First Tracks Biotherapeutics, Inc.: which funds bought and sold

Institutions that bought and sold First Tracks Biotherapeutics shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 145 institutions that filed 13F reports for both quarters added to or opened positions in First Tracks Biotherapeutics, and 0 cut or closed them. Together they added a net 31.7M shares, — on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 12.1M shares; index fund managers were net buyers of 5.4M shares. 145 opened a new position and 0 sold out entirely.

Bought, Q2 2026 145 institutions, 145 of them new holders Sold, Q2 2026 0 institutions, 0 of them sold out

Net change, all compared +31.7M shares (—)

Net change, active managers +12.1M shares (—), 31 bought, 0 sold

Buyers versus sellers

institutions compared, 145

145 bought 0 sold

Active managers and hedge funds 31 bought · 0 sold · +12.1M

Index fund managers 9 bought · 0 sold · +5.4M

Other institutions 105 bought · 0 sold · +14.2M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Ecor1 Capital, LLC Hedge fund	+3.2M New position	3.2M	$63.9M
Tcg Crossover Management, LLC	+2.9M New position	2.9M	$58.3M
FMR LLC Active manager	+2.1M New position	2.1M	$41.3M
Affinity Asset Advisors, LLC	+2.0M New position	2.0M	$40.9M
Blackrock, Inc. Index funds	+2.0M New position	2.0M	$39.5M
Trails Edge Capital Partners, LP	+1.5M New position	1.5M	$30.5M
Vanguard Capital Management LLC Index funds	+1.5M New position	1.5M	$29.2M
Vestal Point Capital, LP Hedge fund	+1.0M New position	1.0M	$20.4M
Woodline Partners LP Hedge fund	+917K New position	917K	$18.5M
Sanofi	+822K New position	822K	$16.5M
Morgan Stanley	+782K New position	782K	$15.7M
683 Capital Management, LLC Hedge fund	+750K New position	750K	$15.1M
Adage Capital Partners Gp, L.L.C. Hedge fund	+729K New position	729K	$14.7M
Balyasny Asset Management L.P. Hedge fund	+715K New position	715K	$14.4M
Geode Capital Management, LLC Index funds	+702K New position	702K	$14.1M
Bank Of America Corp	+648K New position	648K	$13M
Stempoint Capital LP	+623K New position	623K	$12.5M
Palo Alto Investors LP	+603K New position	603K	$12.1M
Sofinnova Investments, Inc.	+565K New position	565K	$11.4M
Vanguard Portfolio Management LLC Index funds	+547K New position	547K	$11M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Ecor1 Capital, LLC Hedge fund	+3.2M New position	3.2M	$63.9M
FMR LLC Active manager	+2.1M New position	2.1M	$41.3M
Vestal Point Capital, LP Hedge fund	+1.0M New position	1.0M	$20.4M
Woodline Partners LP Hedge fund	+917K New position	917K	$18.5M
683 Capital Management, LLC Hedge fund	+750K New position	750K	$15.1M
Adage Capital Partners Gp, L.L.C. Hedge fund	+729K New position	729K	$14.7M
Balyasny Asset Management L.P. Hedge fund	+715K New position	715K	$14.4M
Nantahala Capital Management, LLC Hedge fund	+500K New position	500K	$10.1M
Point72 Asset Management, L.P. Hedge fund	+408K New position	408K	$8.2M
Arrowstreet Capital, Limited Partnership Hedge fund	+300K New position	300K	$6M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
No institution cut its holding.

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
None of the active managers on our list.

New positions

largest by value

Institution	Shares	Value June 30, 2026
Ecor1 Capital, LLCHedge fund	3.2M	$63.9M
Tcg Crossover Management, LLC	2.9M	$58.3M
FMR LLCActive manager	2.1M	$41.3M
Affinity Asset Advisors, LLC	2.0M	$40.9M
Blackrock, Inc.Index funds	2.0M	$39.5M
Trails Edge Capital Partners, LP	1.5M	$30.5M
Vanguard Capital Management LLCIndex funds	1.5M	$29.2M
Vestal Point Capital, LPHedge fund	1.0M	$20.4M
Woodline Partners LPHedge fund	917K	$18.5M
Sanofi	822K	$16.5M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
No institution sold its whole holding.

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 148
Ten largest holders: 55.1%
Index fund managers: 16.3%
Active managers and hedge funds: 36.9%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	New	Net change in shares	Net %
Active managers and hedge funds	31	31	+12.1M	—
Index fund managers	9	9	+5.4M	—
Other institutions	105	105	+14.2M	—

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on First Tracks Biotherapeutics.

Only managers that filed a holdings report for both quarters are compared (145 here). 3 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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