Insider · CIK 0001737133
Richard Buchholz
Files at INSP (Inspire Medical Systems, Inc.), SI (SHOULDER INNOVATIONS, INC.). First filing Aug 5, 2025, latest Mar 17, 2026.
Where the trades landed
Last year at the 2 companies this insider has traded most, with each buy and sell on the bar it happened.
SI: SHOULDER INNOVATIONS, INC.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
INSP: Inspire Medical Systems, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 26Weak | SHOULDER INNOVATIONS, INC. | $15k 1,000 shares | +8% | +35% from low-10% from high | |
| 52Moderate | INSPsell Inspire Medical Systems, Inc. | $1.0M 11,000 shares | -20% | +22% from low-57% from high | |
| 58Moderate | SHOULDER INNOVATIONS, INC. | $75k 5,000 shares | +65% | 0% from low-5% from high |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Mar 13, 2026 | SI SHOULDER INNOVATIONS, INC. | POpen-market purchase Common Stock | +1,000 | $14.84 | $15k | 13,666 | Mar 17, 2026 |
| Feb 13, 2026 | INSP Inspire Medical Systems, Inc. | FTax withholding Common Stock | -579 | $59.76 | $35k | 43,988 | Feb 18, 2026 |
| Feb 9, 2026 | INSP Inspire Medical Systems, Inc. | FTax withholding Common Stock | -327 | $66.33 | $22k | 44,567 | Feb 11, 2026 |
| Aug 29, 2025 | INSP Inspire Medical Systems, Inc. | SOpen-market sale Common Stock | -11,000 | $93.39 | $1.0M | 44,867 | Sep 2, 2025 |
| Aug 19, 2025 | INSP Inspire Medical Systems, Inc. | MOption exercise Common Stock | +17,849 | $71.00 | $1.3M | 54,088 | Aug 21, 2025 |
| Aug 19, 2025 | INSP Inspire Medical Systems, Inc. | MOption exercise Common Stock | +7,159 | $42.15 | $302k | 61,247 | Aug 21, 2025 |
| Aug 19, 2025 | INSP Inspire Medical Systems, Inc. | FTax withholding Common Stock | -2,649 | $90.24 | $239k | 58,598 | Aug 21, 2025 |
| Aug 19, 2025 | INSP Inspire Medical Systems, Inc. | FTax withholding Common Stock | -2,455 | $90.21 | $221k | 56,143 | Aug 21, 2025 |
| Aug 19, 2025 | INSP Inspire Medical Systems, Inc. | FTax withholding Common Stock | -276 | $90.28 | $25k | 55,867 | Aug 21, 2025 |
| Aug 19, 2025 | INSP Inspire Medical Systems, Inc. | MOption exercise Employee Stock Option (Right to Buy)derivative | -17,849 | $0.00 | $0 | 0 | Aug 21, 2025 |
| Aug 19, 2025 | INSP Inspire Medical Systems, Inc. | MOption exercise Employee Stock Option (Right to Buy)derivative | -7,159 | $0.00 | $0 | 0 | Aug 21, 2025 |
| Aug 1, 2025 | SI SHOULDER INNOVATIONS, INC. | AGrant or award Common Stock | +7,666 | $0.00 | $0 | 7,666 | Aug 5, 2025 |
| Aug 1, 2025 | SI SHOULDER INNOVATIONS, INC. | POpen-market purchase Common Stock | +5,000 | $15.00 | $75k | 12,666 | Aug 5, 2025 |
| Feb 21, 2025 | INSP Inspire Medical Systems, Inc. | GGift Common Stock | -500 | $0.00 | $0 | 32,174 | Feb 25, 2025 |
| Feb 21, 2025 | INSP Inspire Medical Systems, Inc. | GGift Common Stockindirect: Held by daughter | +125 | $0.00 | $0 | 1,475 | Feb 25, 2025 |
| Feb 21, 2025 | INSP Inspire Medical Systems, Inc. | GGift Common Stockindirect: Held by son | +125 | $0.00 | $0 | 1,475 | Feb 25, 2025 |
| Feb 21, 2025 | INSP Inspire Medical Systems, Inc. | GGift Common Stockindirect: Held by son | +125 | $0.00 | $0 | 1,475 | Feb 25, 2025 |
| Feb 21, 2025 | INSP Inspire Medical Systems, Inc. | GGift Common Stockindirect: Held by son | +125 | $0.00 | $0 | 1,475 | Feb 25, 2025 |
| Feb 24, 2025 | INSP Inspire Medical Systems, Inc. | AGrant or award Common Stock | +6,152 | $0.00 | $0 | 38,326 | Feb 25, 2025 |
| Feb 24, 2025 | INSP Inspire Medical Systems, Inc. | FTax withholding Common Stock | -2,200 | $186.45 | $410k | 36,126 | Feb 25, 2025 |
| Feb 9, 2025 | INSP Inspire Medical Systems, Inc. | FTax withholding Common Stock | -314 | $182.15 | $57k | 27,598 | Feb 18, 2025 |
| Feb 13, 2025 | INSP Inspire Medical Systems, Inc. | AGrant or award Common Stock | +5,076 | $0.00 | $0 | 32,674 | Feb 18, 2025 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.