How many institutions held STRO - SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share in Q1 2019?

49 institutional investors reported STRO - SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share for Q1 2019. Use the holders table for investor-level position and value details.

SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share (STRO)

Q: What does CUSIP 869367102 represent in this 13F holders report?

CUSIP 869367102 is the security identifier for STRO - SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share used to aggregate holder disclosures.

CUSIP: 869367102

Q1 2019 13F Holders as of 31 Mar 2019

Type / Class: Equity / Common Stock, par value $0.001 per share
Shares outstanding: 16,611,035
Total 13F shares: 11,231,778
Share change: +367,236
Total reported value: $116,185,606
Price per share: $11.39
Number of holders: 49
Value change: +$4,727,906
Number of buys: 24
Number of sells: 13

Quarterly Holders Quick Answers

What is CUSIP 869367102?
CUSIP 869367102 identifies STRO - SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share in SEC institutional holdings data.

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Back to full security ownership history for the broader multi-quarter picture.
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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 2019
Previous quarter: Q4 2018

Recent filing periods for CUSIP 869367102:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of STRO - SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 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
SV Health Investors, LLC	13F	Company	11%	1,824,542	$16,457,000	—	31 Dec 2018	13F
CITADEL ADVISORS LLC	13F	Company	10%	1,729,043	$15,596,000	—	31 Dec 2018	13F
EVENTIDE ASSET MANAGEMENT, LLC	13F	Company	7.5%	1,244,895	$10,904,000	—	31 Dec 2018	13F
Samsara BioCapital, LLC	13F	Company	6.8%	1,125,576	$10,153,000	—	31 Dec 2018	13F
Camber Capital Management LP	13F	Company	3.6%	600,000	$5,412,000	—	31 Dec 2018	13F
BlackRock Finance, Inc.	13F	Company	2.5%	409,713	$3,696,000	—	31 Dec 2018	13F
SPHERA FUNDS MANAGEMENT LTD.	13F	Company	2.5%	407,889	$3,679,000	—	31 Dec 2018	13F
FMR LLC	13F	Company	2.4%	400,350	$3,611,000	—	31 Dec 2018	13F
DRIEHAUS CAPITAL MANAGEMENT LLC	13F	Company	2%	330,210	$2,978,000	—	31 Dec 2018	13F
Sio Capital Management, LLC	13F	Company	1.7%	281,914	$2,543,000	—	31 Dec 2018	13F
NEXTHERA CAPITAL LP	13F	Company	1.5%	249,496	$2,250,000	—	31 Dec 2018	13F
Tekla Capital Management LLC	13F	Company	1.4%	229,900	$2,074,000	—	31 Dec 2018	13F
JENNISON ASSOCIATES LLC	13F	Company	0.8%	133,047	$1,200,000	—	31 Dec 2018	13F
VANGUARD GROUP INC	13F	Company	0.75%	124,283	$1,121,000	—	31 Dec 2018	13F
INTERNATIONAL BIOTECHNOLOGY TRUST PLC	13F	Company	0.88%	146,653	$1,052,000	—	31 Dec 2018	13F
Pentwater Capital Management LP	13F	Company	0.61%	101,808	$918,000	—	31 Dec 2018	13F
JPMORGAN CHASE & CO	13F	Company	0.6%	99,451	$898,000	—	31 Dec 2018	13F
NORTHERN TRUST CORP	13F	Company	0.39%	64,316	$580,000	—	31 Dec 2018	13F
OXFORD ASSET MANAGEMENT LLP	13F	Company	0.33%	55,068	$497,000	—	31 Dec 2018	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.3%	50,601	$456,000	—	31 Dec 2018	13F
Alyeska Investment Group, L.P.	13F	Company	0.3%	50,000	$451,000	—	31 Dec 2018	13F
ACUTA CAPITAL PARTNERS, LLC	13F	Company	0.27%	45,500	$410,000	—	31 Dec 2018	13F
DAFNA Capital Management LLC	13F	Company	0.19%	31,494	$284,000	—	31 Dec 2018	13F
STATE STREET CORP	13F	Company	0.14%	23,287	$210,000	—	31 Dec 2018	13F
SG Americas Securities, LLC	13F	Company	0.11%	18,761	$169,000	—	31 Dec 2018	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.08%	13,110	$119,000	—	31 Dec 2018	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.07%	11,573	$104,000	—	31 Dec 2018	13F
MORGAN STANLEY	13F	Company	0.06%	9,797	$88,000	—	31 Dec 2018	13F
DEUTSCHE BANK AG\	13F	Company	0.06%	9,815	$87,000	—	31 Dec 2018	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	0.04%	6,000	$54,000	—	31 Dec 2018	13F
Tower Research Capital LLC (TRC)	13F	Company	0.03%	5,518	$49,000	—	31 Dec 2018	13F
AMERICAN INTERNATIONAL GROUP, INC.	13F	Company	0.03%	4,209	$38,000	—	31 Dec 2018	13F
UBS Group AG	13F	Company	0.02%	3,758	$34,000	—	31 Dec 2018	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.02%	3,300	$30,000	—	31 Dec 2018	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.02%	2,579	$23,000	—	31 Dec 2018	13F
CITIGROUP INC	13F	Company	0.01%	1,685	$16,000	—	31 Dec 2018	13F
STRS OHIO	13F	Company	0.01%	1,700	$15,000	—	31 Dec 2018	13F
BARCLAYS PLC	13F	Company	0.01%	999	$9,000	—	31 Dec 2018	13F
Legal & General Group Plc	13F	Company	0.01%	987	$9,000	—	31 Dec 2018	13F
VV Manager LLC	13F	Company	6%	995,579	$8,980	—	31 Dec 2018	13F
Ameritas Investment Partners, Inc.	13F	Company	0%	525	$5,000	—	31 Dec 2018	13F
Catalyst Capital Advisors LLC	13F	Company	0%	500	$5,000	—	31 Dec 2018	13F
Advisor Group, Inc.	13F	Company	0%	200	$2,000	—	31 Dec 2018	13F

Institutional Holders of SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share (STRO) as of Q1 2019

As of 31 Mar 2019, SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share (STRO) was held by 49 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 11,231,778 shares. The largest 10 holders included SV Health Investors, LLC, CITADEL ADVISORS LLC, EVENTIDE ASSET MANAGEMENT, LLC, Samsara BioCapital, LLC, VV Manager LLC, Tekla Capital Management LLC, Camber Capital Management LP, SPHERA FUNDS MANAGEMENT LTD., FMR LLC, and Sio Capital Management, LLC. This page lists 49 institutional shareholders reporting positions in this security for the Q1 2019 filing period.

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

Compare Q1 2019 vs Q4 2018 Across Filers

Q4 2018 holders

Q1 2019 holders

Holder diff

Investor	Q4 2018 Shares	Q1 2019 Shares	Share Diff	Share Chg %	Q4 2018 Value $	Q1 2019 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.