Sierra Oncology, Inc.
Total Trades
24
Buys
6
Sells
9
Largest Trade
$1M+
Insiders
8
Institutional Funds
3
Inst. Value
$1M+
Activist Filings
17
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Turner William D. | Chief Reg & Tech O… | SELL | $100K–$500K | 6K | $37.24 | Apr 7, 2022 |
| Turner William D. | Chief Reg & Tech O… | EXERCISE | $50K–$100K | 6K | $12.05 | Apr 7, 2022 |
| Thomson Mary Christina | General Counsel | SELL | $50K–$100K | 2K | $35.14 | Apr 4, 2022 |
| Thomson Mary Christina | General Counsel | EXERCISE | $15K–$50K | 2K | $13.04 | Apr 4, 2022 |
| Turner William D. | Chief Reg & Tech O… | EXERCISE | $1K–$15K | 100 | $12.05 | Mar 22, 2022 |
| Turner William D. | Chief Reg & Tech O… | SELL | $1K–$15K | 100 | $37.05 | Mar 22, 2022 |
| Turner William D. | Chief Reg & Tech O… | EXERCISE | $15K–$50K | 3K | $12.05 | Mar 17, 2022 |
| Turner William D. | Chief Reg & Tech O… | SELL | $100K–$500K | 3K | $37.06 | Mar 17, 2022 |
| Thomson Mary Christina | General Counsel | SELL | $50K–$100K | 2K | $30.60 | Mar 4, 2022 |
| Thomson Mary Christina | General Counsel | EXERCISE | $15K–$50K | 2K | $13.04 | Mar 4, 2022 |
| Turner William D. | Chief Reg & Tech O… | SELL | $100K–$500K | 10K | $32.32 | Feb 8, 2022 |
| Turner William D. | Chief Reg & Tech O… | EXERCISE | $100K–$500K | 10K | $12.05 | Feb 8, 2022 |
| Thomson Mary Christina | General Counsel | EXERCISE | $15K–$50K | 2K | $13.04 | Feb 4, 2022 |
| Thomson Mary Christina | General Counsel | SELL | $50K–$100K | 2K | $29.78 | Feb 4, 2022 |
| Longitude Capital Partners III, LLC | 10% Owner | BUY | $1M+ | 175K | $27.00 | Feb 3, 2022 |
| Richardson Joshua | Director | BUY | $1M+ | 175K | $27.00 | Feb 3, 2022 |
| Sinclair Andrew | Director | BUY | $1M+ | 150K | $27.00 | Feb 1, 2022 |
| Abingworth LLP | 10% Owner | BUY | $1M+ | 150K | $27.00 | Feb 1, 2022 |
| Vivo Opportunity, LLC | 10% Owner | BUY | $1M+ | 800K | $27.00 | Feb 1, 2022 |
| Aggarwal Gaurav | Director | BUY | $1M+ | 800K | $27.00 | Jan 31, 2022 |
| Thomson Mary Christina | General Counsel & … | SELL | $50K–$100K | 2K | $29.00 | Jan 28, 2022 |
| Thomson Mary Christina | General Counsel & … | EXERCISE | $15K–$50K | 2K | $13.04 | Jan 28, 2022 |
| Turner William D. | Chief Reg & Tech O… | SELL | $100K–$500K | 5K | $27.05 | Jan 28, 2022 |
| Turner William D. | Chief Reg & Tech O… | EXERCISE | $50K–$100K | 5K | $12.05 | Jan 28, 2022 |
Institutional Ownership
13F filings as of Jun 30, 2022 · 3 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| PRELUDE CAPITAL MANAGEMENT, LLC | 48K | $1M+ | SH |
| Verition Fund Management LLC | 33K | $1M+ | SH |
| METROPOLITAN LIFE INSURANCE CO/NY | 900 | $15K–$50K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Rock Springs Capital Management LP
SC 13G/A · Feb 14, 2023
0.0%
0 shares
Asset Management Exchange Master ICAV
SC 13G/A · Feb 10, 2023
0.0%
0 shares
SC 13D/A · Jul 11, 2022
0.0%
0 shares
SC 13G/A · Jul 5, 2022
0.0%
0 shares
Longitude Capital Partners III, LLC
SC 13D/A · May 6, 2022
5.7%
1.5M shares
Asset Management Exchange Master ICAV
SC 13G · Apr 22, 2022
5.3%
1.3M shares
Frazier Life Sciences VIII, L.P.
SC 13G/A · Mar 29, 2022
2.2%
523K shares
SC 13D/A · Mar 21, 2022
8.9%
2.2M shares
SC 13D/A · Mar 15, 2022
12.2%
3.0M shares
Rock Springs Capital Management LP
SC 13G/A · Feb 14, 2022
7.9%
1.2M shares
Venrock Healthcare Capital Partners II, L.P.
SC 13G/A · Feb 14, 2022
6.1%
985K shares
SC 13G/A · Feb 14, 2022
7.0%
1.1M shares
SC 13G/A · Feb 11, 2022
2.3%
432K shares
New Leaf Biopharma Opportunities I, L.P. (“Biopharma I”)
SC 13G/A · Feb 11, 2022
0.6%
126K shares
SC 13D/A · Feb 10, 2022
11.3%
2.2M shares
SC 13G/A · Feb 10, 2022
9.2%
1.5M shares
Frazier Life Sciences VIII, L.P.
SC 13G/A · Jan 28, 2022
1.0%
148K shares