Phathom Pharmaceuticals, Inc. (PHAT) — Institutional Holders, Q2 2026

162 institutional investment managers reported a PHAT position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $781.5M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← PHAT stock profile

PHAT in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

Trimmed

Sold out

Biggest buyers

GOLDMAN SACHS GROUPAdded · +1,151,836 sh+$12.5M
Point72 Asset Management, L.P.New · +1,022,193 sh+$11.1M
FRANKLIN RESOURCESAdded · +976,324 sh+$10.6M
GW&K Investment ManagementAdded · +745,729 sh+$8.1M
HSBC PLCNew · +709,695 sh+$7.7M

Biggest sellers

MILLENNIUM MANAGEMENTTrimmed · -647,075 sh-$7.0M
Ensign Peak AdvisorsTrimmed · -575,893 sh-$6.2M
PERCEPTIVE ADVISORSTrimmed · -393,000 sh-$4.3M
Invesco Ltd.Trimmed · -292,329 sh-$3.2M
Susquehanna Portfolio StrategiesSold out · -267,962 sh-$2.9M

PHAT 13F holders ranked 1–100 of 162

Institutional investors reporting a position in Phathom Pharmaceuticals, Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	Frazier Life Sciences Management, L.P.#1 · 12,466,489 sh	12,466,489	$135.3M	2.95%	0.0%
2	Medicxi Ventures Management (Jersey) Ltd#2 · 7,464,572 sh	7,464,572	$81.0M	45.65%	0.0%
3	BlackRock#3 · 4,525,129 sh	4,525,129	$49.1M	<0.01%	+11.4%
4	Invesco Ltd.#4 · 4,029,731 sh	4,029,731	$43.7M	<0.01%	-6.8%
5	Carlyle Group#5 · 3,496,808 sh	3,496,808	$37.9M	0.38%	0.0%
6	MILLENNIUM MANAGEMENT#6 · 3,375,834 sh	3,375,834	$36.6M	0.01%	-16.1%
7	VANGUARD CAPITAL MANAGEMENT#7 · 2,656,944 sh	2,656,944	$28.8M	<0.01%	+2.8%
8	GW&K Investment Management#8 · 2,166,838 sh	2,166,838	$23.5M	0.18%	+52.5%
9	FRANKLIN RESOURCES#9 · 1,970,828 sh	1,970,828	$21.4M	<0.01%	+98.2%
10	NEA Management Company#10 · 1,960,169 sh	1,960,169	$21.3M	1.34%	0.0%
11	683 Capital Management#11 · 1,850,000 sh	1,850,000	$20.1M	0.99%	0.0%
12	GOLDMAN SACHS GROUP#12 · 1,778,032 sh	1,778,032	$19.3M	<0.01%	+183.9%
13	STATE STREET#13 · 1,586,323 sh	1,586,323	$17.2M	<0.01%	+14.4%
14	Catalys Pacific#14 · 1,493,854 sh	1,493,854	$16.2M	7.06%	0.0%
15	NOMURA ASSET MANAGEMENT INTERNATIONAL#15 · 1,462,738 sh	1,462,738	$15.9M	0.02%	+21.4%
16	GEODE CAPITAL MANAGEMENT#16 · 1,315,687 sh	1,315,687	$14.3M	<0.01%	-0.9%
17	WASATCH ADVISORS#17 · 1,307,247 sh	1,307,247	$14.2M	—	-2.5%
18	Ensign Peak Advisors#18 · 1,051,913 sh	1,051,913	$11.4M	0.02%	-35.4%
19	Propel Bio Management#19 · 1,050,358 sh	1,050,358	$11.4M	5.96%	+24.9%
20	Point72 Asset Management, L.P.#20 · 1,022,193 sh	1,022,193	$11.1M	0.01%	New
21	VANGUARD PORTFOLIO MANAGEMENT#21 · 796,631 sh	796,631	$8.6M	<0.01%	+19.6%
22	SummitTX Capital, L.P.#22 · 789,550 sh	789,550	$8.6M	0.22%	-20.7%
23	HSBC PLC#23 · 709,695 sh	709,695	$7.7M	<0.01%	New
24	MARSHALL WACE, LLP#24 · 666,090 sh	666,090	$7.2M	<0.01%	-22.6%
25	EcoR1 Capital#25 · 625,000 sh	625,000	$6.8M	0.33%	0.0%
26	PERCEPTIVE ADVISORS#26 · 532,000 sh	532,000	$5.8M	0.09%	-42.5%
27	TWO SIGMA INVESTMENTS#27 · 519,076 sh	519,076	$5.6M	<0.01%	+7.7%
28	NORTHERN#28 · 458,301 sh	458,301	$5.0M	<0.01%	+10.4%
29	StepStone Group#29 · 422,085 sh	422,085	$4.6M	0.21%	0.0%
30	CHARLES SCHWAB INVESTMENT MANAGEMENT#30 · 419,094 sh	419,094	$4.5M	<0.01%	+2.5%
31	Woodline Partners#31 · 369,052 sh	369,052	$4.0M	0.01%	0.0%
32	VANGUARD FIDUCIARY#32 · 354,573 sh	354,573	$3.8M	<0.01%	+4.7%
33	Hennion & Walsh Asset Management#33 · 327,278 sh	327,278	$3.6M	—	+124.3%
34	AMERIPRISE FINANCIAL#34 · 293,979 sh	293,979	$3.2M	<0.01%	+15.6%
35	JPMORGAN CHASE#35 · 275,251 sh	275,251	$3.0M	<0.01%	-4.2%
36	Simplify Asset Management#36 · 249,267 sh	249,267	$2.7M	0.04%	-5.0%
37	RENAISSANCE TECHNOLOGIES#37 · 226,400 sh	226,400	$2.5M	<0.01%	-26.0%
38	JANE STREET GROUP#38 · 212,706 sh	212,706	$2.3M	<0.01%	New
39	UBS Group AG#39 · 204,573 sh	204,573	$2.2M	<0.01%	-43.2%
40	NewEdge Advisors#40 · 203,962 sh	203,962	$2.2M	<0.01%	+11.5%
41	Avidity Partners Management#41 · 200,000 sh	200,000	$2.2M	0.35%	-19.8%
42	MORGAN STANLEY#42 · 199,909 sh	199,909	$2.2M	<0.01%	+160.7%
43	Jump Financial#43 · 191,866 sh	191,866	$2.1M	0.02%	+625.5%
44	Opaleye Management#44 · 185,589 sh	185,589	$2.0M	0.18%	New
45	CITADEL ADVISORS#45 · 184,901 sh	184,901	$2.0M	<0.01%	-51.7%
46	Trexquant Investment#46 · 173,884 sh	173,884	$1.9M	0.01%	-40.7%
47	Jones Hill Capital#47 · 161,486 sh	161,486	$1.8M	0.37%	New
48	Bank of New York Mellon#48 · 152,313 sh	152,313	$1.7M	<0.01%	+22.8%
49	WELLS FARGO & COMPANY#49 · 152,002 sh	152,002	$1.6M	<0.01%	+229.6%
50	BANK OF AMERICA#50 · 151,015 sh	151,015	$1.6M	<0.01%	-27.4%
51	XTX Topco Ltd#51 · 135,832 sh	135,832	$1.5M	0.02%	-15.4%
52	AQR CAPITAL MANAGEMENT#52 · 134,901 sh	134,901	$1.5M	<0.01%	+143.2%
53	WELLINGTON MANAGEMENT GROUP LLP#53 · 132,284 sh	132,284	$1.4M	<0.01%	+18.4%
54	DIADEMA PARTNERS#54 · 129,950 sh	129,950	$1.4M	0.18%	+137.8%
55	Nuveen#55 · 127,127 sh	127,127	$1.4M	<0.01%	+8.4%
56	Engineers Gate Manager#56 · 118,257 sh	118,257	$1.3M	0.02%	+60.1%
57	Virtus Investment Advisers#57 · 112,139 sh	112,139	$1.2M	0.28%	+93.4%
58	Russell Investments Group, Ltd.#58 · 102,754 sh	102,754	$1.1M	<0.01%	+19.9%
59	SCHRODER INVESTMENT MANAGEMENT GROUP#59 · 101,745 sh	101,745	$1.1M	<0.01%	New
60	Stratos Wealth Partners, LTD.#60 · 100,000 sh	100,000	$1.1M	0.01%	0.0%
61	Swiss National Bank#61 · 98,800 sh	98,800	$1.1M	<0.01%	+6.7%
62	D. E. Shaw#62 · 95,660 sh	95,660	$1.0M	<0.01%	-27.8%
63	GILDER GAGNON HOWE#63 · 88,134 sh	88,134	$956.3K	<0.01%	-37.0%
64	Stonepine Capital Management#64 · 85,010 sh	85,010	$922.4K	0.43%	+70.0%
65	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#65 · 77,316 sh	77,316	$838.9K	<0.01%	New
66	KBC Group NV#66 · 77,139 sh	77,139	$837.0K	—	0.0%
67	Campbell & Investment Adviser#67 · 68,759 sh	68,759	$746.0K	0.04%	+10.9%
68	PRICE T ROWE ASSOCIATES#68 · 65,722 sh	65,722	$714.0K	<0.01%	+25.3%
69	Penn Mutual Asset Management#69 · 62,802 sh	62,802	$681.4K	—	0.0%
70	STATE OF WISCONSIN INVESTMENT BOARD#70 · 62,283 sh	62,283	$675.8K	<0.01%	+41.5%
71	RHUMBLINE ADVISERS#71 · 60,346 sh	60,346	$654.7K	<0.01%	+8.9%
72	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#72 · 55,788 sh	55,788	$605.3K	<0.01%	0.0%
73	Birchview Capital#73 · 55,000 sh	55,000	$596.8K	0.28%	-71.8%
74	CITIGROUP#74 · 52,945 sh	52,945	$574.5K	<0.01%	+80.3%
75	STIFEL FINANCIAL#75 · 52,832 sh	52,832	$573.2K	<0.01%	-2.2%
76	Creative Planning#76 · 52,750 sh	52,750	$572.3K	<0.01%	-24.9%
77	ALLIANCEBERNSTEIN L.P.#77 · 49,290 sh	49,290	$547.6K	<0.01%	-0.2%
78	DEUTSCHE BANK AG\#78 · 50,205 sh	50,205	$544.7K	<0.01%	+37.7%
79	Pale Fire Capital SE#79 · 49,713 sh	49,713	$539.4K	0.04%	New
80	Man Group plc#80 · 48,679 sh	48,679	$528.2K	<0.01%	+60.4%
81	RAYMOND JAMES FINANCIAL#81 · 48,024 sh	48,024	$521.1K	<0.01%	+82.4%
82	Persistent Asset Partners Ltd#82 · 47,663 sh	47,663	$517.1K	0.15%	+78.1%
83	ADAR1 Capital Management#83 · 42,900 sh	42,900	$465.5K	0.02%	0.0%
84	Quantbot Technologies#84 · 42,755 sh	42,755	$463.9K	0.02%	New
85	BARCLAYS PLC#85 · 41,777 sh	41,777	$453.3K	<0.01%	+64.8%
86	NOMURA#86 · 40,000 sh	40,000	$434.0K	<0.01%	New
87	Y-Intercept (Hong Kong) Ltd#87 · 39,845 sh	39,845	$432.3K	—	New
88	FIDUCIARY#88 · 35,731 sh	35,731	$387.7K	<0.01%	+97.8%
89	ALLSTATE#89 · 32,875 sh	32,875	$356.7K	<0.01%	+0.6%
90	Legal & General Group Plc#90 · 32,738 sh	32,738	$355.2K	<0.01%	+2.2%
91	Squarepoint Ops#91 · 31,595 sh	31,595	$342.8K	<0.01%	-88.5%
92	GSA CAPITAL PARTNERS LLP#92 · 30,138 sh	30,138	$327.0K	0.02%	-69.0%
93	VANGUARD ASSET MANAGEMENT, Ltd#93 · 28,506 sh	28,506	$309.3K	<0.01%	0.0%
94	MetLife Investment Management#94 · 28,107 sh	28,107	$305.0K	<0.01%	+8.8%
95	Kera Capital Partners#95 · 26,826 sh	26,826	$291.1K	0.03%	0.0%
96	Zurcher Kantonalbank (Zurich Cantonalbank)#96 · 25,838 sh	25,838	$280.3K	<0.01%	+3.4%
97	MIRAE ASSET GLOBAL ETFS Ltd.#97 · 22,647 sh	22,647	$245.7K	<0.01%	+4.2%
98	COMMONWEALTH EQUITY SERVICES#98 · 22,535 sh	22,535	$244.5K	<0.01%	-30.1%
99	Summit Financial Wealth Advisors#99 · 22,143 sh	22,143	$240.3K	—	0.0%
100	WEALTH ENHANCEMENT ADVISORY SERVICES#100 · 18,731 sh	18,731	$236.2K	—	New

Funds that sold out of PHAT in Q2 2026 (32)

Held PHAT at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held PHAT in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Susquehanna Portfolio Strategies267,962 sh	267,962	$3.0M
Catalio Capital Management247,767 sh	247,767	$2.8M
BALYASNY ASSET MANAGEMENT L.P.95,301 sh	95,301	$1.1M
Freestone Grove Partners84,573 sh	84,573	$939.6K
HUSSMAN STRATEGIC ADVISORS84,000 sh	84,000	$933.2K
Burkehill Global Management75,000 sh	75,000	$833.3K
Aquatic Capital Management40,852 sh	40,852	$453.9K
ALGERT GLOBAL39,420 sh	39,420	$438.0K
VARCOV39,173 sh	39,173	$435.2K
TUDOR INVESTMENT ET AL38,225 sh	38,225	$424.7K
LOS ANGELES CAPITAL MANAGEMENT24,676 sh	24,676	$274.1K
DARK FOREST CAPITAL MANAGEMENT17,460 sh	17,460	$194.0K
LPL Financial17,207 sh	17,207	$191.2K
DRW Securities15,921 sh	15,921	$176.9K
Schonfeld Strategic Advisors15,614 sh	15,614	$173.5K
Bridgefront Capital14,954 sh	14,954	$166.1K
ExodusPoint Capital Management13,293 sh	13,293	$147.7K
Dynamic Technology Lab Private Ltd12,111 sh	12,111	$134.6K
Quadrature Capital Ltd12,078 sh	12,078	$134.2K
Quantinno Capital Management11,536 sh	11,536	$128.2K
PRIMORIS WEALTH ADVISORS11,449 sh	11,449	$127.2K
ProShare Advisors10,246 sh	10,246	$113.8K
QUADRANT CAPITAL GROUP2,182 sh	2,182	$61.1K
SUMMIT SECURITIES GROUP3,048 sh	3,048	$33.9K
C M BIDWELL & ASSOCIATES LTD590 sh	590	$6.6K
SIGNATUREFD239 sh	239	$2.7K
EverSource Wealth Advisors32 sh	32	$2.5K
Rachor Investment Advisory Services25 sh	25	$278.00
MAI Capital Management23 sh	23	$256.00
Root Financial Partners11 sh	11	$122.00
IFP Advisors1 sh	1	$11.00
Hughes Financial Services1 sh	1	$11.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.