Shoulder Innovations, Inc.
Ownership
Ownership Structure
Who owns Shoulder Innovations, Inc. (SI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| FMR Inc | 17.65 | 3,673,960 | -2.9 | 06/30/2026 |
| BlackRock Inc | 3.07 | 638,420 | +14.8 | 06/30/2026 |
| Sectoral Asset Management Inc | 2.07 | 430,407 | +0.0 | 06/30/2026 |
| Vanguard Capital Management, LLC | 1.88 | 392,181 | -5.2 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Fidelity Select Medical Tech and Devcs | 4.55 | 947,763 | +0.0 | 08/31/2026 |
| Fidelity Small Cap Growth | 3.74 | 777,617 | +0.0 | 07/31/2026 |
| Fidelity Select Health Care | 2.62 | 545,286 | +0.0 | 08/31/2026 |
| Fidelity Balanced | 2.23 | 463,379 | -8.3 | 07/31/2026 |
| Fidelity Small Cap Growth K6 | 1.86 | 387,903 | +0.0 | 07/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 1.55 | 322,231 | +0.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Gilde Healthcare Holding B.V. | 10% Owner | 2,185,914 | 41,750,957 $ | Aug 26, 2026 | indirect |
| Ball Robert Joseph | CEO & Executive Chairman | 380,824 | 7,273,738 $ | Sep 14, 2026 | direct |
| Ahearn Matthew Fraser | Chief Operating Officer | 244,176 | 4,663,762 $ | Aug 18, 2026 | direct |
| Buckman Paul | Director | 65,025 | 1,241,978 $ | Oct 5, 2026 | direct |
| Tansey Casey M | Director | 53,445 | 1,020,800 $ | Oct 5, 2026 | direct |
| Sidow Kevin K. | Director | 25,948 | 495,607 $ | Oct 5, 2026 | direct |
| Hykes Andrew | Director | 7,438 | 142,066 $ | Oct 5, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | Sidow Kevin K. | Director | Other | 892 | 19.60 | 17,483 |
| Oct 5, 2026 | Hykes Andrew | Director | Other | 669 | 19.60 | 13,112 |
| Oct 5, 2026 | Tansey Casey M | Director | Other | 733 | 19.60 | 14,367 |
| Oct 5, 2026 | Buckman Paul | Director | Other | 1,275 | 19.60 | 24,990 |
| Sep 14, 2026 | Ball Robert Joseph | CEO & Executive Chairman | Sell | 10,175 | 18.45 | 187,706 |
| Sep 14, 2026 | Ball Robert Joseph | CEO & Executive Chairman | Other | 89,233 | 2.10 | 187,282 |
| Aug 26, 2026 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 1,196 | 22.60 | 27,030 |
| Aug 24, 2026 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 681 | 22.62 | 15,404 |
| Aug 21, 2026 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 20,516 | 22.61 | 463,867 |
| Aug 20, 2026 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 3,900 | 22.60 | 88,140 |
| Aug 18, 2026 | Ahearn Matthew Fraser | Chief Operating Officer | Sell | 1,600 | 21.38 | 34,211 |
| Aug 18, 2026 | Ahearn Matthew Fraser | Chief Operating Officer | Sell | 12,586 | 20.94 | 263,493 |
| Aug 17, 2026 | Ahearn Matthew Fraser | Chief Operating Officer | Sell | 8,314 | 20.10 | 167,101 |
| Aug 14, 2026 | Ahearn Matthew Fraser | Chief Operating Officer | Other | 2,500 | 0.00 | – |
| Aug 6, 2026 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 2,095 | 22.60 | 47,347 |
| Aug 5, 2026 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 7,338 | 22.64 | 166,132 |
| Aug 4, 2026 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 99,812 | 22.77 | 2,272,719 |
| Aug 3, 2026 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 10,751 | 22.71 | 244,155 |
| Jul 31, 2026 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 20,034 | 22.73 | 455,373 |
| Jul 30, 2026 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 28,245 | 23.36 | 659,803 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.