Company · Ownership research

Surrozen, Inc./DE SRZN

CIK 0001824893

Form 4 transactions dated Nov 1, 2023 to Nov 15, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 40 rows; the complete set is available through the API.

Insider filings on file run through Oct 22, 2026.

Some filings are submitted jointly by several insiders. The SEC form does not apportion the reported figures between them, so results include every joint filer.

Insider purchases & sales

Purchased: —
Sold: $7.27M

Nov 1, 2023 – Oct 22, 2026
Available records · partial months are marked ·

Insiders in this window

202610 of 30 preview events · 40 available in 2026

Date	Insider	Activity	Trade value (USD)	% of prior holding
Jul 22, 2026	Yu Chen-Ming · TCG Crossover GP II, LLC · TCG Crossover Fund II, L.P. · TCG Crossover Fund III, L.P. · TCG Crossover GP III, LLC 10% owner	Sale	$6.91M 325,000 shares sold	Unavailable Indirect holding	▾
May 4, 2026	Li Yang Exec. Vice President, Research	Sale	$52.80K 1,584 shares sold	8.43% sold Direct holding	▾
May 4, 2026	Williams Charles O Chief Operating Officer	Sale	$67.87K 2,036 shares sold	10.94% sold Direct holding	▾
May 4, 2026	Parker Craig C Chief Executive Officer · Director	Sale	$150.80K 4,524 shares sold	21.46% sold Direct holding	▾
Mar 24, 2026	TCG Crossover GP II, LLC · TCG Crossover Fund II, L.P. · TCG Crossover Fund III, L.P. · TCG Crossover GP III, LLC 10% owner	Purchase	$2.63M 106,658 shares bought	Unavailable Indirect holding	▾
Mar 23, 2026	TCG Crossover GP II, LLC · TCG Crossover Fund II, L.P. · TCG Crossover Fund III, L.P. · TCG Crossover GP III, LLC 10% owner	Purchase	$379.05K 15,223 shares bought	Unavailable Indirect holding	▾
Mar 16, 2026	TCG Crossover GP II, LLC · TCG Crossover Fund II, L.P. · TCG Crossover Fund III, L.P. · TCG Crossover GP III, LLC 10% owner	Purchase	$29.73K 1,190 shares bought	Unavailable Indirect holding	▾
Mar 13, 2026	TCG Crossover GP II, LLC · TCG Crossover Fund II, L.P. · TCG Crossover Fund III, L.P. · TCG Crossover GP III, LLC 10% owner	Purchase	$881.46K 35,433 shares bought	Unavailable Indirect holding	▾
Mar 12, 2026	TCG Crossover GP II, LLC · TCG Crossover Fund II, L.P. · TCG Crossover Fund III, L.P. · TCG Crossover GP III, LLC 10% owner	Purchase	$309.17K 12,374 shares bought	Unavailable Indirect holding	▾
Feb 12, 2026	TCG Crossover GP II, LLC · TCG Crossover Fund II, L.P. · TCG Crossover Fund III, L.P. · TCG Crossover GP III, LLC 10% owner	Purchase	$26.08K 1,093 shares bought	Unavailable Indirect holding	▾

Showing 30 / 40 record groups in 2026. The complete set is available through the API.

Surrozen, Inc./DE · SRZN

Follow the people behind the trades.

Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and reach other datasets through the Akkru API.

Download CSV
Earlier filings
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

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 30 of 40 purchase / sale groups and 30 of 43 other groups; the totals and the monthly series cover the whole window.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

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

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

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.