How many institutions held STRO - SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share in Q4 2018?

41 institutional investors reported STRO - SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share for Q4 2018. 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

Q4 2018 13F Holders as of 31 Dec 2018

Type / Class: Equity / Common Stock, par value $0.001 per share
Shares outstanding: 16,611,035
Total 13F shares: 9,707,399
Share change: -491,657
Total reported value: $87,234,000
Price per share: $9.02
Number of holders: 41
Value change: -$10,616,486
Number of buys: 28
Number of sells: 18

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.

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: Q1 2019
Previous quarter: Q3 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	$27,368,000	—	30 Sep 2018	13F
CITADEL ADVISORS LLC	13F	Company	11%	1,748,421	$26,226,000	—	30 Sep 2018	13F
EVENTIDE ASSET MANAGEMENT, LLC	13F	Company	7.5%	1,244,895	$18,134,000	—	30 Sep 2018	13F
Camber Capital Management LP	13F	Company	3.6%	600,000	$9,000,000	—	30 Sep 2018	13F
COWEN INC.	13F	Company	2.5%	417,317	$6,260,000	—	30 Sep 2018	13F
FMR LLC	13F	Company	2.4%	400,000	$6,000,000	—	30 Sep 2018	13F
DRIEHAUS CAPITAL MANAGEMENT LLC	13F	Company	2.2%	358,278	$5,374,000	—	30 Sep 2018	13F
BlackRock Finance, Inc.	13F	Company	2%	339,900	$5,098,000	—	30 Sep 2018	13F
SPHERA FUNDS MANAGEMENT LTD.	13F	Company	1.7%	275,000	$4,125,000	—	30 Sep 2018	13F
Tekla Capital Management LLC	13F	Company	1.5%	250,000	$3,750,000	—	30 Sep 2018	13F
Sio Capital Management, LLC	13F	Company	1.4%	232,539	$3,488,000	—	30 Sep 2018	13F
NEXTHERA CAPITAL LP	13F	Company	1.4%	231,613	$3,474,000	—	30 Sep 2018	13F
FARALLON CAPITAL MANAGEMENT LLC	13F	Company	0.9%	150,000	$2,250,000	—	30 Sep 2018	13F
JENNISON ASSOCIATES LLC	13F	Company	0.9%	150,000	$2,250,000	—	30 Sep 2018	13F
INTERNATIONAL BIOTECHNOLOGY TRUST PLC	13F	Company	0.88%	146,653	$1,686,000	—	30 Sep 2018	13F
AWM Investment Company, Inc.	13F	Company	0.67%	111,483	$1,672,000	—	30 Sep 2018	13F
JPMORGAN CHASE & CO	13F	Company	0.6%	100,050	$1,501,000	—	30 Sep 2018	13F
Alyeska Investment Group, L.P.	13F	Company	0.6%	100,000	$1,500,000	—	30 Sep 2018	13F
OXFORD ASSET MANAGEMENT LLP	13F	Company	0.48%	79,856	$1,201,000	—	30 Sep 2018	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.46%	76,662	$1,150,000	—	30 Sep 2018	13F
Pentwater Capital Management LP	13F	Company	0.42%	70,000	$1,050,000	—	30 Sep 2018	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	0.29%	47,645	$715,000	—	30 Sep 2018	13F
DC Investments Management, LLC	13F	Company	0.24%	39,474	$592,000	—	30 Sep 2018	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.17%	28,300	$425,000	—	30 Sep 2018	13F
DAFNA Capital Management LLC	13F	Company	0.17%	27,494	$412,000	—	30 Sep 2018	13F
Alpine Global Management, LLC	13F	Company	0.15%	25,000	$375,000	—	30 Sep 2018	13F
Walleye Trading LLC	13F	Company	0.13%	21,263	$319,000	—	30 Sep 2018	13F
Walleye Capital LLC	13F	Company	0.08%	13,395	$201,000	—	30 Sep 2018	13F
BlueCrest Capital Management Ltd	13F	Company	0.07%	11,000	$165,000	—	30 Sep 2018	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	0.04%	6,000	$90,000	—	30 Sep 2018	13F
UBS Group AG	13F	Company	0.01%	1,248	$19,000	—	30 Sep 2018	13F
Catalyst Capital Advisors LLC	13F	Company	0%	500	$8,000	—	30 Sep 2018	13F

Institutional Holders of SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share (STRO) as of Q4 2018

As of 31 Dec 2018, SUTRO BIOPHARMA, INC. - Common Stock, par value $0.001 per share (STRO) was held by 41 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 9,707,399 shares. The largest 10 holders included SV Health Investors, LLC, CITADEL ADVISORS LLC, EVENTIDE ASSET MANAGEMENT, LLC, Samsara BioCapital, LLC, Camber Capital Management LP, BlackRock Inc., SPHERA FUNDS MANAGEMENT LTD., FMR LLC, DRIEHAUS CAPITAL MANAGEMENT LLC, and Sio Capital Management, LLC. This page lists 41 institutional shareholders reporting positions in this security for the Q4 2018 filing period.

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

Compare Q4 2018 vs Q3 2018 Across Filers

Q3 2018 holders

Q4 2018 holders

Holder diff

Investor	Q3 2018 Shares	Q4 2018 Shares	Share Diff	Share Chg %	Q3 2018 Value $	Q4 2018 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.