Company · Ownership research

SHOULDER INNOVATIONS, INC. SI

CIK 0001699350 · CUSIP 82537J108

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

This page lists the top 20 of 50 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	FMR LLC CIK 315066 · View history	$55.04M 3,848,795 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Feb 17, 2026	▾
02	Sectoral Asset Management Inc CIK 1274413 · View history	$7.04M 492,435 shares	5.64%	+62.15K(+14.40%)Added	SEC filing ↗ Feb 9, 2026	▾
03	BlackRock, Inc. CIK 2012383 · View history	$4.45M 311,353 shares	0.00%	+33.98K(+12.30%)Added	SEC filing ↗ Feb 12, 2026	▾
04	TimesSquare Capital Management, LLC CIK 1313816 · View history	$4.14M 289,850 shares	0.06%	-92.52K(-24.20%)Reduced	SEC filing ↗ Feb 6, 2026	▾
05	Alyeska Investment Group, L.P. CIK 1453072 · View history	$3.33M 232,984 shares	0.01%	-218.55K(-48.40%)Reduced	SEC filing ↗ Feb 13, 2026	▾
06	Sio Capital Management, LLC CIK 1482416 · View history	$3.26M 227,971 shares	0.54%	-122.03K(-34.90%)Reduced	SEC filing ↗ Feb 17, 2026	▾
07	VANGUARD GROUP INC CIK 102909 · View history	$3.15M 220,430 shares	0.00%	+74.16K(+50.70%)Added	SEC filing ↗ Jan 29, 2026	▾
08	Roubaix Capital, LLC CIK 1769700 · View history	$2.27M 158,816 shares	0.97%	+158.82KNew	SEC filing ↗ Feb 9, 2026	▾
09	MORGAN STANLEY CIK 895421 · Amended · View history	$2.16M 150,794 shares	0.00%	+35.97K(+31.30%)Added	SEC filing ↗ May 27, 2026	▾
10	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$1.58M 110,303 shares	0.00%	+16.26K(+17.30%)Added	SEC filing ↗ Feb 9, 2026	▾
11	Walleye Capital LLC CIK 1758720 · View history	$1.34M 93,434 shares	0.01%	+21.62K(+30.10%)Added	SEC filing ↗ Feb 13, 2026	▾
12	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$1.32M 92,003 shares	0.00%	+92.00KNew	SEC filing ↗ Feb 17, 2026	▾
13	FEDERATED HERMES, INC. CIK 1056288 · View history	$1.25M 87,726 shares	0.00%	-112.27K(-56.10%)Reduced	SEC filing ↗ Feb 12, 2026	▾
14	STATE STREET CORP CIK 93751 · View history	$835.43K 58,422 shares	0.00%	+19.64K(+50.60%)Added	SEC filing ↗ Feb 13, 2026	▾
15	READYSTATE ASSET MANAGEMENT LP CIK 1900923 · View history	$563.86K 39,431 shares	0.02%	-1.31K(-3.20%)Reduced	SEC filing ↗ Feb 17, 2026	▾
16	NORTHERN TRUST CORP CIK 73124 · View history	$510.41K 35,693 shares	0.00%	-2.44K(-6.40%)Reduced	SEC filing ↗ Feb 17, 2026	▾
17	CM Management, LLC CIK 1841857 · View history	$357.50K 25,000 shares	0.30%	+25.00KNew	SEC filing ↗ Feb 2, 2026	▾
18	GSA CAPITAL PARTNERS LLP CIK 1362033 · View history	$325.00K 22,750 shares	0.03%	+22.75KNew	SEC filing ↗ Feb 6, 2026	▾
19	CITADEL ADVISORS LLC CIK 1423053 · View history	$268.55K 18,780 shares	0.00%	-31.22K(-62.40%)Reduced	SEC filing ↗ Feb 17, 2026	▾
20	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$268.53K 18,778 shares	0.00%	-6.89K(-26.80%)Reduced	SEC filing ↗ Feb 17, 2026	▾

Showing 20 / 50 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

6,629,858

Not deduplicated across managers

Disclosed value

$94.81M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

SHOULDER INNOVATIONS, INC. · Q4 2025

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.