Shoulder Innovations Inc (SI): Hedge Fund Ownership & Smart Money Signals (Q1 2026)

Q: Is it too late to buy Shoulder Innovations Inc (SI) following the 2026 Q1 hedge fund 13F filings?

As of today, SI has moved nan% since the 2026 Q1 13F filing date (May 15, 2026), compared to -1.1% for the SPY sector ETF — an outperformance of nan%. Since the quarter end (March 31, 2026), SI gained nan% vs +12.4% for SPY. The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference.

Shoulder Innovations Inc (SI)

55 + Investors. Track Smart Money conviction in SI. See who's accumulating, reducing, or initiating positions.

Smart Money Signals — SI

Based on 56 hedge funds · latest filing: 2026 Q1 · updated quarterly

📈

Buying streak — 3 quarters in a row

last 6Q

For 3 consecutive quarters, more hedge funds added SI than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.

🏔️

At the ownership peak (100% of max)

100% of all-time peak

56 hedge funds hold SI right now — the highest count in 3.0 years. When ownership is this concentrated, any bad news can trigger a chain reaction: one big fund sells, others follow. This is a classic 'crowded trade' — high popularity doesn't equal safety.

🚀

Fast accumulation — +5500% more funds vs a year ago

fund count last 6Q

+55 new funds entered over the past year (+5500% YoY). That's a rapid rush of institutional money. Fast accumulation often signals a major thesis — but it also means the stock could fall quickly if that thesis breaks.

🟢

More buyers than sellers — 70% buying

39 buying17 selling

Last quarter: 39 funds were net buyers (16 opened a brand new position + 23 added to an existing one). Only 17 were sellers (8 trimmed + 9 sold completely). A clear majority buying is a strong confirmation signal.

➡️

Steady new buyers — ~16 new funds per quarter

new funds entering per quarter

Funds opening this position for the first time: 0 → 41 → 12 → 16. A stable flow of new institutional buyers suggests ongoing interest without signs of either acceleration or slowdown.

🔄

Mostly new holders — 96% entered in last year

■ 2% conviction (2yr+) ■ 2% medium ■ 96% new

Only 1 funds (2%) have held >2 years. The majority of current holders are relatively new to the position. New holders tend to sell faster when prices drop — a shallow conviction base that could amplify any sell-off.

📊

Peak discovery — momentum slowing

0 → 0 → 41 → 12 → 16 new funds/Q

New funds entering each quarter: 0 → 41 → 12 → 16. SI is well-known in the hedge fund world, but fresh entries are gradually declining. The explosive phase of institutional discovery is likely behind us.

🌱

Early stage — 96% of holders entered in last year

■ 4% veterans ■ 0% 1-2yr ■ 96% new

Of 56 current holders: 54 (96%) entered in the past year, only 2 (4%) are 2+ year veterans. This is an early-phase institutional idea — still being discovered. High upside potential if the thesis plays out, but thin conviction base.

🏆

Elite ownership — 65% AUM from top-100 funds

65% from top-100 AUM funds

21 of 56 holders are among the 100 largest funds by AUM, controlling 65% of total institutional value in SI. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.

7.4

out of 10

High Exit Risk

Exit risk score 7.4/10 — multiple crowding signals converge. Institutional ownership is at 100% of its all-time high — near peak crowding. Crowded trades can unwind fast — a single catalyst can trigger a cascade.

Methodology note: these Smart Money cards use consecutive 13F disclosure snapshots, not trade-by-trade execution data. "Buying", "selling", "new holders", and "trimmed" refer to quarter-over-quarter changes in reported holders, aggregate shares, or disclosed position values between filings. They are useful for ownership regime analysis and crowding, but they do not imply exact trade timing on the filing date.

Metric	All 13F Filers (2026 Q1)	Prior (2025 Q4)	Change
Funds Holding	55	49	12.24%
13F Shares	7M	7M	13.04%
Total Value	$104M	$95M	10.15%
New Positions	15	12	+3
Increased Positions	23	12	+11
Closed Positions	9	5	+4
Reduced Positions	8	16	-8
Total Calls	0	0	-
Total Puts	0	0	-
PUT/CALL Ratio	0.0	0.0	Bullish

Metric

All 13F Filers (2026 Q1)

Prior (2025 Q4)

Change

Funds Holding

12.24%

13F Shares

13.04%

Total Value

$104M

$95M

10.15%

New Positions

Increased Positions

+11

Closed Positions

Reduced Positions

-8

Total Calls

Total Puts

PUT/CALL Ratio

0.0

Bullish

Institutional Holders (2026 Q1)

55 + investors

Explore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in SI. Verified SEC 13F-HR filings.

QUARTER:

FILTER:All New Added To Reduced No Change | Overweight >5%

Top 25 SI holders by conviction (% of portfolio weight) — 2026 Q1 · Source: SEC Form 13F
#	Investor	% of Portfolio	Shares	Mkt Value
1	Sectoral Asset Management Inc	5.18%	430,407	$6.3M
2	Roubaix Capital, LLC	1.74%	257,121	$3.7M
3	CM Management, LLC	1.21%	100,000	$1.5M
4	Sio Capital Management, LLC	0.44%	210,641	$3.1M
5	KCM Capital Inc	0.08%	35,000	$509K
6	Readystate Asset Management LP	0.03%	39,431	$573K
7	Alyeska Investment Group, L.P.	0.01%	232,984	$3.4M
8	Walleye Capital LLC	0.01%	85,183	$1.2M
9	China Universal Asset Management Co., Ltd.	0.00%	3,600	$52K
10	Fmr LLC	0.00%	3,784,552	$55.0M
11	Blue Trust, Inc.	0.00%	15,719	$228K
12	Millennium Management LLC	0.00%	193,942	$2.8M
13	MetLife Investment Management, LLC	0.00%	6,224	$90K
14	Police & Firemen's Retirement System of New Jersey	0.00%	2,540	$37K
15	Tower Research Capital LLC (TRC)	0.00%	801	$12K
16	Ameritas Investment Partners, Inc.	0.00%	400	$6K
17	Vanguard Capital Management LLC	0.00%	413,480	$6.0M
18	BlackRock, Inc.	0.00%	556,052	$8.1M
19	Vanguard Fiduciary Trust Co	0.00%	37,622	$547K
20	Morgan Stanley	0.00%	157,578	$2.3M
21	Royal Bank of Canada	0.00%	53,860	$783K
22	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	0.00%	4,868	$71K
23	Steward Partners Investment Advisory, LLC	0.00%	1,000	$15K
24	Rhumbline Advisers	0.00%	4,744	$69K
25	Vanguard Portfolio Management LLC	0.00%	60,997	$886K

Investor	Ownership History	% of Portfolio	Prev %	Rank	Conviction	Avg Buy Price	13F Score™ 3Y / 7Y	Sell Timing	Shares	Mkt Value	Change	Change %	Source	Quarter	Filed

Frequently Asked Questions — Shoulder Innovations Inc (SI)

What does the Smart Money Trend signal show for SI?

Buying streak — 3 quarters in a row: For 3 consecutive quarters, more hedge funds added SI than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.

What is the institutional breadth score for SI?

More buyers than sellers — 70% buying: Last quarter: 39 funds were net buyers (16 opened a brand new position + 23 added to an existing one). Only 17 were sellers (8 trimmed + 9 sold completely). A clear majority buying is a strong confirmation signal.

What is the fund quality score for SI holders?

Elite ownership — 65% AUM from top-100 funds: 21 of 56 holders are among the 100 largest funds by AUM, controlling 65% of total institutional value in SI. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.

How long have hedge funds held SI?

Mostly new holders — 96% entered in last year: Only 1 funds (2%) have held >2 years. The majority of current holders are relatively new to the position. New holders tend to sell faster when prices drop — a shallow conviction base that could amplify any sell-off.

Is it too late to buy Shoulder Innovations Inc (SI) following the 2026 Q1 hedge fund 13F filings?

As of today, SI has moved nan% since the 2026 Q1 13F filing date (May 15, 2026), compared to -1.1% for the SPY sector ETF — an outperformance of nan%. Since the quarter end (March 31, 2026), SI has gained nan% vs +12.4% for SPY. The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference.

Where does this institutional ownership data come from?

All holdings data is sourced from SEC Form 13F filings, which institutional investment managers with over $100 million in assets are required to submit quarterly. Data is parsed directly from SEC EDGAR.

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Shoulder Innovations Inc (SI)

Smart Money Signals — SI

Buying streak — 3 quarters in a row

At the ownership peak (100% of max)

Fast accumulation — +5500% more funds vs a year ago

More buyers than sellers — 70% buying

Steady new buyers — ~16 new funds per quarter

Mostly new holders — 96% entered in last year

Peak discovery — momentum slowing

Early stage — 96% of holders entered in last year

Elite ownership — 65% AUM from top-100 funds

Institutional Sentiment Summary — SI

Hedge Fund Ownership: SI

Market Analysis: SI

Analyst Price Targets

Analyst Recommendations

Stock Performance

Company Profile: SI

Is It Too Late to Buy Shoulder Innovations Inc (SI) Based on Hedge Fund 13F Filings?

Hedge Fund Positioning: SI

Statistics: SI

Valuation Measures Data as of: --

Financial Highlights

Institutional Holders (2026 Q1)

Frequently Asked Questions — Shoulder Innovations Inc (SI)

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