# Eastern Bankshares, Inc. (EBC) insider trading

> In the 12 months to Nov 4, 2026, 8 EBC insiders reported open-market sales of $9.4M across 17 filings; one chief financial officer bought $188.1K.

Canonical: https://massive.com/quote/ebc/insider-trading
Latest filing: 2026-09-15 (last 12 months; source: SEC EDGAR)
Source: Massive (https://massive.com/docs/llms.txt)

## Summary

| Measure | Value | Detail |
| --- | --- | --- |
| Open-market sales | $9.4M | 17 filings · 8 insiders |
| Open-market purchases | $188.1K | 1 filing · R. David Rosato, Chief Financial Officer |
| Pre-arranged sales (10b5-1) | 9 of 17 | $1.2M of $9.4M sold (13%) |

## Open-market trades by insider

| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
| --- | --- | --- | --- | --- | --- | --- |
| Joseph F. Casey | Director | $7.1M | — | 6 | 14% of sales | 2026-08-26 |
| Donald Michael Westermann | Chief Information Officer | $1.1M | — | 2 | — | 2026-09-02 |
| Kathleen Cloherty Henry | Executive VP, General Counsel | $303.5K | — | 1 | — | 2026-09-03 |
| Steven Louis Antonakes | Executive VP | $296.3K | — | 1 | — | 2026-09-02 |
| Luis Borgen | Director | $249.1K | — | 4 | 100% of sales | 2026-07-07 |
| David Andrew Ahlquist | SVP, Chief Accounting Officer | $216.5K | — | 1 | — | 2026-02-05 |
| R. David Rosato | Chief Financial Officer | — | $188.1K | 1 | — | 2026-03-09 |
| Richard Corey Bane | Director | $87.1K | — | 1 | — | 2026-09-15 |
| Denis K. Sheahan | Chief Executive Officer | $14 | — | 1 | — | 2026-03-03 |

## Open-market trades by filing

18 filings in the last 12 months, newest first.

| Filed | Traded | Insider | Role | Type | Shares | Avg price | Value | Held after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-15 | 2026-09-14 | Richard Corey Bane | Director | Sale | 4,000 | $21.78 | $87.1K | 198,498 | — |
| 2026-09-03 | 2026-09-02 | Kathleen Cloherty Henry | Executive VP, General Counsel | Sale | 14,000 | $21.68 | $303.5K | 43,146 | — |
| 2026-09-02 | 2026-09-01 | Donald Michael Westermann | Chief Information Officer | Sale | 33,412 | $21.54 | $719.6K | Multiple accounts | — |
| 2026-09-02 | 2026-09-01 | Steven Louis Antonakes | Executive VP | Sale | 13,500 | $21.95 | $296.3K | 61,790 | — |
| 2026-08-26 | 2026-08-25 | Joseph F. Casey | Director | Sale (10b5-1) | 1,778 | $22.69 | $40.3K | 60,301 | — |
| 2026-08-25 | 2026-08-24 | Joseph F. Casey | Director | Sale (10b5-1) | 10,000 | $22.72 | $227.2K | 62,079 | — |
| 2026-08-24 | 2026-08-21 | Joseph F. Casey | Director | Sale (10b5-1) | 10,000 | $22.96 | $229.6K | 72,079 | — |
| 2026-08-21 | 2026-08-20 | Joseph F. Casey | Director | Sale (10b5-1) | 10,000 | $22.88 | $228.8K | 82,079 | — |
| 2026-08-20 | 2026-08-19 | Joseph F. Casey | Director | Sale (10b5-1) | 10,000 | $23.62 | $236.2K | 92,079 | — |
| 2026-07-07 | 2026-07-06 | Luis Borgen | Director | Sale (10b5-1) | 1,710 | $22.71 | $38.8K | 20,475 | — |
| 2026-06-30 | 2026-06-29 | Luis Borgen | Director | Sale (10b5-1) | 1,709 | $21.97 | $37.5K | 22,185 | — |
| 2026-03-09 | 2026-03-05 | R. David Rosato | Chief Financial Officer | Purchase | 10,000 | $18.81 | $188.1K | 50,000 | — |
| 2026-03-03 | 2025-09-16 | Denis K. Sheahan | Chief Executive Officer | Sale | 1 | $13.85 | $14 | 33,305 | — |
| 2026-02-05 | 2026-02-05 | David Andrew Ahlquist | SVP, Chief Accounting Officer | Sale | 10,000 | $21.65 | $216.5K | 9,518 | — |
| 2026-01-29 | 2026-01-28 | Donald Michael Westermann | Chief Information Officer | Sale | 21,256 | $20.11 | $427.5K | 20,860 | — |
| 2025-12-09 | 2025-12-08 | Luis Borgen | Director | Sale (10b5-1) | 4,500 | $19.33 | $87.0K | 20,011 | — |
| 2025-12-02 | 2025-12-01 | Luis Borgen | Director | Sale (10b5-1) | 4,500 | $19.05 | $85.7K | 24,511 | — |
| 2025-12-01 | 2025-11-26 | Joseph F. Casey | Director | Sale | 322,771 | $19.03 | $6.1M | 36,112 | — |

## Other insider activity (not market trades)

- Option exercises: 19 records
- Tax withholding: 21 records
- Grants and awards: 20 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

## How to read this page

- **Open-market purchase or sale**: A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- **Pre-arranged (10b5-1)**: The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- **Filing date**: Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.

## FAQ

### Has Eastern Bankshares, Inc.'s CEO sold stock?

Yes. Denis K. Sheahan (CEO) sold 1 shares ($14) in Mar 2026.

### How current is EBC’s insider data?

These are EBC Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.

### What counts as an open-market buy or sell?

Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.

## Live data

This page joins two Massive endpoints: Form 4 filings and daily prices. The EBC Form 4 request:

- `GET https://api.massive.com/stocks/filings/vX/form-4?tickers=EBC&filing_date.gte=2025-11-04&sort=filing_date.desc&limit=500`

Requests need a Massive API key. API reference for agents: https://massive.com/docs/llms.txt. Connect an AI agent through the Massive MCP server: https://massive.com/docs/ai-tools.

## Related

- [Eastern Bankshares, Inc. (EBC) stock price](https://massive.com/quote/ebc.md)
- [Recent insider trading](https://massive.com/quote/insider-trading.md)
- [Markets overview](https://massive.com/quote/index.md)

Nothing here is investment advice. Data and content are provided for informational purposes under the Massive Terms of Service: https://massive.com/terms