SHOULDER INNOVATIONS, INC. (SI) Insider Trading

Over the last 3 months, SI insiders made 0 open-market buys and 16 sales, a net sale of -$5.3M (SEC Form 4). Over the last 6 months, 23 institutions increased and 10 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
16
Net (3m)
-$5.3M
Insider trades by month Buys Sells
Apr
Jul
Dec
Mar
Jun
Aug
Context3-month price +48.4%Institutions reducing (13F)
DateInsiderTypeSharesPrice
Aug 28, 2026Gilde Healthcare Holding B.V.10 percent ownerSell1,196$22.60
Aug 24, 2026Gilde Healthcare Holding B.V.10 percent ownerSell681$22.62
Aug 24, 2026Gilde Healthcare Holding B.V.10 percent ownerSell3,900$22.60
Aug 24, 2026Gilde Healthcare Holding B.V.10 percent ownerSell20,516$22.61
Aug 18, 2026Ahearn Matthew Fraserdirector, officer: Chief Operating OfficerSell8,314$20.10
Aug 18, 2026Ahearn Matthew Fraserdirector, officer: Chief Operating OfficerSell1,600$21.38
Aug 18, 2026Ahearn Matthew Fraserdirector, officer: Chief Operating OfficerSell12,586$20.94
Aug 7, 2026Gilde Healthcare Holding B.V.10 percent ownerSell7,338$22.64
Aug 7, 2026Gilde Healthcare Holding B.V.10 percent ownerSell2,095$22.60
Aug 5, 2026Gilde Healthcare Holding B.V.10 percent ownerSell99,812$22.77
Aug 5, 2026Gilde Healthcare Holding B.V.10 percent ownerSell10,751$22.71
Aug 3, 2026Gilde Healthcare Holding B.V.10 percent ownerSell28,245$23.36
Aug 3, 2026Gilde Healthcare Holding B.V.10 percent ownerSell20,034$22.73
Jun 29, 2026BUCKMAN PAULdirectorGrant5,046
Jun 29, 2026Buchholz RicharddirectorGrant5,046
Jun 29, 2026Hykes AndrewdirectorGrant5,046
Jun 29, 2026Sidow Kevin K.directorGrant5,046
Jun 29, 2026Tansey Casey Mdirector, 10 percent owner: Grant5,046
Jun 16, 2026Ahearn Matthew Fraserdirector, officer: Chief Operating OfficerSell15,856$18.68
Jun 16, 2026Ahearn Matthew Fraserdirector, officer: Chief Operating OfficerSell1,644$18.20
Jun 16, 2026Ahearn Matthew Fraserdirector, officer: Chief Operating OfficerSell2,500$19.26
Apr 30, 2026Ball Robert Josephdirector, officer: CEO & Executive ChairmanOption10,000$2.48
Apr 21, 2026Ahearn Matthew Fraserdirector, officer: Chief Operating OfficerOption7,421$2.48
Apr 21, 2026Ahearn Matthew Fraserdirector, officer: Chief Operating OfficerOption14,243$2.86
Mar 17, 2026Ball Robert Josephdirector, officer: CEO & Executive ChairmanBuy2,200$15.18
Mar 17, 2026BUCKMAN PAULdirectorOption26,205$2.10
Mar 17, 2026BUCKMAN PAULdirectorTax3,292$14.62
Mar 17, 2026Points Jeffrey S.officer: Chief Financial OfficerOption13,264$2.48
Mar 17, 2026Buchholz RicharddirectorBuy1,000$14.84
Mar 17, 2026Points Jeffrey S.officer: Chief Financial OfficerBuy2,000$15.00

Source: SI SEC Form 4 filings, latest Aug 28, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their SI positions over the last 6 months (SEC Form 13F).

Increased
23
New positions
16
Reduced
10
Sold out
57
Largest moves
InstitutionActionSharesFiled
FMR LLCReduced3.8MMay 15, 2026
BLACKROCK, INC.Increased556KMay 13, 2026
SECTORAL ASSET MANAGEMENT INCReduced430KMay 15, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position413KMay 15, 2026
TIMESSQUARE CAPITAL MANAGEMENT, LLCIncreased323KMay 7, 2026
ROUBAIX CAPITAL, LLCIncreased257KMay 6, 2026
ALYESKA INVESTMENT GROUP, L.P.Unchanged233KMay 15, 2026
SIO CAPITAL MANAGEMENT, LLCReduced211KMay 14, 2026
MILLENNIUM MANAGEMENT LLCIncreased194KMay 15, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased184KMay 15, 2026
MORGAN STANLEYReduced158KMay 15, 2026
JPMORGAN CHASE & COIncreased131KMay 13, 2026
CM MANAGEMENT, LLCIncreased100KMay 8, 2026
STATE STREET CORPIncreased93KMay 15, 2026
WALLEYE CAPITAL LLCReduced85KMay 13, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.