ITS
InsiderTrading
TradesInsidersCompaniesCluster BuysRankingsAbout
ITS
InsiderTrading Screener

Track SEC Form 4 insider trades. See what corporate insiders are buying and selling.

Browse

  • Trades
  • Insiders
  • Companies
  • Cluster Buys
  • Rankings

Top Insiders

  • Mark Zuckerberg
  • Elon Musk
  • Jamie Dimon
  • Satya Nadella
  • Lisa Su
  • Jensen Huang

Screeners

  • CEO & CFO Purchases
  • Director Purchases
  • Top Buys This Week
  • Top Sales This Week
  • 10b5-1 Trades
  • Buy/Sell Ratios
  • Politician Overlap
  • Sectors

Learn

  • Learn
  • What is a Form 4?
  • About & Methodology
  • What are Cluster Buys?
  • Top Insider Rankings
  • Contact Us
  • Privacy Policy
  • Terms of Use

Data

  • SEC EDGAR Form 4 ↗
  • CongressStock.com ↗
  • Track13F.com ↗
  • About the data
© 2026 InsiderTradingScreener.com. Data from SEC EDGAR Form 4 filings.For informational purposes only. Not financial advice.
Home/Insiders/Atlas Venture Fund XI, L.P.

Atlas Venture Fund XI, L.P.

Insider

Insider
Total trades
27
Bought (open market)
$1.1M
Sold (open market)
$31M
Tickers traded
2
Atlas Venture Fund XI, L.P. has demonstrated a pronounced selling bias in recent months, with $30.97 million in total sell transactions compared to just $1.08 million in buys across 32 trades. The fund’s activity has centered on two holdings: SION and DYN. The sole recent purchase was a $1.08 million acquisition of SION shares on February 10, 2025, classified as a "P" transaction (indicating an open market or private purchase). In contrast, the fund executed 17 sales of DYN shares between February 26 and February 28, 2024, with individual transactions ranging from $5,302.50 to $6.65 million. The largest single sale occurred on February 27, 2024, when Atlas Venture Fund XI offloaded $6.65 million worth of DYN stock. The fund’s trading pattern suggests a strategic reduction in its DYN position, with multiple high-value disposals over a concentrated three-day period. The $30.97 million in DYN sales dwarf the single SION purchase, reinforcing a clear divestment trend. While the SION buy could signal renewed interest or portfolio rebalancing, the scale of selling in DYN indicates a more decisive shift away from that position. The absence of other recent transactions beyond these two tickers further narrows the fund’s recent focus to these holdings. The data reflects a net outflow of capital, with Atlas Venture Fund XI prioritizing liquidity events in DYN over new investments.

AI-assisted summary

Recent trades

Most recent Form 4 filings by Atlas Venture Fund XI, L.P..

  • Atlas Venture Fund XI, L.P.traded1,092,504 shares ofSIONat $0Feb 10, 2025Details
  • Atlas Venture Fund XI, L.P.traded61,463 shares ofSIONat $0Feb 10, 2025Details
  • Atlas Venture Fund XI, L.P.traded1,298,332 shares ofSIONat $0Feb 10, 2025Details
  • Atlas Venture Fund XI, L.P.

Explore insider screeners

Latest CEO & CFO PurchasesLatest CEO & CFO SalesDirector PurchasesOfficer PurchasesTop Purchases This WeekTop Sales This WeekTop Officer Buys (Month)10% Owner Filings10b5-1 Planned TradesDiscretionary TradesBuy/Sell RatiosPolitician-Insider Overlap
traded
1,806,317 shares of
SION
at $0
Feb 10, 2025Details
  • Atlas Venture Fund XI, L.P.traded1,051,051 shares ofSIONat $0Feb 10, 2025Details
  • Atlas Venture Fund XI, L.P.bought60,000 shares ofSIONat $18$1.1MFeb 10, 2025Details
  • Atlas Venture Fund XI, L.P.traded747,727 shares ofSIONFeb 10, 2025Details
  • Atlas Venture Fund XI, L.P.traded2,886,293 shares ofSIONFeb 10, 2025Details
  • Atlas Venture Fund XI, L.P.sold210 shares ofDYNat $25.25$5KFeb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold13,109 shares ofDYNat $24.83$325KFeb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold360 shares ofDYNat $25.25$9KFeb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold22,567 shares ofDYNat $24.83$560KFeb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold2,430 shares ofDYNat $25.25$61KFeb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold152,244 shares ofDYNat $24.83$3.8MFeb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold23,505 shares ofDYNat $24.38$573KFeb 27, 2024 · filed Feb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold2,216 shares ofDYNat $24.68$55KFeb 27, 2024 · filed Feb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold3,821 shares ofDYNat $24.68$94KFeb 27, 2024 · filed Feb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold40,455 shares ofDYNat $24.38$986KFeb 27, 2024 · filed Feb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold25,779 shares ofDYNat $24.68$636KFeb 27, 2024 · filed Feb 28, 2024Details
  • Atlas Venture Fund XI, L.P.sold272,923 shares ofDYNat $24.38$6.7MFeb 27, 2024 · filed Feb 28, 2024Details
  • View all 27 trades →