STTK · Shattuck Labs, Inc. · Holdings

$6.01 +0.16 (+2.74%) At close · Sep 18

Russell 2000 member Rebalance outlook locked

Market Cap

$603.18M

100.36M

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 →

Quarter:

Holders: 103

Total Value: $586,851,395

Total Shares: 84,560,728

Showing 1–100 of 106 holdings by value · page 1 of 2

Institutional Ownership Trend

23 quarters

Holder Concentration

Across 103 13F filers · Δ vs Mar 31, 2026

Top Holder

15.9%

−1.7 pts

Top 5

48.1%

−7.8 pts

Top 10

69.8%

−4.0 pts

HHI

651

Broadly held−127

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +19

Institutional value: +62.8%

Shares held: +50.8%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega T. Rowe Price Investment Management, Inc.	+3,566,982	13,432,540
Large ADAGE CAPITAL PARTNERS GP, L.L.C.	+3,477,222	8,122,179
Mega BlackRock, Inc.	+3,425,004	3,935,810
Mid Redmile Group, LLC	+1,352,309	6,892,033
Small Prosight Management, LP	+953,438	5,957,877

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega AMERIPRISE FINANCIAL INC	−870,158	35,549
Mega MILLENNIUM MANAGEMENT LLC	−569,737	194,008
Mega JANE STREET GROUP, LLC	−368,838	47,100
Small SPHERA FUNDS MANAGEMENT LTD.	−194,325	86,461
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	−182,489	533,476

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid Frazier Life Sciences Management, L.P.	3,750,000	$26,025,000
Mid Deep Track Capital, LP	3,706,734	$25,724,733
Mega WELLINGTON MANAGEMENT GROUP LLP	1,767,938	$12,269,488
Mid Boxer Capital Management, LLC	1,000,000	$6,940,000
Mega VANGUARD PORTFOLIO MANAGEMENT LLC	946,985	$6,572,075

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Large MARSHALL WACE, LLP	581,471	$3,738,857
Small DIADEMA PARTNERS LP	293,664	$1,888,259
Large Hudson Bay Capital Management LP	228,817	$1,471,292
Mega Qube Research & Technologies Ltd	126,798	$815,311
Large HRT FINANCIAL LP	90,698	$583,188

Filter: New 38 Increased 36 Reduced 17 Sold out 19 Unchanged 12

Showing 100 of 106

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

T. Rowe Price Investment Management, Inc.

$93,221,827

15.89%

13,432,540

ADAGE CAPITAL PARTNERS GP, L.L.C.

$56,367,922

9.61%

8,122,179

Redmile Group, LLC

$47,830,709

8.15%

6,892,033

ORBIMED ADVISORS LLC

$43,764,521

7.46%

6,306,127

Prosight Management, LP

$41,347,666

7.05%

5,957,877

BlackRock, Inc.

$27,314,519

4.65%

3,935,810

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	64,496	$447,602	1.6%	Sole
BlackRock Investment Management, LLC	182,728	$1,268,132	4.6%	Sole
BLACKROCK ADVISORS LLC	133,774	$928,391	3.4%	Sole
BlackRock Fund Advisors	2,313,273	$16,054,114	58.8%	Sole
BlackRock Institutional Trust Company, N.A.	1,235,809	$8,576,514	31.4%	Sole
Aperio Group, LLC	5,730	$39,766	0.1%	Sole

Frazier Life Sciences Management, L.P.

$26,025,000

4.43%

3,750,000

NEXTBio Capital Management LP

$25,867,795

4.41%

3,727,348

Deep Track Capital, LP

$25,724,733

4.38%

3,706,734

VANGUARD CAPITAL MANAGEMENT LLC

$22,262,583

3.79%

3,207,865

PRICE T ROWE ASSOCIATES INC /MD/

$18,329,067

3.12%

2,641,076

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	50,365	$349,533	1.9%	Defined
Held directly	2,590,711	$17,979,534	98.1%	Sole

PINNACLE ASSOCIATES LTD

$12,987,807

2.21%

1,871,442

WELLINGTON MANAGEMENT GROUP LLP

$12,269,488

2.09%

1,767,938

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

Manager	Shares	Value (USD)	% of position	Discretion
Wellington Management Company LLP	905,219	$6,282,219	51.2%	Defined
Wellington Management Singapore Pte. Ltd.	91,408	$634,371	5.2%	Defined
Wellington Management International Ltd	47,864	$332,176	2.7%	Defined
Wellington Trust Company, NA joint	723,447	$5,020,722	40.9%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$10,998,206

1.87%

1,584,756

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	248,500	$1,724,590	15.7%	Defined
Held directly	1,336,256	$9,273,616	84.3%	Defined

CLARK ESTATES INC/NY

$9,925,358

1.69%

1,430,167

Aberdeen Group plc

$9,756,605

1.66%

1,405,851

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

Manager	Shares	Value (USD)	% of position	Discretion
abrdn Inc.	1,405,851	$9,756,605	100.0%	Defined

Point72 Asset Management, L.P.

$8,124,880

1.38%

1,170,732

683 Capital Management, LLC

$8,031,079

1.37%

1,157,216

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

Manager	Shares	Value (USD)	% of position	Discretion
683 Capital Partners, LP	1,157,216	$8,031,079	100.0%	Defined

STATE STREET CORP

$7,123,174

1.21%

1,026,394

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

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	1,026,394	$7,123,174	100.0%	Defined

Boxer Capital Management, LLC

$6,940,000

1.18%

1,000,000

VANGUARD PORTFOLIO MANAGEMENT LLC

$6,572,075

1.12%

946,985

RENAISSANCE TECHNOLOGIES LLC

$5,161,701

0.88%

743,761

GOLDMAN SACHS GROUP INC

$4,117,668

0.70%

593,324

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	495,748	$3,440,491	83.6%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	97,576	$677,177	16.4%	Defined

TD Asset Management Inc

$3,878,599

0.66%

558,876

NORTHERN TRUST CORP

$3,610,992

0.62%

520,316

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	510,700	$3,544,257	98.2%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	9,616	$66,735	1.8%	Other

VANGUARD FIDUCIARY TRUST CO

$3,216,100

0.55%

463,415

S&G Foundation

$3,024,098

0.52%

435,749

ALGERT GLOBAL LLC

$2,923,037

0.50%

421,187

FMR LLC

$2,724,616

0.46%

392,596

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	392,596	$2,724,616	100.0%	Defined

DEUTSCHE BANK AG\

$2,474,303

0.42%

356,528

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

Manager	Shares	Value (USD)	% of position	Discretion
DWS Investment GmbH	295,656	$2,051,852	82.9%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC	1,023	$7,099	0.3%	Defined
DWS Investments UK Ltd	59,849	$415,352	16.8%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$2,131,968

0.36%

307,200

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	307,200	$2,131,968	100.0%	Other

Connor, Clark & Lunn Investment Management Ltd.

$1,988,233

0.34%

286,489

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

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	286,198	$1,986,214	99.9%	Sole
Held directly	291	$2,019	0.1%	Sole

Hillsdale Investment Management Inc.

$1,828,120

0.31%

263,418

ACADIAN ASSET MANAGEMENT LLC

$1,685,948

0.29%

242,932

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

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	242,932	$1,685,948	100.0%	Defined

MANUFACTURERS LIFE INSURANCE COMPANY, THE

$1,575,872

0.27%

227,071

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

Manager	Shares	Value (USD)	% of position	Discretion
MANULIFE FINANCIAL CORP joint	227,071	$1,575,872	100.0%	Defined

Bank of New York Mellon Corp

$1,516,424

0.26%

218,505

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

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	37,744	$261,943	17.3%	Defined
The Bank of New York Mellon	95,981	$666,108	43.9%	Defined
Newton Investment Management North America, LLC	84,780	$588,373	38.8%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,395,634

0.24%

201,100

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	201,100	$1,395,634	100.0%	Other

Caption Management, LLC

$1,388,000

0.24%

200,000

MILLENNIUM MANAGEMENT LLC

$1,346,415

0.23%

194,008

West Tower Group, LLC

$1,329,877

0.23%

191,625

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$1,317,899

0.22%

189,899

TWO SIGMA INVESTMENTS, LP

$1,290,472

0.22%

185,947

MORGAN STANLEY

$1,261,078

0.21%

181,712

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	3	$20	0.0%	Defined
MORGAN STANLEY & CO. LLC	16,629	$115,405	9.2%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	19,398	$134,622	10.7%	Defined
MORGAN STANLEY SMITH BARNEY LLC	68	$471	0.0%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	145,614	$1,010,560	80.1%	Defined

DIMENSIONAL FUND ADVISORS LP

$1,080,153

0.18%

155,642

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

Manager	Shares	Value (USD)	% of position	Discretion
DFA Australia Ltd.	17,084	$118,562	11.0%	Defined
Dimensional Ireland Ltd	14,087	$97,763	9.1%	Defined
Held directly	124,471	$863,828	80.0%	Sole

XTX Topco Ltd

$650,652

0.11%

93,754

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	93,754	$650,652	100.0%	Defined

Jump Financial, LLC

$616,272

0.11%

88,800

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

Manager	Shares	Value (USD)	% of position	Discretion
Leap GP LLC joint	88,800	$616,272	100.0%	Defined

SPHERA FUNDS MANAGEMENT LTD.

$600,039

0.10%

86,461

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

Manager	Shares	Value (USD)	% of position	Discretion
Sphera Global Healthcare Management LP joint	86,461	$600,039	100.0%	Defined

LBJ Family Wealth Advisors, Ltd.

$570,308

0.10%

82,177

Nuveen, LLC

$565,068

0.10%

81,422

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

Manager	Shares	Value (USD)	% of position	Discretion
TEACHERS ADVISORS, LLC joint	81,422	$565,068	100.0%	Defined

Pathstone Holdings, LLC

$513,254

0.09%

73,956

Squarepoint Ops LLC

$496,536

0.08%

71,547

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

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	71,547	$496,536	100.0%	Defined

RHUMBLINE ADVISERS

$496,126

0.08%

71,488

Coastline Trust Co

$485,800

0.08%

70,000

GSA CAPITAL PARTNERS LLP

$474,494

0.08%

68,371

Invesco Ltd.

$452,833

0.08%

65,250

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

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	8,687	$60,287	13.3%	Defined
Invesco Trust Co joint	24,462	$169,766	37.5%	Defined
Invesco Capital Management LLC	32,101	$222,780	49.2%	Defined

UBS Group AG

$397,238

0.07%

57,239

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	57,239	$397,238	100.0%	Defined

Verdad Advisers, LP

$397,183

0.07%

57,231

WELLS FARGO & COMPANY/MN

$384,246

0.07%

55,367

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

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	55,367	$384,246	100.0%	Defined

BLAIR WILLIAM & CO/IL

$378,028

0.06%

54,471

Cerity Partners LLC

$366,050

0.06%

52,745

Davis Asset Management, L.P.

$335,035

0.06%

48,276

BANK OF AMERICA CORP /DE/

$318,670

0.05%

45,918

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	45,918	$318,670	100.0%	Defined

HSBC HOLDINGS PLC

$294,568

0.05%

42,445

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

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	42,445	$294,568	100.0%	Defined

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$293,562

0.05%

42,300

MetLife Investment Management, LLC

$259,694

0.04%

37,420

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

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	37,420	$259,694	100.0%	Defined

AMERIPRISE FINANCIAL INC

$246,710

0.04%

35,549

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

Manager	Shares	Value (USD)	% of position	Discretion
Columbia Management Investment Advisers, LLC	31,549	$218,950	88.7%	Defined
Ameriprise Financial Services, LLC	4,000	$27,760	11.3%	Defined

ALLIANCEBERNSTEIN L.P.

$230,338

0.04%

33,190

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

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	33,190	$230,338	100.0%	Defined

JANE STREET GROUP, LLC

$226,244

0.04%

32,600

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	32,600	$226,244	100.0%	Defined

CITADEL ADVISORS LLC

$208,894

0.04%

30,100

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	30,100	$208,894	100.0%	Defined

MIDDLETON & CO INC/MA

$208,200

0.04%

30,000

CITIGROUP INC

$199,670

0.03%

28,771

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

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	28,771	$199,670	100.0%	Defined

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$195,201

0.03%

28,127

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

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	28,127	$195,201	100.0%	Defined

Russell Investments Group, Ltd.

$194,750

0.03%

28,062

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	4,897	$33,985	17.5%	Defined
Russell Investments Capital, LLC	23,165	$160,765	82.5%	Defined

CHOREO, LLC

$189,121

0.03%

27,251

EntryPoint Capital, LLC

$183,125

0.03%

26,387

RITHOLTZ WEALTH MANAGEMENT

$180,440

0.03%

26,000

JPMORGAN CHASE & CO

$178,135

0.03%

25,668

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.	25,430	$176,484	99.1%	Defined
J.P. Morgan Investment Management Inc.	56	$388	0.2%	Defined
J.P. Morgan Securities plc	182	$1,263	0.7%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$174,721

0.03%

25,176

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	25,176	$174,721	100.0%	Other

Mallini Complete Financial Planning LLC

$157,066

0.03%

22,632

State of Wyoming

$151,187

0.03%

21,785

MGO ONE SEVEN LLC

$138,800

0.02%

20,000

Vanguard Global Advisers, LLC

$137,654

0.02%

19,835

Police & Firemen's Retirement System of New Jersey

$125,558

0.02%

18,092

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

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Capital	18,092	$125,558	100.0%	Defined

BARCLAYS PLC

$120,575

0.02%

17,374

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

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	10,959	$76,055	63.1%	Defined
BARCLAYS CAPITAL INC.	6,415	$44,520	36.9%	Defined

BENJAMIN EDWARDS INC

$119,992

0.02%

17,290

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

Manager	Shares	Value (USD)	% of position	Discretion
BENJAMIN F. EDWARDS & COMPANY, INC.	17,290	$119,992	100.0%	Defined

China Universal Asset Management Co., Ltd.

$101,608

0.02%

14,641

JANE STREET GROUP, LLC

$100,630

0.02%

14,500

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	14,500	$100,630	100.0%	Defined

NEW YORK STATE COMMON RETIREMENT FUND

$98,548

0.02%

14,200

Creative Planning

$85,604

0.01%

12,335

FOX RUN MANAGEMENT, L.L.C.

$83,522

0.01%

12,035

VOYA INVESTMENT MANAGEMENT LLC

$81,739

0.01%

11,778

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

Manager	Shares	Value (USD)	% of position	Discretion
Voya Investment Management Co. LLC joint	11,778	$81,739	100.0%	Defined

INTECH INVESTMENT MANAGEMENT LLC

$73,522

0.01%

10,594

BNP PARIBAS ARBITRAGE, SA

$63,965

0.01%

9,217

Legal & General Group Plc

$41,334

0.01%

5,956

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

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management America Inc	5,956	$41,334	100.0%	Defined

Ameritas Investment Partners, Inc.

$38,634

0.01%

5,567

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

Manager	Shares	Value (USD)	% of position	Discretion
EATON VANCE MANAGEMENT	5,567	$38,634	100.0%	Other

SIMPLEX TRADING, LLC

$37,593

0.01%

5,417

Tower Research Capital LLC (TRC)

$35,623

0.01%

5,133

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

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	5,133	$35,623	100.0%	Defined

ROYAL BANK OF CANADA

$29,113

0.00%

4,195

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

Manager	Shares	Value (USD)	% of position	Discretion
RBC CMA LTD.	1,995	$13,845	47.6%	Defined
RBC Capital Markets, LLC	2,200	$15,268	52.4%	Defined

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

$5,864

0.00%

845

Larson Financial Group LLC

$3,470

0.00%

500

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