Senti Biosciences Holdings, Inc.: which funds bought and sold

Institutions that bought and sold Senti Biosciences Holdings 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, 18 institutions that filed 13F reports for both quarters added to or opened positions in Senti Biosciences Holdings, and 0 cut or closed them. Together they added a net 2.0M shares, — on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 995K shares; index fund managers were net buyers of 852K shares. 18 opened a new position and 0 sold out entirely.

Bought, Q2 2026 18 institutions, 18 of them new holders Sold, Q2 2026 0 institutions, 0 of them sold out

Net change, all compared +2.0M shares (—)

Net change, active managers +995K shares (—), 2 bought, 0 sold

Buyers versus sellers

institutions compared, 18

18 bought 0 sold

Active managers and hedge funds 2 bought · 0 sold · +995K

Index fund managers 5 bought · 0 sold · +852K

Other institutions 11 bought · 0 sold · +162K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Nantahala Capital Management, LLC Hedge fund	+888K New position	888K	$976,800
Vanguard Capital Management LLC Index funds	+538K New position	538K	$591,254
Geode Capital Management, LLC Index funds	+187K New position	187K	$205,778
Citadel Advisors LLC Hedge fund	+107K New position	107K	$117,810
Vanguard Fiduciary Trust Co Index funds	+91K New position	91K	$100,312
Jane Street Group, LLC	+53K New position	53K	$57,783
Menlo Ventures Management, L.P.	+36K New position	36K	$39,311
Northern Trust Corp Index funds	+32K New position	32K	$35,369
Xtx Topco Ltd	+24K New position	24K	$25,971
Virtu Financial LLC	+23K New position	23K	$25,000
UBS Group AG	+14K New position	14K	$15,875
Tower Research Capital LLC (TRC)	+7,344 New position	7,344	$8,078
Royal Bank Of Canada	+4,015 New position	4,015	$4,000
Blackrock, Inc. Index funds	+4,004 New position	4,004	$4,404
Barclays PLC	+768 New position	768	$845
Sbi Securities Co., Ltd.	+334 New position	334	$367
Morgan Stanley	+169 New position	169	$186
Caitong International Asset Management Co., Ltd	+1 New position	1	$1

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Nantahala Capital Management, LLC Hedge fund	+888K New position	888K	$976,800
Citadel Advisors LLC Hedge fund	+107K New position	107K	$117,810

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
Nantahala Capital Management, LLCHedge fund	888K	$976,800
Vanguard Capital Management LLCIndex funds	538K	$591,254
Geode Capital Management, LLCIndex funds	187K	$205,778
Citadel Advisors LLCHedge fund	107K	$117,810
Vanguard Fiduciary Trust CoIndex funds	91K	$100,312
Jane Street Group, LLC	53K	$57,783
Menlo Ventures Management, L.P.	36K	$39,311
Northern Trust CorpIndex funds	32K	$35,369
Xtx Topco Ltd	24K	$25,971
Virtu Financial LLC	23K	$25,000

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: 18
Ten largest holders: 98.5%
Index fund managers: 42.4%
Active managers and hedge funds: 49.5%

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	2	2	+995K	—
Index fund managers	5	5	+852K	—
Other institutions	11	11	+162K	—

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.

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