Security key
39868T105
Gritstone bio, Inc. - Common Stock, $0.0001 par value per share (GRTS)
CUSIP: 39868T105
Q4 2019 13F Holders as of 31 Dec 2019
- Security type / class
- Equity / Common Stock, $0.0001 par value per share
- Total 13F shares
- 26,131,590
- Total 13F value
- $234,363,395
- Share change
- +631,571
- SEC-reported price per share
- $8.97
- Number of holders
- 55
- Value change
- +$5,808,914
- Number of buys
- 31
- Number of sells
- 21
- Shares outstanding
- 160,529,963
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2019
Institutions
55
Top holders
10
GRTS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Gritstone bio, Inc. SEC filings
Gritstone bio, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 39868T105
Recent filing periods:
Ownership snapshot
Top reported holders of GRTS - Gritstone bio, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
FMR LLC
Disclosed value leader
FMR LLC
Comparable rows
15/15
Latest evidence
30 Sep 2019
13F
Lead comparable stake: 3.3%
Showing 1-6 of 15 holder rows.
Quick read
FMR LLC leads the comparable SEC ownership view at 3.3%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens FMR LLC's linked filing trail.
Comparable ownership
Top 5
FMR LLC
3.3%
Redmile Group, LLC
1.9%
Peter Svennilson
1.9%
Versant Venture Management, LLC
1.9%
Blackstone Inc.
1.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| FMR LLC |
13F
Company
|
3.3%
|
$46,335,000
5,366,039 shares
|
— | 30 Sep 2019 |
| Redmile Group, LLC |
13F
Company
|
1.9%
|
$26,807,000
3,104,494 shares
|
— | 30 Sep 2019 |
| Peter Svennilson |
13F
Individual
|
1.9%
|
$26,809,000
3,102,934 shares
|
— | 30 Sep 2019 |
| Versant Venture Management, LLC |
13F
Company
|
1.9%
|
$26,793,792
3,102,929 shares
|
— | 30 Sep 2019 |
| Blackstone Inc. |
13F
Company
|
1.6%
|
$22,183,000
2,567,445 shares
|
— | 30 Sep 2019 |
| FRAZIER MANAGEMENT LLC |
13F
Company
|
1.3%
|
$17,803,000
2,061,758 shares
|
— | 30 Sep 2019 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2019
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
55
Shares
26,131,590
Rows available
55
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2019 vs Q3 2025 Across Filers
Q3 2025 holders
1
Q4 2019 holders
55
Holder diff
54
| Investor | Q3 2025 Shares | Q4 2019 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2019 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend