Arkolith/Funds/Venrock Adviser, LLC

Venrock Adviser, LLC

CIK 1615982Hedge fund
Holdings as of Mar 31, 2026·disclosed May 15, 2026·~45-day 13F lag·13F-HR
Active Filer

Venrock Adviser, LLC holds a focused book of 33 stocks worth $2.7B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Damora Therapeutics Inc and trimmed Erasca Inc. Their largest long position is Apogee Therapeutics Inc at 27% of the equity book.

Opened
8
bought for the first time
Added to
6
already held, bought more
Trimmed
6
sold some, still holds it
Sold out
2
exited the position entirely

Concentration

Top-heavy: focused book

Top 5 holdings
56%
Top 10 holdings
72%
Top 20 holdings
91%

Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.

Direct sector allocation

99% mapped to company sectors

Health Care
99%
ETF / fund or unclassified
1%

Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.

Biggest moves: latest quarter

Estimated $ traded · quarter-end prices, no cost basis

Bought
Trimmed / exited

Funds with the most overlap

Other tracked managers holding the same core names as Venrock Adviser, LLC

Manager / fundShared namesTheir $ in those
UBS Group AG34 / 33$353.7M
MORGAN STANLEY33 / 33$318.8M
BlackRock, Inc.32 / 33$3.2B
GEODE CAPITAL MANAGEMENT, LLC32 / 33$1.5B
GOLDMAN SACHS GROUP INC32 / 33$627.1M
MILLENNIUM MANAGEMENT LLC32 / 33$334.6M
NORTHERN TRUST CORP32 / 33$306.3M
BNP PARIBAS FINANCIAL MARKETS32 / 33$86.3M

Ranked by the share of each fund's own book sitting in the names it shares with Venrock Adviser, LLC: only funds sharing at least a tenth of the book qualify. Index giants, bank custody books and market makers are excluded. They hold everything, so their overlap says nothing.

Holdings: largest first

Bars show each stock's share of the portfolio. Click a row for its position history.

33 positions
#SecurityValueShares% PortLast moveHistory
1
COM
$714.9M8.49M
26.7%
—Held
2
COM
$265.1M16.38M
9.9%
▼−8.3%
Reduced · −1.5M sh
3
COM
$203.5M4.15M
7.6%
—Held
4
COM NEW
$185.9M3.69M
6.9%
—Held
5
COM
$130.3M6.47M
4.9%
▼−3.8%
Reduced · −255K sh
6
COM
$99.0M1.18M
3.7%
▲+18%
Added · +180K sh
7
COM NEW
$93.3M3.60M
3.5%
▲New
New position
8
COM
$87.6M10.35M
3.3%
▲+41%
Added · +3.0M sh
9
COM
$77.0M2.00M
2.9%
—Held
10
COM
$75.9M3.88M
2.8%
—Held
11
COM
$75.0M13.74M
2.8%
—Held
12
COM
$67.7M1.73M
2.5%
▼−46%
Reduced · −1.5M sh
13
COM
$54.7M4.32M
2.0%
▼−24%
Reduced · −1.4M sh
14
COM NEW
$54.3M3.04M
2.0%
▲+56%
Added · +1.1M sh
15
COM
$47.8M1.60M
1.8%
▲+3.5%
Added · +53K sh
16
COM
$46.9M9.98M
1.8%
▼−36%
Reduced · −5.6M sh
17
COM NEW
$45.2M3.22M
1.7%
—Held
18
COM
$39.4M2.17M
1.5%
—Held
19
COM
$39.2M2.13M
1.5%
—Held
20
CLASS A ORD SHS
$38.3M6.43M
1.4%
▲+20%
Added · +1.1M sh
21
COM
$33.7M4.84M
1.3%
▲New
New position
22
COM
$32.5M4.77M
1.2%
—Held
23
COM NEW
$26.8M1.68M
1.0%
▲New
New position
24
SPONSORED ADS
$22.2M3.21M
0.8%
▲New
New position
25
COM
$19.7M8.70M
0.7%
▲New
New position
26
COM
$19.6M1.38M
0.7%
—Held
27
COM NEW
$18.5M3.85M
0.7%
▲+0.3%
Added · +11K sh
28
COM NEW
$18.4M632.9K
0.7%
—Held
29
COM
$12.2M506.1K
0.5%
▼−17%
Reduced · −105K sh
30
COM
$11.4M1.01M
0.4%
▲New
New position
31
COM SHS
$11.2M500.0K
0.4%
▲New
New position
32
COM
$10.4M1.61M
0.4%
—Held
33
COM NEW
$1.4M330.5K
0.1%
▲New
New position
Showing all 33 positions
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Filing history

As-of date vs the date the SEC received each filing

QuarterAs ofFiledPositionsValueForm
Q1 2026Mar 31, 2026May 15, 202633$2.7B13F-HR
Q4 2025Dec 31, 2025Feb 17, 202627$2.0B13F-HR
Q3 2025Sep 30, 2025Nov 14, 202533$1.8B13F-HR
Q2 2025Jun 30, 2025Aug 14, 202531$1.3B13F-HR
Q1 2025Mar 31, 2025May 15, 202537$1.2B13F-HR
Q4 2024Dec 31, 2024Feb 14, 202537$1.5B13F-HR
Q3 2024Sep 30, 2024Nov 14, 202438$1.9B13F-HR
Q2 2024Jun 30, 2024Aug 14, 202435$1.6B13F-HR
Q1 2024Mar 31, 2024May 15, 202438$2.1B13F-HR
Q4 2023Dec 31, 2023Feb 14, 202436$1.5B13F-HR
Q3 2023Sep 30, 2023Nov 14, 202337$949.9M13F-HR
Q2 2023Jun 30, 2023Aug 11, 202330$625.4M13F-HR
Q1 2023Mar 31, 2023May 15, 202325$512.2M13F-HR
Q4 2022Dec 31, 2022May 15, 202328$593.6M13F-HR/A
Q3 2022Sep 30, 2022May 15, 202331$648.1M13F-HR/A
Q2 2022Jun 30, 2022May 15, 202327$507.8M13F-HR/A
Q1 2022Mar 31, 2022May 16, 202227$617.2M13F-HR
Q4 2021Dec 31, 2021Feb 14, 202226$731.5M13F-HR
Q3 2021Sep 30, 2021Nov 15, 202126$778.5M13F-HR
Q2 2021Jun 30, 2021Aug 13, 202129$824.4M13F-HR
Q1 2021Mar 31, 2021May 14, 202128$921.8M13F-HR
Amended / restated
  • Q4 2022 · filed Feb 14, 202313F-HR · superseded
  • Q3 2022 · filed Nov 14, 202213F-HR · superseded
  • Q2 2022 · filed Aug 15, 202213F-HR · superseded

Data source

Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.