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TENB in the 13F filings

Tenable HLDGS Inc · CUSIP 88025T102

Sector · Software and IT servicesTheme · Cloud and enterprise software· L3VLUP-definedTheme · Prepackaged software
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
18 May 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
29
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 2 listed it in both
Shares listed
17,298,848
combined, among listed positions
Reported value
$294m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 17 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +5,164,315.

Managers listing TENB in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

29 of 29 holders

ActionFiling
Arrowstreet Capital LP3,732,271$63munder 0.1%Added+2,375,58714 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)3,570,579$60munder 0.1%Added+2,082,30215 May 2026 (the filing on sec.gov)
AQR Capital Management LLC1,582,149$27munder 0.1%Added+1,016,41315 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC1,260,100$21munder 0.1%Added+736,80014 May 2026 (the filing on sec.gov)
Two Sigma Investments LP1,254,236$21munder 0.1%Added+21,14715 May 2026 (the filing on sec.gov)
Jane Street Group LLC1,144,552$19munder 0.1%Added+834,71012 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC950,710$16munder 0.1%Added+395,48515 May 2026 (the filing on sec.gov)
Citadel Advisors LLC751,919$13munder 0.1%Added+99,24815 May 2026 (the filing on sec.gov)
Millennium Management LLC573,256$9.7munder 0.1%Trimmed-248,19015 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP456,372$7.7m0.06%Added+272,40014 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.284,817$4.8munder 0.1%Trimmed-1,100,87515 May 2026 (the filing on sec.gov)
Farallon Capital Management LLC265,000$4.5munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC228,893$3.9munder 0.1%Added+215,22615 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC225,716$3.8munder 0.1%Trimmed-258,10213 May 2026 (the filing on sec.gov)
AllianceBernstein LP135,416$3.2munder 0.1%Trimmed-45,15315 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP158,167$2.7munder 0.1%Added+63,33215 May 2026 (the filing on sec.gov)
Invesco Ltd151,152$2.6munder 0.1%Added+16,84512 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc134,545$2.3munder 0.1%Added+16,10515 May 2026 (the filing on sec.gov)
Point72 Asset Management LP108,700$1.8munder 0.1%Added+58,70015 May 2026 (the filing on sec.gov)
Verition Fund Management LLC54,306$919kunder 0.1%Trimmed-232,07015 May 2026 (the filing on sec.gov)
Man Group PLC54,095$915kunder 0.1%Trimmed-150,57215 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd51,746$875kunder 0.1%Held018 May 2026 (the filing on sec.gov)
Quantbot Technologies LP43,065$728kunder 0.1%Trimmed-106,86913 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC39,492$668kunder 0.1%Added+15,82815 May 2026 (the filing on sec.gov)
Winton Group Ltd30,100$509kunder 0.1%Newnew12 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (4)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
3 in Q3 2024 to 5 in Q2 2026

Tracked managers listing it, at least.

05101520192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
TENB by quarter
QuarterHoldersReported valueBuyersSellers
Q3 20186$104mn.a.n.a.
Q4 20183$47mn.a.n.a.
Q1 20196$57mn.a.n.a.
Q2 20196$40mn.a.n.a.
Q3 20194$8.0mn.a.n.a.
Q4 20194$7.3mn.a.n.a.
Q1 20205$44mn.a.n.a.
Q2 20209$84mn.a.n.a.
Q3 20209$596mn.a.n.a.
Q4 202011$714mn.a.n.a.
Q1 20217$113mn.a.n.a.
Q2 20216$113mn.a.n.a.
Q3 20218$558mn.a.n.a.
Q4 20218$717mn.a.n.a.
Q1 202211$918mn.a.n.a.
Q2 20228$664mn.a.n.a.
Q3 20226$470mn.a.n.a.
Q4 20227$504mn.a.n.a.
Q1 20238$593mn.a.n.a.
Q2 20234$562mn.a.n.a.
Q3 20233$537mn.a.n.a.
Q4 20232$600m11
Q1 20243$677m30
Q2 20245$675m51
Q3 20243$635m31
Q4 20243$631m30
Q1 20253$12m30
Q2 20255$113m50
Q3 20256$103m51
Q4 20254$37m1616
Q1 20263$75m1715
Q2 20265$273m1516

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

TENB and GOOGL →TENB and AMZN →TENB and MSFT →Choose a stock to compare with TENB →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own TENB, latest filings →Back to the 13F Explorer →