Stocks › TRAX

First Tracks Biotherapeutics TRAX

US equityMarket cap rank #3180

$30.59 −$0.80 (-2.55%)

Pre-market · Oct 8, 7:00 am ET · After hours $29.99 -1.96%

Open$30.91

Prev close$31.39

Day range$30.53 – $31.75

Volume355.5K

Market cap$1.09B

P/E (TTM)–

Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership103.0%-3.13 pts vs. prior quarter

Institutions holding182-5 vs. prior quarter

Insider trades (recent)45 buys / 3 sellsNet buying

Short interest12.59% of floatDays to cover 7.5 · as of 15 Sep 2026

Short-sale volume share19.6%5-day average of daily volume

Short-sale volume as % of daily volume

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$6.68M (7 inflow days, 13 outflow days).

Net flow by order size, last 20 sessions

Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.

The five largest holders on file together own 35.4% of shares outstanding.

Largest holders

EcoR1 Capital, LLC8.88%
TCG Crossover Management, LLC8.10%
Sirenia Capital Management LP6.98%
FMR5.75%
Affinity Asset Advisors, LLC5.69%
BlackRock5.50%
Vanguard Capital Management, LLC4.60%
Trails Edge Capital Partners, LP4.24%

By investor type

Mutual Fund45.03%
Hedge Fund38.82%
VC/PE Fund10.58%
Public Company7.78%
Individual/Insider1.84%
Private Company0.26%
Sovereign Wealth Fund0.19%
Government Pension Fund0.17%

Reported short interest has risen from 11.21% to 12.59% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Recent institutional activity

Holder	Type	Period	Share change	New stake
EcoR1 Capital, LLC	Hedge Fund	2026/Q3	+3,174,519	8.9%
TCG Crossover Management, LLC	VC/PE Fund	2026/Q3	+2,895,304	8.1%
Sirenia Capital Management LP	Mutual Fund	2026/Q3	+2,495,777	7.0%
FMR	Mutual Fund	2026/Q3	+2,054,048	5.7%
Affinity Asset Advisors, LLC	Hedge Fund	2026/Q3	+2,032,012	5.7%
BlackRock	Mutual Fund	2026/Q3	+1,963,541	5.5%
Vanguard Capital Management, LLC	Mutual Fund	2026/Q3	+1,643,129	4.6%
Trails Edge Capital Partners, LP	Hedge Fund	2026/Q3	+1,514,000	4.2%
State Street Global Advisors	Mutual Fund	2026/Q3	+1,512,896	4.2%
Janus Henderson Group plc	Mutual Fund	2026/Q3	+1,091,464	3.1%
Vestal Point Capital, LP	Hedge Fund	2026/Q3	+1,013,000	2.8%
Woodline Partners LP	Hedge Fund	2026/Q3	+917,176	2.6%
Sanofi	Public Company	2026/Q3	+821,917	2.3%
Morgan Stanley	Public Company	2026/Q3	+772,365	2.2%
683 Capital Management, LLC	Hedge Fund	2026/Q3	+750,000	2.1%

Institutional buy/sell activity by reporting period, largest moves first.

Insider transactions

Date	Insider	Title	Transaction	Shares	Price	Held after
14 Sep 2026	John Orwin	Director	Derivative Exercise and Retained	+1,300	–	17,995
1 Sep 2026	J. Ware	Director	Derivative Exercise and Sale	-39,265	$44.78	15,660
14 Aug 2026	Paul Lizzul	Chief Medical Officer	Other Derivative Acquisition	+60,492	–	137,651
14 Aug 2026	Daniel Faga	Chief Executive Officer	Other Derivative Acquisition	+193,575	–	440,485
14 Aug 2026	Benjamin Stone	Chief Business Officer	Other Derivative Acquisition	+60,492	–	137,651
1 Aug 2026	Paul Lizzul	Chief Medical Officer	Other Derivative Acquisition	+60,492	–	77,159
1 Aug 2026	Daniel Faga	Chief Executive Officer	Other Derivative Acquisition	+193,576	–	387,156
1 Aug 2026	Benjamin Stone	Chief Business Officer	Other Derivative Acquisition	+60,492	–	77,159
14 Jun 2026	John Orwin	Director	Derivative Exercise and Retained	+6,030	–	16,695
14 Jun 2026	John Schmid	Director	Derivative Exercise and Retained	+6,030	–	37,652
14 Jun 2026	Dennis Fenton	Director	Derivative Exercise and Retained	+6,030	–	10,995
14 Jun 2026	Magda Marquet	Director	Derivative Exercise and Retained	+6,030	–	15,960
14 Jun 2026	J. Ware	Director	Derivative Exercise and Retained	+6,030	–	15,660
14 Jun 2026	Rita Jain	Director	Derivative Exercise and Retained	+7,330	–	19,194
11 May 2026	John Orwin	Director	Other Derivative Acquisition	+2,500	–	2,500
11 May 2026	John Orwin	Director	Other Derivative Acquisition	+7,000	$17.81	7,000
11 May 2026	John Schmid	Director	Other Derivative Acquisition	+2,500	–	2,500
11 May 2026	John Schmid	Director	Other Derivative Acquisition	+7,000	$17.81	7,000
11 May 2026	Dennis Fenton	Director	Other Derivative Acquisition	+2,500	–	2,500
11 May 2026	Dennis Fenton	Director	Other Derivative Acquisition	+7,000	$17.81	7,000

From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.

Short interest, by report

Report date	Shares short	% of float	Days to cover
15 Sep 2026	4,500,079	12.6%	7.5
31 Aug 2026	4,030,463	11.3%	7.2
14 Aug 2026	3,892,563	10.9%	6.8
31 Jul 2026	3,957,023	11.3%	4.6
15 Jul 2026	4,771,705	13.7%	4.2
30 Jun 2026	3,912,589	11.2%	4.8

Discussion

No comments yet — be the first to weigh in on TRAX.