FBRX US Equity

Forte Biosciences, Inc.

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Health Care · Pharmaceutical Preparations · CIK 1419041 · FYE 1231

$76.53

-0.12 (-0.16%)

USD · as of 2026-07-29 · marketstack

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Institutional ownership· 13F filers holding FBRX · 2026-Q1 methodology → sources →

68 holders

% of shares outstanding held

97.8%

Shares held (13F)

13,579,060

Reporting holders

Top holders

largest 68 of 68 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	FEDERATED HERMES, INC.	1,765,5161.8M	$46M	12.71%	—
2	FRED ALGER MANAGEMENT, LLC	1,273,9651.3M	$33M	9.17%	TRIM -13%
3	ORBIMED ADVISORS LLC	1,196,9551.2M	$31M	8.62%	—
4	JANUS HENDERSON GROUP PLC	1,188,0601.2M	$31M	8.56%	TRIM -17%
5	Affinity Asset Advisors, LLC	1,011,8901.0M	$26M	7.29%	ADD 2%
6	MPM BIOIMPACT LLC	1,000,6821.0M	$26M	7.21%	NEW†
7	ADAGE CAPITAL PARTNERS GP, L.L.C.	950,000950,000	$25M	6.84%	ADD 185%
8	VANGUARD CAPITAL MANAGEMENT LLC	531,692531,692	$14M	3.83%	NEW†
9	MORGAN STANLEY	500,298500,298	$13M	3.60%	ADD 609%
10	Cable Car Capital, LP	400,000400,000	$10M	2.88%	—
11	FMR LLC	340,695340,695	$9M	2.45%	ADD 10%
12	MILLENNIUM MANAGEMENT LLC	337,983337,983	$9M	2.43%	ADD 37%
13	Woodline Partners LP	331,987331,987	$9M	2.39%	—
14	CITADEL ADVISORS LLC	233,369233,369	$6M	1.68%	NEW
15	AWM Investment Company, Inc.	200,000200,000	$5M	1.44%	TRIM -16%
16	SPHERA FUNDS MANAGEMENT LTD.	184,984184,984	$5M	1.33%	—
17	MARSHALL WACE, LLP	150,307150,307	$4M	1.08%	ADD 314%
18	Integral Health Asset Management, LLC	150,000150,000	$4M	1.08%	NEW
19	SUSQUEHANNA INTERNATIONAL GROUP, LLP	133,494133,494	$3M	0.96%	ADD 152%
20	GEODE CAPITAL MANAGEMENT, LLC	125,442125,442	$3M	0.90%	—
21	Ikarian Capital, LLC	118,972118,972	$3M	0.86%	TRIM -60%
22	STEMPOINT CAPITAL LP	116,040116,040	$3M	0.84%	NEW
23	LORD, ABBETT & CO. LLC	114,635114,635	$3M	0.83%	NEW
24	AMERIPRISE FINANCIAL INC	111,788111,788	$3M	0.81%	TRIM -27%
25	Russell Investments Group, Ltd.	91,77291,772	$2M	0.66%	NEW
26	Qube Research & Technologies Ltd	85,96985,969	$2M	0.62%	ADD 167%
27	Candriam S.C.A.	84,80384,803	$2M	0.61%	NEW
28	Trexquant Investment LP	73,65173,651	$2M	0.53%	ADD 470%
29	VANGUARD FIDUCIARY TRUST CO	72,09572,095	$2M	0.52%	NEW
30	BlackRock, Inc.	65,92165,921	$2M	0.47%	ADD 2%
31	JANE STREET GROUP, LLC	57,93357,933	$2M	0.42%	ADD 594%
32	STATE STREET CORP	54,82154,821	$1M	0.39%	ADD 8%
33	J. Goldman & Co LP	54,17454,174	$1M	0.39%	TRIM -11%
34	GOLDMAN SACHS GROUP INC	53,47353,473	$1M	0.39%	TRIM -21%
35	WELLINGTON MANAGEMENT GROUP LLP	29,49129,491	$763,817	0.21%	NEW
36	ENVESTNET ASSET MANAGEMENT INC	28,69728,697	$743,252	0.21%	ADD 47%
37	MANGROVE PARTNERS IM, LLC	25,70625,706	$665,785	0.19%	NEW
38	Weil Company, Inc.	24,76524,765	$641,414	0.18%	NEW
39	NORTHERN TRUST CORP	23,71223,712	$614,141	0.17%	TRIM -7%
40	BANK OF AMERICA CORP /DE/	21,60621,606	$559,595	0.16%	ADD 444%
41	Squarepoint Ops LLC	20,75520,755	$537,555	0.15%	NEW
42	UBS Group AG	20,45020,450	$529,655	0.15%	TRIM -18%
43	683 Capital Management, LLC	20,00020,000	$518,000	0.14%	TRIM -50%
44	Hudson Bay Capital Management LP	19,08319,083	$494,250	0.14%	ADD 15%
45	Balyasny Asset Management L.P.	18,71718,717	$484,770	0.13%	NEW
46	Quadrature Capital Ltd	18,62218,622	$482,310	0.13%	ADD 6%
47	Engineers Gate Manager LP	16,42716,427	$425,459	0.12%	NEW
48	Jain Global LLC	15,59715,597	$403,962	0.11%	TRIM -92%
49	TWO SIGMA INVESTMENTS, LP	15,50915,509	$401,683	0.11%	TRIM -51%
50	Brevan Howard Capital Management LP	14,02014,020	$363,118	0.10%	NEW
51	ExodusPoint Capital Management, LP	13,74713,747	$356,047	0.10%	ADD 24%
52	ROYAL BANK OF CANADA	13,38913,389	$346,000	0.10%	ADD 12%
53	BARCLAYS PLC	13,26813,268	$343,641	0.10%	TRIM -45%
54	AMERICAN CENTURY COMPANIES INC	12,69912,699	$328,904	0.09%	ADD 57%
55	ALPS ADVISORS INC	10,20010,200	$264,180	0.07%	—
56	Persistent Asset Partners Ltd	6,7446,744	$174,670	0.05%	TRIM -34%
57	Vanguard Global Advisers, LLC	4,5004,500	$116,550	0.03%	NEW
58	BNP PARIBAS FINANCIAL MARKETS	3,4363,436	$88,992	0.02%	TRIM -78%
59	SIMPLEX TRADING, LLC	2,3122,312	$59,880	0.02%	TRIM -62%
60	WELLS FARGO & COMPANY/MN	502502	$13,002	0.00%	—
61	FIFTH THIRD BANCORP	496496	$12,846	0.00%	NEW
62	Steward Partners Investment Advisory, LLC	493493	$12,769	0.00%	TRIM -11%
63	NATIONAL BANK OF CANADA /FI/	478478	$12,380	0.00%	ADD 529%
64	GROUP ONE TRADING LLC	204204	$5,284	0.00%	—
65	ASSETMARK, INC	4646	$1,191	0.00%	TRIM -21%
66	SBI Securities Co., Ltd.	1212	$311	0.00%	—
67	JPMORGAN CHASE & CO	88	$211	0.00%	NEW
68	REAP Financial Group, LLC	33	$78	0.00%	—

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

FEDERATED HERMES, INC.

—

1.1M

1.6M

1.8M

$46M

FRED ALGER MANAGEMENT, LLC

1.1M

911K

1.6M

1.5M

1.3M

$33M

ORBIMED ADVISORS LLC

600K

593K

1.2M

$31M

JANUS HENDERSON GROUP PLC

—

920K

1.4M

1.2M

$31M

Affinity Asset Advisors, LLC

—

989K

1.0M

$26M

MPM BIOIMPACT LLC

—

1.0M

$26M

ADAGE CAPITAL PARTNERS GP, L.L.C.

—

333K

950K

$25M

VANGUARD CAPITAL MANAGEMENT LLC

—

532K

$14M

MORGAN STANLEY

151

71K

500K

$13M

Cable Car Capital, LP

220K

500K

400K

$10M

FMR LLC

—

244K

311K

341K

$9M

MILLENNIUM MANAGEMENT LLC

—

15K

72K

120K

247K

338K

$9M

Woodline Partners LP

204K

205K

332K

$9M

CITADEL ADVISORS LLC

—

16K

—

233K

$6M

AWM Investment Company, Inc.

—

137K

262K

237K

200K

$5M

Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	68	13,579,060	97.8%	$352M
2025-Q4	59	11,522,905	83.0%	$315M
2025-Q3	42	10,343,866	74.5%	$155M
2025-Q2	34	10,080,834	72.6%	$131M
2025-Q1	30	5,171,324	37.2%	$40M
2024-Q4	26	4,275,837	30.8%	$97M
2024-Q3	24	736,634	5.3%	$4M
2024-Q2	34	19,068,646	—	$10M

Short interest has its own tab now — open SI →

Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.

Activists & large holders· Schedule 13D/G beneficial owners · FBRX

Large holders — 13G, passive (top 3 by % of class)

Holder	% of class	Type	As of
FEDERATED HERMES, INC.	10.31%	QII	2026-06-30	SEC →
BlackRock, Inc.	5.9%	QII	2026-06-30	SEC →
MILLENNIUM MANAGEMENT LLC	3.2%	Passive	2026-06-30	SEC →

Source: SEC Schedule 13D/13G structured XML. 13D = active intent; 13G filers report passively (Rule 13d-1(b) QII / 13d-1(c) Passive / 13d-1(d) Exempt) and are not activists. Percent and delta are the group aggregate the filing reports. Structured 13D/G coverage begins December 2024 (SEC XML mandate).

Institutional ownership· 13F filers holding FBRX · 2026-Q1 methodology → sources →

68 holders

% of shares outstanding held

97.8%

Shares held (13F)

13,579,060

Reporting holders

Top holders

largest 68 of 68 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	FEDERATED HERMES, INC.	1,765,5161.8M	$46M	12.71%	—
2	FRED ALGER MANAGEMENT, LLC	1,273,9651.3M	$33M	9.17%	TRIM -13%
3	ORBIMED ADVISORS LLC	1,196,9551.2M	$31M	8.62%	—
4	JANUS HENDERSON GROUP PLC	1,188,0601.2M	$31M	8.56%	TRIM -17%
5	Affinity Asset Advisors, LLC	1,011,8901.0M	$26M	7.29%	ADD 2%
6	MPM BIOIMPACT LLC	1,000,6821.0M	$26M	7.21%	NEW†
7	ADAGE CAPITAL PARTNERS GP, L.L.C.	950,000950,000	$25M	6.84%	ADD 185%
8	VANGUARD CAPITAL MANAGEMENT LLC	531,692531,692	$14M	3.83%	NEW†
9	MORGAN STANLEY	500,298500,298	$13M	3.60%	ADD 609%
10	Cable Car Capital, LP	400,000400,000	$10M	2.88%	—
11	FMR LLC	340,695340,695	$9M	2.45%	ADD 10%
12	MILLENNIUM MANAGEMENT LLC	337,983337,983	$9M	2.43%	ADD 37%
13	Woodline Partners LP	331,987331,987	$9M	2.39%	—
14	CITADEL ADVISORS LLC	233,369233,369	$6M	1.68%	NEW
15	AWM Investment Company, Inc.	200,000200,000	$5M	1.44%	TRIM -16%
16	SPHERA FUNDS MANAGEMENT LTD.	184,984184,984	$5M	1.33%	—
17	MARSHALL WACE, LLP	150,307150,307	$4M	1.08%	ADD 314%
18	Integral Health Asset Management, LLC	150,000150,000	$4M	1.08%	NEW
19	SUSQUEHANNA INTERNATIONAL GROUP, LLP	133,494133,494	$3M	0.96%	ADD 152%
20	GEODE CAPITAL MANAGEMENT, LLC	125,442125,442	$3M	0.90%	—
21	Ikarian Capital, LLC	118,972118,972	$3M	0.86%	TRIM -60%
22	STEMPOINT CAPITAL LP	116,040116,040	$3M	0.84%	NEW
23	LORD, ABBETT & CO. LLC	114,635114,635	$3M	0.83%	NEW
24	AMERIPRISE FINANCIAL INC	111,788111,788	$3M	0.81%	TRIM -27%
25	Russell Investments Group, Ltd.	91,77291,772	$2M	0.66%	NEW
26	Qube Research & Technologies Ltd	85,96985,969	$2M	0.62%	ADD 167%
27	Candriam S.C.A.	84,80384,803	$2M	0.61%	NEW
28	Trexquant Investment LP	73,65173,651	$2M	0.53%	ADD 470%
29	VANGUARD FIDUCIARY TRUST CO	72,09572,095	$2M	0.52%	NEW
30	BlackRock, Inc.	65,92165,921	$2M	0.47%	ADD 2%
31	JANE STREET GROUP, LLC	57,93357,933	$2M	0.42%	ADD 594%
32	STATE STREET CORP	54,82154,821	$1M	0.39%	ADD 8%
33	J. Goldman & Co LP	54,17454,174	$1M	0.39%	TRIM -11%
34	GOLDMAN SACHS GROUP INC	53,47353,473	$1M	0.39%	TRIM -21%
35	WELLINGTON MANAGEMENT GROUP LLP	29,49129,491	$763,817	0.21%	NEW
36	ENVESTNET ASSET MANAGEMENT INC	28,69728,697	$743,252	0.21%	ADD 47%
37	MANGROVE PARTNERS IM, LLC	25,70625,706	$665,785	0.19%	NEW
38	Weil Company, Inc.	24,76524,765	$641,414	0.18%	NEW
39	NORTHERN TRUST CORP	23,71223,712	$614,141	0.17%	TRIM -7%
40	BANK OF AMERICA CORP /DE/	21,60621,606	$559,595	0.16%	ADD 444%
41	Squarepoint Ops LLC	20,75520,755	$537,555	0.15%	NEW
42	UBS Group AG	20,45020,450	$529,655	0.15%	TRIM -18%
43	683 Capital Management, LLC	20,00020,000	$518,000	0.14%	TRIM -50%
44	Hudson Bay Capital Management LP	19,08319,083	$494,250	0.14%	ADD 15%
45	Balyasny Asset Management L.P.	18,71718,717	$484,770	0.13%	NEW
46	Quadrature Capital Ltd	18,62218,622	$482,310	0.13%	ADD 6%
47	Engineers Gate Manager LP	16,42716,427	$425,459	0.12%	NEW
48	Jain Global LLC	15,59715,597	$403,962	0.11%	TRIM -92%
49	TWO SIGMA INVESTMENTS, LP	15,50915,509	$401,683	0.11%	TRIM -51%
50	Brevan Howard Capital Management LP	14,02014,020	$363,118	0.10%	NEW
51	ExodusPoint Capital Management, LP	13,74713,747	$356,047	0.10%	ADD 24%
52	ROYAL BANK OF CANADA	13,38913,389	$346,000	0.10%	ADD 12%
53	BARCLAYS PLC	13,26813,268	$343,641	0.10%	TRIM -45%
54	AMERICAN CENTURY COMPANIES INC	12,69912,699	$328,904	0.09%	ADD 57%
55	ALPS ADVISORS INC	10,20010,200	$264,180	0.07%	—
56	Persistent Asset Partners Ltd	6,7446,744	$174,670	0.05%	TRIM -34%
57	Vanguard Global Advisers, LLC	4,5004,500	$116,550	0.03%	NEW
58	BNP PARIBAS FINANCIAL MARKETS	3,4363,436	$88,992	0.02%	TRIM -78%
59	SIMPLEX TRADING, LLC	2,3122,312	$59,880	0.02%	TRIM -62%
60	WELLS FARGO & COMPANY/MN	502502	$13,002	0.00%	—
61	FIFTH THIRD BANCORP	496496	$12,846	0.00%	NEW
62	Steward Partners Investment Advisory, LLC	493493	$12,769	0.00%	TRIM -11%
63	NATIONAL BANK OF CANADA /FI/	478478	$12,380	0.00%	ADD 529%
64	GROUP ONE TRADING LLC	204204	$5,284	0.00%	—
65	ASSETMARK, INC	4646	$1,191	0.00%	TRIM -21%
66	SBI Securities Co., Ltd.	1212	$311	0.00%	—
67	JPMORGAN CHASE & CO	88	$211	0.00%	NEW
68	REAP Financial Group, LLC	33	$78	0.00%	—

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

FEDERATED HERMES, INC.

—

1.1M

1.6M

1.8M

$46M

FRED ALGER MANAGEMENT, LLC

1.1M

911K

1.6M

1.5M

1.3M

$33M

ORBIMED ADVISORS LLC

600K

593K

1.2M

$31M

JANUS HENDERSON GROUP PLC

—

920K

1.4M

1.2M

$31M

Affinity Asset Advisors, LLC

—

989K

1.0M

$26M

MPM BIOIMPACT LLC

—

1.0M

$26M

ADAGE CAPITAL PARTNERS GP, L.L.C.

—

333K

950K

$25M

VANGUARD CAPITAL MANAGEMENT LLC

—

532K

$14M

MORGAN STANLEY

151

71K

500K

$13M

Cable Car Capital, LP

220K

500K

400K

$10M

FMR LLC

—

244K

311K

341K

$9M

MILLENNIUM MANAGEMENT LLC

—

15K

72K

120K

247K

338K

$9M

Woodline Partners LP

204K

205K

332K

$9M

CITADEL ADVISORS LLC

—

16K

—

233K

$6M

AWM Investment Company, Inc.

—

137K

262K

237K

200K

$5M

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	68	13,579,060	97.8%	$352M
2025-Q4	59	11,522,905	83.0%	$315M
2025-Q3	42	10,343,866	74.5%	$155M
2025-Q2	34	10,080,834	72.6%	$131M
2025-Q1	30	5,171,324	37.2%	$40M
2024-Q4	26	4,275,837	30.8%	$97M
2024-Q3	24	736,634	5.3%	$4M
2024-Q2	34	19,068,646	—	$10M

Short interest has its own tab now — open SI →

Activists & large holders· Schedule 13D/G beneficial owners · FBRX

Large holders — 13G, passive (top 3 by % of class)

Holder	% of class	Type	As of
FEDERATED HERMES, INC.	10.31%	QII	2026-06-30	SEC →
BlackRock, Inc.	5.9%	QII	2026-06-30	SEC →
MILLENNIUM MANAGEMENT LLC	3.2%	Passive	2026-06-30	SEC →

FBRX US Equity☆

Institutional ownership· 13F filers holding FBRX · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · FBRX

Institutional ownership· 13F filers holding FBRX · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · FBRX

FBRX US Equity