Vault-13

SURROZEN INC SRZN

COM NEW · Common Stock · CUSIP 86889P208

21 institutional holders +5 vs Q1 2024
1,482,3551.5m shares reported held*
46.2% of all shares outstanding*
$16.2mreported value*
8 new 4 added 3 reduced 3 sold out net bought ≈ $11.7m (+1.1m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 3.2m as of 2024-08-08, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $10.95. Options: 1 managers hold calls ($2.7m notional), 0 hold puts (—).

Trends to Q2 2024

Institutional holders

Managers reporting a position, each quarter

0102030Q4 23: 17Q1 24: 16Q2 24: 2121Q4 23Q1 24Q2 24
Numbers
QuarterHolders
Q4 202317
Q1 202416
Q2 202421

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
20020Q1 24: 6 bought or addedQ1 24: 4 cut or sold outQ1 24Q2 24: 12 bought or addedQ2 24: 6 cut or sold outQ2 24
Numbers
QuarterBought or addedCut or sold out
Q1 202464
Q2 2024126

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$1m$2m$3mQ3 23 calls: $0Q3 23 puts: $0Q3 23P/C —Q4 23 calls: $2.4mQ4 23 puts: $0Q4 23P/C 0.00Q1 24 calls: $0Q1 24 puts: $0Q1 24P/C —Q2 24 calls: $2.7mQ2 24 puts: $0Q2 24P/C 0.00
Numbers
QuarterCallsPutsP/C
Q3 2023$0$0—
Q4 2023$2.4m$00.00
Q1 2024$0$0—
Q2 2024$2.7m$00.00

Biggest buyers

Nantahala Capital Management, LLC New +374,412+374.4k
RA CAPITAL MANAGEMENT, L.P. New +282,580+282.6k
ARMISTICE CAPITAL, LLC New +190,000+190.0k
STEMPOINT CAPITAL LP New +143,510+143.5k
Stonepine Capital Management, LLC New +66,084+66.1k
CVI Holdings, LLC New +64,905+64.9k
UBS Group AG New +12,027+12.0k
GEODE CAPITAL MANAGEMENT, LLC Added +7,235+7.2k
BlackRock Inc. Added +3,267+3.3k
ROYAL BANK OF CANADA Added +180+180

Biggest sellers

MORGAN STANLEY Reduced -70,422-70.4k
RENAISSANCE TECHNOLOGIES LLC Reduced -1,300-1.3k
VANGUARD GROUP INC Reduced -676-676
ADAR1 Capital Management, LLC Sold out -450-450
Tower Research Capital LLC (TRC) Sold out -184-184
WELLS FARGO & COMPANY/MN Sold out -10-10

Biggest calls

Alyeska Investment Group, L.P. New $2.7m250.0k shares

Biggest puts

None

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
COLUMN GROUP III GP, LP 13D · may seek influence -7.8 pts · filed 2026-10-22
Stated purposeThe information set forth in Item 4 of the Original Schedule 13D is incorporated herein by reference. Full filing
21.5% -7.8 pts 3.8m≈ $72.1m 2026-10-22
Boxer Capital Management, LLC 13G · institution +2.7 pts · filed 2026-10-07 11.6% +2.7 pts 1.4m≈ $35.3m 2026-10-07
Column Group IV GP, LP 13D · may seek influence new · filed 2026-02-12
Stated purposeThe information set forth in Item 3 of this Statement is incorporated herein by reference. The Reporting Persons hold the securities of the Issuer for general investment purposes. The Reporting Persons may, from time to time, depending on prevailing market, economic and other conditions, acquire additional shares of Common Stock or other securities of the Issuer, dispose of any such securities, or engage in discussions with the Issuer concerning such acquisitions or dispositions or further investments in the Issuer. The Reporting Persons intend to review their investment in the Issuer on a continuing basis and, depending upon the price and availability of shares of Common Stock or other securities of the Issuer, subsequent developments affecting the Issuer, the Issuer's business and prospe… Full filing
11.6% new 6.4m≈ $38.9m 2026-02-12
TCG Crossover GP II, LLC 13G · passive investor -2.8 pts · filed 2026-07-24 9.9% -2.8 pts 1.1m≈ $29.8m 2026-07-24
Venrock Healthcare Capital Partners III, L.P. 13G · passive investor no change · filed 2026-05-15 9.9% no change 1.2m≈ $31.3m 2026-05-15
AI Biotechnology LLC 13G · passive investor new · filed 2025-03-31 9.9% new 844.6k≈ $21.9m 2025-03-31
RA CAPITAL MANAGEMENT, L.P. 13G · passive investor -0.7 pts · filed 2026-02-17 9.2% -0.7 pts 871.7k≈ $22.6m 2026-02-17
INTEGRATED CORE STRATEGIES (US) LLC 13G · passive investor +1.9 pts · filed 2026-02-05 8.5% +1.9 pts 726.2k≈ $18.8m 2026-02-05
5AM Partners VII, LLC 13G · passive investor -1.7 pts · filed 2026-08-11 7.8% -1.7 pts 968.8k≈ $25.1m 2026-08-11
Commodore Capital LP 13G · passive investor new · filed 2026-10-01 7.5% new 885.0k≈ $23.0m 2026-10-01
Point72 Asset Management, L.P. 13G · passive investor new · filed 2026-04-23 5.4% new 616.0k≈ $16.0m 2026-04-23
STEMPOINT CAPITAL LP 13G · institution +0.5 pts · filed 2026-08-14 5.0% +0.5 pts 602.8k≈ $15.6m 2026-08-14

Fell to 5% or below in the last year: BRAIDWELL LP (3.9%, 2026-08-14), Nantahala Capital Management, LLC (2.1%, 2026-05-15), Stonepine Capital Management, LLC (3.6%, 2026-02-13)

Insider purchases and sales in Q2 2024

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
404Q3 22: 0 buyingQ3 22: 0 sellingQ4 22: 0 buyingQ4 22: 0 sellingQ4 22Q1 23: 0 buyingQ1 23: 0 sellingQ2 23: 0 buyingQ2 23: 0 sellingQ2 23Q3 23: 0 buyingQ3 23: 0 sellingQ4 23: 0 buyingQ4 23: 0 sellingQ4 23Q1 24: 0 buyingQ1 24: 0 sellingQ2 24: 3 buyingQ2 24: 0 sellingQ2 24
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20220—0——
Q4 20220—0——
Q1 20230—0——
Q2 20230—0——
Q3 20230—0——
Q4 20230—0——
Q1 20240—0——
Q2 20243$3.0m0——
DateInsiderTradeSharesPrice ValueTheir holding
2024-04-04 Kutzkey Tim Director · By The Column Group III-A, LP Bought 102,651 $15.50 $1.6m102.7k shares +46%
2024-04-04 COLUMN GROUP III-A, LP +2 10% owner · By The Column Group III-A, LP Bought 102,651 $15.50 $1.6m102.7k shares +46%
2024-04-04 Kutzkey Tim Director · By The Column Group III, LP Bought 90,897 $15.50 $1.4m90.9k shares +46%
2024-04-04 COLUMN GROUP III-A, LP +2 10% owner · By The Column Group III, LP Bought 90,897 $15.50 $1.4m90.9k shares +46%
2024-04-04 Parker Craig C Chief Executive Officer, director Bought 1,474 — —1.5k shares new
2024-04-04 Williams Charles O CFO and COO Bought 1,474 — —1.5k shares new

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Nantahala Capital Management, LLC 0.21% of their portfolio NEW CANAAN, CT 374,412374.4k $4.1m $4.1m 0.21% New
2 RA CAPITAL MANAGEMENT, L.P. 0.04% of their portfolio BOSTON, MA 282,580282.6k $3.1m $3.1m 0.04% New
3 ARMISTICE CAPITAL, LLC 0.05% of their portfolio NEW YORK, NY 190,000190.0k $2.1m $2.1m 0.05% New
4 STEMPOINT CAPITAL LP 0.46% of their portfolio NEW YORK, NY 143,510143.5k $1.6m $1.6m 0.46% New
5 Euclidean Capital LLC 0.12% of their portfolio NEW YORK, NY 87,69687.7k $960.3k $960.3k 0.12% Unchanged
6 Stonepine Capital Management, LLC 0.66% of their portfolio Bend, OR 66,08466.1k $723.6k $723.6k 0.66% New
7 CVI Holdings, LLC 0.61% of their portfolio WILMINGTON, DE 64,90564.9k $710.7k $710.7k 0.61% New
8 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 60,83560.8k $666.1k $666.1k 0.00% Reduced -676 -676
9 ArrowMark Colorado Holdings LLC 0.01% of their portfolio Denver, CO 55,12355.1k $603.6k $603.6k 0.01% Unchanged
10 Board of Trustees of The Leland Stanford Junior University 0.04% of their portfolio STANFORD, CA 52,13052.1k $570.8k $570.8k 0.04% Unchanged
11 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 35,21135.2k $385.6k $385.6k 0.00% Reduced -70.4k -70,422
12 Alyeska Investment Group, L.P. 0.00% of their portfolio CHICAGO, IL 20,37620.4k $223.1k $223.1k 0.00% Unchanged
13 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 18,70818.7k $204.9k $204.9k 0.00% Added +7.2k +7,235
14 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 12,42612.4k $136.1k $136.1k 0.00% Reduced -1.3k -1,300
15 UBS Group AG 0.00% of their portfolio ZURICH, V8 12,02712.0k $131.7k $131.7k 0.00% New
16 BlackRock Inc. 0.00% of their portfolio New York, NY 5,6795.7k $62.2k $62.2k 0.00% Added +3.3k +3,267
17 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 338338 $4.0k $4.0k 0.00% Added +180 +180
18 WOLVERINE ASSET MANAGEMENT LLC 0.00% of their portfolio CHICAGO, IL 281281 $3.1k $3.1k 0.00% Unchanged
19 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 2020 $219 $219 0.00% New
20 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 1414 $154 $154 0.00% Added +8 +8
21 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged