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Disclosery

SI SHOULDER INNOVATIONS INC

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COMMON STOCK (common), issuer CIK 1699350

55 managers (58 13F filers) reported a position in SI shares at 2026-03-31, 7,626,438 shares in all. 12 filers opened a position and 7 filers sold out during the quarter.

Managers
55
13F filers
58
New
12
Added
24
Reduced
9
Sold out
7
Shares held by filers
7,626,438

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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 LLC3,784,552$55M<0.01%-64,24313F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.556,052$8.08M<0.01%+244,69913F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding514,865$7.48MnewTimeline
SECTORAL ASSET MANAGEMENT INC430,407$6.25M5.18%-62,02813F-HRTimeline
TimesSquare Capital Management, LLC322,764$4.69M0.08%+32,91413F-HRTimeline
Roubaix Capital, LLC257,121$3.74M1.74%+98,30513F-HRTimeline
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.232,984$3.39M0.01%013F-HRTimelineGroup
Sio Capital Management, LLC210,641$3.06M0.44%-17,33013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC193,942$2.82M<0.01%+101,93913F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC183,679$2.67M<0.01%+73,37613F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY157,578$2.29M<0.01%+6,78413F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO130,711$1.85M<0.01%+128,79513F-HR/ATimelineGroup
CM Management, LLC100,000$1.45M1.21%+75,00013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP93,245$1.35M<0.01%+34,82313F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC85,183$1.24M0.01%-8,25113F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP64,067$931K<0.01%+28,37413F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA53,883$783K<0.01%+53,12913F-HRTimelineGroup
READYSTATE ASSET MANAGEMENT LP39,431$573K0.03%013F-HRTimeline
KCM Capital Inc35,000$509K0.09%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/26,983$392K<0.01%+8,20513F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co22,952$333K<0.01%+11,17313F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp17,366$252K<0.01%new13F-HRTimelineGroup
Blue Trust, Inc.15,719$228K<0.01%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC14,016$204K<0.01%new13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC13,524$197K<0.01%-5,25613F-HRTimelineGroup
Nuveen, LLCin group TIAA12,177$177K<0.01%new13F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\9,331$136K<0.01%+5,19813F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…6,224$90.4K<0.01%new13F-HRTimelineGroup
UBS Group AGin group UBS Group AG5,038$73.2K<0.01%+3,47213F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…4,868$70.7K<0.01%+2,56713F-HRTimelineGroup
RHUMBLINE ADVISERS4,744$68.9K<0.01%+1,61313F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP4,716$65.4K<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN3,832$55.7K<0.01%-1,41813F-HR/ATimelineGroup
China Universal Asset Management Co., L…3,600$52.3K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…2,540$36.9K<0.01%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS2,248$32.7K<0.01%+1,20013F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC2,185$31.7K<0.01%-5,27213F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND1,800$26.2K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,475$21.4K<0.01%013F-HRTimelineGroup
Steward Partners Investment Advisory, L…1,000$14.5K<0.01%013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc880$12.8K<0.01%+41813F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…801$11.6K<0.01%+9913F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…574$8.34K<0.01%+28113F-HRTimeline
CITIGROUP INCin group CITIGROUP INC526$7.64K<0.01%-5,05713F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…408$5.93K<0.01%013F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…400$5.81K<0.01%013F-HRTimelineGroup
CWM, LLCin group CWM, LLC201$2.92K<0.01%+5013F-HRTimelineGroup
Sterling Capital Management LLC156$2.27K<0.01%+3013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/27$392<0.01%013F-HRTimelineGroup
Root Financial Partners, LLC7$102<0.01%new13F-HRTimeline
Arax Advisory Partners6$87<0.01%new13F-HRTimeline
MAI Capital Management4$59<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…2$29<0.01%-513F-HR/ATimelineGroup
Essential Partners LLC2$29<0.01%+113F-HRTimeline
True Wealth Design, LLC1$15<0.01%013F-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