Company · Ownership research

SHOULDER INNOVATIONS, INC. SI

CIK 0001699350

Form 4 transactions dated Nov 1, 2023 to Nov 9, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 33 rows; the complete set is available through the API.

Insider filings on file run through Nov 2, 2026.

Insider purchases & sales

Purchased: $12.04M
Sold: $5.47M

Nov 1, 2023 – Nov 2, 2026
Available records · partial months are marked ·

202610 of 18 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Sep 14, 2026	Ball Robert Joseph CEO & Executive Chairman · Director	Sale	$187.71K 10,175 shares sold	2.60% sold Direct holding	▾
Aug 26, 2026	Gilde Healthcare Holding B.V. 10% owner	Sale	$27.03K 1,196 shares sold	0.05% sold Indirect holding	▾
Aug 24, 2026	Gilde Healthcare Holding B.V. 10% owner	Sale	$15.40K 681 shares sold	0.03% sold Indirect holding	▾
Aug 21, 2026	Gilde Healthcare Holding B.V. 10% owner	Sale	$463.87K 20,516 shares sold	0.93% sold Indirect holding	▾
Aug 20, 2026	Gilde Healthcare Holding B.V. 10% owner	Sale	$88.14K 3,900 shares sold	0.18% sold Indirect holding	▾
Aug 18, 2026	Ahearn Matthew Fraser Chief Operating Officer · Director	Sale10b5-1 footnote	$297.70K 14,186 shares sold	5.49% sold Direct holding	▾
Aug 17, 2026	Ahearn Matthew Fraser Chief Operating Officer · Director	Sale10b5-1 footnote	$167.10K 8,314 shares sold	3.12% sold Direct holding	▾
Aug 6, 2026	Gilde Healthcare Holding B.V. 10% owner	Sale	$47.35K 2,095 shares sold	0.09% sold Indirect holding	▾
Aug 5, 2026	Gilde Healthcare Holding B.V. 10% owner	Sale	$166.13K 7,338 shares sold	0.33% sold Indirect holding	▾
Aug 4, 2026	Gilde Healthcare Holding B.V. 10% owner	Sale	$2.27M 99,812 shares sold	4.30% sold Indirect holding	▾

Showing 18 / 18 record groups in 2026. The complete set is available through the API.

SHOULDER INNOVATIONS, INC. · SI

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 18 of 18 purchase / sale groups and 30 of 33 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"SI","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.