Perestroika (Cyprus) Ltd
CIK 1737912 · last filed 2025-11-25
Perestroika (Cyprus) Ltd is a corporate insider who has filed 11 SEC Form 4 insider transactions across 1 company since 2018. The most recent filing shows the insider bought $6.0M of RIG on Nov 25, 2025. Across all open-market trades the lifetime net is +$51.8M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $542.8M across reported positions. The firm reports its address in Steinhausen. 12 SEC filings were submitted jointly with Transocean Ltd.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
RIG price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
TURMSTRASSE 30
STEINHAUSEN 6312
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RIG | Director | 96,574,894 | $5.62 | $542.75M | $51.80M | 11 | 2025-11-25 |
Recent Filings
11 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-11-25 | RIG | Buy (P) | +1,500,000 | $6.03M | EDGAR |
| 2025-09-30 | RIG | Buy (P) | +4,000,000 | $12.20M | EDGAR |
| 2024-09-13 | RIG | Buy (P) | +1,500,000 | $6.20M | EDGAR |
| 2024-08-05 | RIG | Buy (P) | +2,000,000 | $10.46M | EDGAR |
| 2024-05-17 | RIG | Buy (P) | +2,000,000 | $12.02M | EDGAR |
| 2024-02-29 | RIG | Buy (P) | +1,000,000 | $4.89M | EDGAR |
| 2023-09-19 | RIG | Buy (P) | +1,978,396 | $0 | EDGAR |
| 2023-04-25 | RIG | Conv (C) | +34,600,147 | $213.48M | EDGAR |
| 2022-12-14 | RIG | Other (J) | +14,900,000 | $0 | EDGAR |
| 2020-08-18 | RIG | Mixed | — | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.