Tenable Holdings, Inc.
US ˙ NasdaqGS ˙ US88025T1025

SecurityTENB / Tenable Holdings, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership207,107 shares
Latest Disclosed Value $ 6,996,074
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 3.06% increase in ownership of TENB / Tenable Holdings, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 207,107 shares of Tenable Holdings, Inc. (US:TENB) valued at $6,996,074 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 200,963 shares of Tenable Holdings, Inc.. This represents a change in shares of 3.06% during the quarter. The current value of the position is $5,767,930 USD.

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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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)
2025-08-26 2025-06-30 NP Tenable Holdings EC US88025T1025 207,107 6,144 3.06 6,996 -0.47 0.1571
2025-05-28 2025-03-31 NP Tenable Holdings EC US88025T1025 200,963 2,134 1.07 7,030 -10.22 0.1686
2025-02-25 2024-12-31 NP Tenable Holdings EC US88025T1025 198,829 -33,539 -14.43 7,830 -16.85 0.1710
2024-11-26 2024-09-30 NP Tenable Holdings EC US88025T1025 232,368 11,876 5.39 9,416 -2.02 0.1781
2024-08-26 2024-06-30 NP Tenable Holdings EC US88025T1025 220,492 18,776 9.31 9,609 -3.62 0.1957
2024-05-28 2024-03-31 NP Tenable Holdings EC US88025T1025 201,716 -6,325 -3.04 9,971 4.05 0.2081
2024-02-26 2023-12-31 NP Tenable Holdings EC US88025T1025 208,041 14,294 7.38 9,582 10.40 0.2045
2023-11-28 2023-09-30 NP Tenable Holdings EC US88025T1025 193,747 -3,886 -1.97 8,680 0.85 0.2264
2023-08-25 2023-06-30 NP Tenable Holdings EC US88025T1025 197,633 19,748 11.10 8,607 1.83 0.2041
2023-05-26 2023-03-31 NP Tenable Holdings EC US88025T1025 177,885 2,592 1.48 8,451 26.38 0.2250
2023-02-24 2022-12-31 NP Tenable Holdings EC US88025T1025 175,293 1,166 0.67 6,687 10.36 0.1840
2022-11-25 2022-09-30 NP Tenable Holdings EC US88025T1025 174,127 4,285 2.52 6,060 -21.43 0.1736
2022-08-25 2022-06-30 NP Tenable Holdings EC US88025T1025 169,842 26,288 18.31 7,713 -7.03 0.2130
2022-05-26 2022-03-31 NP Tenable Holdings EC US88025T1025 143,554 2,307 1.63 8,296 6.65 0.1933
2022-02-25 2021-12-31 NP Tenable Holdings EC US88025T1025 141,247 2,699 1.95 7,778 21.68 0.1687
2021-11-24 2021-09-30 NP Tenable Holdings EC US88025T1025 138,548 1,482 1.08 6,393 12.79 0.1408
2021-08-26 2021-06-30 NP Tenable Holdings EC US88025T1025 137,066 29,111 26.97 5,668 45.08 0.1216
2021-05-27 2021-03-31 NP Tenable Holdings EC US88025T1025 107,955 -1,835 -1.67 3,906 -31.92 0.0886
2021-02-25 2020-12-31 NP Tenable Holdings EC US88025T1025 109,790 -3,782 -3.33 5,738 33.82 0.1470
2020-11-25 2020-09-30 NP Tenable Holdings EC US88025T1025 113,572 10,650 10.35 4,287 39.73 0.1376
2020-08-27 2020-06-30 NP Tenable Holdings EC US88025T1025 102,922 40,343 64.47 3,068 124.43 0.1003
2020-06-01 2020-03-31 NP Tenable Holdings EC US88025T1025 62,579 5,287 9.23 1,368 -0.36 0.0559
2020-02-27 2019-12-31 NP Tenable Holdings EC 88025T102 57,292 833 1.48 1,373 8.63 0.0413
2019-11-27 2019-09-30 NP Tenable Holdings EC US88025T1025 56,459 56,459 1,264 0.0418
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.