Tenable Holdings, Inc.
US ˙ NasdaqGS ˙ US88025T1025

SecurityTENB / Tenable Holdings, Inc.
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership228,893 shares
Latest Disclosed Value $ 3,871,725
Squarepoint Ops LLC ownership in TENB / Tenable Holdings, Inc.

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 228,893 shares of Tenable Holdings, Inc. (US:TENB) valued at $3,871,725 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 13,667 shares of Tenable Holdings, Inc.. This represents a change in shares of 1,574.79% during the quarter. The current value of the position is $6,795,833 USD.

Squarepoint Ops 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 0 of underlying shares valued at $0 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)
2026-05-15 2026-03-31 13F TENABLE HLDGS COM 88025T102 228,893 215,226 1,574.79 3,872 1,105.92 0.0045
2026-02-13 2025-12-31 13F TENABLE HLDGS COM 88025T102 13,667 -43,077 -75.91 322 -80.59 0.0003
2025-11-14 2025-09-30 13F TENABLE HLDGS COM 88025T102 56,744 -1,151,760 -95.30 1,655 -95.95 0.0017
2025-08-27 2025-06-30 13F/A-1 TENABLE HLDGS COM 88025T102 1,208,504 589,786 95.32 40,823 88.63 0.0424
2025-08-14 2025-06-30 13F TENABLE HLDGS COM 88025T102 1,208,504 589,786 40,823 0.0424
2025-08-27 2025-03-31 13F/A-1 TENABLE HLDGS COM 88025T102 618,718 472,997 324.59 21,643 277.17 0.0263
2025-05-15 2025-03-31 13F TENABLE HLDGS COM 88025T102 618,718 472,997 21,643 0.0263
2025-02-14 2024-12-31 13F TENABLE HLDGS COM 88025T102 145,721 -8,821 -5.71 5,738 -8.37 0.0057
2024-11-14 2024-09-30 13F TENABLE HLDGS COM 88025T102 154,542 154,542 6,262 0.0098
2023-11-14 2023-09-30 13F TENABLE HLDGS COM 88025T102 0 -60,349 -100.00 0 -100.00
2023-08-14 2023-06-30 13F TENABLE HLDGS COM 88025T102 60,349 -35,962 -37.34 2,628 -42.56 0.0080
2023-05-15 2023-03-31 13F TENABLE HLDGS COM 88025T102 96,311 96,311 4,576 0.0186
2023-02-14 2022-12-31 13F TENABLE HLDGS COM 88025T102 0 -148,441 -100.00 0 -100.00
2022-11-14 2022-09-30 13F TENABLE HLDGS COM 88025T102 148,441 -22,990 -13.41 5,166 -33.64 0.0261
2022-08-15 2022-06-30 13F TENABLE HLDGS COM 88025T102 171,431 23,903 16.20 7,785 -8.69 0.0433
2022-05-16 2022-03-31 13F TENABLE HLDGS COM 88025T102 147,528 132,456 878.82 8,526 927.23 0.0365
2022-02-14 2021-12-31 13F TENABLE HLDGS COM 88025T102 15,072 15,072 830 0.0022
2021-11-15 2021-09-30 13F TENABLE HLDGS COM 88025T102 0 -176,079 -100.00 0 -100.00
2021-08-16 2021-06-30 13F TENABLE HLDGS COM 88025T102 176,079 -66,520 -27.42 7,281 -17.05 0.0277
2021-05-17 2021-03-31 13F TENABLE HLDGS COM 88025T102 242,599 242,599 8,778 0.0514
2021-02-16 2020-12-31 13F TENABLE HLDGS COM 88025T102 0 -12,390 -100.00 0 -100.00
2020-11-16 2020-09-30 13F TENABLE HLDGS COM 88025T102 12,390 -606 -4.66 468 20.93 0.0063
2020-08-14 2020-06-30 13F TENABLE HLDGS COM 88025T102 12,996 -9,264 -41.62 387 -20.53 0.0063
2020-05-15 2020-03-31 13F TENABLE HLDGS COM 88025T102 22,260 22,260 487 0.0125
2020-02-14 2019-12-31 13F TENABLE HLDGS COM 88025T102 0 -81,702 -100.00 0 -100.00
2019-11-14 2019-09-30 13F TENABLE HLDGS COM 88025T102 81,702 23,520 40.42 1,828 10.05 0.0163
2019-08-14 2019-06-30 13F TENABLE HLDGS COM 88025T102 58,182 50,197 628.64 1,661 556.52 0.0162
2019-05-15 2019-03-31 13F TENABLE HLDGS COM 88025T102 7,985 -6,501 -44.88 253 -21.18 0.0027
2019-02-14 2018-12-31 13F TENABLE HLDGS COM 88025T102 14,486 14,486 321 0.0037
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
(%)
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 108,200 0.00 4,715 -11.84 n/a n/a n/a
2024-05-15 2024-03-31 13F TENABLE HLDGS COM Call 108,200 5,348 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
(%)
2025-02-14 2024-12-31 13F TENABLE HLDGS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F TENABLE HLDGS COM Put 7,000 -92.42 284 -92.97 n/a n/a n/a
2024-08-14 2024-06-30 13F TENABLE HLDGS COM Put 92,400 15.64 4,027 1.95 n/a n/a n/a
2024-05-15 2024-03-31 13F TENABLE HLDGS COM Put 79,900 3,949 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.