XERS · Insider trading · 13F holders · Congress trades
Xeris Biopharma Holdings, Inc. (XERS)
Who is buying and selling XERS: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 9
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $1.2M
- Congress trades, 12 months
- 0
XERS at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 3 XERS insiders filed 10 sales worth $1.2M on SEC Form 4, and no open-market purchases; 10 of the sales were pre-planned under Rule 10b5-1.
- 9 13F filers hold XERS among their 50 largest positions, worth $76.2M combined. The biggest bets by portfolio weight are Rosalind Advisors, Inc. (8.7%), Ishara Investments LP (7.2%) and Vilga Financial Planning LLC (6.0%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
- No member of Congress has disclosed a trade in XERS.
- XERS last closed at $10.75 on Oct 29, 2026.
XERS insider trading
Between Aug 1, 2026 and Oct 29, 2026, 3 XERS insiders filed 10 sales worth $1.2M on SEC Form 4, and no open-market purchases; 10 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 2, 2026 | Hecht Beth | See Remarks | Sale10b5-1 | 16,666 | $9.41 | $157K | SEC |
| Oct 2, 2026 | McCulloch Kevin | See Remarks | Sale10b5-1 | 15,000 | $9.41 | $141K | SEC |
| Oct 2, 2026 | Pieper Steven | See Remarks | Sale10b5-1 | 5,000 | $9.41 | $47K | SEC |
| Sep 29, 2026 | McCulloch Kevin | See Remarks | Sale10b5-1 | 25,000 | $10.00 | $250K | SEC |
| Sep 1, 2026 | Hecht Beth | See Remarks | Sale10b5-1 | 16,666 | $8.49 | $141K | SEC |
| Sep 1, 2026 | McCulloch Kevin | See Remarks | Sale10b5-1 | 15,000 | $8.49 | $127K | SEC |
| Sep 1, 2026 | Pieper Steven | See Remarks | Sale10b5-1 | 5,000 | $8.50 | $43K | SEC |
| Aug 12, 2026 | Pieper Steven | See Remarks | Sale10b5-1 | 5,000 | $8.50 | $43K | SEC |
| Aug 4, 2026 | Hecht Beth | See Remarks | Sale10b5-1 | 16,666 | $8.01 | $134K | SEC |
| Aug 4, 2026 | McCulloch Kevin | See Remarks | Sale10b5-1 | 15,000 | $8.02 | $120K | SEC |
Who owns XERS? Hedge funds and superinvestors
9 13F filers hold XERS among their 50 largest positions, worth $76.2M combined. The biggest bets by portfolio weight are Rosalind Advisors, Inc. (8.7%), Ishara Investments LP (7.2%) and Vilga Financial Planning LLC (6.0%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Rosalind Advisors, Inc.Investment manager | 8.7% | $23.0M | 2,908,981 | -10.0% shares | Q2 2026 |
| Parkman Healthcare Partners LLCHedge fund | 1.5% | $14.3M | 1,807,621 | +5.0% shares | Q2 2026 |
| Vilga Financial Planning LLCWealth manager | 6.0% | $10.1M | 1,060,000 | — | Q3 2026 |
| Ishara Investments LPHedge fund | 7.2% | $9.7M | 1,230,000 | +20.0% shares | Q2 2026 |
| Knott David M JrInvestment manager | 4.4% | $8.4M | 1,060,000 | +0.0% shares | Q2 2026 |
| Essex Investment Management Co LLCAsset manager | 1.0% | $6.6M | 693,260 | -3.1% shares | Q3 2026 |
| Cliffwater LLCMutual fund manager | 0.5% | $2.1M | 263,158 | New | Q2 2026 |
| Diadema Partners LPHedge fund | 0.4% | $1.1M | 132,746 | +0.0% shares | Q2 2026 |
| Palo Alto Investors LPHedge fund | 0.1% | $827K | 104,410 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 2, Q2 2026: 7). Screen XERS in the grand portfolio →
XERS stock trades by members of Congress
No member of Congress has disclosed a trade in XERS.
XERS questions and answers
Are insiders buying XERS stock?
Between Aug 1, 2026 and Oct 29, 2026, 3 XERS insiders filed 10 sales worth $1.2M on SEC Form 4, and no open-market purchases; 10 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own XERS?
9 13F filers hold XERS among their 50 largest positions, worth $76.2M combined. The biggest bets by portfolio weight are Rosalind Advisors, Inc. (8.7%), Ishara Investments LP (7.2%) and Vilga Financial Planning LLC (6.0%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
Has Congress traded XERS?
No member of Congress has disclosed a trade in XERS.
Who is the largest holder of XERS?
Among 13F filers, Rosalind Advisors, Inc. reports the largest XERS position, $23.0M (2,908,981 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Rosalind Advisors, Inc.'s: 8.7% of its portfolio.
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