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Tenon Medical
TNON

14 hedge funds and large institutions have $322K invested in Tenon Medical in 2025 Q1 according to their latest regulatory filings, with 7 funds opening new positions, 4 increasing their positions, 1 reducing their positions, and 2 closing their positions.

New
Increased
Maintained
Reduced
Closed

300% more repeat investments, than reductions

Existing positions increased: 4 | Existing positions reduced: 1

250% more first-time investments, than exits

New positions opened: 7 | Existing positions closed: 2

98% more capital invested

Capital invested by funds: $163K → $322K (+$159K)

40% more funds holding

Funds holding: 10 → 14 (+4)

0.01% less ownership

Funds ownership: 0.08% → 0.07% (-0.01%)

Holders
14
Holders Change
+4
Holders Change %
+40%
% of All Funds
0.19%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
7
Increased
4
Reduced
1
Closed
2
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
HF
HRT Financial
New York
+$66.4K
2
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$26.2K
3
Jane Street
Jane Street
New York
+$22.4K
4
UBS Group
UBS Group
Switzerland
+$17.9K
5
EGM
Engineers Gate Manager
New York
+$17.6K

Top Sellers

Rank Fund Capital Flow
1
Renaissance Technologies
Renaissance Technologies
New York
-$50.8K
2
VF
Virtu Financial
New York
-$22K
3
Morgan Stanley
Morgan Stanley
New York
-$449
4
BlackRock
BlackRock
New York
-$2
Name Holding Trade Value Shares
Change 		Change in
Stake
HF
1
HRT Financial
New York
$87K +$66.4K +1,182 New
SAMC
2
Spectrum Asset Management (California)
California
$54.1K – – –
Geode Capital Management
3
Geode Capital Management
Massachusetts
$42.3K +$3.54K +63 +12%
Susquehanna International Group
4
Susquehanna International Group
Pennsylvania
$34.4K +$26.2K +466 New
Jane Street
5
Jane Street
New York
$29.5K +$22.4K +399 New
UBS Group
6
UBS Group
Switzerland
$28.3K +$17.9K +318 +489%
EGM
7
Engineers Gate Manager
New York
$23.1K +$17.6K +313 New
TRCT
8
Tower Research Capital (TRC)
New York
$15.8K +$9.66K +172 +410%
SS
9
SBI Securities
Japan
$4.25K +$3.26K +58 New
Barclays
10
Barclays
United Kingdom
$1.15K +$899 +16 New
BNP Paribas Financial Markets
11
BNP Paribas Financial Markets
France
$1.11K +$786 +14 +1,400%
Morgan Stanley
12
Morgan Stanley
New York
$397 -$449 -8 -62%
Citigroup
13
Citigroup
New York
$253 +$169 +3 New
Bank of America
14
Bank of America
North Carolina
$44 – – –
Renaissance Technologies
15
Renaissance Technologies
New York
– -$50.8K -771 Closed
VF
16
Virtu Financial
New York
– -$22K -341 Closed
BlackRock
17
BlackRock
New York
– -$2 – –

TNON Hedge Fund Activity: Q1 2025 in Review

14 of the 7,463 institutional investors tracked by Wall St. Rank reported a position in Tenon Medical (TNON) for Q1 2025, worth a combined $322K — up 98% from $163K a quarter earlier.

Buyers outnumbered sellers: 7 funds opened new TNON positions and 2 closed out — a net gain of 5 holders — while 4 added to existing stakes and 1 trimmed.

The largest buyer was HRT Financial, opening a new position worth an estimated $66.4K. The largest seller was Renaissance Technologies, exiting entirely with an estimated $50.8K sold.

  • 14 institutional investors held Tenon Medical (TNON) as of Q1 2025, up from 10 in Q4 2024.
  • Funds reported $322K of Tenon Medical stock for Q1 2025, up 98% quarter-over-quarter.
  • 7 funds opened new Tenon Medical positions in Q1 2025 and 2 closed out, a net change of +5 holders.
  • The largest Tenon Medical buyer in Q1 2025 was HRT Financial, an estimated $66.4K added.
  • The largest Tenon Medical seller in Q1 2025 was Renaissance Technologies, an estimated $50.8K sold.

Based on aggregated 13F filings for Q1 2025.