HARMONIC INC.
Total Trades
20
Buys
4
Sells
13
Largest Trade
N/A
Insiders
7
Institutional Funds
208
Inst. Value
$1M+
Activist Filings
28
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| KRALL DAVID | Director | BUY | $100K–$500K | 48K | $10.50 | Dec 16, 2025 |
| Haltmayer Neven | SVP & GM | SELL | $100K–$500K | 30K | $10.45 | Dec 16, 2025 |
| Whalen Daniel T | Director | BUY | $15K–$50K | 2K | $8.99 | Jun 2, 2025 |
| Whalen Daniel T | Director | BUY | $1K–$15K | 1K | $9.99 | Feb 27, 2025 |
| Whalen Daniel T | Director | BUY | $15K–$50K | 3K | $10.15 | Feb 25, 2025 |
| Haltmayer Neven | SVP & Interim GM | SELL | $500K+ | 40K | $14.41 | Aug 2, 2024 |
| HARSHMAN PATRICK | President and CEO | EXERCISE | $100K–$500K | 133K | $3.14 | Dec 15, 2022 |
| HARSHMAN PATRICK | President and CEO | SELL | $1M+ | 84K | $13.50 | Dec 15, 2022 |
| Ben-Natan Nimrod | SVP & GM | SELL | $500K+ | 50K | $14.90 | Dec 2, 2022 |
| Haltmayer Neven | SVP, Video R&D | SELL | $100K–$500K | 25K | $14.80 | Nov 22, 2022 |
| HARSHMAN PATRICK | President and CEO | EXERCISE | N/A | 32K | — | Nov 17, 2022 |
| HARSHMAN PATRICK | President and CEO | SELL | $50K–$100K | 6K | $13.41 | Nov 17, 2022 |
| Haltmayer Neven | SVP, Video R&D | SELL | $100K–$500K | 25K | $13.91 | Nov 8, 2022 |
| Ben-Natan Nimrod | SVP & GM | SELL | $1M+ | 150K | $14.07 | Nov 7, 2022 |
| HARSHMAN PATRICK | President and CEO | SELL | $1M+ | 150K | $12.00 | Sep 20, 2022 |
| Kalra Sanjay | SVP and CFO | SELL | $500K+ | 54K | $11.36 | Aug 29, 2022 |
| HARSHMAN PATRICK | President and CEO | EXERCISE | N/A | 32K | — | Aug 17, 2022 |
| HARSHMAN PATRICK | President and CEO | SELL | $50K–$100K | 6K | $11.39 | Aug 17, 2022 |
| Graham Ian | SVP | SELL | $100K–$500K | 15K | $11.30 | Aug 8, 2022 |
| HARSHMAN PATRICK | President and CEO | SELL | $500K+ | 50K | $10.88 | Aug 5, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 208 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 4.5M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 3.3M | $1M+ | SH |
| Trigran Investments, Inc. | 3.0M | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 2.4M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4M | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 2.1M | $1M+ | SH |
| SCOPIA CAPITAL MANAGEMENT LP | 1.9M | $1M+ | SH |
| Leeward Investments, LLC - MA | 1.7M | $1M+ | SH |
| Silverberg Bernstein Capital Management LLC | 1.3M | $1M+ | SH |
| Alyeska Investment Group, L.P. | 1.2M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.0M | $1M+ | SH |
| Toronado Partners, LLC | 1.0M | $1M+ | SH |
| First Eagle Investment Management, LLC | 850K | $1M+ | SH |
| HERALD INVESTMENT MANAGEMENT Ltd | 785K | $1M+ | SH |
| Walleye Capital LLC | 726K | $1M+ | SH |
| Hillsdale Investment Management Inc. | 680K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 587K | $1M+ | SH |
| PHILADELPHIA TRUST CO | 581K | $1M+ | SH |
| INTECH INVESTMENT MANAGEMENT LLC | 537K | $1M+ | SH |
| PRINCIPAL FINANCIAL GROUP INC | 530K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Aug 7, 2025
3.9%
4.4M shares
SC 13G/A · Jun 5, 2025
10.6%
12.0M shares
SC 13G/A · Apr 30, 2025
9.8%
11.5M shares
SC 13G/A · Feb 7, 2025
6.7%
7.8M shares
Wellington Management Group LLP
SC 13G/A · Nov 8, 2024
1.8%
2.1M shares
SC 13G · Nov 8, 2024
5.6%
6.5M shares
SC 13G/A · Nov 7, 2024
4.9%
5.7M shares
SC 13D/A · Jul 12, 2024
3.3%
3.9M shares
SC 13D · Apr 26, 2024
5.4%
6.1M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
8.6%
9.7M shares
SC 13D/A · Jan 22, 2024
3.9%
4.4M shares
SC 13G/A · Jan 22, 2024
15.7%
17.6M shares
SC 13D · Sep 21, 2023
5.1%
5.7M shares
SC 13D/A · Apr 12, 2023
4.4%
4.9M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G/A · Feb 14, 2023
1.1%
1.3M shares
SC 13G · Feb 10, 2023
7.0%
7.4M shares
SC 13G/A · Jan 26, 2023
15.7%
16.5M shares
SC 13G/A · Jan 20, 2023
15.7%
16.5M shares
SC 13D/A · Oct 19, 2022
5.7%
6.0M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G/A · Oct 11, 2022
9.6%
10.1M shares
SC 13D/A · Sep 2, 2022
7.2%
7.5M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G · Aug 10, 2022
16.6%
17.4M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Aug 10, 2022
0.0%
94K shares
SC 13D/A · Aug 2, 2022
8.3%
8.6M shares
SC 13D/A · Mar 29, 2022
9.6%
10.0M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2022
17.0%
17.5M shares
SC 13G/A · Jan 27, 2022
15.5%
15.9M shares
SC 13G/A · Jan 25, 2022
15.5%
15.9M shares