undamentalytics Newsletter

Harmonic Inc.: which funds bought and sold

Institutions that bought and sold Harmonic 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, 128 institutions that filed 13F reports for both quarters added to or opened positions in Harmonic, and 143 cut or closed them. Together they added a net 1.4M shares, +1.5% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 5.5M shares (+26.6%); index fund managers were net sellers of 1.5M shares (−3.6%). 50 opened a new position and 41 sold out entirely.

Bought, Q2 2026 128 institutions, 50 of them new holders Sold, Q2 2026 143 institutions, 41 of them sold out
Net change, all compared +1.4M shares (+1.5%)
Net change, active managers +5.5M shares (+26.6%), 27 bought, 25 sold

Buyers versus sellers

institutions compared, 294
Active managers and hedge funds 27 bought · 25 sold · +5.5M
Index fund managers 5 bought · 5 sold · −1.5M
Other institutions 96 bought · 113 sold · −2.6M

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
Price T Rowe Associates Inc Active manager +4.7M +3648.1% 4.8M $78.3M
American Century Companies Inc Active manager +2.0M +164.8% 3.2M $52.5M
First Eagle Investment Management, LLC Active manager +1.7M +144.9% 2.9M $47.2M
Two Sigma Investments, LP Hedge fund +1.6M +920.2% 1.7M $28.3M
Arrowstreet Capital, Limited Partnership Hedge fund +1.1M +49.9% 3.3M $53.8M
Renaissance Technologies LLC Hedge fund +672K +63.8% 1.7M $28.2M
Jpmorgan Chase & Co +549K +203.0% 819K $13M
Point72 Asset Management, L.P. Hedge fund +488K +575.7% 573K $9.4M
Impax Asset Management Group PLC +475K New position 475K $7.8M
Morgan Stanley +452K +26.8% 2.1M $34.9M
Susquehanna International Group, LLP +366K +418.7% 453K $7.4M
State Street Corp Index funds +287K +5.9% 5.1M $84.1M
Squarepoint Ops LLC Hedge fund +286K +486.9% 345K $5.6M
Exoduspoint Capital Management, LP Hedge fund +244K New position 244K $4M
Nordea Investment Management AB +207K New position 207K $3.4M
Lazard Asset Management LLC Active manager +190K +564.5% 223K $3.6M
FMR LLC Active manager +177K +58.5% 480K $7.8M
Raymond James Financial Inc +173K +269.9% 238K $3.9M
Lisanti Capital Growth, LLC +142K New position 142K $2.3M
Public Sector Pension Investment Board +116K +29.0% 518K $8.5M

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
Alliancebernstein L.P. Active manager −1.8M −89.4% 218K $2M
Trigran Investments, Inc. −1.3M −41.0% 1.9M $31M
D. E. Shaw & Co., Inc. Hedge fund −1.2M −39.3% 1.9M $30.7M
Blackrock, Inc. Index funds −1.2M −6.1% 18.0M $294M
Qube Research & Technologies Ltd Hedge fund −945K Sold out 0 —
Alyeska Investment Group, L.P. Hedge fund −804K Sold out 0 —
Dimensional Fund Advisors LP −755K −20.5% 2.9M $47.7M
Vanguard Portfolio Management LLC Index funds −745K −12.1% 5.4M $88M
Clearline Capital LP Hedge fund −727K Sold out 0 —
Marshall Wace, LLP Hedge fund −691K −47.8% 754K $12.3M
Herald Investment Management Ltd −518K −66.0% 267K $4.4M
Citadel Advisors LLC Hedge fund −475K −59.3% 326K $5.3M
Toronado Partners, LLC −467K −82.7% 98K $1.6M
Pacer Advisors, Inc. −431K Sold out 0 —
UBS Group AG −262K −55.8% 208K $3.4M
Cinctive Capital Management LP Hedge fund −260K Sold out 0 —
State Of Wisconsin Investment Board −253K −41.3% 360K $5.9M
Nuveen, LLC −224K −16.4% 1.1M $18.7M
AQR Capital Management LLC Hedge fund −219K −40.6% 320K $5.2M
Martingale Asset Management L P Active manager −207K −62.0% 127K $2.1M

New positions

largest by value
InstitutionSharesValue June 30, 2026
Impax Asset Management Group PLC 475K $7.8M
Exoduspoint Capital Management, LPHedge fund 244K $4M
Nordea Investment Management AB 207K $3.4M
Lisanti Capital Growth, LLC 142K $2.3M
Acadian Asset Management LLCActive manager 101K $1.6M
LMR Partners LLPHedge fund 99K $1.6M
Y-Intercept (Hong Kong) Ltd 98K $1.6M
Imc-Chicago, LLC 96K $1.6M
Balyasny Asset Management L.P.Hedge fund 94K $1.5M
Firstwave Capital Management LLC 85K $1.4M

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Qube Research & Technologies LtdHedge fund 945K $8.5M
Alyeska Investment Group, L.P.Hedge fund 804K $7.2M
Clearline Capital LPHedge fund 727K $6.5M
Pacer Advisors, Inc. 431K $3.9M
Cinctive Capital Management LPHedge fund 260K $2.3M
White Pine Capital LLC 121K $1.1M
Penn Capital Management Company, LLCActive manager 116K $1M
Trexquant Investment LPHedge fund 107K $964,488
Econ Financial Services Corp 99K $885,338
Jacobs Levy Equity Management, IncActive manager 88K $786,010

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
257
Ten largest holders
56.3%
of 13F-reported shares
Index fund managers
41.7%
of 13F-reported shares
Active managers and hedge funds
27.6%
of 13F-reported shares
Buying and selling by type of institution, March 31, 2026 to June 30, 2026
TypeBoughtSoldNewSold outNet change in sharesNet %
Active managers and hedge funds 27 25 11 12 +5.5M +26.6%
Index fund managers 5 5 0 0 −1.5M −3.6%
Other institutions 96 113 39 29 −2.6M −8.4%

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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