OM · Outset Medical, Inc. · Holdings

$4.25 +0.29 (+7.32%) At close · Oct 5

Market Cap

$57.33M

18.80M

Volume · Oct 5 203.1K Avg daily vol (3M) 156.22K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

Quarter:

Holders: 92

Total Value: $60,327,465

Total Shares: 13,964,882

Institutional Ownership Trend

24 quarters

Holder Concentration

Across 92 13F filers · Δ vs Mar 31, 2026

Top Holder

19.6%

+2.1 pts

Top 5

56.4%

+7.2 pts

Top 10

73.9%

+4.1 pts

HHI

921

Broadly held+207

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -8

Institutional value: +0.6%

Shares held: -10.6%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Small BML Capital Management, LLC	+617,500	2,519,701
Mega AQR CAPITAL MANAGEMENT LLC	+190,676	998,961
Mega GOLDMAN SACHS GROUP INC	+80,100	173,460
Mid GMT Capital Corp	+55,687	98,108
Mega BARCLAYS PLC	+31,979	42,771

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega BlackRock, Inc.	−845,008	418,211
Mega BANK OF AMERICA CORP /DE/	−283,550	665,847
Mega CITADEL ADVISORS LLC	−269,621	83,579
Mega STATE STREET CORP	−253,788	81,206
Mega GEODE CAPITAL MANAGEMENT, LLC	−216,721	204,652

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Small Peapod Lane Capital LLC	331,951	$1,434,028
Mega MARSHALL WACE, LLP	211,993	$915,809
Mega MILLENNIUM MANAGEMENT LLC	181,794	$785,350
Small Marquette Asset Management, LLC	48,981	$211,597
Small Clayton Partners LLC	37,527	$162,116

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Large Woodline Partners LP	292,437	$1,122,958
Small Birchview Capital, LP	98,882	$379,706
Mega VANGUARD PORTFOLIO MANAGEMENT LLC	98,610	$378,662
Mega Nuveen, LLC	65,585	$251,845
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC	41,162	$158,062

Filter: New 18 Increased 30 Reduced 30 Sold out 26 Unchanged 14

Showing 95 of 95

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

FMR LLC

$11,849,271

19.64%

2,742,887

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	2,642,887	$11,417,271	96.4%	Defined
FIAM LLC	100,000	$432,000	3.6%	Defined

BML Capital Management, LLC

$10,885,108

18.04%

2,519,701

AQR CAPITAL MANAGEMENT LLC

$4,315,507

7.15%

998,961

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Petros Family Wealth, LLC	67	$289	0.0%	Other
KEB ASSET MANAGEMENT, LLC	96	$414	0.0%	Other
RF&L WEALTH MANAGEMENT, LLC	11	$47	0.0%	Other
Compound Planning, Inc.	4	$17	0.0%	Other
Arax Advisory Partners	15,111	$65,279	1.5%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	2,978	$12,864	0.3%	Other
Stokes Family Office, LLC	1,156	$4,993	0.1%	Other
Held directly	979,538	$4,231,604	98.1%	Defined

PERCEPTIVE ADVISORS LLC

$3,599,998

5.97%

833,333

VANGUARD CAPITAL MANAGEMENT LLC

$3,370,178

5.59%

780,134

BANK OF AMERICA CORP /DE/

$2,876,458

4.77%

665,847

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	21,829	$94,301	3.3%	Defined
BOFA SECURITIES, INC.	644,018	$2,782,157	96.7%	Defined

PFM Health Sciences, LP

$2,514,767

4.17%

582,122

Ensign Peak Advisors, Inc

$1,876,353

3.11%

434,341

BlackRock, Inc.

$1,806,670

2.99%

418,211

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	41,675	$180,036	10.0%	Sole
BlackRock Investment Management, LLC	6,385	$27,583	1.5%	Sole
BlackRock Fund Advisors	95,635	$413,143	22.9%	Sole
BlackRock Institutional Trust Company, N.A.	274,442	$1,185,589	65.6%	Sole
Aperio Group, LLC	74	$319	0.0%	Sole

Assenagon Asset Management S.A.

$1,466,372

2.43%

339,438

Peapod Lane Capital LLC

$1,434,028

2.38%

331,951

MARSHALL WACE, LLP

$915,809

1.52%

211,993

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	211,993	$915,809	100.0%	Other

GEODE CAPITAL MANAGEMENT, LLC

$884,095

1.47%

204,652

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	40,993	$177,089	20.0%	Defined
Held directly	163,659	$707,006	80.0%	Defined

Stratos Wealth Partners, LTD.

$866,358

1.44%

200,546

UBS Group AG

$822,047

1.36%

190,289

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	29	$125	0.0%	Defined
UBS AG	190,240	$821,836	100.0%	Defined
UBS Securities LLC	20	$86	0.0%	Defined

MORGAN STANLEY

$786,164

1.30%

181,983

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	1,501	$6,484	0.8%	Defined
MORGAN STANLEY & CO. LLC	1,039	$4,488	0.6%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	72,043	$311,225	39.6%	Defined
MORGAN STANLEY SMITH BARNEY LLC	197	$851	0.1%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	107,203	$463,116	58.9%	Defined

MILLENNIUM MANAGEMENT LLC

$785,350

1.30%

181,794

GOLDMAN SACHS GROUP INC

$749,346

1.24%

173,460

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	136,049	$587,731	78.4%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	37,411	$161,615	21.6%	Defined

JANE STREET GROUP, LLC

$601,330

1.00%

139,197

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	42,552	$183,824	30.6%	Defined
Jane Street Global Trading, LLC	96,645	$417,506	69.4%	Defined

XTX Topco Ltd

$538,660

0.89%

124,690

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	124,690	$538,660	100.0%	Defined

Catalio Capital Management, LP

$510,965

0.85%

118,279

VANGUARD FIDUCIARY TRUST CO

$496,419

0.82%

114,912

GMT Capital Corp

$423,826

0.70%

98,108

DIMENSIONAL FUND ADVISORS LP

$391,814

0.65%

90,698

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	1,260	$5,443	1.4%	Defined
Dimensional Ireland Ltd	8,307	$35,886	9.2%	Defined
Held directly	81,131	$350,485	89.5%	Sole

PURA VIDA INVESTMENTS, LLC

$359,998

0.60%

83,333

STATE STREET CORP

$350,809

0.58%

81,206

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SSGA FUNDS MANAGEMENT, INC. joint	81,206	$350,809	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$350,019

0.58%

81,023

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	81,023	$350,019	100.0%	Other

C WorldWide Group Holding A/S

$287,997

0.48%

66,666

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 2	66,666	$287,997	100.0%	Defined

CITADEL ADVISORS LLC

$263,520

0.44%

61,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	61,000	$263,520	100.0%	Defined

IEQ CAPITAL, LLC

$225,188

0.37%

52,127

Marquette Asset Management, LLC

$211,597

0.35%

48,981

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$205,200

0.34%

47,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	47,500	$205,200	100.0%	Other

NATIONAL BANK OF CANADA /FI/

$197,087

0.33%

45,622

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
National Bank Financial Inc.	45,622	$197,087	100.0%	Defined

NORTHERN TRUST CORP

$188,239

0.31%

43,574

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	43,574	$188,239	100.0%	Defined

RENAISSANCE TECHNOLOGIES LLC

$187,608

0.31%

43,428

BARCLAYS PLC

$184,769

0.31%

42,771

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	41,603	$179,724	97.3%	Defined
BARCLAYS CAPITAL INC.	1,168	$5,045	2.7%	Defined

Centiva Capital, LP

$171,871

0.28%

39,785

Clayton Partners LLC

$162,116

0.27%

37,527

PRICE T ROWE ASSOCIATES INC /MD/

$153,887

0.26%

35,622

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	35,622	$153,887	100.0%	Defined

ACADIAN ASSET MANAGEMENT LLC

$151,416

0.25%

35,050

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	35,050	$151,416	100.0%	Defined

Jain Global LLC

$142,970

0.24%

33,095

HRT FINANCIAL LP

$142,063

0.24%

32,885

Mariner, LLC

$140,024

0.23%

32,413

BNP PARIBAS ARBITRAGE, SA

$123,634

0.20%

28,619

Bank of New York Mellon Corp

$120,521

0.20%

27,899

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
The Bank of New York Mellon	2,021	$8,730	7.2%	Defined
BNY Mellon, NA joint	8,503	$36,732	30.5%	Defined
Newton Investment Management North America, LLC	17,374	$75,055	62.3%	Defined
Held directly	1	$4	0.0%	Defined

AMERICAN CENTURY COMPANIES INC

$116,393

0.19%

26,943

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	26,943	$116,393	100.0%	Defined

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$108,000

0.18%

25,000

BANK OF MONTREAL /CAN/

$106,608

0.18%

24,678

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BMO Family Office, LLC	18,012	$77,811	73.0%	Defined
BMO NESBITT BURNS INC.	6,666	$28,797	27.0%	Defined

Squarepoint Ops LLC

$98,072

0.16%

22,702

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	22,702	$98,072	100.0%	Defined

Catalyst Funds Management Pty Ltd

$82,948

0.14%

19,201

Cerity Partners LLC

$82,118

0.14%

19,009

R Squared Ltd

$73,431

0.12%

16,998

Engineers Gate Manager LP

$73,167

0.12%

16,937

MERCER GLOBAL ADVISORS INC /ADV

$71,128

0.12%

16,465

Arax Advisory Partners

$67,314

0.11%

15,582

WEALTH ENHANCEMENT ADVISORY SERVICES, LLC

$56,337

0.09%

13,041

Creative Planning

$50,954

0.08%

11,795

CITADEL ADVISORS LLC

$49,248

0.08%

11,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	11,400	$49,248	100.0%	Defined

CITADEL ADVISORS LLC

$48,293

0.08%

11,179

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	569	$2,458	5.1%	Defined
Held directly	10,610	$45,835	94.9%	Defined

RHUMBLINE ADVISERS

$35,972

0.06%

8,327

Vanguard Global Advisers, LLC

$34,136

0.06%

7,902

Tower Research Capital LLC (TRC)

$20,165

0.03%

4,668

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Tower Research Capital Investments LLC	1,898	$8,199	40.7%	Other
Latour Trading LLC (Latour)	2,770	$11,966	59.3%	Defined

Russell Investments Group, Ltd.

$18,662

0.03%

4,320

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	4,320	$18,662	100.0%	Defined

HUNTINGTON NATIONAL BANK

$7,071

0.01%

1,637

JPMORGAN CHASE & CO

$6,449

0.01%

1,493

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	266	$1,149	17.8%	Defined
J.P. Morgan Investment Management Inc.	941	$4,065	63.0%	Defined
J.P. Morgan Securities plc	286	$1,235	19.2%	Defined

PNC FINANCIAL SERVICES GROUP, INC.

$6,095

0.01%

1,411

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	1,411	$6,095	100.0%	Defined

EverSource Wealth Advisors, LLC

$6,021

0.01%

1,394

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BMSS Wesson Wealth Solutions, LLC	104	$449	7.5%	Sole
Held directly	1,290	$5,572	92.5%	Sole

Allworth Financial LP

$4,838

0.01%

1,120

FEDERATED HERMES, INC.

$2,808

0.00%

650

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
FEDERATED MDTA LLC	650	$2,808	100.0%	Defined

ROYAL BANK OF CANADA

$2,539

0.00%

588

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC CMA LTD.	98	$423	16.7%	Defined
RBC Capital Markets, LLC	441	$1,905	75.0%	Defined
RBC Dominion Securities Inc.	23	$99	3.9%	Defined
Held directly	26	$112	4.4%	Sole

Essential Partners LLC

$1,745

0.00%

404

GAMMA Investing LLC

$1,451

0.00%

336

MassMutual Private Wealth & Trust, FSB

$1,118

0.00%

259

ROTHSCHILD INVESTMENT LLC

$1,032

0.00%

239

Farther Finance Advisors, LLC

$773

0.00%

179

Fortitude Family Office, LLC

$760

0.00%

176

Avion Wealth

$678

0.00%

157

OSAIC HOLDINGS, INC.

$591

0.00%

137

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	137	$591	100.0%	Defined

Bogart Wealth, LLC

$561

0.00%

130

NISA INVESTMENT ADVISORS, LLC

$496

0.00%

115

IFP Advisors, Inc

$423

0.00%

Basecamp Wealth Advisors LLC

$319

0.00%

SJS Investment Consulting Inc.

$263

0.00%

True Wealth Design, LLC

$241

0.00%

Clearstead Advisors, LLC

$203

0.00%

Wealth Enhancement Trust Services, Inc.

$185

0.00%

Fourth Dimension Wealth, LLC

$133

0.00%

Transamerica Financial Advisors, LLC

$108

0.00%

ADIRONDACK TRUST CO

$77

0.00%

Ancora Advisors LLC

$34

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ANCORA PRIVATE WEALTH ADVISORS, LLC	8	$34	100.0%	Sole

Caitong International Asset Management Co., Ltd

$30

0.00%

JPL Wealth Management, LLC

$21

0.00%

SBI Securities Co., Ltd.

$21

0.00%

US BANCORP \DE\

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
US BANK NATIONAL ASSOCIATION	2	$8	100.0%	Defined

SIT INVESTMENT ASSOCIATES INC

0.00%

177

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SIT FIXED INCOME ADVISORS II LLC /ADV	177	$1	100.0%	Sole

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