Amplitude, Inc.: which funds bought and sold

Institutions that bought and sold Amplitude 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, 110 institutions that filed 13F reports for both quarters added to or opened positions in Amplitude, and 108 cut or closed them. Together they sold a net 2.9M shares, −3.5% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 775K shares (−2.5%); index fund managers were net buyers of 132K shares (+0.5%). 31 opened a new position and 46 sold out entirely.

Bought, Q2 2026 110 institutions, 31 of them new holders Sold, Q2 2026 108 institutions, 46 of them sold out

Net change, all compared −2.9M shares (−3.5%)

Net change, active managers −775K shares (−2.5%), 15 bought, 22 sold

Buyers versus sellers

institutions compared, 241

110 bought 23 108 sold

Active managers and hedge funds 15 bought · 22 sold · −775K

Index fund managers 7 bought · 4 sold · +132K

Other institutions 88 bought · 82 sold · −2.3M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
FMR LLC Active manager	+2.7M +80.6%	6.0M	$45.7M
Trigran Investments, Inc.	+1.9M +510.0%	2.3M	$17.8M
Royce & Associates LP Active manager	+1.1M New position	1.1M	$8M
Citadel Advisors LLC Hedge fund	+837K +2312.4%	873K	$6.7M
Centerbook Partners LP Hedge fund	+730K +1785.1%	771K	$5.9M
Lazard Asset Management LLC Active manager	+339K +2123.8%	355K	$2.7M
Squarepoint Ops LLC Hedge fund	+309K +43.4%	1.0M	$7.8M
Dimensional Fund Advisors LP	+279K +45.1%	896K	$6.9M
Numerai Gp LLC	+275K +1376.7%	295K	$2.3M
AQR Capital Management LLC Hedge fund	+273K +22.1%	1.5M	$11.5M
Susquehanna Fundamental Investments, LLC	+236K +198.4%	355K	$2.7M
Morgan Stanley	+229K +24.9%	1.1M	$8.8M
UBS Group AG	+200K +163.8%	322K	$2.5M
State Street Corp Index funds	+175K +7.2%	2.6M	$19.9M
S Squared Technology, LLC	+165K +109.7%	315K	$2.4M
Corient Private Wealth LP	+162K +982.2%	179K	$1.4M
Geode Capital Management, LLC Index funds	+151K +6.5%	2.5M	$19M
Divisadero Street Capital Management, LP	+100K New position	100K	$765,000
Quantbot Technologies LP Hedge fund	+98K New position	98K	$751,215
Xtx Topco Ltd	+95K +607.8%	110K	$844,040

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
FMR LLC Active manager	+2.7M +80.6%	6.0M	$45.7M
Royce & Associates LP Active manager	+1.1M New position	1.1M	$8M
Citadel Advisors LLC Hedge fund	+837K +2312.4%	873K	$6.7M
Centerbook Partners LP Hedge fund	+730K +1785.1%	771K	$5.9M
Lazard Asset Management LLC Active manager	+339K +2123.8%	355K	$2.7M
Squarepoint Ops LLC Hedge fund	+309K +43.4%	1.0M	$7.8M
AQR Capital Management LLC Hedge fund	+273K +22.1%	1.5M	$11.5M
Quantbot Technologies LP Hedge fund	+98K New position	98K	$751,215
Exoduspoint Capital Management, LP Hedge fund	+59K New position	59K	$453,377
Woodline Partners LP Hedge fund	+42K New position	42K	$317,896

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Nuveen, LLC	−2.3M −89.6%	265K	$2M
Millennium Management LLC Hedge fund	−1.6M −81.1%	384K	$2.9M
Point72 Asset Management, L.P. Hedge fund	−1.0M −41.5%	1.4M	$10.8M
Baillie Gifford & Co Active manager	−855K −32.4%	1.8M	$13.6M
Jacobs Levy Equity Management, Inc Active manager	−772K −44.6%	960K	$7.3M
Arrowmark Colorado Holdings LLC	−599K −47.7%	657K	$5M
Qube Research & Technologies Ltd Hedge fund	−597K Sold out	0	—
Arrowstreet Capital, Limited Partnership Hedge fund	−538K −93.4%	38K	$290,042
Monimus Capital Management, LP	−480K −38.0%	784K	$6M
Y-Intercept (Hong Kong) Ltd	−440K −96.8%	14K	$110,504
First Trust Advisors LP	−425K Sold out	0	—
Portolan Capital Management, LLC	−360K Sold out	0	—
Meros Investment Management, LP	−336K −28.9%	828K	$6.3M
Acadian Asset Management LLC Active manager	−333K −41.6%	468K	$3.6M
Bank Of America Corp	−312K −56.1%	244K	$1.9M
Westerly Capital Management, LLC	−300K −60.0%	200K	$1.5M
Light Street Capital Management, LLC Hedge fund	−293K Sold out	0	—
Goldman Sachs Group Inc	−280K −46.8%	318K	$2.4M
Two Sigma Investments, LP Hedge fund	−275K −39.8%	416K	$3.2M
G2 Investment Partners Management LLC	−270K Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Millennium Management LLC Hedge fund	−1.6M −81.1%	384K	$2.9M
Point72 Asset Management, L.P. Hedge fund	−1.0M −41.5%	1.4M	$10.8M
Baillie Gifford & Co Active manager	−855K −32.4%	1.8M	$13.6M
Jacobs Levy Equity Management, Inc Active manager	−772K −44.6%	960K	$7.3M
Qube Research & Technologies Ltd Hedge fund	−597K Sold out	0	—
Arrowstreet Capital, Limited Partnership Hedge fund	−538K −93.4%	38K	$290,042
Acadian Asset Management LLC Active manager	−333K −41.6%	468K	$3.6M
Light Street Capital Management, LLC Hedge fund	−293K Sold out	0	—
Two Sigma Investments, LP Hedge fund	−275K −39.8%	416K	$3.2M
Trexquant Investment LP Hedge fund	−208K −78.1%	58K	$446,676

New positions

largest by value

Institution	Shares	Value June 30, 2026
Royce & Associates LPActive manager	1.1M	$8M
Divisadero Street Capital Management, LP	100K	$765,000
Quantbot Technologies LPHedge fund	98K	$751,215
Diametric Capital, LP	88K	$676,191
Allstate Corp	83K	$636,434
Advisorshares Investments LLC	72K	$553,095
Exoduspoint Capital Management, LPHedge fund	59K	$453,377
Penbrook Management LLC	49K	$372,593
Woodline Partners LPHedge fund	42K	$317,896
Kingswood Wealth Advisors, LLC	31K	$240,042

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Qube Research & Technologies LtdHedge fund	597K	$4.1M
First Trust Advisors LP	425K	$2.9M
Portolan Capital Management, LLC	360K	$2.5M
Light Street Capital Management, LLCHedge fund	293K	$2M
G2 Investment Partners Management LLC	270K	$1.8M
Marathon Capital Management	172K	$1.2M
Algert Global LLCHedge fund	158K	$1.1M
Sei Investments Co	100K	$682,245
Wilson Asset Management (International) Pty Ltd	99K	$675,541
Walleye Capital LLCHedge fund	90K	$615,587

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 200
Ten largest holders: 61.1%
Index fund managers: 34.5%
Active managers and hedge funds: 36.8%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	15	22	6	8	−775K	−2.5%
Index fund managers	7	4	0	0	+132K	+0.5%
Other institutions	88	82	25	38	−2.3M	−9.0%

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 Amplitude.

Only managers that filed a holdings report for both quarters are compared (241 here). 9 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.

← Back to Amplitude, Inc. · Insiders · Politicians