undamentalytics Newsletter

Tenable Holdings, Inc.: which funds bought and sold

Institutions that bought and sold Tenable 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, 172 institutions that filed 13F reports for both quarters added to or opened positions in Tenable Holdings, and 176 cut or closed them. Together they sold a net 2.8M shares, −2.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 4.1M shares (−17.1%); index fund managers were net buyers of 531K shares (+1.4%). 71 opened a new position and 65 sold out entirely.

Bought, Q2 2026 172 institutions, 71 of them new holders Sold, Q2 2026 176 institutions, 65 of them sold out
Net change, all compared −2.8M shares (−2.3%)
Net change, active managers −4.1M shares (−17.1%), 23 bought, 36 sold

Buyers versus sellers

institutions compared, 371
Active managers and hedge funds 23 bought · 36 sold · −4.1M
Index fund managers 7 bought · 4 sold · +531K
Other institutions 142 bought · 136 sold · +823K

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
Ameriprise Financial Inc +6.7M +79.1% 15.2M $562M
Freestone Grove Partners LP Hedge fund +1.1M +35208.0% 1.2M $42.5M
LSV Asset Management Active manager +1.1M +8132.6% 1.1M $40.1M
Voya Investment Management LLC +959K +147.9% 1.6M $59.3M
Arrowstreet Capital, Limited Partnership Hedge fund +675K +18.1% 4.4M $163M
Jane Street Group, LLC +636K +55.5% 1.8M $65.7M
Vanguard Portfolio Management LLC Index funds +603K +6.3% 10.2M $378M
FMR LLC Active manager +568K +15.9% 4.1M $153M
Metlife Investment Management, LLC +480K +739.2% 545K $20.1M
Goldman Sachs Group Inc +466K +23.5% 2.4M $90.3M
Point72 Asset Management, L.P. Hedge fund +459K +422.4% 568K $20.9M
Connor, Clark & Lunn Investment Management Ltd. +458K +498.9% 550K $20.3M
Millennium Management LLC Hedge fund +400K +69.7% 973K $35.9M
Portolan Capital Management, LLC +388K New position 388K $14.3M
Delta Global Management LP +321K New position 321K $11.8M
Schroder Investment Management Group Active manager +313K New position 313K $10.5M
First Trust Advisors LP +283K +10.5% 3.0M $110M
Dimensional Fund Advisors LP +264K +32.3% 1.1M $39.9M
Acadian Asset Management LLC Active manager +259K +114.9% 485K $17.9M
Manufacturers Life Insurance Company, The +230K +12.4% 2.1M $76.8M

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
Mackenzie Financial Corp −2.3M −92.7% 180K $6.6M
Jacobs Levy Equity Management, Inc Active manager −1.8M Sold out 0 —
Alyeska Investment Group, L.P. Hedge fund −1.7M Sold out 0 —
Shapiro Capital Management LLC −1.3M −30.5% 2.9M $106M
Balyasny Asset Management L.P. Hedge fund −951K Sold out 0 —
Trexquant Investment LP Hedge fund −695K −97.9% 15K $559,765
Two Sigma Investments, LP Hedge fund −657K −52.4% 597K $22M
Qube Research & Technologies Ltd Hedge fund −640K Sold out 0 —
Stephens Investment Management Group LLC −633K Sold out 0 —
Barclays PLC −572K −30.0% 1.3M $49.2M
UBS Group AG −555K −41.0% 800K $29.5M
HRT Financial LP −530K −55.6% 424K $15.6M
Archon Capital Management LLC −519K Sold out 0 —
Assenagon Asset Management S.A. −484K −92.9% 37K $1.4M
Russell Investments Group, Ltd. −460K −79.9% 116K $4M
Penserra Capital Management LLC −436K −12.9% 3.0M $109M
J. Goldman & Co LP Hedge fund −385K Sold out 0 —
Vanguard Capital Management LLC Index funds −351K −6.6% 5.0M $184M
Jpmorgan Chase & Co −329K −68.1% 154K $5.3M
BNP Paribas Financial Markets −326K −48.3% 349K $12.9M

New positions

largest by value
InstitutionSharesValue June 30, 2026
Portolan Capital Management, LLC 388K $14.3M
Delta Global Management LP 321K $11.8M
Schroder Investment Management GroupActive manager 313K $10.5M
Concentric Capital Strategies, LP 214K $7.9M
Summittx Capital, L.P. 213K $7.8M
Private Advisor Group, LLC 203K $7.5M
Readystate Asset Management LP 200K $7.4M
Wellington Management Group LLPActive manager 172K $6.4M
Katamaran Capital LLP 108K $4M
Clough Capital Partners L PHedge fund 105K $3.9M

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Jacobs Levy Equity Management, IncActive manager 1.8M $31.2M
Alyeska Investment Group, L.P.Hedge fund 1.7M $29.4M
Balyasny Asset Management L.P.Hedge fund 951K $16.1M
Qube Research & Technologies LtdHedge fund 640K $10.8M
Stephens Investment Management Group LLC 633K $10.7M
Archon Capital Management LLC 519K $8.8M
J. Goldman & Co LPHedge fund 385K $6.5M
Vident Advisory, LLC 302K $5.1M
OP Asset Management Ltd 277K $4.7M
Jupiter Asset Management LtdActive manager 275K $4.7M

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
311
Ten largest holders
55.8%
of 13F-reported shares
Index fund managers
32.8%
of 13F-reported shares
Active managers and hedge funds
17.2%
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 23 36 8 15 −4.1M −17.1%
Index fund managers 7 4 0 0 +531K +1.4%
Other institutions 142 136 63 50 +823K +1.4%

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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