Jean George insider trades: Shoulder Innovations (SI) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Jean reports to the SEC






and 3 more companies
Open-market buys and sales
30 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 1, 2025 | SI | ↑ Buy | 266,666 | $15.00 | $4.0M | Indirect | Aug 5, 2025 (4d) |
| Dec 13, 2021 | ALXO | ↓ Sell | 42,588 | $26.61 | $1.1M | By Lightstone Ventures, L.P. | Dec 15, 2021 (2d) |
| Dec 13, 2021 | ALXO | ↓ Sell | 5,802 | $26.61 | $154K | By Lightstone Ventures (A), L.P. | Dec 15, 2021 (2d) |
| Dec 10, 2021 | ALXO | ↓ Sell | 128,173 | $32.26 | $4.1M | By Lightstone Ventures, L.P. | Dec 10, 2021 (0d) |
| Dec 10, 2021 | ALXO | ↓ Sell | 17,464 | $32.26 | $563K | By Lightstone Ventures (A), L.P. | Dec 10, 2021 (0d) |
| Jul 21, 2020 | ALXO | ↑ Buy | 400,000 | $19.00 | $7.6M | Indirect | Jul 22, 2020 (1d) |
| Jun 28, 2019 | XLRN | ↓ Sell | 11,812 | $41.17 | $486K | Indirect | Jun 28, 2019 (0d) |
| Jun 26, 2019 | XLRN | ↓ Sell | 25,688 | $39.16 | $1.0M | Direct | Jun 28, 2019 (2d) |
| Dec 15, 2017 | XLRN | ↓ Sell | 105,122 | $35.73 | $3.8M | Indirect | Dec 18, 2017 (3d) |
| Nov 17, 2016 | XLRN | ↓ Sell | 453,505 | $38.39 | $17.4M | Indirect | Nov 18, 2016 (1d) |
| Sep 30, 2016 | XLRN | ↓ Sell | 857,145 | $35.50 | $30.4M | Indirect | Oct 4, 2016 (4d) |
| Jun 30, 2015 | CATB | ↑ Buy | 258,776 | $12.00 | $3.1M | Indirect | Jun 30, 2015 (0d) |
| Jan 15, 2015 | ZLTQ | ↓ Sell | 17,483 | $29.26 | $511K | Direct | Jan 16, 2015 (1d) |
| Dec 9, 2014 | XLRN | ↓ Sell | 97,407 | $44.90 | $4.4M | Indirect | Dec 10, 2014 (1d) |
| Nov 3, 2014 | ZLTQ | ↓ Sell | 17,483 | $25.15 | $440K | Direct | Nov 4, 2014 (1d) |
| Oct 7, 2014 | CALA | ↑ Buy | 300,000 | $10.00 | $3.0M | By Partnership | Oct 9, 2014 (2d) |
| Jul 31, 2014 | ZLTQ | ↓ Sell | 18,662 | $20.09 | $375K | By LLC | Jul 31, 2014 (0d) |
| Jul 31, 2014 | ZLTQ | ↓ Sell | 10,495 | $20.09 | $211K | By Fund | Jul 31, 2014 (0d) |
| Jun 26, 2014 | XLRN | ↓ Sell | 10,491 | $35.01 | $367K | Indirect | Jun 27, 2014 (1d) |
| Jun 24, 2014 | XLRN | ↓ Sell | 25,477 | $35.16 | $896K | Indirect | Jun 24, 2014 (0d) |
| May 5, 2014 | XLRN | ↓ Sell | 215,644 | $42.86 | $9.2M | Indirect | May 6, 2014 (1d) |
| Jan 21, 2014 | ZLTQ | ↓ Sell | 19,893 | $22.62 | $450K | By LLC | Jan 22, 2014 (1d) |
| Jan 21, 2014 | ZLTQ | ↓ Sell | 11,187 | $22.62 | $253K | By Fund | Jan 22, 2014 (1d) |
| Nov 14, 2013 | ZLTQ | ↓ Sell | 4,025,000 | $12.22 | $49.2M | By Funds | Nov 18, 2013 (4d) |
| Jun 20, 2005 | CRTX | ↑ Buy | 1,027,702 | $5.48 | $5.6M | By Advanced Technology Ventures VII, L.P | Jun 22, 2005 (2d) |
| Jun 20, 2005 | CRTX | ↑ Buy | 171,533 | $5.48 | $940K | By Advanced Technology Ventures VI, L.P. | Jun 22, 2005 (2d) |
| Jun 20, 2005 | CRTX | ↑ Buy | 41,241 | $5.48 | $226K | By Advanced Technology Ventures VII (B), | Jun 22, 2005 (2d) |
| Jun 20, 2005 | CRTX | ↑ Buy | 19,823 | $5.48 | $109K | By Advanced Technology Ventures VII (C), | Jun 22, 2005 (2d) |
| Jun 20, 2005 | CRTX | ↑ Buy | 10,949 | $5.48 | $60K | By ATV Entrepreneurs VI, L.P. | Jun 22, 2005 (2d) |
| Jun 20, 2005 | CRTX | ↑ Buy | 6,125 | $5.48 | $34K | By ATV Entrepreneurs VII, L.P. | Jun 22, 2005 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other SI insiders
Open-market trades in the last 12 months
About Jean George's insider trades
Jean George is an insider at Shoulder Innovations (SI). Since Jun 20, 2005, Jean has reported 10 open-market purchases worth $24.7M and 20 sales worth $125.4M on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (28 filings), conversions (7 filings), option exercises (5 filings), other transactions (3 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every SI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.