TNON
Tenon Medical, Inc.
$0.29
-0.03 (-10.43%)
At close · Jul 2
Market Cap
$3.38M
Shares
11,573,428
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 12
Total Value: $266,748
Total Shares: 367,431
Institutional Ownership Trend
7 quarters
Holder Concentration
Across 12 13F filers · Δ vs Dec 31, 2025Top Holder
45.6%
+18.6 pts
Top 5
93.0%
+12.5 pts
Top 10
100.0%
+1.6 pts
HHI
2,764
Highly concentrated+1,053
Quarterly Activity
vs Dec 31, 2025
New
2
Increased
3
Decreased
2
Sold Out
7
Unchanged
5
Holder count:
-5
Institutional value:
-35.1%
Shares held:
-14.9%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega GEODE CAPITAL MANAGEMENT, LLC | +100,846 | 167,486 | |
| Mega CITIGROUP INC | +9,856 | 9,857 | |
| Mid Tower Research Capital LLC (TRC) | +782 | 916 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega NORTHERN TRUST CORP | −2,937 | 18,048 | |
| Mega UBS Group AG | −2,144 | 4,177 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 71,715 | $52,065 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 44,628 | $32,399 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 116,343 | $110,757 | |
| Mid DRW Securities, LLC | 102,521 | $97,599 | |
| Mega CITADEL ADVISORS LLC | 22,271 | $21,201 | |
| Mid XTX Topco Ltd | 18,856 | $17,950 | |
| Mid Virtu Financial LLC | 15,269 | $14,536 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mega GEODE CAPITAL MANAGEMENT, LLC | $121,594 | 45.58% | 167,486 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $52,065 | 19.52% | 71,715 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $32,399 | 12.15% | 44,628 | Shares | Defined | 2026-05-08 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $28,838 | 10.81% | 39,722 | Shares | Defined | 2026-04-28 | ||||
| Mega NORTHERN TRUST CORP Bank | $13,102 | 4.91% | 18,048 | Shares | Defined | 2026-05-14 | ||||
| Small Spectrum Asset Management, Inc. (NB/CA) | $7,731 | 2.90% | 10,650 | Shares | Sole | 2026-04-22 | ||||
| Mega CITIGROUP INC | $7,156 | 2.68% | 9,857 | Shares | Defined | 2026-05-11 | ||||
| Mega UBS Group AG | $3,031 | 1.14% | 4,177 | Shares | Defined | 2026-05-05 | ||||
| Mid Tower Research Capital LLC (TRC) | $665 | 0.25% | 916 | Shares | Defined | 2026-05-15 | ||||
| Mega MORGAN STANLEY | $136 | 0.05% | 188 | Shares | Defined | 2026-05-15 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $17 | 0.01% | 24 | Shares | Defined | 2026-05-12 | ||||
| Mid Allworth Financial LP | $14 | 0.01% | 20 | Shares | Sole | 2026-05-15 | ||||
| No holders match your search. | ||||||||||