Michel Vounatsos
CIK 1672709 · Chief Executive Officer · last filed 2026-06-22
Michel Vounatsos is a Chief Executive Officer who has filed 35 SEC Form 4 insider transactions across 4 companies since 2016. The most recent filing, for ZLAB, was dated Jun 22, 2026. Across all open-market trades the lifetime net is +$2.8M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $21.7M across reported positions. 24 SEC filings were submitted jointly with BIOGEN INC.
"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.
BIIB 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
C/O REVVITY
WALTHAM, MA 02451-7567
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ZLAB | Director | 72,787 | $24.34 | $1.77M | $0 | 4 | 2026-06-22 |
| RVTY | Director | 13,977 | $160.39 | $2.24M | $0 | 4 | 2026-05-11 |
| REVVITY, INC. (PKI) Delisted | Director | 4,608 | $115.24 | $531.0K | $0 | 4 | 2022-05-09 |
| BIIB | Chief Executive Officer | 70,007 | $252.26 | $17.66M | $2.77M | 23 | 2022-02-23 |
Recent Filings
35 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-22 | ZLAB | Grant (A) | +22,371 | $0 | EDGAR |
| 2026-05-11 | RVTY | Grant (A) | +2,280 | $0 | EDGAR |
| 2025-06-23 | ZLAB | Grant (A) | +10,831 | $0 | EDGAR |
| 2025-05-01 | RVTY | Grant (A) | +2,412 | $0 | EDGAR |
| 2024-06-20 | ZLAB | Grant (A) | +21,253 | $0 | EDGAR |
| 2024-05-02 | RVTY | Grant (A) | +2,195 | $0 | EDGAR |
| 2023-05-17 | RVTY | Grant (A) | +1,738 | $0 | EDGAR |
| 2023-03-07 | ZLAB | Grant (A) | +18,332 | $0 | EDGAR |
| 2022-05-09 | REVVITY, INC. (PKI) Delisted | Grant (A) | +1,354 | $0 | EDGAR |
| 2022-02-23 | BIIB | Mixed | +3,445 | -$576.1K | 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.