Tenable Holdings, Inc.
US ˙ NasdaqGS ˙ US88025T1025

SecurityTENB / Tenable Holdings, Inc.
InstitutionWalleye Capital LLC
Latest Disclosed Ownership17,745 shares
Latest Disclosed Value $ 300,157
Walleye Capital LLC ownership in TENB / Tenable Holdings, Inc.

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 17,745 shares of Tenable Holdings, Inc. (US:TENB) valued at $300,157 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 30,592 shares of Tenable Holdings, Inc.. This represents a change in shares of -41.99% during the quarter. The current value of the position is $494,198 USD.

Walleye Capital LLC has a history of taking positions in derivatives of the underlying security (TENB) in the form of stock options. The firm currently holds call options representing 2,500 of underlying shares valued at $42,288 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

TENB / Tenable Holdings, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F/A-1 TENABLE HLDGS COM 88025T102 17,745 -12,847 -41.99 300 -58.28 0.0012
2026-05-08 2026-03-31 13F TENABLE HLDGS COM 88025T102 17,745 -12,847 300 0.0012
2026-02-13 2025-12-31 13F TENABLE HLDGS COM 88025T102 30,592 -45,681 -59.89 720 -67.67 0.0022
2025-11-14 2025-09-30 13F TENABLE HLDGS COM 88025T102 76,273 64,440 544.58 2,224 457.39 0.0083
2025-08-13 2025-06-30 13F TENABLE HLDGS COM 88025T102 11,833 4,211 55.25 400 50.00 0.0016
2025-05-14 2025-03-31 13F TENABLE HLDGS COM 88025T102 7,622 -40,465 -84.15 267 -85.95 0.0012
2025-02-13 2024-12-31 13F TENABLE HLDGS COM 88025T102 48,087 48,087 1,894 0.0046
2024-11-14 2024-09-30 13F TENABLE HLDGS COM 88025T102 0 -26,138 -100.00 0 -100.00
2024-08-14 2024-06-30 13F TENABLE HLDGS COM 88025T102 26,138 17,717 210.39 1,139 173.80 0.0020
2024-05-15 2024-03-31 13F TENABLE HLDGS COM 88025T102 8,421 -109,408 -92.85 416 -92.33 0.0007
2024-02-14 2023-12-31 13F TENABLE HLDGS COM 88025T102 117,829 117,829 5,427 0.0115
2023-08-14 2023-06-30 13F TENABLE HLDGS COM 88025T102 0 -71,033 -100.00 0 -100.00
2023-05-15 2023-03-31 13F TENABLE HLDGS COM 88025T102 71,033 -4,932 -6.49 3,375 16.43 0.0506
2023-02-14 2022-12-31 13F TENABLE HLDGS COM 88025T102 75,965 75,965 2,898 0.0528
2022-11-14 2022-09-30 13F TENABLE HLDGS COM 88025T102 0 -13,973 -100.00 0 -100.00
2022-08-19 2022-06-30 13F/A-1 TENABLE HLDGS COM 88025T102 13,973 -5,962 -29.91 635 -44.88 0.0175
2022-08-08 2022-06-30 13F TENABLE HLDGS COM 88025T102 13,973 -5,962 635 0.0175
2022-05-27 2022-03-31 13F/A-01 TENABLE HLDGS COM 88025T102 19,935 15,103 312.56 1,152 333.08 0.0308
2022-05-16 2022-03-31 13F TENABLE HLDGS COM 88025T102 19,935 15,103 1,152 0.0235
2022-05-27 2021-12-31 13F/A-01 TENABLE HLDGS COM 88025T102 4,832 4,832 266 0.0083
2022-03-03 2021-12-31 13F TENABLE HLDGS COM 88025T102 4,832 4,832 266 0.0066
2021-05-17 2021-03-31 13F TENABLE HLDGS COM 88025T102 0 -19,740 -100.00 0 -100.00
2021-02-16 2020-12-31 13F TENABLE HLDGS COM 88025T102 19,740 19,740 1,032 0.0689
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A TENABLE HLDGS COM Call 2,500 42 n/a n/a n/a
2026-05-08 2026-03-31 13F TENABLE HLDGS COM Call 2,500 42 n/a n/a n/a
2026-02-13 2025-12-31 13F TENABLE HLDGS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F TENABLE HLDGS COM Call 1,500 0.00 44 -14.00 n/a n/a n/a
2025-08-13 2025-06-30 13F TENABLE HLDGS COM Call 1,500 51 n/a n/a n/a
2024-11-14 2024-09-30 13F TENABLE HLDGS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F TENABLE HLDGS COM Call 3,400 1,600.00 148 1,544.44 n/a n/a n/a
2024-05-15 2024-03-31 13F TENABLE HLDGS COM Call 200 10 n/a n/a n/a
2024-02-14 2023-12-31 13F TENABLE HLDGS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-21 2023-09-30 13F/A TENABLE HLDGS COM Call 5,100 228 n/a n/a n/a
2023-11-14 2023-09-30 13F TENABLE HLDGS COM Call 5,100 228 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-02-13 2025-12-31 13F TENABLE HLDGS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F TENABLE HLDGS COM Put 6,400 187 n/a n/a n/a
2025-08-13 2025-06-30 13F TENABLE HLDGS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-14 2025-03-31 13F TENABLE HLDGS COM Put 1,400 49 n/a n/a n/a
2024-11-14 2024-09-30 13F TENABLE HLDGS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F TENABLE HLDGS COM Put 1,200 -85.37 52 -87.16 n/a n/a n/a
2024-05-15 2024-03-31 13F TENABLE HLDGS COM Put 8,200 121.62 405 138.24 n/a n/a n/a
2024-02-14 2023-12-31 13F TENABLE HLDGS COM Put 3,700 85.00 170 91.01 n/a n/a n/a
2023-11-21 2023-09-30 13F/A TENABLE HLDGS COM Put 2,000 90 n/a n/a n/a
2023-11-14 2023-09-30 13F TENABLE HLDGS COM Put 2,000 90 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.