How many institutions held GRTS - Gritstone bio, Inc. - Common Stock, $0.0001 par value per share in Q1 2021?

96 institutional investors reported GRTS - Gritstone bio, Inc. - Common Stock, $0.0001 par value per share for Q1 2021. Use the holders table for investor-level position and value details.

Gritstone bio, Inc. - Common Stock, $0.0001 par value per share (GRTS)

Q: What does CUSIP 39868T105 represent in this 13F holders report?

CUSIP 39868T105 is the security identifier for GRTS - Gritstone bio, Inc. - Common Stock, $0.0001 par value per share used to aggregate holder disclosures.

CUSIP: 39868T105

Q1 2021 13F Holders as of 31 Mar 2021

Type / Class: Equity / Common Stock, $0.0001 par value per share
Shares outstanding: 160,529,963
Total 13F shares: 34,045,816
Share change: +2,069,299
Total reported value: $321,066,530
Put/Call ratio: 49%
Price per share: $9.43
Number of holders: 96
Value change: +$42,420,523
Number of buys: 64
Number of sells: 31

Quarterly Holders Quick Answers

What is CUSIP 39868T105?
CUSIP 39868T105 identifies GRTS - Gritstone bio, Inc. - Common Stock, $0.0001 par value per share in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2021
Previous quarter: Q4 2020

Recent filing periods for CUSIP 39868T105:

Q4 2025 Q3 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024 Q4 2023

Top shareholders 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. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Versant Venture Management, LLC	13F	Company	2.8%	4,450,638	$17,536,000	—	31 Dec 2020	13F
EcoR1 Capital, LLC	13F	Company	2.1%	3,421,287	$13,480,000	—	31 Dec 2020	13F
Redmile Group, LLC	13F	Company	1.9%	3,059,794	$12,056,000	—	31 Dec 2020	13F
FMR LLC	13F	Company	1.8%	2,870,984	$11,312,000	—	31 Dec 2020	13F
BVF INC/IL	13F	Company	1.7%	2,695,418	$10,620,000	—	31 Dec 2020	13F
Blackstone Inc.	13F	Company	1.6%	2,567,445	$10,116,000	—	31 Dec 2020	13F
Avidity Partners Management LP	13F	Company	1.3%	2,122,064	$8,361,000	—	31 Dec 2020	13F
FRAZIER MANAGEMENT LLC	13F	Company	1.3%	2,061,758	$8,123,000	—	31 Dec 2020	13F
BlackRock Finance, Inc.	13F	Company	1.2%	1,965,506	$7,745,000	—	31 Dec 2020	13F
Column Group LLC	13F	Company	0.54%	869,493	$3,426,000	—	31 Dec 2020	13F
VANGUARD GROUP INC	13F	Company	0.51%	825,367	$3,252,000	—	31 Dec 2020	13F
STATE STREET CORP	13F	Company	0.32%	514,882	$2,029,000	—	31 Dec 2020	13F
Tekla Capital Management LLC	13F	Company	0.26%	419,005	$1,651,000	—	31 Dec 2020	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.26%	417,013	$1,643,000	—	31 Dec 2020	13F
Ensign Peak Advisors, Inc	13F	Company	0.21%	337,891	$1,331,000	—	31 Dec 2020	13F
MORGAN STANLEY	13F	Company	0.19%	309,428	$1,220,000	—	31 Dec 2020	13F
NORTHERN TRUST CORP	13F	Company	0.19%	298,953	$1,178,000	—	31 Dec 2020	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.16%	251,982	$993,000	—	31 Dec 2020	13F
D. E. Shaw & Co., Inc.	13F	Company	0.13%	206,362	$813,000	—	31 Dec 2020	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.11%	175,000	$690,000	—	31 Dec 2020	13F
JPMORGAN CHASE & CO	13F	Company	0.11%	172,816	$681,000	—	31 Dec 2020	13F
Nuveen Asset Management, LLC	13F	Company	0.1%	157,370	$620,000	—	31 Dec 2020	13F
JACOBS LEVY EQUITY MANAGEMENT, INC	13F	Company	0.09%	149,565	$589,000	—	31 Dec 2020	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.09%	141,511	$558,000	—	31 Dec 2020	13F
DEUTSCHE BANK AG\	13F	Company	0.08%	131,363	$517,000	—	31 Dec 2020	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.07%	114,792	$452,000	—	31 Dec 2020	13F
Roman Yelensky	3/4/5	Executive Vice President and Chief Technology Officer	— class O/S missing	234,672	$446,440	—	08 Mar 2021	3/4/5
Walleye Capital LLC	13F	Company	0.07%	106,688	$420,000	—	31 Dec 2020	13F
Russell Investments Group, Ltd.	13F	Company	0.06%	101,342	$399,000	—	31 Dec 2020	13F
Bank of New York Mellon Corp	13F	Company	0.06%	88,648	$349,000	—	31 Dec 2020	13F
CAPTRUST FINANCIAL ADVISORS	13F	Company	0.05%	75,884	$299,000	—	31 Dec 2020	13F
SkyOak Wealth, LLC	13F	Company	0.04%	69,778	$275,000	—	31 Dec 2020	13F
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC	13F	Company	0.04%	66,467	$262,000	—	31 Dec 2020	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.04%	63,895	$252,000	—	31 Dec 2020	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.04%	60,100	$237,000	—	31 Dec 2020	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.03%	52,208	$206,000	—	31 Dec 2020	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.03%	44,805	$177,000	—	31 Dec 2020	13F
Walleye Trading LLC	13F	Company	0.03%	41,366	$163,000	—	31 Dec 2020	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.03%	40,800	$161,000	—	31 Dec 2020	13F
RHUMBLINE ADVISERS	13F	Company	0.02%	38,492	$152,000	—	31 Dec 2020	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.02%	37,635	$148,000	—	31 Dec 2020	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.02%	33,038	$130,000	—	31 Dec 2020	13F
Squarepoint Ops LLC	13F	Company	0.02%	32,172	$127,000	—	31 Dec 2020	13F
ExodusPoint Capital Management, LP	13F	Company	0.02%	29,611	$117,000	—	31 Dec 2020	13F
Cannell & Spears LLC	13F	Company	0.02%	28,380	$112,000	—	31 Dec 2020	13F
HRT FINANCIAL LP	13F	Company	0.02%	24,685	$97,000	—	31 Dec 2020	13F
HighTower Advisors, LLC	13F	Company	0.01%	23,500	$93,000	—	31 Dec 2020	13F
CITIGROUP INC	13F	Company	0.01%	21,459	$85,000	—	31 Dec 2020	13F
Raymond James Financial Services Advisors, Inc.	13F	Company	0.01%	19,200	$76,000	—	31 Dec 2020	13F
Ergoteles LLC	13F	Company	0.01%	17,700	$70,000	—	31 Dec 2020	13F

Institutional Holders of Gritstone bio, Inc. - Common Stock, $0.0001 par value per share (GRTS) as of Q1 2021

As of 31 Mar 2021, Gritstone bio, Inc. - Common Stock, $0.0001 par value per share (GRTS) was held by 96 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 34,045,816 shares. The largest 10 holders included Versant Venture Management, LLC, EcoR1 Capital, LLC, FMR LLC, Redmile Group, LLC, BlackRock Inc., Palo Alto Investors LP, Avidity Partners Management LP, BVF INC/IL, MORGAN STANLEY, and VANGUARD GROUP INC. This page lists 96 institutional shareholders reporting positions in this security for the Q1 2021 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2021 vs Q4 2020 Across Filers

Q4 2020 holders

Q1 2021 holders

Holder diff

Investor	Q4 2020 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q4 2020 Value $	Q1 2021 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.