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Form 8-K disclosures mentioning a lockup, by month

Answered against 22 years of US equities and 12 years of US options data and published with the query that produced it. This result is stored as of 2026-08-22, from Early Lockup Release: Triggers and Waivers.

as of series 17×4read in context →
Form 8-K disclosures mentioning a lockup, by month — 17 rows by 4 columns, computed from US exchange, SIP and OPRA data.
monthmonth_labelfilingscompanies
2025-01-01Jan 202522
2025-02-01Feb 202522
2025-03-01Mar 202511
2025-04-01Apr 202533
2025-05-01May 202522
2025-06-01Jun 202533
2025-07-01Jul 202511
2025-08-01Aug 202544
2025-09-01Sep 202522
2025-10-01Oct 202533
2025-11-01Nov 202544
2025-12-01Dec 202511
2026-01-01Jan 202622
2026-03-01Mar 202644
2026-05-01May 202622
2026-06-01Jun 202655
2026-07-01Jul 202622
Rows × columns
17 × 4
Period covered
to
Computed
Completeness
No missing values
Source
US exchange, SIP and OPRA market data
Licence
Strasmore terms · free, no signup
Formats
JSON · CSV · the SQL below

What each column holds

Column definitions for Form 8-K disclosures mentioning a lockup, by month, derived from the stored result.
ColumnTypeRangeNotes
month date 2025-01-01 to 2026-07-01
month_label text 17 distinct values (Apr 2025, Aug 2025, Dec 2025…)
filings number 1 to 5
companies number 1 to 5

Computed from Strasmore's warehouse of US exchange, SIP and OPRA market data. Equity prices are delayed; options greeks and implied volatility are end-of-day. This result is stored, not recomputed on load — it is exactly the numbers that were returned on , and the query below is what returned them.

the exact SQL behind every number
SELECT
    toString(toStartOfMonth(filing_date))                AS month,
    formatDateTime(toStartOfMonth(filing_date), '%b %Y') AS month_label,
    countDistinct(accession_number)                      AS filings,
    countDistinct(cik)                                   AS companies
FROM global_markets.stocks_8k_disclosures
WHERE filing_date >= '2023-01-01'
  AND filing_date <  toStartOfMonth(today())
  AND (supporting_text ILIKE '%lock-up%' OR supporting_text ILIKE '%lockup%')
GROUP BY month, month_label
ORDER BY month

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