PHAT

Phathom Pharmaceuticals Inc$10.97 0.72%
Health CareUSCUSIP 71722W107· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
143
+5 QoQ
13F Value (tracked)
$521.1M
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
15
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)31 adding · 15 trimming
Insider net (180d)$0

Price & smart-money activity

$10.97 0.72%5Y -67.2%
$2.21$11.34$20.46$29.59$38.72202120222023202420252026277121313131041610141626172121332231022103321132213191813327822623530208232826183627463126
Hover for who · click for detailEnd-of-day closing prices52w $7.83 – $18.08

Top institutional holders

143 tracked 13F filers
#FundPosition valueSharesLast moveAs ofHistory
1Frazier Life Sciences Management, L.P.
$138.5M
12.5M
Held
Q1 2026
2BlackRock, Inc.
$45.1M
4.1M
+14%
Added · +506K sh
Q1 2026
3MILLENNIUM MANAGEMENT LLC
$44.7M
4.0M
+93%
Added · +1.9M sh
Q1 2026
4VANGUARD CAPITAL MANAGEMENT LLC
$28.7M
2.6M
New
+2.6M sh
Q1 2026
5NEA Management Company, LLC
$21.8M
2.0M
Held
Q1 2026
6683 Capital Management, LLC
$20.6M
1.9M
+3.6%
Added · +65K sh
Q1 2026
7Ensign Peak Advisors, Inc
$18.1M
1.6M
−31%
Reduced · −724K sh
Q1 2026
8STATE STREET CORP
$15.4M
1.4M
+21%
Added · +237K sh
Q1 2026
9GEODE CAPITAL MANAGEMENT, LLC
$14.8M
1.3M
+24%
Added · +255K sh
Q1 2026
10WASATCH ADVISORS LP
$14.2M
1.3M
−2.5%
Reduced · −34K sh
Q2 2026
11FRANKLIN RESOURCES INC
$11.0M
995K
New
+995K sh
Q1 2026
12PERCEPTIVE ADVISORS LLC
$10.3M
925K
New
+925K sh
Q1 2026
13MARSHALL WACE, LLP
$9.6M
861K
New
+861K sh
Q1 2026
14VANGUARD PORTFOLIO MANAGEMENT LLC
$7.4M
666K
New
+666K sh
Q1 2026
15GOLDMAN SACHS GROUP INC
$7.0M
626K
+60%
Added · +234K sh
Q1 2026
16EcoR1 Capital, LLC
$6.9M
625K
New
+625K sh
Q1 2026
17TWO SIGMA INVESTMENTS, LP
$5.4M
482K
+734%
Added · +424K sh
Q1 2026
18StepStone Group LP
$4.7M
422K
Held
Q1 2026
19NORTHERN TRUST CORP
$4.6M
415K
+16%
Added · +58K sh
Q1 2026
20CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$4.5M
409K
+2.8%
Added · +11K sh
Q1 2026
21CITADEL ADVISORS LLC
$4.3M
383K
+23%
Added · +72K sh
Q1 2026
22Woodline Partners LP
$4.1M
369K
+97%
Added · +182K sh
Q1 2026
23UBS Group AG
$4.0M
360K
+18%
Added · +56K sh
Q1 2026
24VANGUARD FIDUCIARY TRUST CO
$3.8M
339K
New
+339K sh
Q1 2026
25Hennion & Walsh Asset Management, Inc.
$3.6M
327K
+124%
Added · +181K 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.

Fund activity: latest quarter

Opened (NEW)
12
funds
Added
19
funds
Reduced
15
funds
Exited
0
funds

Funds that own PHAT also own

CompanyCo-held byCombined value
ELI LILLY & COLLY51 funds$5.8B
BOSTON SCIENTIFIC CORPBSX51 funds$1.6B
NVIDIA CORPNVDA50 funds$32.9B
MICROSOFT CORPMSFT50 funds$22.2B
AMAZON.COM INCAMZN50 funds$16.1B
UNITEDHEALTH GROUP INCUNH50 funds$2.5B
INTUITIVE SURGICAL INCISRG50 funds$2.2B
CITIGROUP INCC50 funds$2.1B
DANAHER CORPDHR50 funds$1.2B
BLACKSTONE INCBX50 funds$805.8M
ROBINHOOD MARKETS INC - AHOOD50 funds$468.1M
ALPHABET INC-CL AGOOGL49 funds$14.4B

Ranked by how many of PHAT'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
$0
0 insiders
Net
$0
0 P/S txns
Signal
Mixed
open-market
DateInsiderRoleActionSharesValue
Nov 3, 2025Breedlove Robert CharlesPrincipal Accounting OfficerSell (S)524$7K
Sep 5, 2025Breedlove Robert CharlesPrincipal Accounting OfficerSell (S)461$6K
Jul 16, 2025Breedlove Robert CharlesPrincipal Accounting OfficerSell (S)2K$14K
May 21, 2025Topper James NDirectorBuy (P)4K$15K
May 14, 2025Topper James NDirectorBuy (P)6K$21K
May 13, 2025Topper James NDirectorBuy (P)1K$4K
May 12, 2025Topper James NDirectorBuy (P)13K$38K
May 9, 2025Topper James NDirectorBuy (P)2K$8K
May 9, 2025Topper James NDirectorBuy (P)33K$106K
May 7, 2025Parikh AsitDirectorBuy (P)5K$12K
May 6, 2025Parikh AsitDirectorBuy (P)5K$13K
Apr 7, 2025Henderson MollyCFO and CBOSell (S)4K$17K

Institutional ownership over time

143 funds+49 since Q3 2024
072143Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $519.5M

Recent filings

15 shown

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Ask your agent what changed in PHAT

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.

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  "https://arkolith.com/api/v1/stocks/PHAT/capital-change-brief"
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Use Arkolith's capital_change_brief for PHAT.
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 PHAT. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.