Borr Drilling BORR
Three insiders bought $49.7M over 30 days, within the 30-day window
Last open-market buy
- Tor Olav Troim $48M
- Harvey Edward Snowling $1.5M
- De Oliveira Bruno Morand $200K
Source: Form 4 filings on SEC EDGAR
Type a ticker for one company's Form 4s, or read today's open-market trades at companies with a public float under $300M (All companies is one tap away): buys first, then sales, cluster buys and each insider's record across companies.
6 of 14 companies whose last cluster buy was in the last 30 days, those with a public float under $2B first.
Three insiders bought $49.7M over 30 days, within the 30-day window
Last open-market buy
Three insiders bought $42.7M over 21 days, within the 30-day window
Last open-market buy
Four insiders bought $1.8M over 6 days, within the 30-day window
Last open-market buy
Six insiders bought $1.7M over 3 days, within the 30-day window
Last open-market buy
Five insiders bought $461K over 4 days, within the 30-day window
Last open-market buy
Four insiders bought $295K over 26 days, within the 30-day window
Last open-market buy
Notes on each row are as each Form 4 states them, next to SEC Tracker's own records of the company's filings and other insiders' buys. The Stake column is the change in their holding.
| Traded | Company | Insider | Trade | Value | Stake | Notes |
|---|---|---|---|---|---|---|
| Nov 2, 2026 Filed Nov 3, 2026 | Starz Entertainment STRZ | Jeffrey Hirsch CEO | Open-market buy 5,000 shares | $111K at $22.13 | +8% | Their first open-market buy here in SEC Tracker's records. 4 days after the company's 8-K filed Oct 29, 2026. |
| Nov 2, 2026 Filed Nov 3, 2026 | ProMIS Neurosciences PMN | Neil Cashman Chief Scientific Officer | Open-market buy 10,000 shares | $39K at $3.86 | +221% | Their first open-market buy here in SEC Tracker's records. 80 days after the company's SCHEDULE 13G/A filed Aug 14, 2026. |
| Nov 3, 2026 | Community Bancorp CMTV | Christopher L. Caldwell Officer | Open-market buy 500 shares | $21K at $42.98 | +4% | Their first open-market buy here in SEC Tracker's records. 7 days after the company's 8-K filed Oct 27, 2026. |
| Nov 2, 2026 Filed Nov 3, 2026 | Starz Entertainment STRZ | James M. Kapenstein Officer | Open-market buy 460 shares | $11K at $22.84 | +4% | Their first open-market buy here in SEC Tracker's records. 4 days after the company's 8-K filed Oct 29, 2026. |
| Oct 30, 2026 Filed Nov 3, 2026 | ProMIS Neurosciences PMN | Eugene Williams Director | Open-market buy 1,316 shares | $5K at $3.99 | +11% | Their first open-market buy here in SEC Tracker's records. 77 days after the company's SCHEDULE 13G/A filed Aug 14, 2026. |
| Nov 2, 2026 | Dolphin Entertainment DLPN | William O'Dowd IV CEO | Open-market buy 5,000 shares | $5K at $0.99 | +1% | 38 days after the company's DEFA14A filed Sep 25, 2026. |
| Oct 30, 2026 Filed Nov 3, 2026 | John Hancock GA Senior Loan Trust | Manufacturers Life Reinsurance 10% owner | Open-market buy 1,922,581 shares | $31M at $16.12 | +5% | Their first open-market buy here in SEC Tracker's records. 64 days after the company's NPORT-P filed Aug 27, 2026. |
| Oct 30, 2026 Filed Nov 3, 2026 | Sirius XM Holdings SIRI | Berkshire Hathaway 10% owner | Open-market buy 743,965 shares | $21.5M at $28.89 | +1% | Their first open-market buy here in SEC Tracker's records. 1 day after the company's 8-K filed Oct 29, 2026. |
| Nov 2, 2026 | Aspen Neuroscience ASPE | ARCH Venture Fund X 10% owner | Open-market buy 1,333,333 shares in 3 lines | $20M at $15.00 | Their first open-market buy here in SEC Tracker's records. The same day as the company's 8-K filed Nov 2, 2026. | |
| Nov 2, 2026 | Aspen Neuroscience ASPE | ARCH Venture Partners XIV 10% owner | Open-market buy 1,200,000 shares | $18M at $15.00 | Their first shares, by the holdings the Form 4 states. Their first open-market buy here in SEC Tracker's records. The same day as the company's 8-K filed Nov 2, 2026. | |
| Oct 30, 2026 Filed Nov 3, 2026 | John Hancock GA Senior Loan Trust | Manufacturers Life Insurance Co (Bermuda Branch) 10% owner | Open-market buy 756,629 shares | $12.2M at $16.12 | +4% | Their first open-market buy here in SEC Tracker's records. 64 days after the company's NPORT-P filed Aug 27, 2026. |
| Nov 3, 2026 | Sirius XM Holdings SIRI | Berkshire Hathaway 10% owner | Open-market buy 113,348 shares | $3.4M at $30.23 | +<1% | 5 days after the company's 8-K filed Oct 29, 2026. |
| Nov 2, 2026 Filed Nov 3, 2026 | Sirius XM Holdings SIRI | Berkshire Hathaway 10% owner | Open-market buy 66,968 shares | $2M at $29.47 | +<1% | 4 days after the company's 8-K filed Oct 29, 2026. |
| Oct 30, 2026 Filed Nov 3, 2026 | Calamos Aksia Hedged Strategies Fund | Calamos Aksia Hedged Strategies Fund (Offshore) 10% owner | Open-market buy 70,661 shares | $728K at $10.30 | +3% | Their first open-market buy here in SEC Tracker's records. 35 days after the company's SCHEDULE 13D/A filed Sep 25, 2026. |
| Nov 2, 2026 Filed Nov 3, 2026 | Caterpillar CAT | James C Fish Jr Director | Open-market buy 1,000 shares | $620K at $620.39 | +27% | Their first open-market buy here in SEC Tracker's records. 4 days after the company's 8-K filed Oct 29, 2026. |
| Oct 30, 2026 Filed Nov 3, 2026 | TPG RE Finance Trust TRTX | Wendy Silverstein Director | Open-market buy 38,900 shares | $253K at $6.51 | Their first shares, by the holdings the Form 4 states. Their first open-market buy here in SEC Tracker's records. The same day as the company's SCHEDULE 13G/A filed Oct 30, 2026. | |
| Nov 2, 2026 Filed Nov 3, 2026 | BlackRock Monticello Debt Real Estate Investment Trust | Thomas Francis Troy Director | Open-market buy 7,813 shares | $200K at $25.60 | +10% | Their first open-market buy here in SEC Tracker's records. 3 days after the company's 8-K filed Oct 30, 2026. |
| Oct 30, 2026 Filed Nov 3, 2026 | Mid America Apartment Communities MAA | Adrian Hill Officer | Open-market buy 844 shares | $100K at $118.35 | +1% | Their first open-market buy here in SEC Tracker's records. 1 day after the company's 10-Q filed Oct 29, 2026. |
| Nov 1, 2026 Filed Nov 3, 2026 | Taiwan Semiconductor Manufacturing TSM | Lipen Yuan VP | Open-market buy 1,000 shares | $71K at $71.49 | +14% | Their first open-market buy here in SEC Tracker's records. One of 7 insiders who bought $93K over 26 days, within the 30-day window. 5 days after the company's SCHEDULE 13G filed Oct 27, 2026. |
| Nov 2, 2026 Filed Nov 3, 2026 | Financial Institutions FISI | Andrew W Dorn Jr Director | Open-market buy 1,575 shares | $63K at $40.11 | +4% | Their first open-market buy here in SEC Tracker's records. 4 days after the company's 8-K filed Oct 29, 2026. |
124 open-market sales at companies with a public float of $2B or more are under Everything.
2 trades under $1K are left out here and listed under Everything.
The 10 insiders in these trades with the most bought and sold on the open market across every company, in SEC Tracker's records.
| Insider | Buys | Sales | Bought | Sold | Companies |
|---|---|---|---|---|---|
| Berkshire Hathaway | 3 | 1 | $26.9M | $69M | 2 |
| Qiming Corporate GP VI | 0 | 116 | $41.2M | 1 | |
| Manufacturers Life Reinsurance | 1 | 0 | $31M | 1 | |
| ARCH Venture Fund X | 3 | 0 | $20M | 1 | |
| ARCH Venture Partners XIV | 1 | 0 | $18M | 1 | |
| Manufacturers Life Insurance Co (Bermuda Branch) | 1 | 0 | $12.2M | 1 | |
| United Workers | 0 | 3 | $3.8M | 1 | |
| Barry Edward Balfe | 0 | 7 | $1.1M | 1 | |
| Edward Meyercord | 0 | 1 | $1.1M | 1 | |
| Sean P Downes | 0 | 2 | $965K | 1 |
Open-market trades are Form 4 transaction codes P (purchase) and S (sale). Planned sales are those the filing marks as made under a Rule 10b5-1 plan. A P-code buy at the offering price within a day of the company's FWP, 424B prospectus or offering 8-K is marked Bought in the offering and left out of open-market buy counts and cluster buys. Prices and values are as stated in each Form 4. Stock prices aren't shown on this page. Not investment advice.