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Insider trading

Period: 120 months Stock: SRZN + Add filter Clear all
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When Periodin use
Who Role
The trade Type of trade Minimum amount Plan Share of their own holding
Ownership What the chief executive holds
When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

1 month 12 months 120 months
53 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

Anyone CEO CFO Other officers Directors 10% owners
53 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

Any53 Buys44 Sells9 Cluster buys
53 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

Any $100K or more $1M or more $10M or more $100M or more $500M or more
53 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
Any Discretionary Scheduled (10b5-1) Not stated Not on a plan
53 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
53 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

53 decisions over 120 months
Stock
Insider
Type ?
Value ↓
Of own stake ↓
Why it stands out
SRZN Surrozen, Inc./DE
22 Jul 2026
TCG Crossover GP II, LLC 10% owner · indirect
Sold at will 2×
$6.91M 325,000 at 21.25
36.1%
Not planned
SRZN Surrozen, Inc./DE
4 May 2026
Parker Craig C Chief Executive Officer
Sold at will
$150.80K 4,524 at 33.33
21.5%
Not planned
SRZN Surrozen, Inc./DE
4 May 2026
Williams Charles O Chief Operating Officer
Sold at will
$67.87K 2,036 at 33.33
10.9%
Not planned
SRZN Surrozen, Inc./DE
4 May 2026
Li Yang Exec. Vice President, Research
Sold at will
$52.80K 1,584 at 33.33
8.4%
Not planned
SRZN Surrozen, Inc./DE
24 Mar 2026
TCG Crossover GP II, LLC 10% owner · indirect
Bought 2×
$2.63M 106,658 at 24.69
16.9%
Largest buy in 3 yrs
SRZN Surrozen, Inc./DE
23 Mar 2026
TCG Crossover GP II, LLC 10% owner · indirect
Bought 2×
$379.05K 15,223 at 24.90
2.3%
SRZN Surrozen, Inc./DE
16 Mar 2026
TCG Crossover GP II, LLC 10% owner · indirect
Bought 2×
$29.73K 1,190 at 24.99
0.2%
SRZN Surrozen, Inc./DE
13 Mar 2026
TCG Crossover GP II, LLC 10% owner · indirect
Bought 2×
$881.46K 35,433 at 24.88
5.5%
Largest buy in 3 yrs
SRZN Surrozen, Inc./DE
12 Mar 2026
TCG Crossover GP II, LLC 10% owner · indirect
Bought 2×
$309.17K 12,374 at 24.99
1.9%
SRZN Surrozen, Inc./DE
12 Feb 2026
TCG Crossover GP II, LLC 10% owner · indirect
Bought 2×
$26.08K 1,093 at 23.86
0.2%
SRZN Surrozen, Inc./DE
11 Feb 2026
TCG Crossover GP II, LLC 10% owner · indirect
Bought 2×
$418.76K 17,763 at 23.58
2.8%
Largest buy in 3 yrs
SRZN Surrozen, Inc./DE
3 Feb 2026
TCG Crossover GP II, LLC 10% owner · indirect
Bought 2×
$95.55K 4,355 at 21.94
0.7%
Largest buy in 3 yrs
SRZN Surrozen, Inc./DE
2 Feb 2026
TCG Crossover GP II, LLC 10% owner · indirect
Bought 2×
$15.63K 731 at 21.38
0.1%
SRZN Surrozen, Inc./DE
30 Jan 2026
TCG Crossover GP II, LLC 10% owner · indirect
Bought 2×
$91.36K 4,271 at 21.39
0.7%
First buy on file
SRZN Surrozen, Inc./DE
20 Jan 2026
Kutzkey Tim Director · indirect
Bought 2×
$353.82K 18,052 at 19.60
1.8%
SRZN Surrozen, Inc./DE
20 Jan 2026
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$353.82K 18,052 at 19.60
1.8%
SRZN Surrozen, Inc./DE
16 Jan 2026
Kutzkey Tim Director · indirect
Bought 2×
$51.24K 2,562 at 20.00
0.3%
SRZN Surrozen, Inc./DE
16 Jan 2026
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$51.24K 2,562 at 20.00
0.3%
SRZN Surrozen, Inc./DE
15 Jan 2026
Kutzkey Tim Director · indirect
Bought 2×
$236.54K 11,893 at 19.89
1.2%
SRZN Surrozen, Inc./DE
15 Jan 2026
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$236.54K 11,893 at 19.89
1.2%
SRZN Surrozen, Inc./DE
14 Jan 2026
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$110.40K 5,523 at 19.99
0.6%
SRZN Surrozen, Inc./DE
14 Jan 2026
Kutzkey Tim Director · indirect
Bought 2×
$110.40K 5,523 at 19.99
0.6%
SRZN Surrozen, Inc./DE
13 Jan 2026
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$246.96K 12,470 at 19.80
1.3%
SRZN Surrozen, Inc./DE
13 Jan 2026
Kutzkey Tim Director · indirect
Bought 2×
$246.96K 12,470 at 19.80
1.3%
SRZN Surrozen, Inc./DE
6 Jan 2026
Kutzkey Tim Director · indirect
Bought 2×
$300.30K 15,100 at 19.89
1.5%
SRZN Surrozen, Inc./DE
6 Jan 2026
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$300.30K 15,100 at 19.89
1.5%
SRZN Surrozen, Inc./DE
5 Jan 2026
Williams Charles O Chief Operating Officer
Sold at will
$31.11K 1,566 at 19.87
10.8%
Not planned
SRZN Surrozen, Inc./DE
5 Jan 2026
Li Yang Exec. Vice President, Research
Sold at will
$22.21K 1,118 at 19.87
6.5%
Not planned
SRZN Surrozen, Inc./DE
5 Dec 2025
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$603.50K 30,884 at 19.54
3.2%
SRZN Surrozen, Inc./DE
5 Dec 2025
Kutzkey Tim Director · indirect
Bought 2×
$603.50K 30,884 at 19.54
3.2%
SRZN Surrozen, Inc./DE
4 Dec 2025
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$91.35K 5,266 at 17.35
0.5%
SRZN Surrozen, Inc./DE
4 Dec 2025
Kutzkey Tim Director · indirect
Bought 2×
$91.35K 5,266 at 17.35
0.5%
SRZN Surrozen, Inc./DE
13 Nov 2025
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$3.99M 315,457 at 12.65
48.7%
+49% of stake
SRZN Surrozen, Inc./DE
13 Nov 2025
Kutzkey Tim Director · indirect
Bought 2×
$3.99M 315,457 at 12.65
48.7%
Largest buy in 3 yrs
SRZN Surrozen, Inc./DE
26 Mar 2025
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 3×
$12.00M 1,034,482 at 11.60
opened
Largest buy in 3 yrs
SRZN Surrozen, Inc./DE
3 Jan 2025
Williams Charles O CFO and COO
Sold at will
$20.51K 1,181 at 17.37
11.6%
Not planned
SRZN Surrozen, Inc./DE
3 Jan 2025
Li Yang Exec. Vice President, Research
Sold at will
$14.64K 843 at 17.37
5.9%
Not planned
SRZN Surrozen, Inc./DE
4 Apr 2024
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$3.00M 193,548 at 15.50
139%
First buy on file
SRZN Surrozen, Inc./DE
4 Apr 2024
Kutzkey Tim Director · indirect
Bought 2×
$3.00M 193,548 at 15.50
139%
First buy on file
SRZN Surrozen, Inc./DE
4 Apr 2024
Parker Craig C Chief Executive Officer
Bought
no price 1,474 shares
opened
First buy on file
SRZN Surrozen, Inc./DE
4 Apr 2024
Williams Charles O CFO and COO
Bought
no price 1,474 shares
opened
First buy on file
SRZN Surrozen, Inc./DE
14 Dec 2022
BLUTT MITCHELL J MD 10% owner · indirect
Sold, plan not stated 4×
no price 5,382,499 shares
100%
Sold half or more
SRZN Surrozen, Inc./DE
1 Dec 2020
Livingston Kevin Harold Chief Financial Officer · indirect
Bought
no price 24,000 shares
5.9%
SRZN Surrozen, Inc./DE
1 Dec 2020
Soffer Benny Director · indirect
Bought
no price 24,000 shares
5.9%
SRZN Surrozen, Inc./DE
1 Dec 2020
Consonance Life Sciences 10% owner
Bought
no price 24,000 shares
5.9%
SRZN Surrozen, Inc./DE
1 Dec 2020
BLUTT MITCHELL J MD Director · indirect
Bought
no price 24,000 shares
5.9%
SRZN Surrozen, Inc./DE
23 Nov 2020
BLUTT MITCHELL J MD Director · indirect
Bought
no price 500,000 shares
opened
First buy on file
SRZN Surrozen, Inc./DE
23 Nov 2020
Soffer Benny Director · indirect
Bought
no price 410,000 shares
opened
First buy on file
SRZN Surrozen, Inc./DE
23 Nov 2020
Consonance Life Sciences 10% owner
Bought
no price 410,000 shares
opened
First buy on file
SRZN Surrozen, Inc./DE
23 Nov 2020
BLUTT MITCHELL J MD Director · indirect
Bought
no price 410,000 shares
opened
First buy on file
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