Boston Scientific
Builds minimally invasive devices for cardiovascular, endoscopic, urological and neuromodulation procedures.
$46.85
After-hours close+0.02 (+0.03%)
At close$46.84(+0.35%)
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Breakdown13F · Form 4
Institutions 96.54%1.43B sharesInsiders 0.16%2.33M sharesOther 3.30%49.15M shares
Shares outstanding 1.49B · Float 1.48B · 99.5% free float
Institutions13F, as of Jun 30, 2026
1,565 holders · 1.43B shares · 155 new positions · 742 increased · 608 reduced · 353 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 129.68M | 8.72% | −2.14M | Aug 7, 2026 |
| Vanguard Capital Management LLC | 97.09M | 6.53% | +676.0K | Aug 13, 2026 |
| State Street Corp | 70.11M | 4.72% | +2.12M | Aug 7, 2026 |
| Primecap Management Co/CA/ | 50.52M | 3.40% | +17.99M | Aug 14, 2026 |
| FMR LLC | 45.70M | 3.07% | −28.52M | Aug 13, 2026 |
| Geode Capital Management, LLC | 33.44M | 2.25% | +154.3K | Aug 12, 2026 |
| Vanguard Portfolio Management LLC | 29.79M | 2.00% | −3.4K | Aug 13, 2026 |
| D. E. Shaw & Co., Inc. | 25.46M | 1.71% | +1.15M | Aug 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 7.60% | 113.01M | 13G | Apr 17, 2025 ↗ |
| Vanguard Capital Management | 7.47% | 111.13M | 13G | Apr 29, 2026 ↗ |
| FMR LLC | 5.10% | 75.84M | 13G | May 6, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Michael F. Mahoney | director, officer: Chairman, President & CEO | 1.61M | 0.11% | Aug 5, 2026 |
| Joseph Michael Fitzgerald | officer: EVP & Group Pres, Cardiology | 278.1K | 0.02% | Aug 3, 2026 |
| Arthur C. Butcher | officer: EVP& Grp Pres, MedSurg & APAC | 77.1K | 0.01% | May 4, 2026 |
| John E. Sununu | director | 54.7K | 0.00% | May 9, 2025 |
| Vance R. Brown | officer: EVP, GC and Corp. Secretary | 54.2K | 0.00% | Feb 18, 2026 |
| Jonathan Monson | officer: EVP and CFO | 49.0K | 0.00% | Aug 11, 2026 |
| David S. Wichmann | director | 45.4K | 0.00% | May 11, 2026 |
| Edward J. Ludwig | director | 30.4K | 0.00% | Aug 3, 2026 |
| Ellen M. Zane | director | 27.9K | 0.00% | May 11, 2026 |
| Miriam O'Sullivan | officer: SVP, Chief HR Officer | 19.0K | 0.00% | Feb 18, 2026 |
1 ten-percent owner holds 54.64M shares by Form 4, outside the officers-and-directors figure above · 64 people have not refiled in the last 18 months (9.43M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 25, 2026 | Susan E. Moranodirector | Purchase | 2,040 | $49.22 | 13,784 |
| Aug 5, 2026 | David C. Habigerdirector | Purchase | 2,100 | $47.59 | 17,160 |
| Aug 3, 2026 | Michael F. Mahoneydirector, officer: Chairman, President & CEO | Purchase | 186,240 | $48.33 | 1,590,024 |
| Aug 3, 2026 | David C. Habigerdirector | Purchase | 1,042 | $48.07 | 14,920 |
| Aug 4, 2026 | David C. Habigerdirector | Purchase | 140 | $48.59 | 15,060 |
| Jul 31, 2026 | Edward J. Ludwigdirector | Purchase | 5,000 | $45.48 | 30,359 |
| May 19, 2026 | David C. Habigerdirector | Purchase | 2,200 | $56.95 | 11,628 |
| May 20, 2026 | David C. Habigerdirector | Purchase | 2,250 | $55.92 | 13,878 |
| May 20, 2026 | Edward J. Ludwigdirector | Purchase | 3,580 | $56.68 | 25,359 |
| May 20, 2026 | Cheryl Pegusdirector | Purchase | 1,770 | $56.49 | 1,770 |
CongressHouse and Senate disclosures
| Member | Type | Amount | Owner | Traded | Disclosed |
|---|---|---|---|---|---|
| Rep. Ro Khanna · CA17 | Sale | $1,001 – $15,000 | Jul 7, 2026 | Aug 12, 2026 ↗ | |
| Sen. John Boozman · AR | Sale | $1,001 – $15,000 | Joint | Jun 4, 2026 | Jul 13, 2026 ↗ |
| Rep. Ro Khanna · CA17 | Purchase | $1,001 – $15,000 | Jun 2, 2026 | Jul 8, 2026 ↗ | |
| Rep. Gilbert Cisneros · CA31 | Sale | $1,001 – $15,000 | Jun 5, 2026 | Jul 3, 2026 ↗ | |
| Rep. Gilbert Cisneros · CA31 | Purchase | $1,001 – $15,000 | May 29, 2026 | Jun 9, 2026 ↗ |