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Disclosery

SI SHOULDER INNOVATIONS INC

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COMMON STOCK (common), issuer CIK 1699350

50 managers (50 13F filers) reported a position in SI shares at 2025-12-31, 6,629,858 shares in all. 13 filers opened a position and 5 filers sold out during the quarter.

Managers
50
13F filers
50
New
13
Added
12
Reduced
16
Sold out
5
Shares held by filers
6,629,858

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Tansey Casey Mdirector, 10% owner2026-10-05+733 A$19.6Form 4
Sidow Kevin K.director2026-10-05+892 A$19.6Form 4
Hykes Andrewdirector2026-10-05+669 A$19.6Form 4
BUCKMAN PAULdirector2026-10-05+1,275 A$19.6Form 4

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
FMR LLCin group FMR LLC3,848,795$55M<0.01%013F-HRTimelineGroup
SECTORAL ASSET MANAGEMENT INC492,435$7.04M5.64%+62,15313F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.311,353$4.45M<0.01%+33,98013F-HRTimelineGroup
TimesSquare Capital Management, LLC289,850$4.14M0.06%-92,51713F-HRTimeline
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.232,984$3.33M0.01%-218,55213F-HRTimelineGroup
Sio Capital Management, LLC227,971$3.26M0.54%-122,02913F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC220,430$3.15M<0.01%+74,16213F-HRTimelineGroup
Roubaix Capital, LLC158,816$2.27M0.97%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY150,794$2.16M<0.01%+35,96713F-HR/ATimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC110,303$1.58M<0.01%+16,25813F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC93,434$1.34M0.01%+21,61913F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC92,003$1.32M<0.01%new13F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.87,726$1.25M<0.01%-112,27413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP58,422$835K<0.01%+19,64113F-HRTimelineGroup
READYSTATE ASSET MANAGEMENT LP39,431$564K0.02%-1,31413F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP35,693$510K<0.01%-2,44313F-HRTimelineGroup
CM Management, LLC25,000$358K0.3%new13F-HRTimeline
GSA CAPITAL PARTNERS LLP22,750$325K0.03%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC18,780$269K<0.01%-31,22013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/18,778$269K<0.01%-6,89213F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC16,367$234K<0.01%new13F-HRTimelineGroup
Board of Trustees of The Leland Stanfor…13,521$193K0.04%013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC12,300$176K<0.01%new13F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co11,779$168K<0.01%013F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC7,457$107K<0.01%+72213F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC5,583$79.8K<0.01%+5,42713F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN5,250$75.1K<0.01%+2,09413F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\4,133$59.1K<0.01%-3,60413F-HRTimelineGroup
RHUMBLINE ADVISERS3,131$44.8K<0.01%-1,15513F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…2,301$32.9K<0.01%+8813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,916$27.4K<0.01%-213F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND1,800$25.7K<0.01%013F-HRTimeline
UBS Group AGin group UBS Group AG1,566$22.4K<0.01%-15,46113F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,475$21.1K<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS1,048$15K<0.01%-65213F-HRTimelineGroup
Steward Partners Investment Advisory, L…1,000$14.3K<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA754$11K<0.01%-31613F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…702$10K<0.01%-2,05313F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc462$6.61K<0.01%013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…408$5.83K<0.01%013F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…400$5.72K<0.01%013F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…293$4.19K<0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC151$2K<0.01%new13F-HRTimelineGroup
AMALGAMATED BANK150$2K<0.01%-413F-HRTimeline
Sterling Capital Management LLC126$1.8K<0.01%+1313F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/27$386<0.01%013F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…7$100<0.01%new13F-HRTimelineGroup
True Wealth Design, LLC1$15<0.01%new13F-HRTimeline
IFP Advisors, Inc1$14<0.01%new13F-HRTimeline
Essential Partners LLC1$14<0.01%new13F-HRTimeline

Events

  • Tansey Casey M acquired 733 SI shares on 2026-10-05, Form 4 filed 2026-10-06. 0001628280-26-065260

    Accepted , ingested

  • Sidow Kevin K. acquired 892 SI shares on 2026-10-05, Form 4 filed 2026-10-06. 0002072468-26-000002

    Accepted , ingested

  • Hykes Andrew acquired 669 SI shares on 2026-10-05, Form 4 filed 2026-10-06. 0001806431-26-000005

    Accepted , ingested

  • BUCKMAN PAUL acquired 1,275 SI shares on 2026-10-05, Form 4 filed 2026-10-06. 0001215243-26-000006

    Accepted , ingested