results' cut the list.
updated_attext: When Segmara last refreshed this data, in UTC, for example '2026-10-15T11:43:29Z'.

Example output

{
  "attribution": "Data: Segmara recent IPOs, segmara.com/recent-ipos",
  "count": 1,
  "items": [
    {
      "change_since_ipo_percent": -5.29,
      "company": "TRex Bio, Inc.",
      "company_url": "https://segmara.com/blog/when-will-trex-bio-ipo",
      "deal_size_usd": 116666676,
      "exchange": "NASDAQ Global Select",
      "ipo_date": "2026-10-09",
      "ipo_price": 14.0,
      "latest_price": 13.26,
      "listing_type": "Operating company",
      "quote_as_of": "Oct 14, 2026 6:14 PM ET",
      "ticker": "TRXB"
    }
  ],
  "source_url": "https://segmara.com/recent-ipos",
  "total_matches": 1,
  "updated_at": "2026-10-14T22:14:44Z"
}

List this week's IPOs

Get this week's US IPO activity in one list: deals expected to price this week with their price range and size, deals that priced in the last 7 days with their final price, and new IPO filings. Filter by stage or company type. No API key required.

Inputs

Stagesstageslist: Which deals to include. Leave empty for all three.One or more of: expected (Expected to price this week), priced (Priced in the last 7 days), filed (Newly filed).
Company typelisting_typetext: Operating companies, blank-check companies (SPACs, which list to buy another business later), or both. Any by default.One of: any, operating_company (Operating companies only), spac (Blank-check companies (SPACs) only). Default: any.

Outputs

attributiontext: A ready-made credit line, for example 'Data: Segmara IPO calendar, segmara.com/ipo-calendar'. Segmara asks for it wherever the data is reused.
countnumber: How many rows the step returned.
expected_countnumber: How many are expected to price this week.
filed_countnumber: How many are new filings.
itemslist: The deals, in Segmara's order.
priced_countnumber: How many priced in the last 7 days.
source_urltext: The Segmara page this data comes from. Link to it when you share it.
updated_attext: When Segmara last refreshed this data, in UTC, for example '2026-10-15T11:43:29Z'.

Example output

{
  "attribution": "Data: Segmara IPOs this week, segmara.com/ipos-this-week",
  "count": 1,
  "expected_count": 1,
  "filed_count": 0,
  "items": [
    {
      "company": "Iambic Therapeutics, Inc.",
      "company_url": "https://segmara.com/blog/when-will-iambic-therapeutics-ipo",
      "deal_size_usd": 183281250,
      "exchange": "NASDAQ Global Select",
      "expected_date": "2026-10-15",
      "filed_date": null,
      "final_price": null,
      "listing_type": "Operating company",
      "price_range_high": 17.0,
      "price_range_low": 15.0,
      "priced_date": null,
      "shares_offered": 9375000,
      "stage": "expected",
      "stage_label": "Expected to price this week",
      "ticker": "IAM"
    }
  ],
  "priced_count": 0,
  "source_url": "https://segmara.com/ipos-this-week",
  "updated_at": "2026-10-15T11:43:29Z"
}

Look up a company's IPO

Find everything Segmara has on one company in a single step: its stage on the IPO calendar, this week's deal, its IPO price and performance since, its lock-up expiry and its S-1 filing. Search by name or ticker. No API key required.

Inputs

Company or tickercompanytextRequired: The company's name (or part of it) or its exact ticker. Endings like 'Inc.' are ignored.

Outputs

attributiontext: A ready-made credit line, for example 'Data: Segmara IPO calendar, segmara.com/ipo-calendar'. Segmara asks for it wherever the data is reused.
companytext: The company's name as filed. Null when not found.
filingobject: Its S-1 filing this month. Null when it has none.
foundtrue/false: Whether any of Segmara's lists mention the company.
found_inlist: Which lists mention it: 'ipo_calendar', 'ipos_this_week', 'recent_ipos', 'lockups', 'filings'.
ipo_calendarobject: Its entry on the IPO calendar. Null when it has none.
lockupobject: Its estimated lock-up expiry. Null when it has none.
recent_ipoobject: Its IPO and performance since, if it listed in the last six months. Null otherwise.
this_weekobject: Its deal on this week's IPO list. Null when it has none.
tickertext: Its ticker. Null when not found or not yet known.

Example output

{
  "attribution": "Data: Segmara IPO calendar, segmara.com/ipo-calendar",
  "company": "TRex Bio, Inc.",
  "filing": null,
  "found": true,
  "found_in": [
    "ipo_calendar",
    "recent_ipos"
  ],
  "ipo_calendar": {
    "company": "TRex Bio",
    "company_url": "https://segmara.com/blog/when-will-trex-bio-ipo",
    "exchange": "Nasdaq (TRXB)",
    "latest_update_date": "2026-10-08",
    "stage": "priced_or_listed",
    "stage_label": "Priced or listed",
    "summary": "Priced its IPO of 8,333,334 shares at $14.00 on October 8, 2026, the low end of its $14 to $16 range, after the SEC declared its S-1 effective that day; the company said trading on Nasdaq as TRXB was expected to begin October 9, 2026."
  },
  "lockup": null,
  "recent_ipo": {
    "change_since_ipo_percent": -5.29,
    "company": "TRex Bio, Inc.",
    "company_url": "https://segmara.com/blog/when-will-trex-bio-ipo",
    "deal_size_usd": 116666676,
    "exchange": "NASDAQ Global Select",
    "ipo_date": "2026-10-09",
    "ipo_price": 14.0,
    "latest_price": 13.26,
    "listing_type": "Operating company",
    "quote_as_of": "Oct 14, 2026 6:14 PM ET",
    "ticker": "TRXB"
  },
  "this_week": null,
  "ticker": "TRXB"
}

ActionsCopy Anchor Link

Get the IPO calendarCopy Anchor Link

Inputs

Outputs

List IPO lock-up expirationsCopy Anchor Link

Inputs

Outputs

List new IPO filingsCopy Anchor Link

Inputs

Outputs

List recent IPOsCopy Anchor Link

Inputs

Outputs

List this week's IPOsCopy Anchor Link

Inputs

Outputs

Look up a company's IPOCopy Anchor Link

Inputs

Outputs

On this page

Actions

Get the IPO calendar

List IPO lock-up expirations

List new IPO filings

List recent IPOs

List this week's IPOs

Look up a company's IPO