Over the last 12 months, Eastern Bankshares insiders reported 3 buys totaling $1.4M and 16 sales totaling $9.0M across SEC Form 4 filings. 47% of those filings were made under pre-arranged 10b5-1 trading plans.
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Sep 1, 2026 | Antonakes Steven LouisExecutive VP · O | ▼ Sale | 13,500 | $21.95 | $296K | -17.9% | — |
| Sep 1, 2026 | Westermann Donald MichaelChief Information Officer · O | ▼ Sale | 23,005 | $21.43 | $493K | -100% | indirect |
| Sep 1, 2026 | Westermann Donald MichaelChief Information Officer · O | ▼ Sale | 10,407 | $21.77 | $227K | -31.6% | — |
| Aug 25, 2026 | CASEY JOSEPH FD | ▼ Sale | 1,778 | $22.69 | $40K | -2.9% | plan · indirect |
| Aug 24, 2026 | CASEY JOSEPH FD | ▼ Sale | 10,000 | $22.72 | $227K | -13.9% | plan · indirect |
| Aug 21, 2026 | CASEY JOSEPH FD | ▼ Sale | 10,000 | $22.96 | $230K | -12.2% | plan · indirect |
| Aug 20, 2026 | CASEY JOSEPH FD | ▼ Sale | 10,000 | $22.88 | $229K | -10.9% | plan · indirect |
| Aug 19, 2026 | CASEY JOSEPH FD | ▼ Sale | 10,000 | $23.62 | $236K | -9.8% | plan · indirect |
| Jul 6, 2026 | Borgen LuisD | ▼ Sale | 1,710 | $22.71 | $39K | -7.7% | plan |
| Jun 29, 2026 | Borgen LuisD | ▼ Sale | 1,709 | $21.97 | $38K | -7.2% | plan |
| Mar 6, 2026 | Rosato R DavidChief Financial Officer · O | ▲ Buy | 10,000 | $18.81 | $188K | +25% | 2 tranches · indirect |
| Feb 5, 2026 | Ahlquist David AndrewSVP, Chief Accounting Officer · O | ▼ Sale | 10,000 | $21.65 | $217K | -51.2% | — |
| Jan 28, 2026 | Westermann Donald MichaelChief Information Officer · O | ▼ Sale | 21,256 | $20.11 | $427K | -50.5% | — |
| Dec 8, 2025 | Borgen LuisD | ▼ Sale | 4,500 | $19.33 | $87K | -18.4% | plan |
| Dec 1, 2025 | Borgen LuisD | ▼ Sale | 4,500 | $19.05 | $86K | -15.5% | plan |
| Nov 26, 2025 | CASEY JOSEPH FD | ▼ Sale | 322,771 | $19.03 | $6.1M | -89.9% | — |
| Oct 29, 2025 | Rosato R DavidChief Financial Officer · O | ▲ Buy | 20,000 | $16.98 | $340K | +100% | 2 tranches · indirect |
| Oct 28, 2025 | Rivers Robert FrancisExecutive Chair · O·D | ▲ Buy | 50,000 | $17.21 | $861K | +14.2% | — |
| Sep 16, 2025 | SHEAHAN DENIS KChief Executive Officer · O·D | ▼ Sale | 1 | $13.85 | $14 | — | late · indirect |
| Aug 27, 2025 | Antonakes Steven LouisExecutive VP · O | ▲ Buy | 5,244 | $17.07 | $90K | +68.3% | indirect |
| Aug 27, 2025 | Antonakes Steven LouisExecutive VP · O | ▲ Buy | 940 | $17.02 | $16K | +1.5% | — |
| Aug 27, 2025 | Henry Kathleen ClohertyExecutive VP, General Counsel · O | ▲ Buy | 5,855 | $17.07 | $100K | +26.2% | indirect |
| Aug 27, 2025 | Miller Quincy LeePresident · O | ▲ Buy | 13,706 | $17.07 | $234K | — | indirect |
| Aug 25, 2025 | SHEAHAN DENIS KChief Executive Officer · O·D | ▲ Buy | 29,762 | $16.71 | $497K | — | — |
| Aug 25, 2025 | Rivers Robert FrancisExecutive Chair · O·D | ▲ Buy | 44,642 | $16.71 | $746K | +14.5% | — |
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Eastern Bankshares filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $EBC feed.