CMPX

Compass Therapeutics Inc
Health CareUSCUSIP 20454B104◍ Confluence graph
Tracked 13F Holders
193
-101 QoQ
13F Value (tracked)
$753.6M
Insider Net · 180d
$76K
2↑ 0↓
Recent Filings
15
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)42 adding · 9 trimming
Insider net (180d)+$76K

Who owns CMPX?

193 tracked 13F filers

193 tracked 13F filers disclose a position in CMPX as of the latest SEC 13F filings, a combined $753.6M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
#FundPosition valueSharesLast moveAs ofHistory
1TANG CAPITAL MANAGEMENT LLC
$88.8M
16.8M
Held
Q1 2026
2ORBIMED ADVISORS LLC
$80.5M
15.2M
Held
Q1 2026
3SUVRETTA CAPITAL MANAGEMENT, LLC
$75.7M
14.3M
+0.9%
Added · +125K sh
Q1 2026
4STATE STREET CORP
$21.8M
10.0M
+49%
Added · +3.3M sh
Q2 2026
5BlackRock, Inc.
$50.3M
9.5M
+1.3%
Added · +117K sh
Q1 2026
6ADAGE CAPITAL PARTNERS GP, L.L.C.
$44.9M
8.5M
+91%
Added · +4.0M sh
Q1 2026
7Enavate Sciences GP, LLC
$41.2M
7.8M
Held
Q1 2026
8BVF INC/IL
$41.1M
7.8M
Held
Q1 2026
9Vivo Capital, LLC
$17.0M
7.8M
−19%
Reduced · −1.8M sh
Q2 2026
10VANGUARD CAPITAL MANAGEMENT LLC
$31.9M
6.0M
First observed position
No prior filed position
Q1 2026
11Palo Alto Investors LP
$12.8M
5.8M
+285%
Added · +4.3M sh
Q2 2026
12GEODE CAPITAL MANAGEMENT, LLC
$8.4M
3.8M
+7.0%
Added · +249K sh
Q2 2026
13Blue Owl Capital Holdings LP
$7.9M
3.6M
+23%
Added · +683K sh
Q2 2026
14DEERFIELD MANAGEMENT COMPANY, L.P.
$19.1M
3.6M
Held
Q1 2026
15Rock Springs Capital Management LP
$7.7M
3.5M
+6.6%
Added · +220K sh
Q2 2026
16Logos Global Management LP
$16.7M
3.1M
+174%
Added · +2.0M sh
Q1 2026
17Qube Research & Technologies Ltd
$13.5M
2.6M
+477%
Added · +2.1M sh
Q1 2026
18UBS Group AG
$12.7M
2.4M
14×
Added · +2.2M sh
Q1 2026
19GOLDMAN SACHS GROUP INC
$10.6M
2.0M
+31%
Added · +478K sh
Q1 2026
20Blackstone Inc.
$9.8M
1.9M
−70%
Reduced · −4.3M sh
Q1 2026
21FMR LLC
$9.5M
1.8M
−30%
Reduced · −778K sh
Q1 2026
22Birchview Capital, LP
$3.7M
1.7M
+14%
Added · +209K sh
Q2 2026
23AMERIPRISE FINANCIAL INC
$8.4M
1.6M
+94%
Added · +774K sh
Q1 2026
24GREAT POINT PARTNERS LLC
$7.1M
1.4M
New
+1.4M sh
Q1 2026
25Fisher Asset Management, LLC
$7.1M
1.3M
New
+1.3M sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is CMPX being bought or sold by institutions?

Last quarter, 17 funds opened a new position in CMPX and 25 added to an existing one, while 9 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
17
funds
Added
25
funds
Reduced
9
funds
Exited
0
funds

Funds that own CMPX also own

CompanyCo-held byCombined value
NVIDIA CORPNVDA90 funds$263.3B
MICROSOFT CORPMSFT90 funds$176.2B
AMAZON.COM INCAMZN89 funds$127.6B
META PLATFORMS INC-CLASS AMETA88 funds$74.0B
ELI LILLY & COLLY88 funds$56.4B
MICRON TECHNOLOGY INCMU86 funds$23.3B
ADVANCED MICRO DEVICESAMD86 funds$21.4B
VISA INC-CLASS A SHARESV85 funds$40.6B
APPLIED MATERIALS INCAMAT85 funds$18.8B
LAM RESEARCH CORPLRCX84 funds$21.3B
GENERAL ELECTRICGE84 funds$19.6B
BROADCOM INCAVGO83 funds$104.1B

Ranked by how many of CMPX's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$76K
2 insiders
Sells · 180d
$0
0 insiders
Net
$76K
2 P/S txns
Signal
Net Buying
open-market
DateInsiderRoleActionSharesValue
Apr 29, 2026Anderman JonathanGeneral CounselBuy (P)25K$47K
Apr 29, 2026Lerner NeilChief Accounting OfficerBuy (P)15K$28K
May 27, 2025Schuetz Thomas J.CHIEF EXECUTIVE OFFICER, DirectorBuy (P)10K$21K
Apr 9, 2025OrbiMed Capital GP VI LLCDirector, 10% OwnerSell (S)3.6M$5.7M
Apr 9, 2025GORDON CARL LDirector, 10% OwnerSell (S)3.6M$5.7M
Apr 7, 2025Lerner NeilCHIEF ACCOUNTING OFFICERBuy (P)20K$28K
Apr 7, 2025Anderman JonathanGen Counsel & Corporate SecBuy (P)20K$31K
Mar 10, 2023Schuetz Thomas J.CHIEF EXECUTIVE OFFICER, DirectorBuy (P)10K$34K
Feb 27, 2023Schuetz Thomas J.CHIEF EXECUTIVE OFFICER, DirectorBuy (P)20K$80K
Feb 15, 2023Schuetz Thomas J.CHIEF EXECUTIVE OFFICER, DirectorBuy (P)20K$77K
Jan 31, 2023Schuetz Thomas J.CHIEF EXECUTIVE OFFICER, DirectorBuy (P)20K$81K
Jan 24, 2023Schuetz Thomas J.CHIEF EXECUTIVE OFFICER, DirectorBuy (P)20K$84K

Institutional ownership over time

76 funds+14 since Q3 2024
089177Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $92.3M

Recent filings

15 shown

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Connected entities for CMPX

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Ask your agent what changed in CMPX

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/CMPX/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for CMPX.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for CMPX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.