Tenable Holdings
TENB
304 hedge funds and large institutions have $2B invested in Tenable Holdings in 2026 Q1 according to their latest regulatory filings, with 66 funds opening new positions, 132 increasing their positions, 83 reducing their positions, and 37 closing their positions.
96,275% more call options, than puts
Call options by funds: $7.71M | Put options by funds: $8K
78% more first-time investments, than exits
New positions opened: 66 | Existing positions closed: 37
59% more repeat investments, than reductions
Existing positions increased: 132 | Existing positions reduced: 83
8.93% more ownership
Funds ownership: 94.15% → 103.08% (+8.9%)
8% more funds holding
Funds holding: 281 → 304 (+23)
24% less capital invested
Capital invested by funds: $2.64B → $2B (-$640M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$49.9M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
+$43.7M |
| 3 |
Ameriprise
Minneapolis,
Minnesota
|
+$40.7M |
| 4 |
Jacobs Levy Equity Management
Florham Park,
New Jersey
|
+$38.7M |
| 5 |
SCM
Shapiro Capital Management
Atlanta,
Georgia
|
+$26.4M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
-$36.5M |
| 2 |
First Trust Advisors
Wheaton,
Illinois
|
-$32.6M |
| 3 |
Skandinaviska Enskilda Banken (SEB)
Stockholm,
Sweden
|
-$23.2M |
| 4 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
-$23.1M |
| 5 |
D.E. Shaw & Co
New York
|
-$23.1M |
TENB Hedge Fund Activity: Q1 2026 in Review
304 of the 8,129 institutional investors tracked by Wall St. Rank reported a position in Tenable Holdings (TENB) for Q1 2026, worth a combined $2B — down 24% from $2.64B a quarter earlier.
Buyers outnumbered sellers: 66 funds opened new TENB positions and 37 closed out — a net gain of 29 holders — while 132 added to existing stakes and 83 trimmed.
The largest buyer was Arrowstreet Capital, adding an estimated $49.9M. The largest seller was UBS Group, cutting an estimated $36.5M.
- 304 institutional investors held Tenable Holdings (TENB) as of Q1 2026, up from 281 in Q4 2025.
- Funds reported $2B of Tenable Holdings stock for Q1 2026, down 24% quarter-over-quarter.
- 66 funds opened new Tenable Holdings positions in Q1 2026 and 37 closed out, a net change of +29 holders.
- The largest Tenable Holdings buyer in Q1 2026 was Arrowstreet Capital, an estimated $49.9M added.
- The largest Tenable Holdings seller in Q1 2026 was UBS Group, an estimated $36.5M sold.
Based on aggregated 13F filings for Q1 2026.