TRAX · First Tracks Biotherapeutics, Inc. · Shareholders & Ownership

$50.00 +3.66 (+7.90%)

Russell 2000 member Rebalance outlook locked

Market Cap

$2.06B

42.02M

Volume · Nov 4 860.55K Avg daily vol (3M) 826.07K

Every disclosed holder of TRAX in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns TRAX

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	156	33,982,683	80.88%	Yes
Insiders (Forms 3, 4, 5)	0	0	0.00%	No
13D/G-only blocks	2	5,391,081	12.83%	Yes
Remaining	—	2,644,137	6.29%	Rest
Registered funds (N-PORT, not summed)	166	7,379,853	17.56%	No

Shares outstanding: 42,017,901, the issuer's latest cover-page count restated onto today's split basis.

Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of TRAX

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	EcoR1 Capital, LLC 13F CIK 1587114 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	3,174,519	7.56%	+3,174,519	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	EcoR1 Capital, LLC Insider CIK 1587114 · Apr 20, 2026 Director, 10% Owner, issuer-wide, not summed	3,174,519	7.56%	-4,705,575	Apr 20, 2026	Director, 10% Owner, issuer-wide, not summed
2	TCG Crossover GP II, LLC 13G CIK 1969280 · Unknown · Jun 30, 2026 Rule 13d-1(c), passive investor	2,895,304	6.89%	—	Jun 30, 2026	Rule 13d-1(c), passive investor
3	TCG Crossover Management, LLC 13F CIK 1839948 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	2,895,304	6.89%	+2,895,304	Jun 30, 2026	carried, not yet filed for the newest quarter
4	BlackRock, Inc. 13G CIK 2012383 · Holding company · Sep 30, 2026 Rule 13d-1(b), qualified institution, not summed	2,558,473	6.09%	+639,097	Sep 30, 2026	Rule 13d-1(b), qualified institution, not summed
4.1	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,963,541	4.67%	+1,963,541	Jun 30, 2026	carried, not yet filed for the newest quarter
4.2	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	607,976	1.45%	—	Jun 30, 2026	iShares Trust, not summed
4.3	iShares Russell 2000 Growth ETF Fund S000004343 · Registered fund · Jun 30, 2026 iShares Trust, not summed	150,721	0.36%	—	Jun 30, 2026	iShares Trust, not summed
4.4	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	78,487	0.19%	—	Jun 30, 2026	iShares Trust, not summed
4.5	iShares Russell 2000 Value ETF Fund S000004342 · Registered fund · Jun 30, 2026 iShares Trust, not summed	65,229	0.16%	—	Jun 30, 2026	iShares Trust, not summed
5	Sirenia Capital Management LP 13G CIK 2115022 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution	2,495,777	5.94%	—	Jun 30, 2026	Rule 13d-1(b), qualified institution
6	FMR LLC 13F CIK 315066 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	2,054,127	4.89%	+2,054,127	Jun 30, 2026	carried, not yet filed for the newest quarter
6.1	FMR LLC 13G CIK 315066 · Holding company · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	2,054,127	4.89%	—	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
6.2	Select Health Care Portfolio Fund S000007466 · Registered fund · Aug 31, 2026 Fidelity Select Portfolios, not summed	400,000	0.95%	0	Aug 31, 2026	Fidelity Select Portfolios, not summed
6.3	Fidelity Advisor Biotechnology Fund Fund S000005321 · Registered fund · Jul 31, 2026 Fidelity Advisor Series VII, not summed	341,150	0.81%	+192,750	Jul 31, 2026	Fidelity Advisor Series VII, not summed
6.4	Fidelity Small Cap Index Fund Fund S000033638 · Registered fund · Jul 31, 2026 Fidelity Salem Street Trust, not summed	255,152	0.61%	+75,527	Jul 31, 2026	Fidelity Salem Street Trust, not summed
6.5	Fidelity Advisor Health Care Fund Fund S000005329 · Registered fund · Jul 31, 2026 Fidelity Advisor Series VII, not summed	200,000	0.48%	—	Jul 31, 2026	Fidelity Advisor Series VII, not summed
7	Affinity Asset Advisors, LLC 13F CIK 1773195 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,032,012	4.84%	+2,032,012	Jun 30, 2026	carried, not yet filed for the newest quarter
7.1	Affinity Asset Advisors, LLC 13G CIK 1773195 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	2,032,012	4.84%	—	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
8	Trails Edge Capital Partners, LP 13F CIK 2077247 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,514,000	3.60%	+1,514,000	Jun 30, 2026	carried, not yet filed for the newest quarter
9	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,512,896	3.60%	+1,512,896	Jun 30, 2026	carried, not yet filed for the newest quarter
9.1	State Street(R) SPDR(R) S&P(R) Biotech ETF Fund S000010018 · Registered fund · Jun 30, 2026 SPDR SERIES TRUST, not summed	930,353	2.21%	—	Jun 30, 2026	SPDR SERIES TRUST, not summed
9.2	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	7,114	0.02%	—	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
9.3	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	589	0.00%	—	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
9.4	State Street(R) SPDR(R) Portfolio MSCI Global Stock Market ETF Fund S000036082 · Registered fund · Jun 30, 2026 SPDR INDEX SHARES FUNDS, not summed	356	0.00%	—	Jun 30, 2026	SPDR INDEX SHARES FUNDS, not summed
9.5	State Street Balanced Index Fund Fund S000082802 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	65	0.00%	—	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
10	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,451,909	3.46%	+1,451,909	Jun 30, 2026	carried, not yet filed for the newest quarter
11	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	1,111,470	2.65%	—	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
12	Jupiter Topco LLC 13F CIK 2146052 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,091,464	2.60%	+1,091,464	Jun 30, 2026	carried, not yet filed for the newest quarter
13	Vestal Point Capital, LP 13F CIK 1974915 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,013,000	2.41%	+1,013,000	Jun 30, 2026	carried, not yet filed for the newest quarter
14	Woodline Partners LP 13F CIK 1784547 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	917,176	2.18%	+917,176	Jun 30, 2026	carried, not yet filed for the newest quarter
15	Sanofi 13F CIK 1121404 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	821,917	1.96%	+821,917	Jun 30, 2026	carried, not yet filed for the newest quarter
16	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	781,534	1.86%	+781,534	Jun 30, 2026	carried, not yet filed for the newest quarter
17	683 Capital Management, LLC 13F CIK 1404574 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	750,000	1.79%	+750,000	Jun 30, 2026	carried, not yet filed for the newest quarter
18	ADAGE CAPITAL PARTNERS GP, L.L.C. 13F CIK 1165408 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	729,000	1.74%	+729,000	Jun 30, 2026	carried, not yet filed for the newest quarter
19	Balyasny Asset Management L.P. 13F CIK 1218710 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	714,948	1.70%	+714,948	Jun 30, 2026	carried, not yet filed for the newest quarter
20	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	702,087	1.67%	+702,087	Jun 30, 2026	carried, not yet filed for the newest quarter
21	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	647,962	1.54%	+647,962	Jun 30, 2026	carried, not yet filed for the newest quarter
22	STEMPOINT CAPITAL LP 13F CIK 1952142 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	622,723	1.48%	+622,723	Jun 30, 2026	carried, not yet filed for the newest quarter
23	Palo Alto Investors LP 13F CIK 1306923 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	603,489	1.44%	+603,489	Jun 30, 2026	carried, not yet filed for the newest quarter
24	Sofinnova Investments, Inc. 13F CIK 1631134 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	565,199	1.35%	+565,199	Jun 30, 2026	carried, not yet filed for the newest quarter
25	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	546,992	1.30%	+546,992	Jun 30, 2026	carried, not yet filed for the newest quarter
26	Faga Daniel Insider CIK 1673528 · Apr 20, 2026 Director, President, CEO, issuer-wide, not summed	496,684	1.18%	—	Apr 20, 2026	Director, President, CEO, issuer-wide, not summed
27	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	487,213	1.16%	+487,213	Jun 30, 2026	carried, not yet filed for the newest quarter
27.1	Goldman Sachs Small Cap Growth Fund Fund S000061413 · Registered fund · Aug 31, 2026 Goldman Sachs Trust, not summed	40,680	0.10%	—	Aug 31, 2026	Goldman Sachs Trust, not summed
27.2	Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund Fund S000009355 · Registered fund · Jun 30, 2026 Goldman Sachs Variable Insurance Trust, not summed	3,870	0.01%	—	Jun 30, 2026	Goldman Sachs Variable Insurance Trust, not summed
27.3	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Aug 31, 2026 GOLDMAN SACHS TRUST, not summed	23	0.00%	-3,178	Aug 31, 2026	GOLDMAN SACHS TRUST, not summed
28	Point72 Asset Management, L.P. 13F CIK 1603466 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	408,330	0.97%	+408,330	Jun 30, 2026	carried, not yet filed for the newest quarter
29	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	310,886	0.74%	+310,886	Jun 30, 2026	carried, not yet filed for the newest quarter
30	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	309,285	0.74%	—	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
31	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 13F CIK 1164508 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	299,500	0.71%	+299,500	Jun 30, 2026	carried, not yet filed for the newest quarter
32	Federated Hermes Kaufmann Small Cap Fund Fund S000009730 · Registered fund · Jul 31, 2026 Federated Hermes Equity Funds, not summed	290,000	0.69%	0	Jul 31, 2026	Federated Hermes Equity Funds, not summed
33	FEDERATED HERMES, INC. 13F CIK 1056288 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	290,000	0.69%	+290,000	Jun 30, 2026	carried, not yet filed for the newest quarter
34	Ally Bridge Group (NY) LLC 13F CIK 1822947 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	284,287	0.68%	+284,287	Jun 30, 2026	carried, not yet filed for the newest quarter
35	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	256,873	0.61%	+256,873	Jun 30, 2026	carried, not yet filed for the newest quarter
35.1	Schwab U.S. Small-Cap ETF Fund S000026636 · Registered fund · Aug 31, 2026 SCHWAB STRATEGIC TRUST, not summed	126,789	0.30%	+32,240	Aug 31, 2026	SCHWAB STRATEGIC TRUST, not summed
35.2	Schwab Small-Cap Index Fund Fund S000005912 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	56,774	0.14%	+16,682	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
35.3	Schwab Small-Cap Equity Fund Fund S000005516 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	28,485	0.07%	0	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
35.4	Schwab Total Stock Market Index Fund Fund S000005913 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	25,291	0.06%	+13,491	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
35.5	Schwab U.S. Broad Market ETF Fund S000026631 · Registered fund · Aug 31, 2026 SCHWAB STRATEGIC TRUST, not summed	18,559	0.04%	+8,000	Aug 31, 2026	SCHWAB STRATEGIC TRUST, not summed
36	Nantahala Capital Management, LLC 13F CIK 1472322 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	250,000	0.60%	+250,000	Jun 30, 2026	carried, not yet filed for the newest quarter
37	Granahan Investment Management, LLC 13F CIK 1026710 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	238,304	0.57%	+238,304	Jun 30, 2026	carried, not yet filed for the newest quarter
38	Apis Capital Advisors, LLC 13F CIK 1386892 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	226,000	0.54%	+226,000	Jun 30, 2026	carried, not yet filed for the newest quarter
39	FRED ALGER MANAGEMENT, LLC 13F CIK 3520 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	218,400	0.52%	+218,400	Jun 30, 2026	carried, not yet filed for the newest quarter
39.1	ALGER SMALL CAP GROWTH FUND Fund S000009160 · Registered fund · Jul 31, 2026 ALGER FUNDS, not summed	32,915	0.08%	—	Jul 31, 2026	ALGER FUNDS, not summed
39.2	ALGER SMALL CAP GROWTH INSTITUTIONAL FUND Fund S000009202 · Registered fund · Jul 31, 2026 ALGER INSTITUTIONAL FUNDS, not summed	12,853	0.03%	—	Jul 31, 2026	ALGER INSTITUTIONAL FUNDS, not summed
40	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	201,096	0.48%	+201,096	Jun 30, 2026	carried, not yet filed for the newest quarter
40.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	12,040	0.03%	—	Jun 30, 2026	Northern Funds, not summed
41	AMERIPRISE FINANCIAL INC 13F CIK 820027 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	193,183	0.46%	+193,183	Jun 30, 2026	carried, not yet filed for the newest quarter
41.1	Columbia Research Enhanced Small Cap ETF Fund S000095313 · Registered fund · Jun 30, 2026 Columbia ETF Trust I, not summed	40	0.00%	—	Jun 30, 2026	Columbia ETF Trust I, not summed
42	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	191,220	0.46%	+191,220	Jun 30, 2026	carried, not yet filed for the newest quarter
43	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	168,790	0.40%	+168,790	Jun 30, 2026	carried, not yet filed for the newest quarter
44	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	164,793	0.39%	+164,793	Jun 30, 2026	carried, not yet filed for the newest quarter
45	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	163,851	0.39%	+163,851	Jun 30, 2026	carried, not yet filed for the newest quarter
46	VANGUARD STRATEGIC EQUITY FUND Fund S000002593 · Registered fund · Jun 30, 2026 VANGUARD HORIZON FUNDS, not summed	153,153	0.36%	—	Jun 30, 2026	VANGUARD HORIZON FUNDS, not summed
47	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · Aug 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	133,736	0.32%	+40,107	Aug 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
48	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	128,130	0.30%	+128,130	Jun 30, 2026	carried, not yet filed for the newest quarter
49	Rockefeller Capital Management L.P. 13F CIK 1739439 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	116,939	0.28%	+116,939	Jun 30, 2026	carried, not yet filed for the newest quarter
50	Ensign Peak Advisors, Inc 13F CIK 1454984 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	115,978	0.28%	+115,978	Jun 30, 2026	carried, not yet filed for the newest quarter

28 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 246 holders

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Key facts CIK 2091349 CUSIP 337185102 13F (30d) 32 filings 32 filers Visit website Investor relations