Michael O. Gilles - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Michael O. Gilles has filed 2 SEC Form 4 filings across 1 company in the last 90 days - buying. Lifetime open-market purchases: $155K.
Profile
Michael O. Gilles is Director at Avidia Bancorp, Inc. (AVBC). Gilles has reported 1 insider filing with the SEC since 2026. The most recent filing was in May 2026.
| Role | Director |
|---|---|
| Notability | 26/100 |
Board memberships
- Avidia Bancorp, Inc.
Reported roles
- Director
Awards & honors
- Director at Avidia Bancorp, Inc. (as of SEC filing on 2026-05-15)
Trading Pattern
InsiderAlpha's records for Michael O. Gilles go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $26K (6 buys totaling $155K). The largest single buy on record is $58K of AVBC in 2026. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Michael O. Gilles has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Director at Avidia Bancorp, Inc. (AVBC) - 2 filings, 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-30 | AVBC | Avidia Bancorp, Inc. | P - Open-market purchase | 1.0K | $18.92 | $19K |
| 2026-07-30 | AVBC | Avidia Bancorp, Inc. | P - Open-market purchase | 1.0K | $19.17 | $19K |
| 2026-07-30 | AVBC | Avidia Bancorp, Inc. | P - Open-market purchase | 1.0K | $19.12 | $19K |
| 2026-05-15 | AVBC | Avidia Bancorp, Inc. | P - Open-market purchase | 1.0K | $19.50 | $20K |
| 2026-05-15 | AVBC | Avidia Bancorp, Inc. | P - Open-market purchase | 1.0K | $19.50 | $19K |
| 2026-05-15 | AVBC | Avidia Bancorp, Inc. | P - Open-market purchase | 3.0K | $19.50 | $58K |
Companies - Last 90 Days
- Avidia Bancorp, Inc. (AVBC) - 2 filings, last 2026-07-30
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Michael O. Gilles has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Robert D. Cozzone - $1.06M of AVBC open-market activity in the last 12 months
- Barry H. Jensen - $596K of AVBC open-market activity in the last 12 months
- Jonathan Michael Nelson - $564K of AVBC open-market activity in the last 12 months
- Nicolas Karmelek - $421K of AVBC open-market activity in the last 12 months
- Michael Neil Flanigan - $326K of AVBC open-market activity in the last 12 months
- Michael Dennis Murphy - $290K of AVBC open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Andrew J. Mills
- Charles N. Mills
- Kevin J. Mills
- Mink Brook Asset Management LLC
- Shankh Mitra
- MITSUI SUMITOMO INSURANCE CO LTD
- Arturo R. Moreno
- Matthew T. Moroun
Frequently Asked Questions
Who is Michael O. Gilles?
Michael O. Gilles is Director at Avidia Bancorp, Inc. (AVBC). Gilles has reported 1 insider filing with the SEC since 2026. The most recent filing was in May 2026.…
How many SEC Form 4 filings has Michael O. Gilles submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Michael O. Gilles been buying or selling stock?
Recorded transactions: 6 open-market purchases ($155K) and 0 open-market sales across all tracked filings.
Where can I see all of Michael O. Gilles's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Michael O. Gilles profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.