SHOULDER INNOVATIONS, INC. - Common Stock, $0.001 par value per share (SI)

CUSIP: 82537J108

Q3 2025 13F Holders as of 30 Sep 2025

Holder snapshot 5 signals
Share change
+7,315,334
SEC-reported price per share
$12.55
Number of holders
42
Value change
+$91,807,304
Number of buys
41
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
20,674,832

Security key

82537J108

Report period

Q3 2025

Institutions

42

Top holders

10

Ownership snapshot

Top reported holders of SI - SHOULDER INNOVATIONS, INC. - Common Stock, $0.001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Presidio Management Group...
Disclosed value leader
Presidio Management Group...
Comparable rows
3/5
Latest evidence
30 Sep 2025
13D/G 3/4/5 Lead comparable stake: 13% 2 rows are not safely comparable across share classes. 13D/G row: Presidio Management Group XII, L.L.C.

Quick read

Presidio Management Group XII, L.L.C. leads the comparable SEC ownership view at 13%.

3 of 5 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Presidio Management Group XII, L.L.C.'s linked filing trail.
Comparable ownership Top 3
Presidio Management Group XII, L.... 13%
LSV Associates II, LLC 9.3%
Arboretum Ventures VI, L.P. 5.8%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-5 of 5 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Presidio Management Group XII, L.L.C.
13D/G
Casey M. Tansey
13%
Reported 13D/G · 30 Sep 2025
$34,396,877
2,740,787 shares
$0 30 Sep 2025
LSV Associates II, LLC
13D/G 3/4/5
Former 10% Owner
9.3%
Reported 13D/G · 30 Sep 2025
$23,658,457
1,885,136 shares
$0 30 Sep 2025
Arboretum Ventures VI, L.P.
13D/G
5.8%
Reported 13D/G · 01 Aug 2025
—
1,163,891 shares
$0 01 Aug 2025
Geoffrey B. Pardo
3/4/5
Director, 10%+ Owner
—
denominator unverified
—
2,388,148 shares
— 01 Aug 2025
Michael A. Carusi
3/4/5
Director
—
denominator unverified
—
1,892,802 shares
— 01 Aug 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
42
Shares
7,317,034
Rows available
42
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2025 vs Q2 2026 Across Filers

Q2 2026 holders
72
Q3 2025 holders
42
Holder diff
-30
Investor Q2 2026 Shares Q3 2025 Shares Share Diff Share Chg % Q2 2026 value Q3 2025 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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