COGT

Cogent Biosciences Inc
Health CareUSCUSIP 19240Q201◍ Confluence graph
Tracked 13F Holders
277
-141 QoQ
13F Value (tracked)
$6.7B
Insider Net · 180d
-$244.3M
0↑ 2↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)42 adding · 28 trimming
Insider net (180d)-$244.3M

Who owns COGT?

277 tracked 13F filers

277 tracked 13F filers disclose a position in COGT as of the latest SEC 13F filings, a combined $6.7B 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.
2 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1FMR LLC
$890.0M
23.1M
+0.1%
Added · +36K sh
Q1 2026
2BlackRock, Inc.
$617.6M
16.0M
+24%
Added · +3.1M sh
Q1 2026
3DEERFIELD MANAGEMENT COMPANY, L.P.
$348.1M
9.0M
Held
Q1 2026
4VANGUARD PORTFOLIO MANAGEMENT LLC
$282.3M
7.3M
First observed position
No prior filed position
Q1 2026
5STATE STREET CORP
$269.5M
7.0M
+23%
Added · +1.3M sh
Q2 2026
6VANGUARD CAPITAL MANAGEMENT LLC
$265.4M
6.9M
First observed position
No prior filed position
Q1 2026
7JANUS HENDERSON GROUP PLC
$229.6M
6.0M
+31%
Added · +1.4M sh
Q1 2026
8Fairmount Funds Management LLC
$213.0M
5.5M
Held
Q2 2026
9TCG Crossover Management, LLC
$190.4M
4.9M
−16%
Reduced · −921K sh
Q1 2026
10GEODE CAPITAL MANAGEMENT, LLC
$174.5M
4.5M
+22%
Added · +809K sh
Q2 2026
11GOLDMAN SACHS GROUP INC
$170.7M
4.4M
+160%
Added · +2.7M sh
Q1 2026
12Kynam Capital Management, LP
$155.4M
4.0M
−35%
Reduced · −2.1M sh
Q1 2026
13Polar Capital Holdings Plc
$125.1M
3.2M
New
+3.2M sh
Q2 2026
14PRICE T ROWE ASSOCIATES INC /MD/
$123.7M
3.2M
+25%
Added · +649K sh
Q1 2026
15Commodore Capital LP
$111.2M
2.9M
+31%
Added · +691K sh
Q1 2026
16Octagon Capital Advisors LP
$90.5M
2.4M
Held
Q1 2026
17RTW INVESTMENTS, LP
$89.4M
2.3M
−58%
Reduced · −3.1M sh
Q2 2026
18Holocene Advisors, LP
$86.6M
2.3M
+91%
Added · +1.1M sh
Q1 2026
19Candriam S.C.A.
$80.7M
2.1M
+38%
Added · +572K sh
Q2 2026
20Venrock Adviser, LLC
$77.0M
2.0M
Held
Q1 2026
21D. E. Shaw & Co., Inc.
$71.9M
1.9M
−17%
Reduced · −379K sh
Q1 2026
22Siren, L.L.C.
$72.0M
1.9M
+8.8%
Added · +150K sh
Q2 2026
23Pictet Asset Management Holding SA
$68.8M
1.8M
16×
Added · +1.7M sh
Q1 2026
24CITADEL ADVISORS LLC
$66.0M
1.7M
+19%
Added · +276K sh
Q1 2026
25EMERALD ADVISERS, LLC
$62.0M
1.6M
+0.9%
Added · +15K sh
Q2 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 COGT being bought or sold by institutions?

Last quarter, 9 funds opened a new position in COGT and 33 added to an existing one, while 28 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)
9
funds
Added
33
funds
Reduced
28
funds
Exited
0
funds

Funds that own COGT also own

CompanyCo-held byCombined value
ELI LILLY & COLLY154 funds$73.1B
AMAZON.COM INCAMZN153 funds$183.8B
META PLATFORMS INC-CLASS AMETA146 funds$104.1B
NVIDIA CORPNVDA144 funds$367.2B
INTUITIVE SURGICAL INCISRG144 funds$25.4B
MICROSOFT CORPMSFT143 funds$246.7B
ALPHABET INC-CL AGOOGL142 funds$158.1B
BROADCOM INCAVGO142 funds$142.0B
MICRON TECHNOLOGY INCMU138 funds$37.4B
APPLE INCAAPL137 funds$274.4B
BOSTON SCIENTIFIC CORPBSX137 funds$14.8B
UNITEDHEALTH GROUP INCUNH136 funds$26.5B

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

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$244.3M
2 insiders
Net
-$244.3M
3 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Aug 27, 2026Morris ArleneDirectorSell (S)3K$119K
Aug 27, 2026Morris ArleneDirectorSell (S)42K$1.6M
Mar 31, 2026Fairmount Funds Management LLCDirectorSell (S)7.0M$242.6M
Jan 22, 2026Fairmount Funds Management LLCDirectorSell (S)3.5M$127.4M
Dec 26, 2025Robinson John EdwardChief Scientific OfficerSell (S)90K$3.5M
Dec 26, 2025Sachs JessicaChief Medical OfficerSell (S)83K$3.2M
Dec 26, 2025Green John L.Chief Financial OfficerSell (S)77K$3.0M
Dec 26, 2025Kearns EvanChief Legal OfficerSell (S)65K$2.5M
Jul 10, 2025Fairmount Funds Management LLCDirectorBuy (P)2.8M$25.0M
Jan 14, 2025Pinnow ColeChief Commercial OfficerBuy (P)44K$333K
Jun 9, 2023Fairmount Funds Management LLC10% OwnerBuy (P)800K$9.6M
Jun 16, 2022Fairmount Funds Management LLC10% OwnerBuy (P)1.2M$9.9M

Institutional ownership over time

125 funds+7 since Q3 2024
0133266Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $1.6B · 2 values withheld

Share classes

Class13F holdersValue held
COGTthis pagecs277 funds$6.7B
COGT 1.625 11/15/31SDBCV21 funds$217.0M

Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.

Recent filings

15 shown

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Connected entities for COGT

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Ask your agent what changed in COGT

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/COGT/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for COGT.
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 COGT. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.