← United States · Coverage record
US · SEC FORM 4
Surrozen, Inc./DE
SRZN · Nasdaq · CIK 0001824893 · Healthcare · Biotechnology
INSIDER SIGNAL
No active buy signal
0 qualifying P purchase groups
in the current 180-day scoring window
11 Form 4 transaction lines observed in the same window
4 sales · 7 option, withholding, award, gift or other lines
Last qualifying purchase2026-03-24 · TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC · $1.3M
WHY NO ACTIVE SIGNAL?
Purchase activityNone
Recent buyingNone
Recent salesModerate
Buy signal statusInactive
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
AprMayJunJulAugSepOct
Williams Charles OChief Operating Officer
○▼○
Parker Craig CChief Executive Officer
○▼○
Li YangExec. Vice President, Research
○▼○
Maleki Andrew PedrumChief Financial Officer
○
TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC; Yu Chen-MingTenPercentOwner
▼
● Purchase▼ Sale○ Other
—
SIGNAL HISTORY
No recorded active-signal snapshot
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-03-24 · TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC.
Recent Form 4 activity
53Purchases
6Sales
12Other Form 4 lines
27SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING4 sale line(s) · context only
OTHER7 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 2,189,760
- Previous report
- 2,195,505
- Avg daily volume
- 1,450,761
- Days to cover
- 1.5
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-03-24 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 53,329 | USD 24.69 | USD 1,316,693 | SEC filing ↗ |
| 2026-03-23 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 15,223 | USD 24.90 | USD 379,053 | SEC filing ↗ |
| 2026-03-16 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 595 | USD 24.99 | USD 14,869 | SEC filing ↗ |
| 2026-03-13 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 35,433 | USD 24.88 | USD 881,573 | SEC filing ↗ |
| 2026-03-12 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 6,187 | USD 24.99 | USD 154,613 | SEC filing ↗ |
| 2026-02-12 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 1,093 | USD 23.86 | USD 26,079 | SEC filing ↗ |
| 2026-02-11 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 17,763 | USD 23.58 | USD 418,852 | SEC filing ↗ |
| 2026-02-03 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 4,355 | USD 21.94 | USD 95,549 | SEC filing ↗ |
| 2026-02-02 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 731 | USD 21.38 | USD 15,629 | SEC filing ↗ |
| 2026-01-30 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 4,271 | USD 21.39 | USD 91,357 | SEC filing ↗ |
| 2026-01-20 | Kutzkey Tim | Purchase (P) | Common Stock | 18,052 | USD 19.60 | USD 353,819 | SEC filing ↗ |
| 2026-01-20 | COLUMN GROUP III GP, LP; COLUMN GROUP III, LP; COLUMN GROUP III-A, LP; Column Group Opportunity III GP, LP; Column Group Opportunity III, LP; Svennilson Peter; TCG Opportunity III GP, LLC | Purchase (P) | Common Stock | 18,052 | USD 19.60 | USD 353,819 | SEC filing ↗ |
| 2026-01-16 | Kutzkey Tim | Purchase (P) | Common Stock | 2,562 | USD 20.00 | USD 51,240 | SEC filing ↗ |
| 2026-01-16 | COLUMN GROUP III GP, LP; COLUMN GROUP III, LP; COLUMN GROUP III-A, LP; Column Group Opportunity III GP, LP; Column Group Opportunity III, LP; Svennilson Peter; TCG Opportunity III GP, LLC | Purchase (P) | Common Stock | 2,562 | USD 20.00 | USD 51,240 | SEC filing ↗ |
| 2026-01-15 | Kutzkey Tim | Purchase (P) | Common Stock | 11,893 | USD 19.89 | USD 236,552 | SEC filing ↗ |
Form 4 evidence
71 transaction lines in the latest 365-day window; 170 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-07-22 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC; Yu Chen-Ming | Sale (S) | Common Stock | 162,500 | USD 21.25 | USD 3,453,125 | SEC filing ↗ |
| 2026-06-15 | Williams Charles O | Award / grant (A) | Common Stock | 1,666 | USD 8.11 | USD 13,511 | SEC filing ↗ |
| 2026-06-15 | Parker Craig C | Award / grant (A) | Common Stock | 1,622 | USD 8.11 | USD 13,154 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-07-22 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC; Yu Chen-Ming | Sale (S) | Common Stock | 162,500 | USD 21.25 | USD 3,453,125 | SEC filing ↗ |
| 2026-06-15 | Williams Charles O | Award / grant (A) | Common Stock | 1,666 | USD 8.11 | USD 13,511 | SEC filing ↗ |
| 2026-06-15 | Parker Craig C | Award / grant (A) | Common Stock | 1,622 | USD 8.11 | USD 13,154 | SEC filing ↗ |
| 2026-06-15 | Maleki Andrew Pedrum | Award / grant (A) | Common Stock | 607 | USD 19.01 | USD 11,539 | SEC filing ↗ |
| 2026-06-15 | Li Yang | Award / grant (A) | Common Stock | 1,666 | USD 8.11 | USD 13,511 | SEC filing ↗ |
| 2026-05-04 | Williams Charles O | Sale (S) | Common Stock | 2,036 | USD 33.33 | USD 67,860 | SEC filing ↗ |
| 2026-05-04 | Parker Craig C | Sale (S) | Common Stock | 4,524 | USD 33.33 | USD 150,785 | SEC filing ↗ |
| 2026-05-04 | Li Yang | Sale (S) | Common Stock | 1,584 | USD 33.33 | USD 52,795 | SEC filing ↗ |
| 2026-05-01 | Williams Charles O | Option exercise / conversion (M) | Common Stock | 5,625 | USD — | USD — | SEC filing ↗ |
| 2026-05-01 | Parker Craig C | Option exercise / conversion (M) | Common Stock | 12,500 | USD — | USD — | SEC filing ↗ |
| 2026-05-01 | Li Yang | Option exercise / conversion (M) | Common Stock | 4,375 | USD — | USD — | SEC filing ↗ |
| 2026-03-24 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 53,329 | USD 24.69 | USD 1,316,693 | SEC filing ↗ |
| 2026-03-23 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 15,223 | USD 24.90 | USD 379,053 | SEC filing ↗ |
| 2026-03-16 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 595 | USD 24.99 | USD 14,869 | SEC filing ↗ |
| 2026-03-13 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 35,433 | USD 24.88 | USD 881,573 | SEC filing ↗ |
| 2026-03-12 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 6,187 | USD 24.99 | USD 154,613 | SEC filing ↗ |
| 2026-02-12 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 1,093 | USD 23.86 | USD 26,079 | SEC filing ↗ |
| 2026-02-11 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 17,763 | USD 23.58 | USD 418,852 | SEC filing ↗ |
| 2026-02-03 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 4,355 | USD 21.94 | USD 95,549 | SEC filing ↗ |
| 2026-02-02 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 731 | USD 21.38 | USD 15,629 | SEC filing ↗ |
| 2026-01-30 | TCG Crossover Fund II, L.P.; TCG Crossover Fund III, L.P.; TCG Crossover GP II, LLC; TCG Crossover GP III, LLC | Purchase (P) | Common Stock | 4,271 | USD 21.39 | USD 91,357 | SEC filing ↗ |
| 2026-01-20 | Kutzkey Tim | Purchase (P) | Common Stock | 18,052 | USD 19.60 | USD 353,819 | SEC filing ↗ |
| 2026-01-20 | COLUMN GROUP III GP, LP; COLUMN GROUP III, LP; COLUMN GROUP III-A, LP; Column Group Opportunity III GP, LP; Column Group Opportunity III, LP; Svennilson Peter; TCG Opportunity III GP, LLC | Purchase (P) | Common Stock | 18,052 | USD 19.60 | USD 353,819 | SEC filing ↗ |
| 2026-01-16 | Kutzkey Tim | Purchase (P) | Common Stock | 2,562 | USD 20.00 | USD 51,240 | SEC filing ↗ |
| 2026-01-16 | COLUMN GROUP III GP, LP; COLUMN GROUP III, LP; COLUMN GROUP III-A, LP; Column Group Opportunity III GP, LP; Column Group Opportunity III, LP; Svennilson Peter; TCG Opportunity III GP, LLC | Purchase (P) | Common Stock | 2,562 | USD 20.00 | USD 51,240 | SEC filing ↗ |
| 2026-01-15 | Kutzkey Tim | Purchase (P) | Common Stock | 11,893 | USD 19.89 | USD 236,552 | SEC filing ↗ |
| 2026-01-15 | COLUMN GROUP III GP, LP; COLUMN GROUP III, LP; COLUMN GROUP III-A, LP; Column Group Opportunity III GP, LP; Column Group Opportunity III, LP; Svennilson Peter; TCG Opportunity III GP, LLC | Purchase (P) | Common Stock | 11,893 | USD 19.89 | USD 236,552 | SEC filing ↗ |
| 2026-01-14 | Kutzkey Tim | Purchase (P) | Common Stock | 5,523 | USD 19.99 | USD 110,405 | SEC filing ↗ |
| 2026-01-14 | COLUMN GROUP III GP, LP; COLUMN GROUP III, LP; COLUMN GROUP III-A, LP; Column Group Opportunity III GP, LP; Column Group Opportunity III, LP; Svennilson Peter; TCG Opportunity III GP, LLC | Purchase (P) | Common Stock | 5,523 | USD 19.99 | USD 110,405 | SEC filing ↗ |
| 2026-01-13 | Kutzkey Tim | Purchase (P) | Common Stock | 12,470 | USD 19.80 | USD 246,906 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-19 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | SRZN |
| CIK | 0001824893 |
| Sector | Healthcare |
| Industry | Biotechnology Yahoo Finance |
| SEC SIC | 2836 Biological Products, (No Diagnostic Substances) |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 170 transaction lines from 2020-09-04 to 2026-07-22 77 P purchase lines · 16 S sale lines · 77 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.